AbstractIterableAssert (AssertJ fluent assertions 2.9.0 API)

java.lang.Object
- org.assertj.core.api.AbstractAssert<SELF,ACTUAL>
- - org.assertj.core.api.AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>

Type Parameters:
SELF - the "self" type of this assertion class. Please read "Emulating 'self types' using Java Generics to simplify fluent API implementation" for more details.
ACTUAL - the type of the "actual" value.
ELEMENT - the type of elements of the "actual" value.
ELEMENT_ASSERT - used for navigational assertions to return the right assert type.

All Implemented Interfaces:

Assert<SELF,ACTUAL>, Descriptable<SELF>, EnumerableAssert<SELF,ELEMENT>, ExtensionPoints<SELF,ACTUAL>, ObjectEnumerableAssert<SELF,ELEMENT>

Direct Known Subclasses:

AbstractListAssert, ClassBasedNavigableIterableAssert, FactoryBasedNavigableIterableAssert
```
public abstract class AbstractIterableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>,ELEMENT,ELEMENT_ASSERT extends AbstractAssert<ELEMENT_ASSERT,ELEMENT>>
extends AbstractAssert<SELF,ACTUAL>
implements ObjectEnumerableAssert<SELF,ELEMENT>
```
Base class for implementations of ObjectEnumerableAssert whose actual value type is Collection.

Author:

Yvonne Wang, Alex Ruiz, Mathieu Baechler, Joel Costigliola, Maciej Jaskowski, Nicolas François, Mikhail Mazursky, Mateusz Haligowski, Lovro Pandzic, Marko Bekhta

Field Summary

Fields
Modifier and Type Field and Description

protected Iterables iterables
- Fields inherited from class org.assertj.core.api.AbstractAssert
  actual, info, myself

Fields
Modifier and Type	Field and Description
`protected Iterables`	`iterables`

Constructor Summary

Constructors
Constructor and Description

AbstractIterableAssert(ACTUAL actual, Class<?> selfType)

Constructors
Constructor and Description
`AbstractIterableAssert(ACTUAL actual, Class<?> selfType)`

Method Summary

Methods
Modifier and Type	Method and Description
`SELF`	`are(Condition<? super ELEMENT> condition)` Verifies that each element value satisfies the given condition.
`SELF`	`areAtLeast(int times, Condition<? super ELEMENT> condition)` Verifies that there are at least n elements in the actual group satisfying the given condition.
`SELF`	`areAtLeastOne(Condition<? super ELEMENT> condition)` Verifies that there is at least one element in the actual group satisfying the given condition.
`SELF`	`areAtMost(int times, Condition<? super ELEMENT> condition)` Verifies that there are at most n elements in the actual group satisfying the given condition.
`SELF`	`areExactly(int times, Condition<? super ELEMENT> condition)` Verifies that there are exactly n elements in the actual group satisfying the given condition.
`SELF`	`areNot(Condition<? super ELEMENT> condition)` Verifies that each element value does not satisfy the given condition.
`SELF`	`as(Description description)` Sets the description of the assertion that is going to be called after.
`SELF`	`as(String description, Object... args)` Sets the description of the assertion that is going to be called after.
`SELF`	`contains(ELEMENT... values)` Verifies that the actual group contains the given values, in any order.
`SELF`	`containsAll(Iterable<? extends ELEMENT> iterable)` Verifies that the actual group contains all the elements of given `Iterable`, in any order.
`SELF`	`containsAnyElementsOf(Iterable<ELEMENT> iterable)` Verifies that the `Iterable` under test contains at least one of the given `Iterable` elements.
`SELF`	`containsAnyOf(ELEMENT... values)` Verifies that the actual `Iterable` contains at least one of the given values.
`SELF`	`containsExactly(ELEMENT... values)` Verifies that the actual group contains exactly the given values and nothing else, in order. This assertion should only be used with groups that have a consistent iteration order (i.e.
`SELF`	`containsExactlyElementsOf(Iterable<? extends ELEMENT> iterable)` Same as `ObjectEnumerableAssert.containsExactly(Object...)` but handle the `Iterable` to array conversion : verifies that actual contains exactly the elements of the given iterable and nothing else in the same order.
`SELF`	`containsExactlyInAnyOrder(ELEMENT... values)` Verifies that the actual group contains exactly the given values and nothing else, in any order.
`SELF`	`containsExactlyInAnyOrderElementsOf(Iterable<? extends ELEMENT> values)` Verifies that the actual group contains exactly the given values and nothing else, in any order.
`SELF`	`containsNull()` Verifies that the actual group contains at least a null element.
`SELF`	`containsOnly(ELEMENT... values)` Verifies that the actual group contains only the given values and nothing else, in any order and ignoring duplicates (i.e.
`SELF`	`containsOnlyElementsOf(Iterable<? extends ELEMENT> iterable)` Same semantic as `ObjectEnumerableAssert.containsOnly(Object[])` : verifies that actual contains all the elements of the given iterable and nothing else, in any order and ignoring duplicates (i.e.
`SELF`	`containsOnlyNulls()` Verifies that the actual group contains only null elements and nothing else.
`SELF`	`containsOnlyOnce(ELEMENT... values)` Verifies that the actual group contains the given values only once.
`SELF`	`containsSequence(ELEMENT... sequence)` Verifies that the actual group contains the given sequence in the correct order and without extra values between the sequence values.
`SELF`	`containsSequence(Iterable<? extends ELEMENT> sequence)` Verifies that the actual group contains the given sequence in the correct order and without extra values between the sequence values.
`SELF`	`containsSubsequence(ELEMENT... subsequence)` Verifies that the actual group contains the given subsequence in the correct order (possibly with other values between them).
`SELF`	`containsSubsequence(Iterable<? extends ELEMENT> subsequence)` Verifies that the actual group contains the given subsequence in the correct order (possibly with other values between them).
`SELF`	`describedAs(Description description)` Sets the description of the assertion that is going to be called after.
`SELF`	`describedAs(String description, Object... args)` Sets the description of the assertion that is going to be called after.
`SELF`	`doesNotContain(ELEMENT... values)` Verifies that the actual group does not contain the given values.
`SELF`	`doesNotContainAnyElementsOf(Iterable<? extends ELEMENT> iterable)` Verifies that actual does not contain any elements of the given `Iterable` (i.e.
`SELF`	`doesNotContainNull()` Verifies that the actual group does not contain null elements.
`SELF`	`doesNotContainSequence(ELEMENT... sequence)` Verifies that the actual group does not contain the given sequence, a sequence is defined by an ordered group of values without extra values between them.
`SELF`	`doesNotContainSequence(Iterable<? extends ELEMENT> sequence)` Verifies that the actual group does not contain the given sequence, a sequence is defined by an ordered group of values without extra values between them.
`SELF`	`doesNotContainSubsequence(ELEMENT... subsequence)` Verifies that the actual group does not contain the given subsequence, a subsequence is defined by an ordered group of values with possibly extra values between them.
`SELF`	`doesNotContainSubsequence(Iterable<? extends ELEMENT> subsequence)` Verifies that the actual group does not contain the given subsequence, a subsequence is defined by an ordered group of values with possibly extra values between them.
`SELF`	`doesNotHave(Condition<? super ACTUAL> condition)` Verifies that the actual value does not satisfy the given condition.
`SELF`	`doesNotHaveAnyElementsOfTypes(Class<?>... unexpectedTypes)` Verifies that all elements in the actual `Iterable` do not have the specified types (including subclasses).
`SELF`	`doesNotHaveDuplicates()` Verifies that the actual group does not contain duplicates.
`SELF`	`doesNotHaveSameClassAs(Object other)` Verifies that the actual value does not have the same class as the given object.
`SELF`	`doNotHave(Condition<? super ELEMENT> condition)` Verifies that all elements do not satisfy the given condition.
`ELEMENT_ASSERT`	`element(int index)` Navigate and allow to perform assertions on the chosen element of the `Iterable` under test.
`SELF`	`endsWith(ELEMENT[] sequence)` Verifies that the actual group ends with the given sequence of objects, without any other objects between them.
`SELF`	`endsWith(ELEMENT first, ELEMENT... rest)` Verifies that the actual group ends with the given sequence of objects, without any other objects between them.
`<V> AbstractListAssert<?,List<? extends V>,V,ObjectAssert<V>>`	`extracting(Extractor<? super ELEMENT,V> extractor)` Extract the values from Iterable's elements under test by applying an extracting function on them.
`AbstractListAssert<?,List<? extends Tuple>,Tuple,ObjectAssert<Tuple>>`	`extracting(String... propertiesOrFields)` Extract the values of the given fields/properties from the Iterable's elements under test into a new Iterable composed of Tuples (a simple data structure), this new Iterable becoming the Iterable under test.
`AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>>`	`extracting(String propertyOrField)` Extract the values of the given field or property from the Iterable's elements under test into a new Iterable, this new Iterable becoming the Iterable under test.
`<P> AbstractListAssert<?,List<? extends P>,P,ObjectAssert<P>>`	`extracting(String propertyOrField, Class<P> extractingType)` Extract the values of given field or property from the Iterable's elements under test into a new Iterable, this new Iterable becoming the Iterable under test.
`AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>>`	`extractingResultOf(String method)` Extract the result of given method invocation on the Iterable's elements under test into a new Iterable, this new Iterable becoming the Iterable under test.
`<P> AbstractListAssert<?,List<? extends P>,P,ObjectAssert<P>>`	`extractingResultOf(String method, Class<P> extractedType)` Extract the result of given method invocation on the Iterable's elements under test into a new list of the given class, this new List becoming the object under test.
`AbstractListAssert<?,List<? extends ELEMENT>,ELEMENT,ObjectAssert<ELEMENT>>`	`filteredOn(Condition<? super ELEMENT> condition)` Filter the iterable under test keeping only elements matching the given `Condition`.
`AbstractListAssert<?,List<? extends ELEMENT>,ELEMENT,ObjectAssert<ELEMENT>>`	`filteredOn(String propertyOrFieldName, FilterOperator<?> filterOperator)` Filter the iterable under test keeping only elements having a property or field matching the filter expressed with the `FilterOperator`, the property/field is specified by `propertyOrFieldName` parameter.
`AbstractListAssert<?,List<? extends ELEMENT>,ELEMENT,ObjectAssert<ELEMENT>>`	`filteredOn(String propertyOrFieldName, Object expectedValue)` Filter the iterable under test keeping only elements having a property or field equal to `expectedValue`, the property/field is specified by `propertyOrFieldName` parameter.
`AbstractListAssert<?,List<? extends ELEMENT>,ELEMENT,ObjectAssert<ELEMENT>>`	`filteredOnNull(String propertyOrFieldName)` Filter the iterable under test keeping only elements whose property or field specified by `propertyOrFieldName` is null.
`ELEMENT_ASSERT`	`first()` Navigate and allow to perform assertions on the first element of the `Iterable` under test.
`<V> AbstractListAssert<?,List<? extends V>,V,ObjectAssert<V>>`	`flatExtracting(Extractor<? super ELEMENT,? extends Collection<V>> extractor)` Extract the Iterable values from Iterable's elements under test by applying an Iterable extracting function on them and concatenating the result lists.
`AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>>`	`flatExtracting(String... fieldOrPropertyNames)` Extract the given properties/fields values from each `Iterable`'s element and flatten the extracted values in a list that is used as the new object under test.
`AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>>`	`flatExtracting(String fieldOrPropertyName)` Extract from Iterable's elements the Iterable/Array values corresponding to the given property/field name and concatenate them into a single list becoming the new object under test.
`SELF`	`has(Condition<? super ACTUAL> condition)` Verifies that the actual value satisfies the given condition.
`SELF`	`hasAtLeastOneElementOfType(Class<?> expectedType)` Verifies that at least one element in the actual `Iterable` has the specified type (matching includes subclasses of the given type).
`SELF`	`hasOnlyElementsOfType(Class<?> expectedType)` Verifies that all elements in the actual `Iterable` have the specified type (matching includes subclasses of the given type).
`SELF`	`hasOnlyElementsOfTypes(Class<?>... types)` Verifies that all elements of the actual group are instances of the given types.
`SELF`	`hasSameClassAs(Object other)` Verifies that the actual value has the same class as the given object.
`SELF`	`hasSameElementsAs(Iterable<? extends ELEMENT> iterable)` An alias of `ObjectEnumerableAssert.containsOnlyElementsOf(Iterable)` : verifies that actual contains all the elements of the given iterable and nothing else, in any order.
`SELF`	`hasSameSizeAs(Iterable<?> other)` Verifies that the actual group has the same size as given `Iterable`.
`SELF`	`hasSameSizeAs(Object other)` Verifies that the actual group has the same size as given array.
`SELF`	`hasSize(int expected)` Verifies that the number of values in the actual group is equal to the given one.
`SELF`	`hasToString(String expectedToString)` Verifies that actual `actual.toString()` is equal to the given `String`.
`SELF`	`have(Condition<? super ELEMENT> condition)` Verifies that all elements satisfy the given condition.
`SELF`	`haveAtLeast(int times, Condition<? super ELEMENT> condition)` Verifies that there are at least n elements in the actual group satisfying the given condition.
`SELF`	`haveAtLeastOne(Condition<? super ELEMENT> condition)` Verifies that there is at least one element in the actual group satisfying the given condition.
`SELF`	`haveAtMost(int times, Condition<? super ELEMENT> condition)` Verifies that there are at most n elements in the actual group satisfying the given condition.
`SELF`	`haveExactly(int times, Condition<? super ELEMENT> condition)` Verifies that there are exactly n elements in the actual group satisfying the given condition.
`SELF`	`inBinary()` Enable binary representation of Iterable elements instead of standard representation in error messages.
`SELF`	`inHexadecimal()` Enable hexadecimal representation of Iterable elements instead of standard representation in error messages.
`SELF`	`is(Condition<? super ACTUAL> condition)` Verifies that the actual value satisfies the given condition.
`void`	`isEmpty()` Verifies that the actual group of values is empty.
`SELF`	`isEqualTo(Object expected)` Verifies that the actual value is equal to the given one.
`SELF`	`isExactlyInstanceOf(Class<?> type)` Verifies that the actual value is exactly an instance of the given type.
`SELF`	`isIn(Iterable<?> values)` Verifies that the actual value is present in the given values.
`SELF`	`isIn(Object... values)` Verifies that the actual value is present in the given array of values.
`SELF`	`isInstanceOf(Class<?> type)` Verifies that the actual value is an instance of the given type.
`SELF`	`isInstanceOfAny(Class<?>... types)` Verifies that the actual value is an instance of any of the given types.
`SELF`	`isNot(Condition<? super ACTUAL> condition)` Verifies that the actual value does not satisfy the given condition.
`SELF`	`isNotEmpty()` Verifies that the actual group of values is not empty.
`SELF`	`isNotEqualTo(Object other)` Verifies that the actual value is not equal to the given one.
`SELF`	`isNotExactlyInstanceOf(Class<?> type)` Verifies that the actual value is not exactly an instance of given type.
`SELF`	`isNotIn(Iterable<?> values)` Verifies that the actual value is not present in the given values.
`SELF`	`isNotIn(Object... values)` Verifies that the actual value is not present in the given array of values.
`SELF`	`isNotInstanceOf(Class<?> type)` Verifies that the actual value is not an instance of the given type.
`SELF`	`isNotInstanceOfAny(Class<?>... types)` Verifies that the actual value is not an instance of any of the given types.
`SELF`	`isNotNull()` Verifies that the actual value is not `null`.
`SELF`	`isNotOfAnyClassIn(Class<?>... types)` Verifies that the actual value type is not in given types.
`SELF`	`isNotSameAs(Object other)` Verifies that the actual value is not the same as the given one, ie using == comparison.
`void`	`isNullOrEmpty()` Verifies that the actual group of values is `null` or empty.
`SELF`	`isOfAnyClassIn(Class<?>... types)` Verifies that the actual value type is in given types.
`SELF`	`isSameAs(Object expected)` Verifies that the actual value is the same as the given one, ie using == comparison.
`SELF`	`isSubsetOf(ELEMENT... values)` Verifies that all the elements of actual are present in the given values.
`SELF`	`isSubsetOf(Iterable<? extends ELEMENT> values)` Verifies that all the elements of actual are present in the given `Iterable`.
`ELEMENT_ASSERT`	`last()` Navigate and allow to perform assertions on the first element of the `Iterable` under test.
`protected String`	`navigationDescription(String propertyName)`
`protected <E> AbstractListAssert<?,List<? extends E>,E,ObjectAssert<E>>`	`newListAssertInstance(List<? extends E> newActual)` Create a friendly soft or "hard" assertion.
`SELF`	`overridingErrorMessage(String newErrorMessage, Object... args)` Overrides AssertJ default error message by the given one.
`AbstractIterableSizeAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>`	`size()` Returns an `Assert` object that allows performing assertions on the size of the `Iterable` under test.
`SELF`	`startsWith(ELEMENT... sequence)` Verifies that the actual group starts with the given sequence of objects, without any other objects between them.
`protected abstract ELEMENT_ASSERT`	`toAssert(ELEMENT value, String description)`
`protected static <T> Iterable<T>`	`toLazyIterable(Iterator<T> actual)`
`SELF`	`usingComparator(Comparator<? super ACTUAL> customComparator)` Use given custom comparator instead of relying on actual type A equals method for incoming assertion checks.
`<T> SELF`	`usingComparatorForElementFieldsWithNames(Comparator<T> comparator, String... elementPropertyOrFieldNames)` Allows to set a comparator to compare properties or fields of elements with the given names.
`<T> SELF`	`usingComparatorForElementFieldsWithType(Comparator<T> comparator, Class<T> type)` Allows to set a specific comparator to compare properties or fields of elements with the given type.
`<T> SELF`	`usingComparatorForType(Comparator<T> comparator, Class<T> type)` Allows to set a specific comparator for the given type of elements or their fields.
`protected SELF`	`usingComparisonStrategy(ComparisonStrategy comparisonStrategy)`
`SELF`	`usingDefaultComparator()` Revert to standard comparison for incoming assertion checks.
`SELF`	`usingDefaultElementComparator()` Revert to standard comparison for incoming assertion group element checks.
`SELF`	`usingElementComparator(Comparator<? super ELEMENT> elementComparator)` Use given custom comparator instead of relying on actual type A `equals` method to compare group elements for incoming assertion checks.
`SELF`	`usingElementComparatorIgnoringFields(String... fields)` Use field/property by field/property comparison on all fields/properties except the given ones (including inherited fields/properties) instead of relying on actual type A `equals` method to compare group elements for incoming assertion checks.
`SELF`	`usingElementComparatorOnFields(String... fields)` Use field/property by field/property comparison on the given fields/properties only (including inherited fields/properties) instead of relying on actual type A `equals` method to compare group elements for incoming assertion checks.
`SELF`	`usingFieldByFieldElementComparator()` Use field/property by field/property comparison (including inherited fields/properties) instead of relying on actual type A `equals` method to compare group elements for incoming assertion checks.
`SELF`	`usingRecursiveFieldByFieldElementComparator()` Use a recursive field/property by field/property comparison (including inherited fields/properties) instead of relying on actual type `equals` method to compare group elements for incoming assertion checks.
`SELF`	`withFailMessage(String newErrorMessage, Object... args)` Alternative method for `AbstractAssert.overridingErrorMessage(java.lang.String, java.lang.Object...)`
`SELF`	`withThreadDumpOnError()` In case of an assertion error, a thread dump will be printed to `System.err`.

Methods inherited from class org.assertj.core.api.AbstractAssert
asList, asString, descriptionText, equals, failWithMessage, getWritableAssertionInfo, hashCode, hasSameHashCodeAs, isNull, setCustomRepresentation, throwAssertionError, withRepresentation

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
 - iterables
```
protected Iterables iterables
```
- Constructor Detail
 - AbstractIterableAssert
```
public AbstractIterableAssert(ACTUAL actual,
 Class<?> selfType)
```
- Method Detail
 - toLazyIterable
```
protected static <T> Iterable<T> toLazyIterable(Iterator<T> actual)
```
 - newListAssertInstance
```
protected <E> AbstractListAssert<?,List<? extends E>,E,ObjectAssert<E>> newListAssertInstance(List<? extends E> newActual)
```
 Create a friendly soft or "hard" assertion.
 Implementations need to redefine it so that some methods, such as extracting(Extractor), are able to build the appropriate list assert (eg: ListAssert versus SoftAssertionListAssert).
 The default implementation will assume that this concrete implementation is NOT a soft assertion.
 
 Parameters:
 newActual - new value
 
 Returns:
 a new AbstractListAssert.
 - isNullOrEmpty
```
public void isNullOrEmpty()
```
 Verifies that the actual group of values is null or empty.
 Example:
```
 // assertions will pass
 List<String> strings = new ArrayList<>();
 assertThat(strings).isNullOrEmpty();
 assertThat(new int[] { }).isNullOrEmpty();
 
 // assertions will fail
 assertThat(new String[] { "a", "b"}).isNullOrEmpty();
 assertThat(Arrays.asList(1, 2, 3)).isNullOrEmpty();
```
 Specified by:
 
 isNullOrEmpty in interface EnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 - isEmpty
```
public void isEmpty()
```
 Verifies that the actual group of values is empty.
 Example:
```
 // assertions will pass
 assertThat(new ArrayList()).isEmpty();
 assertThat(new int[] { }).isEmpty();
 
 // assertions will fail
 assertThat(new String[] { "a", "b" }).isEmpty();
 assertThat(Arrays.asList(1, 2, 3)).isEmpty();
```
 Specified by:
 
 isEmpty in interface EnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 - isNotEmpty
```
public SELF isNotEmpty()
```
 Verifies that the actual group of values is not empty.
 Example:
```
 // assertions will pass
 assertThat(new String[] { "a", "b" }).isNotEmpty();
 assertThat(Arrays.asList(1, 2, 3)).isNotEmpty();
 
 // assertions will fail
 assertThat(new ArrayList()).isNotEmpty();
 assertThat(new int[] { }).isNotEmpty();
```
 Specified by:
 
 isNotEmpty in interface EnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Returns:
 this assertion object.
 - hasSize
```
public SELF hasSize(int expected)
```
 Verifies that the number of values in the actual group is equal to the given one.
 Example:
```
 // assertions will pass
 assertThat(new String[] { "a", "b" }).hasSize(2);
 assertThat(Arrays.asList(1, 2, 3)).hasSize(3);
 
 // assertions will fail
 assertThat(new ArrayList()).hasSize(1);
 assertThat(new int[] { 1, 2, 3 }).hasSize(2);
```
 Specified by:
 
 hasSize in interface EnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 expected - the expected number of values in the actual group.
 
 Returns:
 this assertion object.
 - hasSameSizeAs
```
public SELF hasSameSizeAs(Object other)
```
 Verifies that the actual group has the same size as given array.
 Parameter is declared as Object to accept both Object[] and primitive arrays (e.g. int[]).
 Example:
```
 int[] oneTwoThree = {1, 2, 3};
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya); 
 
 // assertion will pass
 assertThat(elvesRings).hasSameSizeAs(oneTwoThree);
 
 // assertions will fail
 assertThat(elvesRings).hasSameSizeAs(new int[] { 1, 2});
 assertThat(elvesRings).hasSameSizeAs(new int[] { 1, 2, 3, 4});
```
 Specified by:
 
 hasSameSizeAs in interface EnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 other - the array to compare size with actual group.
 
 Returns:
 this assertion object.
 - hasSameSizeAs
```
public SELF hasSameSizeAs(Iterable<?> other)
```
 Verifies that the actual group has the same size as given Iterable.
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya); 
 
 // assertion will pass
 assertThat(elvesRings).hasSameSizeAs(abc);
 
 // assertions will fail
 assertThat(elvesRings).hasSameSizeAs(Arrays.asList(1, 2));
 assertThat(elvesRings).hasSameSizeAs(Arrays.asList(1, 2, 3, 4));
```
 Specified by:
 
 hasSameSizeAs in interface EnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 other - the Iterable to compare size with actual group.
 
 Returns:
 this assertion object.
 - contains
```
public SELF contains(ELEMENT... values)
```
 Verifies that the actual group contains the given values, in any order.
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");
 
 // assertions will pass
 assertThat(abc).contains("b", "a");
 assertThat(abc).contains("b", "a", "b");
 
 // assertion will fail
 assertThat(abc).contains("d");
```
 If you want to specify the elements to check with an Iterable, use containsAll(Iterable) instead.
 Specified by:
 
 contains in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the given values.
 
 Returns:
 this assertion object.
 - containsOnly
```
public SELF containsOnly(ELEMENT... values)
```
 Verifies that the actual group contains only the given values and nothing else, in any order and ignoring duplicates (i.e. once a value is found, its duplicates are also considered found).
 If you need to check exactly the elements and their duplicates use:
 - containsExactly(Object...) if the order does matter
 - containsExactlyInAnyOrder(Object...) if the order does not matter
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");

 // assertions will pass as order does not matter
 assertThat(abc).containsOnly("c", "b", "a");
 // duplicates are ignored 
 assertThat(abc).containsOnly("a", "a", "b", "c", "c");
 // ... on both actual and expected values 
 assertThat(asList("a", "a", "b")).containsOnly("a", "b")
 .containsOnly("a", "a", "b", "b");
 
 // assertion will fail because "c" is missing in the given values
 assertThat(abc).containsOnly("a", "b");
 // assertion will fail because "d" is missing in abc (use isSubsetOf if you want this assertion to pass)
 assertThat(abc).containsOnly("a", "b", "c", "d");
```
 If you need to check that actual is a subset of the given values, use ObjectEnumerableAssert.isSubsetOf(Object...).
 If you want to specify the elements to check with an Iterable, use containsOnlyElementsOf(Iterable) instead.
 Specified by:
 
 containsOnly in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the given values.
 
 Returns:
 this assertion object.
 - containsOnlyOnce
```
public SELF containsOnlyOnce(ELEMENT... values)
```
 Verifies that the actual group contains the given values only once.
 Examples :
```
 // lists are used in the examples but it would also work with arrays
 
 // assertions will pass
 assertThat(newArrayList("winter", "is", "coming")).containsOnlyOnce("winter");
 assertThat(newArrayList("winter", "is", "coming")).containsOnlyOnce("coming", "winter");
 
 // assertions will fail
 assertThat(newArrayList("winter", "is", "coming")).containsOnlyOnce("Lannister");
 assertThat(newArrayList("Arya", "Stark", "daughter", "of", "Ned", "Stark")).containsOnlyOnce("Stark");
 assertThat(newArrayList("Arya", "Stark", "daughter", "of", "Ned", "Stark")).containsOnlyOnce("Stark", "Lannister", "Arya");
```
 Specified by:
 
 containsOnlyOnce in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the given values.
 
 Returns:
 this assertion object.
 - containsOnlyNulls
```
public SELF containsOnlyNulls()
```
 Verifies that the actual group contains only null elements and nothing else.
 Example:
```
 // assertion will pass
 Iterable<String> items = Arrays.asList(null, null, null);
 assertThat(items).containsOnlyNulls();

 // assertion will fail because items2 contains a not null element
 Iterable<String> items2 = Arrays.asList(null, null, "notNull");
 assertThat(items2).containsOnlyNulls();
 
 // assertion will fail since an empty iterable does not contain any elements and therefore no null ones.
 Iterable<String> empty = new ArrayList<>();
 assertThat(empty).containsOnlyNulls();
```
 Specified by:
 
 containsOnlyNulls in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Returns:
 this assertion object.
 - containsExactly
```
public SELF containsExactly(ELEMENT... values)
```
 Verifies that the actual group contains exactly the given values and nothing else, in order.
 This assertion should only be used with groups that have a consistent iteration order (i.e. don't use it with HashSet, prefer ObjectEnumerableAssert.containsOnly(Object...) in that case).
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertion will pass
 assertThat(elvesRings).containsExactly(vilya, nenya, narya);
 
 // assertion will fail as actual and expected order differ
 assertThat(elvesRings).containsExactly(nenya, vilya, narya);
```
 If you want to specify the elements to check with an Iterable, use containsExactlyElementsOf(Iterable) instead.
 Specified by:
 
 containsExactly in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the given values.
 
 Returns:
 this assertion object.
 - containsExactlyInAnyOrder
```
public SELF containsExactlyInAnyOrder(ELEMENT... values)
```
 Verifies that the actual group contains exactly the given values and nothing else, in any order.
 
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya, vilya);

 // assertion will pass
 assertThat(elvesRings).containsExactlyInAnyOrder(vilya, vilya, nenya, narya);

 // assertion will fail as vilya is contained twice in elvesRings.
 assertThat(elvesRings).containsExactlyInAnyOrder(nenya, vilya, narya);
```
 If you want to specify the elements to check with an Iterable, use containsExactlyInAnyOrderElementsOf(Iterable) instead.
 Specified by:
 
 containsExactlyInAnyOrder in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the given values.
 
 Returns:
 this assertion object.
 - containsExactlyInAnyOrderElementsOf
```
public SELF containsExactlyInAnyOrderElementsOf(Iterable<? extends ELEMENT> values)
```
 Verifies that the actual group contains exactly the given values and nothing else, in any order.
 
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya, vilya);
 Iterable<Ring> elvesRingsSomeMissing = newArrayList(vilya, nenya, narya);
 Iterable<Ring> elvesRingsDifferentOrder = newArrayList(nenya, narya, vilya, vilya);

 // assertion will pass
 assertThat(elvesRings).containsExactlyInAnyOrder(elvesRingsDifferentOrder);

 // assertion will fail as vilya is contained twice in elvesRings.
 assertThat(elvesRings).containsExactlyInAnyOrder(elvesRingsSomeMissing);
```
 If you want to directly specify the elements to check, use containsExactlyInAnyOrder(Object...) instead.
 Specified by:
 
 containsExactlyInAnyOrderElementsOf in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the given values.
 
 Returns:
 this assertion object.
 - isSubsetOf
```
public SELF isSubsetOf(Iterable<? extends ELEMENT> values)
```
 Verifies that all the elements of actual are present in the given Iterable.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 List<Ring> ringsOfPower = newArrayList(oneRing, vilya, nenya, narya, dwarfRing, manRing);
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertion will pass:
 assertThat(elvesRings).isSubsetOf(ringsOfPower);
 
 // assertion will fail:
 assertThat(elvesRings).isSubsetOf(newArrayList(nenya, narya));
```
 If you want to directly specify the set of elements, use isSubsetOf(Object...) instead.
 Specified by:
 
 isSubsetOf in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the Iterable that should contain all actual elements.
 
 Returns:
 this assertion object.
 - isSubsetOf
```
public SELF isSubsetOf(ELEMENT... values)
```
 Verifies that all the elements of actual are present in the given values.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertions will pass:
 assertThat(elvesRings).isSubsetOf(vilya, nenya, narya)
 .isSubsetOf(vilya, nenya, narya, dwarfRing);
 
 // assertions will fail:
 assertThat(elvesRings).isSubsetOf(vilya, nenya);
 assertThat(elvesRings).isSubsetOf(vilya, nenya, dwarfRing);
```
 If you want to specify the set of elements an Iterable, use isSubsetOf(Iterable) instead.
 Specified by:
 
 isSubsetOf in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the values that should be used for checking the elements of actual.
 
 Returns:
 this assertion object.
 - containsSequence
```
public SELF containsSequence(ELEMENT... sequence)
```
 Verifies that the actual group contains the given sequence in the correct order and without extra values between the sequence values.
 Use ObjectEnumerableAssert.containsSubsequence(Object...) to allow values between the expected sequence values.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertions will pass
 assertThat(elvesRings).containsSequence(vilya, nenya)
 .containsSequence(nenya, narya);
 
 // assertions will fail, the elements order is correct but there is a value between them (nenya) 
 assertThat(elvesRings).containsSequence(vilya, narya); 
 assertThat(elvesRings).containsSequence(nenya, vilya);
```
 If you want to specify the sequence to check with an Iterable, use containsSequence(Iterable) instead.
 Specified by:
 
 containsSequence in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 sequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - containsSequence
```
public SELF containsSequence(Iterable<? extends ELEMENT> sequence)
```
 Verifies that the actual group contains the given sequence in the correct order and without extra values between the sequence values.
 Use ObjectEnumerableAssert.containsSubsequence(Iterable) to allow values between the expected sequence values.
 Example:
```
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);

 // assertions will pass
 assertThat(elvesRings).containsSequence(newArrayList(vilya, nenya))
 .containsSequence(newArrayList(nenya, narya));

 // assertions will fail, the elements order is correct but there is a value between them (nenya)
 assertThat(elvesRings).containsSequence(newArrayList(vilya, narya));
 assertThat(elvesRings).containsSequence(newArrayList(nenya, vilya));
```
 If you want to directly specify the elements of the sequence to check, use containsSequence(Object...) instead.
 Specified by:
 
 containsSequence in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 sequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - doesNotContainSequence
```
public SELF doesNotContainSequence(ELEMENT... sequence)
```
 Verifies that the actual group does not contain the given sequence, a sequence is defined by an ordered group of values without extra values between them.
 Use ObjectEnumerableAssert.doesNotContainSubsequence(Object...) to also ensure the sequence does not exist with values between the expected sequence values.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);

 // assertions will pass, the elements order is correct but there is a value between them (nenya)
 assertThat(elvesRings).doesNotContainSequence(vilya, narya)
 .doesNotContainSequence(nenya, vilya);

 // assertions will fail
 assertThat(elvesRings).doesNotContainSequence(vilya, nenya);
 assertThat(elvesRings).doesNotContainSequence(nenya, narya);
```
 If you want to specify the sequence not to find with an Iterable, use doesNotContainSequence(Iterable) instead.
 Specified by:
 
 doesNotContainSequence in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 sequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - doesNotContainSequence
```
public SELF doesNotContainSequence(Iterable<? extends ELEMENT> sequence)
```
 Verifies that the actual group does not contain the given sequence, a sequence is defined by an ordered group of values without extra values between them.
 Use ObjectEnumerableAssert.doesNotContainSubsequence(Iterable) to also ensure the sequence does not exist with values between the sequence values.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);

 // assertions will pass, the elements order is correct but there is a value between them (nenya)
 assertThat(elvesRings).doesNotContainSequence(newArrayList(vilya, narya))
 .doesNotContainSequence(newArrayList(nenya, vilya));

 // assertions will fail
 assertThat(elvesRings).doesNotContainSequence(newArrayList(vilya, nenya));
 assertThat(elvesRings).doesNotContainSequence(newArrayList(nenya, narya));
```
 If you want to directly specify the elements of the sequence not to find, use doesNotContainSequence(Object...) instead.
 Specified by:
 
 doesNotContainSequence in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 sequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - containsSubsequence
```
public SELF containsSubsequence(ELEMENT... subsequence)
```
 Verifies that the actual group contains the given subsequence in the correct order (possibly with other values between them).
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertions will pass
 assertThat(elvesRings).containsSubsequence(vilya, nenya)
 .containsSubsequence(vilya, narya);
 
 // assertion will fail
 assertThat(elvesRings).containsSubsequence(nenya, vilya);
```
 If you want to specify the elements of the subsequence to check with an Iterable, use containsSubsequence(Iterable) instead.
 Specified by:
 
 containsSubsequence in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 subsequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - containsSubsequence
```
public SELF containsSubsequence(Iterable<? extends ELEMENT> subsequence)
```
 Verifies that the actual group contains the given subsequence in the correct order (possibly with other values between them).
 Example:
```
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);

 // assertions will pass
 assertThat(elvesRings).containsSubsequence(newArrayList(vilya, nenya))
 .containsSubsequence(newArrayList(vilya, narya));

 // assertion will fail
 assertThat(elvesRings).containsSubsequence(newArrayList(nenya, vilya));
```
 If you want to directly specify the subsequence to check, use containsSubsequence(Object...) instead.
 Specified by:
 
 containsSubsequence in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 subsequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - doesNotContainSubsequence
```
public SELF doesNotContainSubsequence(ELEMENT... subsequence)
```
 Verifies that the actual group does not contain the given subsequence, a subsequence is defined by an ordered group of values with possibly extra values between them.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);

 // assertions will pass
 assertThat(elvesRings).doesNotContainSubsequence(nenya, vilya)
 .doesNotContainSubsequence(narya, vilya);

 // assertion will fail
 assertThat(elvesRings).doesNotContainSubsequence(vilya, nenya);
 assertThat(elvesRings).doesNotContainSubsequence(vilya, narya);
```
 If you want to specify the subsequence not to find with an Iterable, use doesNotContainSubsequence(Iterable) instead.
 Specified by:
 
 doesNotContainSubsequence in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 subsequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - doesNotContainSubsequence
```
public SELF doesNotContainSubsequence(Iterable<? extends ELEMENT> subsequence)
```
 Verifies that the actual group does not contain the given subsequence, a subsequence is defined by an ordered group of values with possibly extra values between them.
 Example:
```
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);

 // assertions will pass
 assertThat(elvesRings).doesNotContainSubsequence(newArrayList(nenya, vilya));
 .doesNotContainSubsequence(newArrayList(narya, vilya));

 // assertion will fail
 assertThat(elvesRings).doesNotContainSubsequence(newArrayList(vilya, nenya));
 assertThat(elvesRings).doesNotContainSubsequence(newArrayList(vilya, narya));
```
 If you want to directly specify the elements of the subsequence not to find, use doesNotContainSubsequence(Object...) instead.
 Specified by:
 
 doesNotContainSubsequence in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 subsequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - doesNotContain
```
public SELF doesNotContain(ELEMENT... values)
```
 Description copied from interface: ObjectEnumerableAssert
 Verifies that the actual group does not contain the given values.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<String> abc = newArrayList("a", "b", "c");

 // assertions will pass
 assertThat(abc).doesNotContain("d")
 .doesNotContain("d", "e");
 
 // assertions will fail
 assertThat(abc).doesNotContain("a");
 assertThat(abc).doesNotContain("a", "b");
 assertThat(abc).doesNotContain("c", "d");
```
 If you want to specify the elements not to find with an Iterable, use doesNotContainAnyElementsOf(Iterable) instead.
 Specified by:
 
 doesNotContain in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the given values.
 
 Returns:
 this assertion object.
 - doesNotContainAnyElementsOf
```
public SELF doesNotContainAnyElementsOf(Iterable<? extends ELEMENT> iterable)
```
 Description copied from interface: ObjectEnumerableAssert
 Verifies that actual does not contain any elements of the given Iterable (i.e. none).
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c"); 
 
 // assertion succeeds:
 assertThat(actual).doesNotContainAnyElementsOf(newArrayList("d", "e"));
 
 // assertion fails:
 assertThat(actual).doesNotContainAnyElementsOf(newArrayList("d", "e", "a"));
```
 If you want to directly specify the elements not to find, use doesNotContain(Object...) instead.
 Specified by:
 
 doesNotContainAnyElementsOf in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 iterable - the Iterable whose elements must not be in the actual group.
 
 Returns:
 this assertion object.
 - doesNotHaveDuplicates
```
public SELF doesNotHaveDuplicates()
```
 Verifies that the actual group does not contain duplicates.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<String> abc = newArrayList("a", "b", "c");
 Iterable<String> lotsOfAs = newArrayList("a", "a", "a");

 // assertion will pass
 assertThat(abc).doesNotHaveDuplicates();
 
 // assertion will fail
 assertThat(lotsOfAs).doesNotHaveDuplicates();
```
 Specified by:
 
 doesNotHaveDuplicates in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Returns:
 this assertion object.
 - startsWith
```
public SELF startsWith(ELEMENT... sequence)
```
 Verifies that the actual group starts with the given sequence of objects, without any other objects between them. Similar to ObjectEnumerableAssert.containsSequence(Object...), but it also verifies that the first element in the sequence is also first element of the actual group.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<String> abc = newArrayList("a", "b", "c");

 // assertions will pass
 assertThat(abc).startsWith("a")
 .startsWith("a", "b");
 
 // assertion will fail
 assertThat(abc).startsWith("c");
```
 Specified by:
 
 startsWith in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 sequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - endsWith
```
public SELF endsWith(ELEMENT first,
 ELEMENT... rest)
```
 Verifies that the actual group ends with the given sequence of objects, without any other objects between them. Similar to ObjectEnumerableAssert.containsSequence(Object...), but it also verifies that the last element in the sequence is also last element of the actual group.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<String> abc = newArrayList("a", "b", "c");

 // assertions will pass
 assertThat(abc).endsWith("c")
 .endsWith("b", "c");
 
 // assertions will fail
 assertThat(abc).endsWith("a");
 assertThat(abc).endsWith("a", "b");
```
 Specified by:
 
 endsWith in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 rest - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - endsWith
```
public SELF endsWith(ELEMENT[] sequence)
```
 Verifies that the actual group ends with the given sequence of objects, without any other objects between them. Similar to ObjectEnumerableAssert.containsSequence(Object...), but it also verifies that the last element in the sequence is also last element of the actual group.
 Example:
```
 // an Iterable is used in the example but it would also work with an array
 Iterable<String> abc = newArrayList("a", "b", "c");

 // assertions will pass
 assertThat(abc).endsWith(new String[0])
 .endsWith(new String[] {"c"})
 .endsWith(new String[] {"b", "c"});

 // assertions will fail
 assertThat(abc).endsWith(new String[] {"a"});
 assertThat(abc).endsWith(new String[] {"a", "b"});
```
 Specified by:
 
 endsWith in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 sequence - the sequence of objects to look for.
 
 Returns:
 this assertion object.
 - containsNull
```
public SELF containsNull()
```
 Verifies that the actual group contains at least a null element.
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");
 Iterable<String> abNull = newArrayList("a", "b", null);

 // assertion will pass
 assertThat(abNull).containsNull();
 
 // assertion will fail
 assertThat(abc).containsNull();
```
 Specified by:
 
 containsNull in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Returns:
 this assertion object.
 - doesNotContainNull
```
public SELF doesNotContainNull()
```
 Verifies that the actual group does not contain null elements.
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");
 Iterable<String> abNull = newArrayList("a", "b", null);

 // assertion will pass
 assertThat(abc).doesNotContainNull();

 // assertion will fail
 assertThat(abNull).doesNotContainNull();
```
 Specified by:
 
 doesNotContainNull in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Returns:
 this assertion object.
 - are
```
public SELF are(Condition<? super ELEMENT> condition)
```
 Verifies that each element value satisfies the given condition.
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");
 Iterable<String> abcc = newArrayList("a", "b", "cc");

 Condition<String> singleCharacterString = new Condition<String>() {
 public boolean matches(String value) {
 return value.length() == 1;
 }
 });

 // assertion will pass
 assertThat(abc).are(singleCharacterString);
 
 // assertion will fail
 assertThat(abcc).are(singleCharacterString);
```
 Specified by:
 
 are in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this object.
 - areNot
```
public SELF areNot(Condition<? super ELEMENT> condition)
```
 Verifies that each element value does not satisfy the given condition.
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");
 Iterable<String> abcc = newArrayList("a", "b", "cc");

 Condition<String> moreThanOneCharacter = new Condition<String>() {
 public boolean matches(String value) {
 return value.length() > 1;
 }
 });

 // assertion will pass
 assertThat(abc).areNot(moreThanOneCharacter);
 
 // assertion will fail
 assertThat(abcc).areNot(moreThanOneCharacter);
```
 Specified by:
 
 areNot in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this object.
 - have
```
public SELF have(Condition<? super ELEMENT> condition)
```
 Verifies that all elements satisfy the given condition.
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");
 Iterable<String> abcc = newArrayList("a", "b", "cc");

 Condition<String> onlyOneCharacter = new Condition<String>() {
 public boolean matches(String value) {
 return value.length() == 1;
 }
 });

 // assertion will pass
 assertThat(abc).have(onlyOneCharacter);
 
 // assertion will fail
 assertThat(abcc).have(onlyOneCharacter);
```
 Specified by:
 
 have in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this object.
 - doNotHave
```
public SELF doNotHave(Condition<? super ELEMENT> condition)
```
 Verifies that all elements do not satisfy the given condition.
 Example:
```
 Iterable<String> abc = newArrayList("a", "b", "c");
 Iterable<String> abcc = newArrayList("a", "b", "cc");

 Condition<String> moreThanOneCharacter = new Condition<String>() {
 public boolean matches(String value) {
 return value.length() > 1;
 }
 });

 // assertion will pass
 assertThat(abc).doNotHave(moreThanOneCharacter);
 
 // assertion will fail
 assertThat(abcc).doNotHave(moreThanOneCharacter);
```
 Specified by:
 
 doNotHave in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this object.
 - areAtLeastOne
```
public SELF areAtLeastOne(Condition<? super ELEMENT> condition)
```
 Verifies that there is at least one element in the actual group satisfying the given condition.
 This method is an alias for areAtLeast(1, condition).
 Example:
```
 // jedi is a Condition<String>
 assertThat(newLinkedHashSet("Luke", "Solo", "Leia")).areAtLeastOne(jedi);
```
 Specified by:
 
 areAtLeastOne in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this assertion object.
 See Also:
 ObjectEnumerableAssert.haveAtLeast(int, Condition)
 - areAtLeast
```
public SELF areAtLeast(int times,
 Condition<? super ELEMENT> condition)
```
 Verifies that there are at least n elements in the actual group satisfying the given condition.
 Example:
```
 Iterable<Integer> oneTwoThree = newArrayList(1, 2, 3);

 Condition<Integer> oddNumber = new Condition<Integer>() {
 public boolean matches(Integer value) {
 return value % 2 == 1;
 }
 });

 // assertion will pass
 oneTwoThree.areAtLeast(2, oddNumber);
 
 // assertion will fail
 oneTwoThree.areAtLeast(3, oddNumber);
```
 Specified by:
 
 areAtLeast in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 times - the minimum number of times the condition should be verified.
 condition - the given condition.
 
 Returns:
 this object.
 - areAtMost
```
public SELF areAtMost(int times,
 Condition<? super ELEMENT> condition)
```
 Verifies that there are at most n elements in the actual group satisfying the given condition.
 Example:
```
 Iterable<Integer> oneTwoThree = newArrayList(1, 2, 3);

 Condition<Integer> oddNumber = new Condition<Integer>() {
 public boolean matches(Integer value) {
 return value % 2 == 1;
 }
 });

 // assertions will pass
 oneTwoThree.areAtMost(2, oddNumber)
 .areAtMost(3, oddNumber);
 
 // assertion will fail
 oneTwoThree.areAtMost(1, odd);
```
 Specified by:
 
 areAtMost in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 times - the number of times the condition should be at most verified.
 condition - the given condition.
 
 Returns:
 this object.
 - areExactly
```
public SELF areExactly(int times,
 Condition<? super ELEMENT> condition)
```
 Verifies that there are exactly n elements in the actual group satisfying the given condition.
 Example:
```
 Iterable<Integer> oneTwoThree = newArrayList(1, 2, 3);

 Condition<Integer> odd = new Condition<Integer>() {
 public boolean matches(Integer value) {
 return value % 2 == 1;
 }
 });

 // assertion will pass
 oneTwoThree.areExactly(2, odd);
 
 // assertions will fail
 oneTwoThree.areExactly(1, odd);
 oneTwoThree.areExactly(3, odd);
```
 Specified by:
 
 areExactly in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 times - the exact number of times the condition should be verified.
 condition - the given condition.
 
 Returns:
 this object.
 - haveAtLeastOne
```
public SELF haveAtLeastOne(Condition<? super ELEMENT> condition)
```
 Verifies that there is at least one element in the actual group satisfying the given condition.
 This method is an alias for haveAtLeast(1, condition).
 Example:
```
 List<BasketBallPlayer> bullsPlayers = newArrayList(noah, rose);
 
 // potentialMvp is a Condition<BasketBallPlayer>
 assertThat(bullsPlayers).haveAtLeastOne(potentialMvp);
```
 Specified by:
 
 haveAtLeastOne in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this assertion object.
 See Also:
 ObjectEnumerableAssert.haveAtLeast(int, Condition)
 - haveAtLeast
```
public SELF haveAtLeast(int times,
 Condition<? super ELEMENT> condition)
```
 Verifies that there are at least n elements in the actual group satisfying the given condition.
 Example:
```
 Iterable<Integer> oneTwoThree = newArrayList(1, 2, 3);

 Condition<Integer> oddNumber = new Condition<Integer>() {
 public boolean matches(Integer value) {
 return value % 2 == 1;
 }
 });

 // assertion will pass
 oneTwoThree.haveAtLeast(2, oddNumber);
 
 // assertion will fail
 oneTwoThree.haveAtLeast(3, oddNumber);
```
 This method is an alias for ObjectEnumerableAssert.areAtLeast(int, Condition).
 Specified by:
 
 haveAtLeast in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 times - the minimum number of times the condition must hold.
 condition - the given condition.
 
 Returns:
 this assertion object.
 - haveAtMost
```
public SELF haveAtMost(int times,
 Condition<? super ELEMENT> condition)
```
 Verifies that there are at most n elements in the actual group satisfying the given condition.
 Example:
```
 Iterable<Integer> oneTwoThree = newArrayList(1, 2, 3);

 Condition<Integer> oddNumber = new Condition<Integer>() {
 public boolean matches(Integer value) {
 return value % 2 == 1;
 }
 });

 // assertions will pass
 oneTwoThree.haveAtMost(2, oddNumber);
 oneTwoThree.haveAtMost(3, oddNumber);
 
 // assertion will fail
 oneTwoThree.haveAtMost(1, odd);
```
 This method is an alias ObjectEnumerableAssert.areAtMost(int, Condition).
 Specified by:
 
 haveAtMost in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 times - the maximum number of times the condition must hold.
 condition - the given condition.
 
 Returns:
 this assertion object.
 - haveExactly
```
public SELF haveExactly(int times,
 Condition<? super ELEMENT> condition)
```
 Verifies that there are exactly n elements in the actual group satisfying the given condition.
 Example:
```
 Iterable<Integer> oneTwoThree = newArrayList(1, 2, 3);

 Condition<Integer> oddNumber = new Condition<Integer>() {
 public boolean matches(Integer value) {
 return value % 2 == 1;
 }
 });

 // assertion will pass
 oneTwoThree.haveExactly(2, oddNumber);
 
 // assertions will fail
 oneTwoThree.haveExactly(1, oddNumber);
 oneTwoThree.haveExactly(3, oddNumber);
```
 This method is an alias ObjectEnumerableAssert.areExactly(int, Condition).
 Specified by:
 
 haveExactly in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 times - the exact number of times the condition must hold.
 condition - the given condition.
 
 Returns:
 this assertion object.
 - hasAtLeastOneElementOfType
```
public SELF hasAtLeastOneElementOfType(Class<?> expectedType)
```
 Verifies that at least one element in the actual Iterable has the specified type (matching includes subclasses of the given type).
 Example:
```
 List<Number> numbers = new ArrayList<Number>();
 numbers.add(1);
 numbers.add(2L);

 // successful assertion:
 assertThat(numbers).hasAtLeastOneElementOfType(Long.class);

 // assertion failure:
 assertThat(numbers).hasAtLeastOneElementOfType(Float.class);
```
 Specified by:
 
 hasAtLeastOneElementOfType in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 expectedType - the expected type.
 
 Returns:
 this assertion object.
 
 Throws:
 
 NullPointerException - if the given type is null.
 
 AssertionError - if the actual Object group does not have any elements of the given type.
 - hasOnlyElementsOfType
```
public SELF hasOnlyElementsOfType(Class<?> expectedType)
```
 Verifies that all elements in the actual Iterable have the specified type (matching includes subclasses of the given type).
 Example:
```
 List<Number> numbers = new ArrayList<Number>();
 numbers.add(1);
 numbers.add(2);
 numbers.add(3);

 // successful assertions:
 assertThat(numbers).hasOnlyElementsOfType(Number.class);
 assertThat(numbers).hasOnlyElementsOfType(Integer.class);

 // assertion failure:
 assertThat(numbers).hasOnlyElementsOfType(Long.class);
```
 Specified by:
 
 hasOnlyElementsOfType in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 expectedType - the expected type.
 
 Returns:
 this assertion object.
 
 Throws:
 
 NullPointerException - if the given type is null.
 
 AssertionError - if one element is not of the expected type.
 - doesNotHaveAnyElementsOfTypes
```
public SELF doesNotHaveAnyElementsOfTypes(Class<?>... unexpectedTypes)
```
 Verifies that all elements in the actual Iterable do not have the specified types (including subclasses).
 Example:
```
 List<Number> numbers = new ArrayList<>();
 numbers.add(1);
 numbers.add(2);
 numbers.add(3.0);

 // successful assertions:
 assertThat(numbers).doesNotHaveAnyElementsOfTypes(Long.class, Float.class);

 // assertion failure:
 assertThat(numbers).doesNotHaveAnyElementsOfTypes(Long.class, Integer.class);
```
 Specified by:
 
 doesNotHaveAnyElementsOfTypes in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 unexpectedTypes - the not expected types.
 
 Returns:
 this assertion object.
 
 Throws:
 
 NullPointerException - if the given type is null.
 
 AssertionError - if one element's type matches the given types.
 Since:
 
 2.9.0 / 3.9.0
 - hasOnlyElementsOfTypes
```
public SELF hasOnlyElementsOfTypes(Class<?>... types)
```
 Verifies that all elements of the actual group are instances of the given types.
 Example:
```
 Iterable<? extends Object> objects = Arrays.asList("foo", new StringBuilder());
 
 // assertions will pass
 assertThat(objects).hasOnlyElementsOfTypes(CharSequence.class)
 .hasOnlyElementsOfTypes(String.class, StringBuilder.class);
 
 // assertions will fail
 assertThat(objects).hasOnlyElementsOfTypes(Number.class);
 assertThat(objects).hasOnlyElementsOfTypes(String.class, Number.class);
 assertThat(objects).hasOnlyElementsOfTypes(String.class);
```
 Specified by:
 
 hasOnlyElementsOfTypes in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 types - the expected classes and interfaces
 
 Returns:
 this assertion object.
 - containsAll
```
public SELF containsAll(Iterable<? extends ELEMENT> iterable)
```
 Verifies that the actual group contains all the elements of given Iterable, in any order.
 Example:
```
 Iterable<String> abc = Arrays.asList("a", "b", "c");
 
 // assertions will pass
 assertThat(abc).containsAll(Arrays.asList("b", "c"))
 .containsAll(Arrays.asList("a", "b", "c"));
 
 // assertions will fail
 assertThat(abc).containsAll(Arrays.asList("d"));
 assertThat(abc).containsAll(Arrays.asList("a", "b", "c", "d"));
```
 If you want to directly specify the elements to check, use contains(Object...) instead.
 Specified by:
 
 containsAll in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 iterable - the given Iterable we will get elements from.
 
 Returns:
 this assertion object.
 - usingElementComparator
```
public SELF usingElementComparator(Comparator<? super ELEMENT> elementComparator)
```
 Use given custom comparator instead of relying on actual type A equals method to compare group elements for incoming assertion checks.
 Custom comparator is bound to assertion instance, meaning that if a new assertion is created, it will use default comparison strategy.
 Examples :
```
 // compares invoices by payee
 assertThat(invoiceList).usingComparator(invoicePayeeComparator).isEqualTo(expectedInvoiceList);
 
 // compares invoices by date, doesNotHaveDuplicates and contains both use the given invoice date comparator
 assertThat(invoiceList).usingComparator(invoiceDateComparator).doesNotHaveDuplicates().contains(may2010Invoice);
 
 // as assertThat(invoiceList) creates a new assertion, it falls back to standard comparison strategy 
 // based on Invoice's equal method to compare invoiceList elements to lowestInvoice. 
 assertThat(invoiceList).contains(lowestInvoice);
 
 // standard comparison : the fellowshipOfTheRing includes Gandalf but not Sauron (believe me) ...
 assertThat(fellowshipOfTheRing).contains(gandalf)
 .doesNotContain(sauron);
 
 // ... but if we compare only races, Sauron is in fellowshipOfTheRing because he's a Maia like Gandalf.
 assertThat(fellowshipOfTheRing).usingElementComparator(raceComparator)
 .contains(sauron);
```
 Specified by:
 
 usingElementComparator in interface EnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 elementComparator - the comparator to use for incoming assertion checks.
 
 Returns:
 this assertion object.
 - usingDefaultElementComparator
```
public SELF usingDefaultElementComparator()
```
 Revert to standard comparison for incoming assertion group element checks.
 This method should be used to disable a custom comparison strategy set by calling EnumerableAssert.usingElementComparator(Comparator).
 
 Specified by:
 
 usingDefaultElementComparator in interface EnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Returns:
 this assertion object.
 - containsAnyOf
```
public SELF containsAnyOf(ELEMENT... values)
```
 Verifies that the actual Iterable contains at least one of the given values.
 Example :
```
 Iterable<String> abc = Arrays.asList("a", "b", "c");

 // assertions will pass
 assertThat(abc).containsAnyOf("b")
 .containsAnyOf("b", "c")
 .containsAnyOf("a", "b", "c")
 .containsAnyOf("a", "b", "c", "d")
 .containsAnyOf("e", "f", "g", "b");

 // assertions will fail
 assertThat(abc).containsAnyOf("d");
 assertThat(abc).containsAnyOf("d", "e", "f", "g");
```
 Specified by:
 
 containsAnyOf in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 values - the values whose at least one which is expected to be in the Iterable under test.
 
 Returns:
 this assertion object.
 
 Throws:
 
 NullPointerException - if the array of values is null.
 
 IllegalArgumentException - if the array of values is empty and the Iterable under test is not empty.
 
 AssertionError - if the Iterable under test is null.
 
 AssertionError - if the Iterable under test does not contain any of the given values.
 Since:
 
 2.9.0 / 3.9.0
 - containsAnyElementsOf
```
public SELF containsAnyElementsOf(Iterable<ELEMENT> iterable)
```
 Verifies that the Iterable under test contains at least one of the given Iterable elements.
 Example :
```
 Iterable<String> abc = Arrays.asList("a", "b", "c");

 // assertions will pass
 assertThat(abc).containsAnyElementsOf(Arrays.asList("b"))
 .containsAnyElementsOf(Arrays.asList("b", "c"))
 .containsAnyElementsOf(Arrays.asList("a", "b", "c"))
 .containsAnyElementsOf(Arrays.asList("a", "b", "c", "d"))
 .containsAnyElementsOf(Arrays.asList("e", "f", "g", "b"));

 // assertions will fail
 assertThat(abc).containsAnyElementsOf(Arrays.asList("d"));
 assertThat(abc).containsAnyElementsOf(Arrays.asList("d", "e", "f", "g"));
```
 Specified by:
 
 containsAnyElementsOf in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 iterable - the iterable whose at least one element is expected to be in the Iterable under test.
 
 Returns:
 this assertion object.
 
 Throws:
 
 NullPointerException - if the iterable of expected values is null.
 
 IllegalArgumentException - if the iterable of expected values is empty and the Iterable under test is not empty.
 
 AssertionError - if the Iterable under test is null.
 
 AssertionError - if the Iterable under test does not contain any of elements from the given Iterable.
 Since:
 
 2.9.0 / 3.9.0
 - extracting
```
public AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>> extracting(String propertyOrField)
```
 Extract the values of the given field or property from the Iterable's elements under test into a new Iterable, this new Iterable becoming the Iterable under test.
 It allows you to test a property/field of the the Iterable's elements instead of testing the elements themselves, which can be be much less work !
 Let's take a look at an example to make things clearer :
```
 // build a list of TolkienCharacters: a TolkienCharacter has a name, and age and a Race (a specific class)
 // they can be public field or properties, both can be extracted.
 List<TolkienCharacter> fellowshipOfTheRing = new ArrayList<TolkienCharacter>();

 fellowshipOfTheRing.add(new TolkienCharacter("Frodo", 33, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Sam", 38, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Gandalf", 2020, MAIA));
 fellowshipOfTheRing.add(new TolkienCharacter("Legolas", 1000, ELF));
 fellowshipOfTheRing.add(new TolkienCharacter("Pippin", 28, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Gimli", 139, DWARF));
 fellowshipOfTheRing.add(new TolkienCharacter("Aragorn", 87, MAN);
 fellowshipOfTheRing.add(new TolkienCharacter("Boromir", 37, MAN));

 // let's verify the names of the TolkienCharacters in fellowshipOfTheRing :

 assertThat(fellowshipOfTheRing).extracting("name")
 .contains("Boromir", "Gandalf", "Frodo")
 .doesNotContain("Sauron", "Elrond");

 // you can extract nested properties/fields like the name of the race :

 assertThat(fellowshipOfTheRing).extracting("race.name")
 .contains("Hobbit", "Elf")
 .doesNotContain("Orc");
```
 A property with the given name is searched for first. If it doesn't exist a field with the given name is looked for. If the field does not exist an IntrospectionError is thrown. By default private fields are read but you can change this with Assertions.setAllowComparingPrivateFields(boolean). Trying to read a private field when it's not allowed leads to an IntrospectionError.
 Note that the order of extracted property/field values is consistent with the iteration order of the Iterable under test, for example if it's a HashSet, you won't be able to make any assumptions on the extracted values order.
 
 Extracting also support maps, that is, instead of extracting values from an Object, it extracts maps values corresponding to the given keys.
 Example:
```
 Employee yoda = new Employee(1L, new Name("Yoda"), 800);
 Employee luke = new Employee(2L, new Name("Luke"), 22);
 Employee han = new Employee(3L, new Name("Han"), 31);

 // build two maps
 Map<String, Employee> map1 = new HashMap<>();
 map1.put("key1", yoda);
 map1.put("key2", luke);

 Map<String, Employee> map2 = new HashMap<>();
 map2.put("key1", yoda);
 map2.put("key2", han);

 // instead of a list of objects, we have a list of maps
 List<Map<String, Employee>> maps = asList(map1, map2);

 // extracting a property in that case = get values from maps using the property as a key
 assertThat(maps).extracting("key2").containsExactly(luke, han);
 assertThat(maps).extracting("key1").containsExactly(yoda, yoda);

 // type safe version
 assertThat(maps).extracting(key2, Employee.class).containsExactly(luke, han);

 // it works with several keys, extracted values being wrapped in a Tuple
 assertThat(maps).extracting("key1", "key2").containsExactly(tuple(yoda, luke), tuple(yoda, han));

 // unknown keys leads to null (map behavior)
 assertThat(maps).extracting("bad key").containsExactly(null, null);
```
 Parameters:
 propertyOrField - the property/field to extract from the elements of the Iterable under test
 
 Returns:
 a new assertion object whose object under test is the list of extracted property/field values.
 
 Throws:
 
 IntrospectionError - if no field or property exists with the given name in one of the initial Iterable's element.
 - extractingResultOf
```
public AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>> extractingResultOf(String method)
```
 Extract the result of given method invocation on the Iterable's elements under test into a new Iterable, this new Iterable becoming the Iterable under test.
 It allows you to test the method results of the Iterable's elements instead of testing the elements themselves. This is especially useful for classes that do not conform to the Java Bean's getter specification (i.e. public String toString() or public String status() instead of public String getStatus()).
 Let's take a look at an example to make things clearer :
```
 // Build a array of WesterosHouse, a WesterosHouse has a method: public String sayTheWords()

 List<WesterosHouse> greatHouses = new ArrayList<WesterosHouse>();
 greatHouses.add(new WesterosHouse("Stark", "Winter is Coming"));
 greatHouses.add(new WesterosHouse("Lannister", "Hear Me Roar!"));
 greatHouses.add(new WesterosHouse("Greyjoy", "We Do Not Sow"));
 greatHouses.add(new WesterosHouse("Baratheon", "Our is the Fury"));
 greatHouses.add(new WesterosHouse("Martell", "Unbowed, Unbent, Unbroken"));
 greatHouses.add(new WesterosHouse("Tyrell", "Growing Strong"));

 // let's verify the words of the great houses of Westeros:
 assertThat(greatHouses).extractingResultOf("sayTheWords")
 .contains("Winter is Coming", "We Do Not Sow", "Hear Me Roar")
 .doesNotContain("Lannisters always pay their debts");
```
 Following requirements have to be met to extract method results:
 - method has to be public,
 - method cannot accept any arguments,
 - method cannot return void.
 Note that the order of extracted results is consistent with the iteration order of the Iterable under test, for example if it's a HashSet, you won't be able to make any assumptions on the extracted results order.
 Parameters:
 method - the name of the method which result is to be extracted from the array under test
 
 Returns:
 a new assertion object whose object under test is the Iterable of extracted values.
 
 Throws:
 
 IllegalArgumentException - if no method exists with the given name, or method is not public, or method does return void, or method accepts arguments.
 - extractingResultOf
```
public  AbstractListAssert<?,List<? extends P>,P,ObjectAssert> extractingResultOf(String method,
 Class extractedType)
```
 Extract the result of given method invocation on the Iterable's elements under test into a new list of the given class, this new List becoming the object under test.
 It allows you to test the method results of the Iterable's elements instead of testing the elements themselves, it is especially useful for classes that do not conform to the Java Bean's getter specification (i.e. public String toString() or public String status() instead of public String getStatus()).
 Let's take an example to make things clearer :
```
 // Build a array of WesterosHouse, a WesterosHouse has a method: public String sayTheWords()
 List<WesterosHouse> greatHouses = new ArrayList<WesterosHouse>();
 greatHouses.add(new WesterosHouse("Stark", "Winter is Coming"));
 greatHouses.add(new WesterosHouse("Lannister", "Hear Me Roar!"));
 greatHouses.add(new WesterosHouse("Greyjoy", "We Do Not Sow"));
 greatHouses.add(new WesterosHouse("Baratheon", "Our is the Fury"));
 greatHouses.add(new WesterosHouse("Martell", "Unbowed, Unbent, Unbroken"));
 greatHouses.add(new WesterosHouse("Tyrell", "Growing Strong"));

 // let's verify the words of the great houses of Westeros:
 assertThat(greatHouses).extractingResultOf("sayTheWords", String.class)
 .contains("Winter is Coming", "We Do Not Sow", "Hear Me Roar")
 .doesNotContain("Lannisters always pay their debts");
```
 Following requirements have to be met to extract method results:
 - method has to be public,
 - method cannot accept any arguments,
 - method cannot return void.
 Note that the order of extracted property/field values is consistent with the iteration order of the Iterable under test, for example if it's a HashSet, you won't be able to make any assumptions of the extracted values order.
 Parameters:
 method - the name of the method which result is to be extracted from the array under test
 extractedType - type of element of the extracted List
 
 Returns:
 a new assertion object whose object under test is the Iterable of extracted values.
 
 Throws:
 
 IllegalArgumentException - if no method exists with the given name, or method is not public, or method does return void or method accepts arguments.
 - extracting
```
public  AbstractListAssert<?,List<? extends P>,P,ObjectAssert> extracting(String propertyOrField,
 Class extractingType)
```
 Extract the values of given field or property from the Iterable's elements under test into a new Iterable, this new Iterable becoming the Iterable under test.
 It allows you to test a property/field of the the Iterable's elements instead of testing the elements themselves, which can be much less work !
 Let's take an example to make things clearer :
```
 // Build a list of TolkienCharacter, a TolkienCharacter has a name, and age and a Race (a specific class)
 // they can be public field or properties, both can be extracted.
 List<TolkienCharacter> fellowshipOfTheRing = new ArrayList<TolkienCharacter>();

 fellowshipOfTheRing.add(new TolkienCharacter("Frodo", 33, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Sam", 38, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Gandalf", 2020, MAIA));
 fellowshipOfTheRing.add(new TolkienCharacter("Legolas", 1000, ELF));
 fellowshipOfTheRing.add(new TolkienCharacter("Pippin", 28, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Gimli", 139, DWARF));
 fellowshipOfTheRing.add(new TolkienCharacter("Aragorn", 87, MAN);
 fellowshipOfTheRing.add(new TolkienCharacter("Boromir", 37, MAN));

 // let's verify the names of TolkienCharacter in fellowshipOfTheRing :
 assertThat(fellowshipOfTheRing).extracting("name", String.class)
 .contains("Boromir", "Gandalf", "Frodo")
 .doesNotContain("Sauron", "Elrond");

 // you can extract nested property/field like the name of Race :
 assertThat(fellowshipOfTheRing).extracting("race.name", String.class)
 .contains("Hobbit", "Elf")
 .doesNotContain("Orc");
```
 A property with the given name is looked for first, if it doesn't exist then a field with the given name is looked for, if the field does not exist an IntrospectionError is thrown, by default private fields are read but you can change this with Assertions.setAllowComparingPrivateFields(boolean), trying to read a private field when it's not allowed leads to an IntrospectionError.
 Note that the order of extracted property/field values is consistent with the iteration order of the Iterable under test, for example if it's a HashSet, you won't be able to make any assumptions on the extracted values order.
 
 Extracting also support maps, that is, instead of extracting values from an Object, it extract maps values corresponding to the given keys.
 Example:
```
 Employee yoda = new Employee(1L, new Name("Yoda"), 800);
 Employee luke = new Employee(2L, new Name("Luke"), 22);
 Employee han = new Employee(3L, new Name("Han"), 31);

 // build two maps
 Map<String, Employee> map1 = new HashMap<>();
 map1.put("key1", yoda);
 map1.put("key2", luke);

 Map<String, Employee> map2 = new HashMap<>();
 map2.put("key1", yoda);
 map2.put("key2", han);

 // instead of a list of objects, we have a list of maps
 List<Map<String, Employee>> maps = asList(map1, map2);

 // extracting a property in that case = get values from maps using property as a key
 assertThat(maps).extracting(key2, Employee.class).containsExactly(luke, han);

 // non type safe version
 assertThat(maps).extracting("key2").containsExactly(luke, han);
 assertThat(maps).extracting("key1").containsExactly(yoda, yoda);

 // it works with several keys, extracted values being wrapped in a Tuple
 assertThat(maps).extracting("key1", "key2").containsExactly(tuple(yoda, luke), tuple(yoda, han));

 // unknown keys leads to null (map behavior)
 assertThat(maps).extracting("bad key").containsExactly(null, null);
```
 Parameters:
 propertyOrField - the property/field to extract from the Iterable under test
 extractingType - type to return
 
 Returns:
 a new assertion object whose object under test is the list of extracted property/field values.
 
 Throws:
 
 IntrospectionError - if no field or property exists with the given name in one of the initial Iterable's element.
 - extracting
```
public AbstractListAssert<?,List<? extends Tuple>,Tuple,ObjectAssert<Tuple>> extracting(String... propertiesOrFields)
```
 Extract the values of the given fields/properties from the Iterable's elements under test into a new Iterable composed of Tuples (a simple data structure), this new Iterable becoming the Iterable under test.
 It allows you to test fields/properties of the the Iterable's elements instead of testing the elements themselves, which can be much less work!
 The Tuple data corresponds to the extracted values of the given fields/properties, for instance if you ask to extract "id", "name" and "email" then each Tuple data will be composed of id, name and email extracted from the element of the initial Iterable (the Tuple's data order is the same as the given fields/properties order).
 Let's take an example to make things clearer :
```
 // Build a list of TolkienCharacter, a TolkienCharacter has a name, and age and a Race (a specific class)
 // they can be public field or properties, both can be extracted.
 List<TolkienCharacter> fellowshipOfTheRing = new ArrayList<TolkienCharacter>();

 fellowshipOfTheRing.add(new TolkienCharacter("Frodo", 33, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Sam", 38, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Gandalf", 2020, MAIA));
 fellowshipOfTheRing.add(new TolkienCharacter("Legolas", 1000, ELF));
 fellowshipOfTheRing.add(new TolkienCharacter("Pippin", 28, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Gimli", 139, DWARF));
 fellowshipOfTheRing.add(new TolkienCharacter("Aragorn", 87, MAN);
 fellowshipOfTheRing.add(new TolkienCharacter("Boromir", 37, MAN));

 // let's verify 'name' and 'age' of some TolkienCharacter in fellowshipOfTheRing :
 assertThat(fellowshipOfTheRing).extracting("name", "age")
 .contains(tuple("Boromir", 37),
 tuple("Sam", 38),
 tuple("Legolas", 1000));


 // extract 'name', 'age' and Race name values :
 assertThat(fellowshipOfTheRing).extracting("name", "age", "race.name")
 .contains(tuple("Boromir", 37, "Man"),
 tuple("Sam", 38, "Hobbit"),
 tuple("Legolas", 1000, "Elf"));
```
 A property with the given name is looked for first, if it doesn't exist then a field with the given name is looked for, if the field does not exist an IntrospectionError is thrown, by default private fields are read but you can change this with Assertions.setAllowComparingPrivateFields(boolean), trying to read a private field when it's not allowed leads to an IntrospectionError.
 Note that the order of extracted property/field values is consistent with the iteration order of the Iterable under test, for example if it's a HashSet, you won't be able to make any assumptions on the extracted values order.
 
 Extracting also support maps, that is, instead of extracting values from an Object, it extract maps values corresponding to the given keys.
 Example:
```
 Employee yoda = new Employee(1L, new Name("Yoda"), 800);
 Employee luke = new Employee(2L, new Name("Luke"), 22);
 Employee han = new Employee(3L, new Name("Han"), 31);

 // build two maps
 Map<String, Employee> map1 = new HashMap<>();
 map1.put("key1", yoda);
 map1.put("key2", luke);

 Map<String, Employee> map2 = new HashMap<>();
 map2.put("key1", yoda);
 map2.put("key2", han);

 // instead of a list of objects, we have a list of maps
 List<Map<String, Employee>> maps = asList(map1, map2);

 // extracting a property in that case = get values from maps using property as a key
 assertThat(maps).extracting("key2").containsExactly(luke, han);
 assertThat(maps).extracting("key1").containsExactly(yoda, yoda);

 // it works with several keys, extracted values being wrapped in a Tuple
 assertThat(maps).extracting("key1", "key2").containsExactly(tuple(yoda, luke), tuple(yoda, han));

 // unknown keys leads to null (map behavior)
 assertThat(maps).extracting("bad key").containsExactly(null, null);
```
 Parameters:
 propertiesOrFields - the properties/fields to extract from the elements of the Iterable under test
 
 Returns:
 a new assertion object whose object under test is the list of Tuple with extracted properties/fields values as data.
 
 Throws:
 
 IntrospectionError - if one of the given name does not match a field or property in one of the initial Iterable's element.
 - extracting
```
public <V> AbstractListAssert<?,List<? extends V>,V,ObjectAssert<V>> extracting(Extractor<? super ELEMENT,V> extractor)
```
 Extract the values from Iterable's elements under test by applying an extracting function on them. The returned iterable becomes a new object under test.
 It allows to test values from the elements in more safe way than by using extracting(String), as it doesn't utilize introspection.
 Let's have a look at an example :
```
 // Build a list of TolkienCharacter, a TolkienCharacter has a name, and age and a Race (a specific class)
 // they can be public field or properties, both can be extracted.
 List<TolkienCharacter> fellowshipOfTheRing = new ArrayList<TolkienCharacter>();

 fellowshipOfTheRing.add(new TolkienCharacter("Frodo", 33, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Sam", 38, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Gandalf", 2020, MAIA));
 fellowshipOfTheRing.add(new TolkienCharacter("Legolas", 1000, ELF));
 fellowshipOfTheRing.add(new TolkienCharacter("Pippin", 28, HOBBIT));
 fellowshipOfTheRing.add(new TolkienCharacter("Gimli", 139, DWARF));
 fellowshipOfTheRing.add(new TolkienCharacter("Aragorn", 87, MAN);
 fellowshipOfTheRing.add(new TolkienCharacter("Boromir", 37, MAN));

 // this extracts the race
 Extractor<TolkienCharacter, Race> race = new Extractor<TolkienCharacter, Race>() {
 @Override
 public Race extract(TolkienCharacter input) {
 return input.getRace();
 }
 }

 // fellowship has hobbitses, right, my presioussss?
 assertThat(fellowshipOfTheRing).extracting(race).contains(HOBBIT);
```
 Note that the order of extracted property/field values is consistent with the iteration order of the Iterable under test, for example if it's a HashSet, you won't be able to make any assumptions on the extracted values order.
 Parameters:
 extractor - the object transforming input object to desired one
 
 Returns:
 a new assertion object whose object under test is the list of values extracted
 - flatExtracting
```
public <V> AbstractListAssert<?,List<? extends V>,V,ObjectAssert<V>> flatExtracting(Extractor<? super ELEMENT,? extends Collection<V>> extractor)
```
 Extract the Iterable values from Iterable's elements under test by applying an Iterable extracting function on them and concatenating the result lists. The returned iterable becomes a new object under test.
 It allows testing the results of extracting values that are represented by Iterables.
 For example:
```
 CartoonCharacter bart = new CartoonCharacter("Bart Simpson");
 CartoonCharacter lisa = new CartoonCharacter("Lisa Simpson");
 CartoonCharacter maggie = new CartoonCharacter("Maggie Simpson");
 CartoonCharacter homer = new CartoonCharacter("Homer Simpson");
 homer.addChildren(bart, lisa, maggie);

 CartoonCharacter pebbles = new CartoonCharacter("Pebbles Flintstone");
 CartoonCharacter fred = new CartoonCharacter("Fred Flintstone");
 fred.getChildren().add(pebbles);

 Extractor<CartoonCharacter, List<CartoonCharacter>> childrenOf = new Extractor<CartoonChildren, List<CartoonChildren>>() {
 @Override
 public List<CartoonChildren> extract(CartoonCharacter input) {
 return input.getChildren();
 }
 }

 List<CartoonCharacter> parents = newArrayList(homer, fred);
 // check children
 assertThat(parent).flatExtracting(childrenOf)
 .containsOnly(bart, lisa, maggie, pebbles);
```
 The order of extracted values is consisted with both the order of the collection itself, as well as the extracted collections.
 Parameters:
 extractor - the object transforming input object to an Iterable of desired ones
 
 Returns:
 a new assertion object whose object under test is the list of values extracted
 - flatExtracting
```
public AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>> flatExtracting(String fieldOrPropertyName)
```
 Extract from Iterable's elements the Iterable/Array values corresponding to the given property/field name and concatenate them into a single list becoming the new object under test.
 It allows testing the elements of extracting values that are represented by iterables or arrays.
 For example:
```
 CartoonCharacter bart = new CartoonCharacter("Bart Simpson");
 CartoonCharacter lisa = new CartoonCharacter("Lisa Simpson");
 CartoonCharacter maggie = new CartoonCharacter("Maggie Simpson");
 CartoonCharacter homer = new CartoonCharacter("Homer Simpson");
 homer.addChildren(bart, lisa, maggie);

 CartoonCharacter pebbles = new CartoonCharacter("Pebbles Flintstone");
 CartoonCharacter fred = new CartoonCharacter("Fred Flintstone");
 fred.getChildren().add(pebbles);

 List<CartoonCharacter> parents = newArrayList(homer, fred);
 // check children
 assertThat(parents).flatExtracting("children")
 .containsOnly(bart, lisa, maggie, pebbles);
```
 The order of extracted values is consisted with both the order of the collection itself, as well as the extracted collections.
 Parameters:
 fieldOrPropertyName - the object transforming input object to an Iterable of desired ones
 
 Returns:
 a new assertion object whose object under test is the list of values extracted
 
 Throws:
 
 IllegalArgumentException - if one of the extracted property value was not an array or an iterable.
 - flatExtracting
```
public AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>> flatExtracting(String... fieldOrPropertyNames)
```
 Extract the given properties/fields values from each Iterable's element and flatten the extracted values in a list that is used as the new object under test.
 Given 2 properties, if the extracted values were not flattened, instead having a simple list like :
```
element1.value1, element1.value2, element2.value1, element2.value2, ... 
```
 ... we would get a list of list :
```
list(element1.value1, element1.value2), list(element2.value1, element2.value2), ... 
```
 Code example:
```
 // fellowshipOfTheRing is a List<TolkienCharacter>

 // values are extracted in order and flattened : age1, name1, age2, name2, age3 ...
 assertThat(fellowshipOfTheRing).flatExtracting("age", "name")
 .contains(33 ,"Frodo",
 1000, "Legolas",
 87, "Aragorn");
```
 Parameters:
 fieldOrPropertyNames - the field and/or property names to extract from each actual Iterable's element
 
 Returns:
 a new assertion object whose object under test is a flattened list of all extracted values.
 
 Throws:
 
 IllegalArgumentException - if fieldOrPropertyNames vararg is null or empty
 Since:
 
 2.5.0
 - containsExactlyElementsOf
```
public SELF containsExactlyElementsOf(Iterable<? extends ELEMENT> iterable)
```
 Same as ObjectEnumerableAssert.containsExactly(Object...) but handle the Iterable to array conversion : verifies that actual contains exactly the elements of the given iterable and nothing else in the same order.
 Example:
```
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertion will pass
 assertThat(elvesRings).containsExactlyElementsOf(newLinkedList(vilya, nenya, narya));
 
 // assertion will fail as actual and expected order differ
 assertThat(elvesRings).containsExactlyElementsOf(newLinkedList(nenya, vilya, narya));
```
 If you want to directly specify the elements to check, use containsExactly(Object...) instead.
 Specified by:
 
 containsExactlyElementsOf in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 iterable - the given Iterable we will get elements from.
 
 Returns:
 this assertion object.
 - containsOnlyElementsOf
```
public SELF containsOnlyElementsOf(Iterable<? extends ELEMENT> iterable)
```
 Same semantic as ObjectEnumerableAssert.containsOnly(Object[]) : verifies that actual contains all the elements of the given iterable and nothing else, in any order and ignoring duplicates (i.e. once a value is found, its duplicates are also considered found).
 Use ObjectEnumerableAssert.isSubsetOf(Iterable) to check that actual is a subset of given iterable
 Example:
```
 Iterable<Ring> rings = newArrayList(nenya, vilya);
 
 // assertion will pass
 assertThat(rings).containsOnlyElementsOf(newArrayList(nenya, vilya))
 .containsOnlyElementsOf(newArrayList(nenya, nenya, vilya, vilya));
 assertThat(newArrayList(nenya, nenya, vilya, vilya)).containsOnlyElementsOf(rings);
 
 // assertion will fail as actual does not contain narya
 assertThat(rings).containsOnlyElementsOf(newLinkedList(nenya, vilya, narya));
 // assertion will fail as actual contains nenya
 assertThat(rings).containsOnlyElementsOf(newLinkedList(vilya));
```
 If you want to directly specify the elements to check, use containsOnly(Object...) instead.
 Specified by:
 
 containsOnlyElementsOf in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 iterable - the given Iterable we will get elements from.
 
 Returns:
 this assertion object.
 - hasSameElementsAs
```
public SELF hasSameElementsAs(Iterable<? extends ELEMENT> iterable)
```
 An alias of ObjectEnumerableAssert.containsOnlyElementsOf(Iterable) : verifies that actual contains all the elements of the given iterable and nothing else, in any order.
 Example:
```
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertions will pass:
 assertThat(elvesRings).hasSameElementsAs(newArrayList(nenya, narya, vilya))
 .hasSameElementsAs(newArrayList(nenya, narya, vilya, nenya));
 
 // assertions will fail:
 assertThat(elvesRings).hasSameElementsAs(newArrayList(nenya, narya));
 assertThat(elvesRings).hasSameElementsAs(newArrayList(nenya, narya, vilya, oneRing));
```
 Specified by:
 
 hasSameElementsAs in interface ObjectEnumerableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ELEMENT>
 
 Parameters:
 iterable - the Iterable whose elements we expect to be present
 
 Returns:
 this assertion object
 - usingComparatorForElementFieldsWithNames
```
public <T> SELF usingComparatorForElementFieldsWithNames(Comparator<T> comparator,
 String... elementPropertyOrFieldNames)
```
 Allows to set a comparator to compare properties or fields of elements with the given names. A typical usage is for comparing fields of numeric type at a given precision.
 To be used, comparators need to be specified by this method before calling any of:
 Comparators specified by this method have precedence over comparators specified by usingComparatorForElementFieldsWithType.
 Example:
```
 public class TolkienCharacter {
 private String name;
 private double height;
 // constructor omitted
 }

 TolkienCharacter frodo = new TolkienCharacter("Frodo", 1.2);
 TolkienCharacter tallerFrodo = new TolkienCharacter("Frodo", 1.3);
 TolkienCharacter reallyTallFrodo = new TolkienCharacter("Frodo", 1.9);

 Comparator<Double> closeEnough = new Comparator<Double>() {
 double precision = 0.5;
 public int compare(Double d1, Double d2) {
 return Math.abs(d1 - d2) <= precision ? 0 : 1;
 }
 };

 // assertions will pass
 assertThat(asList(frodo)).usingComparatorForElementFieldsWithNames(closeEnough, "height")
 .usingFieldByFieldElementComparator()
 .contains(tallerFrodo);

 assertThat(asList(frodo)).usingComparatorForElementFieldsWithNames(closeEnough, "height")
 .usingElementComparatorOnFields("height")
 .contains(tallerFrodo);

 assertThat(asList(frodo)).usingComparatorForElementFieldsWithNames(closeEnough, "height")
 .usingElementComparatorIgnoringFields("name")
 .contains(tallerFrodo);

 assertThat(asList(frodo)).usingComparatorForElementFieldsWithNames(closeEnough, "height")
 .usingRecursiveFieldByFieldElementComparator()
 .contains(tallerFrodo);

 // assertion will fail
 assertThat(asList(frodo)).usingComparatorForElementFieldsWithNames(closeEnough, "height")
 .usingFieldByFieldElementComparator()
 .containsExactly(reallyTallFrodo);
```
 Parameters:
 comparator - the Comparator to use
 elementPropertyOrFieldNames - the names of the properties and/or fields of the elements the comparator should be used for
 
 Returns:
 this assertions object
 Since:
 
 2.5.0 / 3.5.0
 - usingComparatorForElementFieldsWithType
```
public <T> SELF usingComparatorForElementFieldsWithType(Comparator<T> comparator,
 Class<T> type)
```
 Allows to set a specific comparator to compare properties or fields of elements with the given type. A typical usage is for comparing fields of numeric type at a given precision.
 To be used, comparators need to be specified by this method before calling any of:
 Comparators specified by usingComparatorForElementFieldsWithNames have precedence over comparators specified by this method.
 Example:
```
 public class TolkienCharacter {
 private String name;
 private double height;
 // constructor omitted
 }
 TolkienCharacter frodo = new TolkienCharacter("Frodo", 1.2);
 TolkienCharacter tallerFrodo = new TolkienCharacter("Frodo", 1.3);
 TolkienCharacter reallyTallFrodo = new TolkienCharacter("Frodo", 1.9);

 Comparator<Double> closeEnough = new Comparator<Double>() {
 double precision = 0.5;
 public int compare(Double d1, Double d2) {
 return Math.abs(d1 - d2) <= precision ? 0 : 1;
 }
 };

 // assertions will pass
 assertThat(Arrays.asList(frodo)).usingComparatorForElementFieldsWithType(closeEnough, Double.class)
 .usingFieldByFieldElementComparator()
 .contains(tallerFrodo);

 assertThat(Arrays.asList(frodo)).usingComparatorForElementFieldsWithType(closeEnough, Double.class)
 .usingElementComparatorOnFields("height")
 .contains(tallerFrodo);

 assertThat(Arrays.asList(frodo)).usingComparatorForElementFieldsWithType(closeEnough, Double.class)
 .usingElementComparatorIgnoringFields("name")
 .contains(tallerFrodo);

 assertThat(Arrays.asList(frodo)).usingComparatorForElementFieldsWithType(closeEnough, Double.class)
 .usingRecursiveFieldByFieldElementComparator()
 .contains(tallerFrodo);

 // assertion will fail
 assertThat(Arrays.asList(frodo)).usingComparatorForElementFieldsWithType(closeEnough, Double.class)
 .usingFieldByFieldElementComparator()
 .contains(reallyTallFrodo);
```
 Parameters:
 comparator - the Comparator to use
 type - the Class of the type of the element fields the comparator should be used for
 
 Returns:
 this assertions object
 Since:
 
 2.5.0 / 3.5.0
 - usingComparatorForType
```
public <T> SELF usingComparatorForType(Comparator<T> comparator,
 Class<T> type)
```
 Allows to set a specific comparator for the given type of elements or their fields. Extends usingComparatorForElementFieldsWithType(java.util.Comparator<T>, java.lang.Class<T>) by applying comparator specified for given type to elements themselves, not only to their fields.
 Usage of this method affects comparators set by next methods:
 Example:
```
 // assertion will pass
 assertThat(asList("some", new BigDecimal("4.2")))
 .usingComparatorForType(BIG_DECIMAL_COMPARATOR, BigDecimal.class)
 .contains(new BigDecimal("4.20"));
 
```
 Parameters:
 comparator - the Comparator to use
 type - the Class of the type of the element or element fields the comparator should be used for
 
 Returns:
 this assertions object
 Since:
 
 2.9.0 / 3.9.0
 - usingFieldByFieldElementComparator
```
public SELF usingFieldByFieldElementComparator()
```
 Use field/property by field/property comparison (including inherited fields/properties) instead of relying on actual type A equals method to compare group elements for incoming assertion checks. Private fields are included but this can be disabled using Assertions.setAllowExtractingPrivateFields(boolean).
 This can be handy if equals method of the objects to compare does not suit you.
 Note that the comparison is not recursive, if one of the fields/properties is an Object, it will be compared to the other field/property using its equals method.
 You can specify a custom comparator per name or type of element field with usingComparatorForElementFieldsWithNames(Comparator, String...) and usingComparatorForElementFieldsWithType(Comparator, Class).
 Example:
```
 TolkienCharacter frodo = new TolkienCharacter("Frodo", 33, HOBBIT);
 TolkienCharacter frodoClone = new TolkienCharacter("Frodo", 33, HOBBIT);

 // Fail if equals has not been overridden in TolkienCharacter as equals default implementation only compares references
 assertThat(newArrayList(frodo)).contains(frodoClone);

 // frodo and frodoClone are equals when doing a field by field comparison.
 assertThat(newArrayList(frodo)).usingFieldByFieldElementComparator().contains(frodoClone);
```
 Returns:
 this assertion object.
 - usingRecursiveFieldByFieldElementComparator
```
public SELF usingRecursiveFieldByFieldElementComparator()
```
 Use a recursive field/property by field/property comparison (including inherited fields/properties) instead of relying on actual type equals method to compare group elements for incoming assertion checks. This can be useful if actual's equals implementation does not suit you.
 The recursive property/field comparison is not applied on fields having a custom equals implementation, i.e. the overridden equals method will be used instead of a field/property by field/property comparison.
 The recursive comparison handles cycles.
 You can specify a custom comparator per (nested) name or type of element field with usingComparatorForElementFieldsWithNames and usingComparatorForElementFieldsWithType.
 The objects to compare can be of different types but must have the same properties/fields. For example if actual object has a name String field, the other object must also have one.
 If an object has a field and a property with the same name, the property value will be used over the field.
 Example:
```
 TolkienCharacter frodo = new TolkienCharacter("Frodo", 33, HOBBIT);
 TolkienCharacter pippin = new TolkienCharacter("Pippin", 28, HOBBIT);
 frodo.setFriend(pippin);
 pippin.setFriend(frodo);

 TolkienCharacter frodoClone = new TolkienCharacter("Frodo", 33, HOBBIT);
 TolkienCharacter pippinClone = new TolkienCharacter("Pippin", 28, HOBBIT);
 frodoClone.setFriend(pippinClone);
 pippinClone.setFriend(frodoClone);

 List<TolkienCharacter> hobbits = Arrays.asList(frodo, pippin);

 // fails if equals has not been overridden in TolkienCharacter as it would compares object references
 assertThat(hobbits).contains(frodoClone, pippinClone);

 // frodo/frodoClone and pippin/pippinClone are equals when doing a recursive property/field by property/field comparison
 assertThat(hobbits).usingRecursiveFieldByFieldElementComparator()
 .contains(frodoClone, pippinClone);
 
```
 Returns:
 this assertion object.
 Since:
 
 2.5.0 / 3.5.0
 - usingElementComparatorOnFields
```
public SELF usingElementComparatorOnFields(String... fields)
```
 Use field/property by field/property comparison on the given fields/properties only (including inherited fields/properties) instead of relying on actual type A equals method to compare group elements for incoming assertion checks. Private fields are included but this can be disabled using Assertions.setAllowExtractingPrivateFields(boolean).
 This can be handy if equals method of the objects to compare does not suit you.
 You can specify a custom comparator per name or type of element field with usingComparatorForElementFieldsWithNames(Comparator, String...) and usingComparatorForElementFieldsWithType(Comparator, Class).
 Note that the comparison is not recursive, if one of the fields/properties is an Object, it will be compared to the other field/property using its equals method.
 Example:
```
 TolkienCharacter frodo = new TolkienCharacter("Frodo", 33, HOBBIT);
 TolkienCharacter sam = new TolkienCharacter("Sam", 38, HOBBIT);

 // frodo and sam both are hobbits, so they are equals when comparing only race
 assertThat(newArrayList(frodo)).usingElementComparatorOnFields("race").contains(sam); // OK

 // ... but not when comparing both name and race
 assertThat(newArrayList(frodo)).usingElementComparatorOnFields("name", "race").contains(sam); // FAIL
```
 Parameters:
 fields - the fields/properties to compare using element comparators
 
 Returns:
 this assertion object.
 - usingComparisonStrategy
```
protected SELF usingComparisonStrategy(ComparisonStrategy comparisonStrategy)
```
 - usingElementComparatorIgnoringFields
```
public SELF usingElementComparatorIgnoringFields(String... fields)
```
 Use field/property by field/property comparison on all fields/properties except the given ones (including inherited fields/properties) instead of relying on actual type A equals method to compare group elements for incoming assertion checks. Private fields are included but this can be disabled using Assertions.setAllowExtractingPrivateFields(boolean).
 This can be handy if equals method of the objects to compare does not suit you.
 You can specify a custom comparator per name or type of element field with usingComparatorForElementFieldsWithNames(Comparator, String...) and usingComparatorForElementFieldsWithType(Comparator, Class).
 Note that the comparison is not recursive, if one of the fields/properties is an Object, it will be compared to the other field/property using its equals method.
 Example:
```
 TolkienCharacter frodo = new TolkienCharacter("Frodo", 33, HOBBIT);
 TolkienCharacter sam = new TolkienCharacter("Sam", 38, HOBBIT);

 // frodo and sam both are hobbits, so they are equals when comparing only race (i.e. ignoring all other fields)
 assertThat(newArrayList(frodo)).usingElementComparatorIgnoringFields("name", "age").contains(sam); // OK

 // ... but not when comparing both name and race
 assertThat(newArrayList(frodo)).usingElementComparatorIgnoringFields("age").contains(sam); // FAIL
```
 Returns:
 this assertion object.
 - inHexadecimal
```
public SELF inHexadecimal()
```
 Enable hexadecimal representation of Iterable elements instead of standard representation in error messages.
 It can be useful to better understand what the error was with a more meaningful error message.
 Example
```
 final List<Byte> bytes = newArrayList((byte) 0x10, (byte) 0x20);
```
 With standard error message:
```
 assertThat(bytes).contains((byte) 0x30);

 Expecting:
 <[16, 32]>
 to contain:
 <[48]>
 but could not find:
 <[48]>
```
 With Hexadecimal error message:
```
 assertThat(bytes).inHexadecimal().contains((byte) 0x30);

 Expecting:
 <[0x10, 0x20]>
 to contain:
 <[0x30]>
 but could not find:
 <[0x30]>
```
 Overrides:
 
 inHexadecimal in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Returns:
 this assertion object.
 - inBinary
```
public SELF inBinary()
```
 Enable binary representation of Iterable elements instead of standard representation in error messages.
 Example:
```
 final List<Byte> bytes = newArrayList((byte) 0x10, (byte) 0x20);
```
 With standard error message:
```
 assertThat(bytes).contains((byte) 0x30);

 Expecting:
 <[16, 32]>
 to contain:
 <[48]>
 but could not find:
 <[48]>
```
 With binary error message:
```
 assertThat(bytes).inBinary().contains((byte) 0x30);

 Expecting:
 <[0b00010000, 0b00100000]>
 to contain:
 <[0b00110000]>
 but could not find:
 <[0b00110000]>
```
 Overrides:
 
 inBinary in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Returns:
 this assertion object.
 - filteredOn
```
public AbstractListAssert<?,List<? extends ELEMENT>,ELEMENT,ObjectAssert<ELEMENT>> filteredOn(String propertyOrFieldName,
 Object expectedValue)
```
 Filter the iterable under test keeping only elements having a property or field equal to expectedValue, the property/field is specified by propertyOrFieldName parameter.
 The filter first tries to get the value from a property (named propertyOrFieldName), if no such property exists it tries to read the value from a field. Reading private fields is supported by default, this can be globally disabled by calling Assertions.setAllowExtractingPrivateFields(false).
 When reading nested property/field, if an intermediate value is null the whole nested property/field is considered to be null, thus reading "address.street.name" value will return null if "street" value is null.
 As an example, let's check all employees 800 years old (yes, special employees):
```
 Employee yoda = new Employee(1L, new Name("Yoda"), 800);
 Employee obiwan = new Employee(2L, new Name("Obiwan"), 800);
 Employee luke = new Employee(3L, new Name("Luke", "Skywalker"), 26);
 Employee noname = new Employee(4L, null, 50);

 List<Employee> employees = newArrayList(yoda, luke, obiwan, noname);

 assertThat(employees).filteredOn("age", 800)
 .containsOnly(yoda, obiwan);
```
 Nested properties/fields are supported:
```
 // Name is bean class with 'first' and 'last' String properties

 // name is null for noname => it does not match the filter on "name.first"
 assertThat(employees).filteredOn("name.first", "Luke")
 .containsOnly(luke);

 assertThat(employees).filteredOn("name.last", "Vader")
 .isEmpty();
```
 If you want to filter on null value, use filteredOnNull(String) as Java will resolve the call to filteredOn(String, FilterOperator) instead of this method.
 An IntrospectionError is thrown if the given propertyOrFieldName can't be found in one of the iterable elements.
 You can chain filters:
```
 // fellowshipOfTheRing is a list of TolkienCharacter having race and name fields
 // 'not' filter is statically imported from Assertions.not

 assertThat(fellowshipOfTheRing).filteredOn("race.name", "Man")
 .filteredOn("name", not("Boromir"))
 .containsOnly(aragorn);
```
 If you need more complex filter, use filteredOn(Condition) and provide a Condition to specify the filter to apply.
 Parameters:
 propertyOrFieldName - the name of the property or field to read
 expectedValue - the value to compare element's property or field with
 
 Returns:
 a new assertion object with the filtered iterable under test
 
 Throws:
 
 IllegalArgumentException - if the given propertyOrFieldName is null or empty.
 
 IntrospectionError - if the given propertyOrFieldName can't be found in one of the iterable elements.
 - filteredOnNull
```
public AbstractListAssert<?,List<? extends ELEMENT>,ELEMENT,ObjectAssert<ELEMENT>> filteredOnNull(String propertyOrFieldName)
```
 Filter the iterable under test keeping only elements whose property or field specified by propertyOrFieldName is null.
 The filter first tries to get the value from a property (named propertyOrFieldName), if no such property exists it tries to read the value from a field. Reading private fields is supported by default, this can be globally disabled by calling Assertions.setAllowExtractingPrivateFields(false).
 When reading nested property/field, if an intermediate value is null the whole nested property/field is considered to be null, thus reading "address.street.name" value will return null if "street" value is null.
 As an example, let's check all employees 800 years old (yes, special employees):
```
 Employee yoda = new Employee(1L, new Name("Yoda"), 800);
 Employee obiwan = new Employee(2L, new Name("Obiwan"), 800);
 Employee luke = new Employee(3L, new Name("Luke", "Skywalker"), 26);
 Employee noname = new Employee(4L, null, 50);

 List<Employee> employees = newArrayList(yoda, luke, obiwan, noname);

 assertThat(employees).filteredOnNull("name")
 .containsOnly(noname);
```
 Nested properties/fields are supported:
```
 // Name is bean class with 'first' and 'last' String properties

 assertThat(employees).filteredOnNull("name.last")
 .containsOnly(yoda, obiwan, noname);
```
 An IntrospectionError is thrown if the given propertyOrFieldName can't be found in one of the iterable elements.
 If you need more complex filter, use filteredOn(Condition) and provide a Condition to specify the filter to apply.
 Parameters:
 propertyOrFieldName - the name of the property or field to read
 
 Returns:
 a new assertion object with the filtered iterable under test
 
 Throws:
 
 IntrospectionError - if the given propertyOrFieldName can't be found in one of the iterable elements.
 - filteredOn
```
public AbstractListAssert<?,List<? extends ELEMENT>,ELEMENT,ObjectAssert<ELEMENT>> filteredOn(String propertyOrFieldName,
 FilterOperator<?> filterOperator)
```
 Filter the iterable under test keeping only elements having a property or field matching the filter expressed with the FilterOperator, the property/field is specified by propertyOrFieldName parameter.
 The existing filters are :
 Whatever filter is applied, it first tries to get the value from a property (named propertyOrFieldName), if no such property exists it tries to read the value from a field. Reading private fields is supported by default, this can be globally disabled by calling Assertions.setAllowExtractingPrivateFields(false).
 When reading nested property/field, if an intermediate value is null the whole nested property/field is considered to be null, thus reading "address.street.name" value will return null if "street" value is null.
 As an example, let's check stuff on some special employees :
```
 Employee yoda = new Employee(1L, new Name("Yoda"), 800);
 Employee obiwan = new Employee(2L, new Name("Obiwan"), 800);
 Employee luke = new Employee(3L, new Name("Luke", "Skywalker"), 26);

 List<Employee> employees = newArrayList(yoda, luke, obiwan, noname);

 // 'not' filter is statically imported from Assertions.not
 assertThat(employees).filteredOn("age", not(800))
 .containsOnly(luke);

 // 'in' filter is statically imported from Assertions.in
 // Name is bean class with 'first' and 'last' String properties
 assertThat(employees).filteredOn("name.first", in("Yoda", "Luke"))
 .containsOnly(yoda, luke);

 // 'notIn' filter is statically imported from Assertions.notIn
 assertThat(employees).filteredOn("name.first", notIn("Yoda", "Luke"))
 .containsOnly(obiwan);
```
 An IntrospectionError is thrown if the given propertyOrFieldName can't be found in one of the iterable elements.
 Note that combining filter operators is not supported, thus the following code is not correct:
```
 // Combining filter operators like not(in(800)) is NOT supported
 // -> throws UnsupportedOperationException
 assertThat(employees).filteredOn("age", not(in(800)))
 .contains(luke);
```
 You can chain filters:
```
 // fellowshipOfTheRing is a list of TolkienCharacter having race and name fields
 // 'not' filter is statically imported from Assertions.not

 assertThat(fellowshipOfTheRing).filteredOn("race.name", "Man")
 .filteredOn("name", not("Boromir"))
 .containsOnly(aragorn);
```
 If you need more complex filter, use filteredOn(Condition) and provide a Condition to specify the filter to apply.
 Parameters:
 propertyOrFieldName - the name of the property or field to read
 filterOperator - the filter operator to apply
 
 Returns:
 a new assertion object with the filtered iterable under test
 
 Throws:
 
 IllegalArgumentException - if the given propertyOrFieldName is null or empty.
 - filteredOn
```
public AbstractListAssert<?,List<? extends ELEMENT>,ELEMENT,ObjectAssert<ELEMENT>> filteredOn(Condition<? super ELEMENT> condition)
```
 Filter the iterable under test keeping only elements matching the given Condition.
 Example : check old employees whose age > 100:
```
 Employee yoda = new Employee(1L, new Name("Yoda"), 800);
 Employee obiwan = new Employee(2L, new Name("Obiwan"), 800);
 Employee luke = new Employee(3L, new Name("Luke", "Skywalker"), 26);
 Employee noname = new Employee(4L, null, 50);

 List<Employee> employees = newArrayList(yoda, luke, obiwan, noname);

 // old employee condition, "old employees" describes the condition in error message
 // you just have to implement 'matches' method
 Condition<Employee> oldEmployees = new Condition<Employee>("old employees") {
 @Override
 public boolean matches(Employee employee) {
 return employee.getAge() > 100;
 }
 };
 }
 assertThat(employees).filteredOn(oldEmployees)
 .containsOnly(yoda, obiwan);
```
 You can combine Condition with condition operator like Not:
```
 // 'not' filter is statically imported from Assertions.not
 assertThat(employees).filteredOn(not(oldEmployees))
 .contains(luke, noname);
```
 Parameters:
 condition - the filter condition / predicate
 
 Returns:
 a new assertion object with the filtered iterable under test
 
 Throws:
 
 IllegalArgumentException - if the given condition is null.
 - first
```
public ELEMENT_ASSERT first()
```
 Navigate and allow to perform assertions on the first element of the Iterable under test.
 By default available assertions after first() are Object assertions, it is possible though to get more specific assertions if you create IterableAssert with either:
 - the element assert class, see: assertThat(Iterable, element assert class)
 - an assert factory used that knows how to create elements assertion, see: assertThat(Iterable, element assert factory)
 Example: default Object assertions
```
 // default iterable assert => element assert is ObjectAssert
 Iterable<TolkienCharacter> hobbits = newArrayList(frodo, sam, pippin);

 // assertion succeeds, only Object assertions are available after first()
 assertThat(hobbits).first()
 .isEqualTo(frodo);

 // assertion fails
 assertThat(hobbits).first()
 .isEqualTo(pippin);
```
 If you have created the Iterable assertion using an AssertFactory or the element assert class, you will be able to chain first() with more specific typed assertion.
 Example: use of String assertions after first()
```
 Iterable<String> hobbits = newArrayList("frodo", "sam", "pippin");

 // assertion succeeds
 // String assertions are available after first()
 assertThat(hobbits, StringAssert.class).first()
 .startsWith("fro")
 .endsWith("do");
 // assertion fails
 assertThat(hobbits, StringAssert.class).first()
 .startsWith("pip");
```
 Returns:
 the assertion on the first element
 
 Throws:
 
 AssertionError - if the actual Iterable is empty.
 Since:
 
 2.5.0 / 3.5.0
 - last
```
public ELEMENT_ASSERT last()
```
 Navigate and allow to perform assertions on the first element of the Iterable under test.
 By default available assertions after last() are Object assertions, it is possible though to get more specific assertions if you create IterableAssert with either:
 - the element assert class, see: assertThat(Iterable, element assert class)
 - an assert factory used that knows how to create elements assertion, see: assertThat(Iterable, element assert factory)
 Example: default Object assertions
```
 // default iterable assert => element assert is ObjectAssert
 Iterable<TolkienCharacter> hobbits = newArrayList(frodo, sam, pippin);

 // assertion succeeds, only Object assertions are available after last()
 assertThat(hobbits).last()
 .isEqualTo(pippin);

 // assertion fails
 assertThat(hobbits).last()
 .isEqualTo(frodo);
```
 If you have created the Iterable assertion using an AssertFactory or the element assert class, you will be able to chain last() with more specific typed assertion.
 Example: use of String assertions after last()
```
 Iterable<String> hobbits = newArrayList("frodo", "sam", "pippin");

 // assertion succeeds
 // String assertions are available after last()
 assertThat(hobbits, StringAssert.class).last()
 .startsWith("pi")
 .endsWith("in");
 // assertion fails
 assertThat(hobbits, StringAssert.class).last()
 .startsWith("fro");
```
 Returns:
 the assertion on the first element
 
 Throws:
 
 AssertionError - if the actual Iterable is empty.
 Since:
 
 2.5.0 / 3.5.0
 - element
```
public ELEMENT_ASSERT element(int index)
```
 Navigate and allow to perform assertions on the chosen element of the Iterable under test.
 By default available assertions after element(index) are Object assertions, it is possible though to get more specific assertions if you create IterableAssert with either:
 - the element assert class, see: assertThat(Iterable, element assert class)
 - an assert factory used that knows how to create elements assertion, see: assertThat(Iterable, element assert factory)
 Example: default Object assertions
```
 // default iterable assert => element assert is ObjectAssert
 Iterable<TolkienCharacter> hobbits = newArrayList(frodo, sam, pippin);

 // assertion succeeds, only Object assertions are available after element(index)
 assertThat(hobbits).element(1)
 .isEqualTo(sam);

 // assertion fails
 assertThat(hobbits).element(1)
 .isEqualTo(pippin);
```
 If you have created the Iterable assertion using an AssertFactory or the element assert class, you will be able to chain element(index) with more specific typed assertion.
 Example: use of String assertions after element(index)
```
 Iterable<String> hobbits = newArrayList("frodo", "sam", "pippin");

 // assertion succeeds
 // String assertions are available after element(index)
 assertThat(hobbits, StringAssert.class).element(1)
 .startsWith("sa")
 .endsWith("am");
 // assertion fails
 assertThat(hobbits, StringAssert.class).element(1)
 .startsWith("fro");
```
 Returns:
 the assertion on the given element
 
 Throws:
 
 AssertionError - if the given index is out of bound.
 Since:
 
 2.5.0 / 3.5.0
 - toAssert
```
protected abstract ELEMENT_ASSERT toAssert(ELEMENT value,
 String description)
```
 - navigationDescription
```
protected String navigationDescription(String propertyName)
```
 - as
```
public SELF as(String description,
 Object... args)
```
 Description copied from class: AbstractAssert
 Sets the description of the assertion that is going to be called after.
 You must set it before calling the assertion otherwise it is ignored as the failing assertion breaks the chained call by throwing an AssertionError.
 The description follows String.format(String, Object...) syntax.
 Example :
```
 try {
 // set a bad age to Mr Frodo which is really 33 years old.
 frodo.setAge(50);
 // specify a test description (call as() before the assertion !), it supports String format syntax.
 assertThat(frodo.getAge()).as("check %s's age", frodo.getName()).isEqualTo(33);
 } catch (AssertionError e) {
 assertThat(e).hasMessage("[check Frodo's age] expected:<[33]> but was:<[50]>");
 }
```
 Specified by:
 
 as in interface Descriptable<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>>
 
 Overrides:
 
 as in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 description - the new description to set.
 args - optional parameter if description is a format String.
 
 Returns:
 this object.
 See Also:
 Descriptable.describedAs(String, Object...)
 - as
```
public SELF as(Description description)
```
 Description copied from class: AbstractAssert
 
 Sets the description of the assertion that is going to be called after.
 You must set it before calling the assertion otherwise it is ignored as the failing assertion breaks the chained call by throwing an AssertionError.
 This overloaded version of "describedAs" offers more flexibility than the one taking a String by allowing users to pass their own implementation of a description. For example, a description that creates its value lazily, only when an assertion failure occurs.
 
 Specified by:
 
 as in interface Descriptable<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>>
 
 Overrides:
 
 as in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 description - the new description to set.
 
 Returns:
 this object.
 See Also:
 Descriptable.describedAs(Description)
 - describedAs
```
public SELF describedAs(Description description)
```
 Description copied from class: AbstractAssert
 
 Sets the description of the assertion that is going to be called after.
 You must set it before calling the assertion otherwise it is ignored as the failing assertion breaks the chained call by throwing an AssertionError.
 This overloaded version of "describedAs" offers more flexibility than the one taking a String by allowing users to pass their own implementation of a description. For example, a description that creates its value lazily, only when an assertion failure occurs.
 
 Specified by:
 
 describedAs in interface Descriptable<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>>
 
 Overrides:
 
 describedAs in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 description - the new description to set.
 
 Returns:
 this object.
 - describedAs
```
public SELF describedAs(String description,
 Object... args)
```
 Description copied from class: AbstractAssert
 
 Sets the description of the assertion that is going to be called after.
 You must set it before calling the assertion otherwise it is ignored as the failing assertion breaks the chained call by throwing an AssertionError.
 Alias for Descriptable.as(String, Object...) since "as" is a keyword in Groovy.
 
 Specified by:
 
 describedAs in interface Descriptable<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>>
 
 Overrides:
 
 describedAs in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 description - the new description to set.
 args - optional parameter if description is a format String.
 
 Returns:
 this object.
 - doesNotHave
```
public SELF doesNotHave(Condition<? super ACTUAL> condition)
```
 Description copied from class: AbstractAssert
 
 Verifies that the actual value does not satisfy the given condition. This method is an alias for ExtensionPoints.isNot(Condition).
 
 Specified by:
 
 doesNotHave in interface ExtensionPoints<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 doesNotHave in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this ExtensionPoints object.
 See Also:
 ExtensionPoints.isNot(Condition)
 - doesNotHaveSameClassAs
```
public SELF doesNotHaveSameClassAs(Object other)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value does not have the same class as the given object.
 Example:
```
 // assertions will pass
 assertThat(1).doesNotHaveSameClassAs("abc");
 assertThat(new ArrayList<String>()).doesNotHaveSameClassAs(new LinkedList<String>());
 
 // assertions will fail
 assertThat(1).doesNotHaveSameClassAs(2);
 assertThat("abc").doesNotHaveSameClassAs("123");
 assertThat(new ArrayList<String>()).doesNotHaveSameClassAs(new ArrayList<Integer>());
```
 Specified by:
 
 doesNotHaveSameClassAs in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 doesNotHaveSameClassAs in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 other - the object to check type against.
 
 Returns:
 this assertion object.
 - has
```
public SELF has(Condition<? super ACTUAL> condition)
```
 Description copied from class: AbstractAssert
 
 Verifies that the actual value satisfies the given condition. This method is an alias for ExtensionPoints.is(Condition) .
 
 Specified by:
 
 has in interface ExtensionPoints<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 has in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this ExtensionPoints object.
 See Also:
 ExtensionPoints.is(Condition)
 - hasSameClassAs
```
public SELF hasSameClassAs(Object other)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value has the same class as the given object.
 Example:
```
 // assertions will pass
 assertThat(1).hasSameClassAs(2);
 assertThat("abc").hasSameClassAs("123");
 assertThat(new ArrayList<String>()).hasSameClassAs(new ArrayList<Integer>());
 
 // assertions will fail
 assertThat(1).hasSameClassAs("abc");
 assertThat(new ArrayList<String>()).hasSameClassAs(new LinkedList<String>());
```
 Specified by:
 
 hasSameClassAs in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 hasSameClassAs in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 other - the object to check type against.
 
 Returns:
 this assertion object.
 - hasToString
```
public SELF hasToString(String expectedToString)
```
 Description copied from class: AbstractAssert
 Verifies that actual actual.toString() is equal to the given String.
 Example :
```
 CartoonCaracter homer = new CartoonCaracter("Homer");

 // Instead of writing ... 
 assertThat(homer.toString()).isEqualTo("Homer");
 // ... you can simply write: 
 assertThat(homer).hasToString("Homer");
```
 Specified by:
 
 hasToString in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 hasToString in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 expectedToString - the expected String description of actual.
 
 Returns:
 this assertion object.
 - is
```
public SELF is(Condition<? super ACTUAL> condition)
```
 Description copied from class: AbstractAssert
 
 Verifies that the actual value satisfies the given condition. This method is an alias for ExtensionPoints.has(Condition).
 
 Specified by:
 
 is in interface ExtensionPoints<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 is in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this ExtensionPoints object.
 See Also:
 ExtensionPoints.is(Condition)
 - isEqualTo
```
public SELF isEqualTo(Object expected)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is equal to the given one.
 Example:
```
 // assertions will pass
 assertThat("abc").isEqualTo("abc");
 assertThat(new HashMap<String, Integer>()).isEqualTo(new HashMap<String, Integer>());
 
 // assertions will fail
 assertThat("abc").isEqualTo("123");
 assertThat(new ArrayList<String>()).isEqualTo(1);
```
 Specified by:
 
 isEqualTo in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isEqualTo in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 expected - the given value to compare the actual value to.
 
 Returns:
 this assertion object.
 - isExactlyInstanceOf
```
public SELF isExactlyInstanceOf(Class<?> type)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is exactly an instance of the given type.
 Example:
```
 // assertions will pass
 assertThat("abc").isExactlyInstanceOf(String.class);
 assertThat(new ArrayList<String>()).isExactlyInstanceOf(ArrayList.class);
 assertThat(new HashMap<String, Integer>()).isExactlyInstanceOf(HashMap.class);
 
 // assertions will fail
 assertThat(1).isExactlyInstanceOf(String.class);
 assertThat(new ArrayList<String>()).isExactlyInstanceOf(List.class);
 assertThat(new HashMap<String, Integer>()).isExactlyInstanceOf(Map.class);
```
 Specified by:
 
 isExactlyInstanceOf in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isExactlyInstanceOf in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 type - the type to check the actual value against.
 
 Returns:
 this assertion object.
 - isIn
```
public SELF isIn(Iterable<?> values)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is present in the given values.
 Example:
```
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertion will pass:
 assertThat(nenya).isIn(elvesRings);
 
 // assertion will fail:
 assertThat(oneRing).isIn(elvesRings);
```
 Specified by:
 
 isIn in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isIn in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 values - the given iterable to search the actual value in.
 
 Returns:
 this assertion object.
 - isIn
```
public SELF isIn(Object... values)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is present in the given array of values.
 Example:
```
 Ring[] elvesRings = new Ring[] { vilya, nenya, narya };
 
 // assertion will pass:
 assertThat(nenya).isIn(elvesRings);
 
 // assertion will fail:
 assertThat(oneRing).isIn(elvesRings);
```
 Specified by:
 
 isIn in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isIn in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 values - the given array to search the actual value in.
 
 Returns:
 this assertion object.
 - isInstanceOf
```
public SELF isInstanceOf(Class<?> type)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is an instance of the given type.
 Example:
```
 // assertions will pass
 assertThat("abc").isInstanceOf(String.class);
 assertThat(new HashMap<String, Integer>()).isInstanceOf(HashMap.class);
 assertThat(new HashMap<String, Integer>()).isInstanceOf(Map.class);
 
 // assertions will fail
 assertThat(1).isInstanceOf(String.class);
 assertThat(new ArrayList<String>()).isInstanceOf(LinkedList.class);
```
 Specified by:
 
 isInstanceOf in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isInstanceOf in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 type - the type to check the actual value against.
 
 Returns:
 this assertion object.
 - isInstanceOfAny
```
public SELF isInstanceOfAny(Class<?>... types)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is an instance of any of the given types.
 Example:
```
 // assertions will pass
 assertThat("abc").isInstanceOfAny(String.class, Integer.class);
 assertThat(new ArrayList<String>()).isInstanceOfAny(LinkedList.class, ArrayList.class);
 assertThat(new HashMap<String, Integer>()).isInstanceOfAny(TreeMap.class, Map.class);
 
 // assertions will fail
 assertThat(1).isInstanceOfAny(Double.class, Float.class);
 assertThat(new ArrayList<String>()).isInstanceOfAny(LinkedList.class, Vector.class);
```
 Specified by:
 
 isInstanceOfAny in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isInstanceOfAny in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 types - the types to check the actual value against.
 
 Returns:
 this assertion object.
 - isNot
```
public SELF isNot(Condition<? super ACTUAL> condition)
```
 Description copied from class: AbstractAssert
 
 Verifies that the actual value does not satisfy the given condition. This method is an alias for ExtensionPoints.doesNotHave(Condition).
 
 Specified by:
 
 isNot in interface ExtensionPoints<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNot in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 condition - the given condition.
 
 Returns:
 this ExtensionPoints object.
 See Also:
 ExtensionPoints.isNot(Condition)
 - isNotEqualTo
```
public SELF isNotEqualTo(Object other)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is not equal to the given one.
 Example:
```
 // assertions will pass
 assertThat("abc").isNotEqualTo("123");
 assertThat(new ArrayList<String>()).isNotEqualTo(1);
 
 // assertions will fail
 assertThat("abc").isNotEqualTo("abc");
 assertThat(new HashMap<String, Integer>()).isNotEqualTo(new HashMap<String, Integer>());
```
 Specified by:
 
 isNotEqualTo in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotEqualTo in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 other - the given value to compare the actual value to.
 
 Returns:
 this assertion object.
 - isNotExactlyInstanceOf
```
public SELF isNotExactlyInstanceOf(Class<?> type)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is not exactly an instance of given type.
 Example:
```
 // assertions will pass
 assertThat(1).isNotExactlyInstanceOf(String.class);
 assertThat(new ArrayList<String>()).isNotExactlyInstanceOf(List.class);
 assertThat(new HashMap<String, Integer>()).isNotExactlyInstanceOf(Map.class);
 
 // assertions will fail
 assertThat("abc").isNotExactlyInstanceOf(String.class);
 assertThat(new ArrayList<String>()).isNotExactlyInstanceOf(ArrayList.class);
 assertThat(new HashMap<String, Integer>()).isNotExactlyInstanceOf(HashMap.class);
```
 Specified by:
 
 isNotExactlyInstanceOf in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotExactlyInstanceOf in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 type - the type to check the actual value against.
 
 Returns:
 this assertion object.
 - isNotIn
```
public SELF isNotIn(Iterable<?> values)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is not present in the given values.
 Example:
```
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);
 
 // assertion will pass:
 assertThat(oneRing).isNotIn(elvesRings);
 
 // assertion will fail:
 assertThat(nenya).isNotIn(elvesRings);
```
 Specified by:
 
 isNotIn in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotIn in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 values - the given iterable to search the actual value in.
 
 Returns:
 this assertion object.
 - isNotIn
```
public SELF isNotIn(Object... values)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is not present in the given array of values.
 Example:
```
 Ring[] elvesRings = new Ring[] { vilya, nenya, narya };
 
 // assertion will pass:
 assertThat(oneRing).isNotIn(elvesRings);
 
 // assertion will fail:
 assertThat(nenya).isNotIn(elvesRings);
```
 Specified by:
 
 isNotIn in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotIn in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 values - the given array to search the actual value in.
 
 Returns:
 this assertion object.
 - isNotInstanceOf
```
public SELF isNotInstanceOf(Class<?> type)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is not an instance of the given type.
 Example:
```
 // assertions will pass
 assertThat(1).isNotInstanceOf(Double.class);
 assertThat(new ArrayList<String>()).isNotInstanceOf(LinkedList.class);
 
 // assertions will fail
 assertThat("abc").isNotInstanceOf(String.class);
 assertThat(new HashMap<String, Integer>()).isNotInstanceOf(HashMap.class);
 assertThat(new HashMap<String, Integer>()).isNotInstanceOf(Map.class);
```
 Specified by:
 
 isNotInstanceOf in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotInstanceOf in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 type - the type to check the actual value against.
 
 Returns:
 this assertion object.
 - isNotInstanceOfAny
```
public SELF isNotInstanceOfAny(Class<?>... types)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is not an instance of any of the given types.
 Example:
```
 // assertions will pass
 assertThat(1).isNotInstanceOfAny(Double.class, Float.class);
 assertThat(new ArrayList<String>()).isNotInstanceOfAny(LinkedList.class, Vector.class);
 
 // assertions will fail
 assertThat(1).isNotInstanceOfAny(Double.class, Integer.class);
 assertThat(new ArrayList<String>()).isNotInstanceOfAny(LinkedList.class, ArrayList.class);
 assertThat(new HashMap<String, Integer>()).isNotInstanceOfAny(TreeMap.class, Map.class);
```
 Specified by:
 
 isNotInstanceOfAny in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotInstanceOfAny in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 types - the types to check the actual value against.
 
 Returns:
 this assertion object.
 - isNotOfAnyClassIn
```
public SELF isNotOfAnyClassIn(Class<?>... types)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value type is not in given types.
 Example:
```
 // assertions will pass
 assertThat(new HashMap<String, Integer>()).isNotOfAnyClassIn(Map.class, TreeMap.class);
 assertThat(new ArrayList<String>()).isNotOfAnyClassIn(LinkedList.class, List.class);
 
 // assertions will fail
 assertThat(new HashMap<String, Integer>()).isNotOfAnyClassIn(HashMap.class, TreeMap.class);
 assertThat(new ArrayList<String>()).isNotOfAnyClassIn(ArrayList.class, LinkedList.class);
```
 Specified by:
 
 isNotOfAnyClassIn in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotOfAnyClassIn in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 types - the types to check the actual value against.
 
 Returns:
 this assertion object.
 - isNotNull
```
public SELF isNotNull()
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is not null.
 Example:
```
 // assertion will pass
 assertThat("abc").isNotNull();
 assertThat(new HashMap<String, Integer>()).isNotNull();
 
 // assertion will fail
 String value = null;
 assertThat(value).isNotNull();
```
 Specified by:
 
 isNotNull in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotNull in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Returns:
 this assertion object.
 - isNotSameAs
```
public SELF isNotSameAs(Object other)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is not the same as the given one, ie using == comparison.
 Example:
```
 // Name is a class with first and last fields, two Names are equals if both first and last are equals.
 Name tyrion = new Name("Tyrion", "Lannister");
 Name alias = tyrion;
 Name clone = new Name("Tyrion", "Lannister");
 
 // assertions succeed:
 assertThat(clone).isNotSameAs(tyrion)
 .isEqualTo(tyrion);
 
 // assertion fails:
 assertThat(alias).isNotSameAs(tyrion);
```
 Specified by:
 
 isNotSameAs in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isNotSameAs in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 other - the given value to compare the actual value to.
 
 Returns:
 this assertion object.
 - isOfAnyClassIn
```
public SELF isOfAnyClassIn(Class<?>... types)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value type is in given types.
 Example:
```
 // assertions will pass
 assertThat(new HashMap<String, Integer>()).isOfAnyClassIn(HashMap.class, TreeMap.class);
 assertThat(new ArrayList<String>()).isOfAnyClassIn(ArrayList.class, LinkedList.class);
 
 // assertions will fail
 assertThat(new HashMap<String, Integer>()).isOfAnyClassIn(TreeMap.class, Map.class);
 assertThat(new ArrayList<String>()).isOfAnyClassIn(LinkedList.class, List.class);
```
 Specified by:
 
 isOfAnyClassIn in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isOfAnyClassIn in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 types - the types to check the actual value against.
 
 Returns:
 this assertion object.
 - isSameAs
```
public SELF isSameAs(Object expected)
```
 Description copied from class: AbstractAssert
 Verifies that the actual value is the same as the given one, ie using == comparison.
 Example:
```
 // Name is a class with first and last fields, two Names are equals if both first and last are equals.
 Name tyrion = new Name("Tyrion", "Lannister");
 Name alias = tyrion;
 Name clone = new Name("Tyrion", "Lannister");
 
 // assertions succeed:
 assertThat(tyrion).isSameAs(alias)
 .isEqualTo(clone);
 
 // assertion fails:
 assertThat(tyrion).isSameAs(clone);
```
 Specified by:
 
 isSameAs in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 isSameAs in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 expected - the given value to compare the actual value to.
 
 Returns:
 this assertion object.
 - overridingErrorMessage
```
public SELF overridingErrorMessage(String newErrorMessage,
 Object... args)
```
 Description copied from class: AbstractAssert
 Overrides AssertJ default error message by the given one.
 The new error message is built using String.format(String, Object...) if you provide args parameter (if you don't, the error message is taken as it is).
 Example :
```
assertThat(player.isRookie()).overridingErrorMessage("Expecting Player <%s> to be a rookie but was not.", player)
 .isTrue();
```
 Overrides:
 
 overridingErrorMessage in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 newErrorMessage - the error message that will replace the default one provided by Assertj.
 args - the args used to fill error message as in String.format(String, Object...).
 
 Returns:
 this assertion object.
 - usingDefaultComparator
```
public SELF usingDefaultComparator()
```
 Description copied from class: AbstractAssert
 
 Revert to standard comparison for incoming assertion checks.
 This method should be used to disable a custom comparison strategy set by calling Assert.usingComparator(Comparator).
 
 Specified by:
 
 usingDefaultComparator in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 usingDefaultComparator in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Returns:
 this assertion object.
 - usingComparator
```
public SELF usingComparator(Comparator<? super ACTUAL> customComparator)
```
 Description copied from class: AbstractAssert
 Use given custom comparator instead of relying on actual type A equals method for incoming assertion checks.
 Custom comparator is bound to assertion instance, meaning that if a new assertion is created, it will use default comparison strategy. Examples :
```
 // frodo and sam are instances of Character with Hobbit race (obviously :).
 // raceComparator implements Comparator<Character> 
 assertThat(frodo).usingComparator(raceComparator).isEqualTo(sam);
```
 Specified by:
 
 usingComparator in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 usingComparator in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 customComparator - the comparator to use for incoming assertion checks.
 
 Returns:
 this assertion object.
 - withFailMessage
```
public SELF withFailMessage(String newErrorMessage,
 Object... args)
```
 Description copied from class: AbstractAssert
 
 Alternative method for AbstractAssert.overridingErrorMessage(java.lang.String, java.lang.Object...)
 
 Overrides:
 
 withFailMessage in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Parameters:
 newErrorMessage - the error message that will replace the default one provided by Assertj.
 args - the args used to fill error message as in String.format(String, Object...).
 
 Returns:
 this assertion object.
 - withThreadDumpOnError
```
public SELF withThreadDumpOnError()
```
 Description copied from class: AbstractAssert
 In case of an assertion error, a thread dump will be printed to System.err.
 Example :
```
 assertThat("Messi").withThreadDumpOnError().isEqualTo("Ronaldo");
```
 will print a thread dump, something similar to this:
```
"JDWP Command Reader"
 	java.lang.Thread.State: RUNNABLE

 "JDWP Event Helper Thread"
 	java.lang.Thread.State: RUNNABLE

 "JDWP Transport Listener: dt_socket"
 	java.lang.Thread.State: RUNNABLE

 "Signal Dispatcher"
 	java.lang.Thread.State: RUNNABLE

 "Finalizer"
 	java.lang.Thread.State: WAITING
 		at java.lang.Object.wait(Native Method)
 		at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
 		at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
 		at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:189)

 "Reference Handler"
 	java.lang.Thread.State: WAITING
 		at java.lang.Object.wait(Native Method)
 		at java.lang.Object.wait(Object.java:503)
 		at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)

 "main"
 	java.lang.Thread.State: RUNNABLE
 		at sun.management.ThreadImpl.dumpThreads0(Native Method)
 		at sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:446)
 		at org.assertj.core.internal.Failures.threadDumpDescription(Failures.java:193)
 		at org.assertj.core.internal.Failures.printThreadDumpIfNeeded(Failures.java:141)
 		at org.assertj.core.internal.Failures.failure(Failures.java:91)
 		at org.assertj.core.internal.Objects.assertEqual(Objects.java:314)
 		at org.assertj.core.api.AbstractAssert.isEqualTo(AbstractAssert.java:198)
 		at org.assertj.examples.ThreadDumpOnErrorExample.main(ThreadDumpOnErrorExample.java:28)
```
 Specified by:
 
 withThreadDumpOnError in interface Assert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Overrides:
 
 withThreadDumpOnError in class AbstractAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>>
 
 Returns:
 this assertion object.
 - size
```
public AbstractIterableSizeAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT> size()
```
 Returns an Assert object that allows performing assertions on the size of the Iterable under test.
 Once this method is called, the object under test is no longer the Iterable but its size, to perform assertions on the Iterable, call AbstractIterableSizeAssert.returnToIterable().
 Example:
```
 Iterable<Ring> elvesRings = newArrayList(vilya, nenya, narya);

 // assertion will pass:
 assertThat(elvesRings).size().isGreaterThan(1)
 .isLessThanOrEqualTo(3)
 .returnToIterable().contains(narya)
 .doesNotContain(oneRing);

 // assertion will fail:
 assertThat(elvesRings).size().isGreaterThan(3);
```
 Returns:
 AbstractIterableSizeAssert built with the Iterable's size.
 
 Throws:
 
 NullPointerException - if the given Iterable is null.

Class AbstractIterableAssert<SELF extends AbstractIterableAssert<SELF,ACTUAL,ELEMENT,ELEMENT_ASSERT>,ACTUAL extends Iterable<? extends ELEMENT>,ELEMENT,ELEMENT_ASSERT extends AbstractAssert<ELEMENT_ASSERT,ELEMENT>>

Field Summary

Fields inherited from class org.assertj.core.api.AbstractAssert

Constructor Summary

Method Summary

Methods inherited from class org.assertj.core.api.AbstractAssert

Methods inherited from class java.lang.Object

Field Detail

iterables

Constructor Detail

AbstractIterableAssert

Method Detail

toLazyIterable

newListAssertInstance

isNullOrEmpty

isEmpty

isNotEmpty

hasSize

hasSameSizeAs

hasSameSizeAs

contains

containsOnly

containsOnlyOnce

containsOnlyNulls

containsExactly

containsExactlyInAnyOrder

containsExactlyInAnyOrderElementsOf

isSubsetOf

isSubsetOf

containsSequence

containsSequence

doesNotContainSequence

doesNotContainSequence

containsSubsequence

containsSubsequence

doesNotContainSubsequence

doesNotContainSubsequence

doesNotContain

doesNotContainAnyElementsOf

doesNotHaveDuplicates

startsWith

endsWith

endsWith

containsNull

doesNotContainNull

are

areNot

have

doNotHave

areAtLeastOne

areAtLeast

areAtMost

areExactly

haveAtLeastOne

haveAtLeast

haveAtMost

haveExactly

hasAtLeastOneElementOfType

hasOnlyElementsOfType

doesNotHaveAnyElementsOfTypes

hasOnlyElementsOfTypes

containsAll

usingElementComparator

usingDefaultElementComparator

containsAnyOf

containsAnyElementsOf

extracting

extractingResultOf

extractingResultOf

extracting

extracting

extracting

flatExtracting

flatExtracting

flatExtracting

containsExactlyElementsOf

containsOnlyElementsOf

hasSameElementsAs

usingComparatorForElementFieldsWithNames

usingComparatorForElementFieldsWithType