AbstractAssert (AssertJ fluent assertions 2.9.0 API)

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

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.

All Implemented Interfaces:

Assert<SELF,ACTUAL>, Descriptable<SELF>, ExtensionPoints<SELF,ACTUAL>

Direct Known Subclasses:

AbstractBooleanAssert, AbstractCharSequenceAssert, AbstractClassAssert, AbstractDateAssert, AbstractEnumerableAssert, AbstractFileAssert, AbstractFutureAssert, AbstractInputStreamAssert, AbstractIterableAssert, AbstractObjectArrayAssert, AbstractObjectAssert, AbstractUriAssert, AbstractUrlAssert, AtomicBooleanAssert, AtomicIntegerAssert, AtomicLongAssert, AtomicReferenceArrayAssert, AtomicReferenceAssert
```
public abstract class AbstractAssert<SELF extends AbstractAssert<SELF,ACTUAL>,ACTUAL>
extends Object
implements Assert<SELF,ACTUAL>
```
Base class for all assertions.

Author:

Alex Ruiz, Joel Costigliola, Mikhail Mazursky, Nicolas François

Field Summary

Fields
Modifier and Type Field and Description

protected ACTUAL actual

WritableAssertionInfo info

protected SELF myself

Fields
Modifier and Type	Field and Description
`protected ACTUAL`	`actual`
`WritableAssertionInfo`	`info`
`protected SELF`	`myself`

Constructor Summary

Constructors
Constructor and Description

AbstractAssert(ACTUAL actual, Class<?> selfType)

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

Method Summary

Methods
Modifier and Type	Method and Description
`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.
`AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>>`	`asList()` Verifies that the actual value is an instance of List, and returns a list assertion, to allow chaining of list-specific assertions from this call.
`AbstractCharSequenceAssert<?,String>`	`asString()` Verifies that the actual value is an instance of String, and returns a String assertion, to allow chaining of String-specific assertions from this call.
`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.
`String`	`descriptionText()` The description of this assertion set with `describedAs(String, Object...)` or `describedAs(Description)`.
`SELF`	`doesNotHave(Condition<? super ACTUAL> condition)` Verifies that the actual value does not satisfy the given condition.
`SELF`	`doesNotHaveSameClassAs(Object other)` Verifies that the actual value does not have the same class as the given object.
`boolean`	`equals(Object obj)` Deprecated. use `isEqualTo(java.lang.Object)` instead
`protected void`	`failWithMessage(String errorMessage, Object... arguments)` Utility method to ease writing custom assertions classes using `String.format(String, Object...)` specifiers in error message.
`WritableAssertionInfo`	`getWritableAssertionInfo()` Exposes the `WritableAssertionInfo` used in the current assertion for better extensibility. When writing your own assertion class, you can use the returned `WritableAssertionInfo` to change the error message and still keep the description set by the assertion user.
`SELF`	`has(Condition<? super ACTUAL> condition)` Verifies that the actual value satisfies the given condition.
`int`	`hashCode()` Always returns 1.
`SELF`	`hasSameClassAs(Object other)` Verifies that the actual value has the same class as the given object.
`SELF`	`hasSameHashCodeAs(Object other)` Verifies that the actual object has the same hashCode as the given object.
`SELF`	`hasToString(String expectedToString)` Verifies that actual `actual.toString()` is equal to the given `String`.
`protected SELF`	`inBinary()` Use binary object representation instead of standard representation in error messages.
`protected SELF`	`inHexadecimal()` Use hexadecimal object representation instead of standard representation in error messages.
`SELF`	`is(Condition<? super ACTUAL> condition)` Verifies that the actual value satisfies the given condition.
`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`	`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`	`isNull()` Verifies that the actual value is `null`.
`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`	`overridingErrorMessage(String newErrorMessage, Object... args)` Overrides AssertJ default error message by the given one.
`static void`	`setCustomRepresentation(Representation customRepresentation)`
`protected void`	`throwAssertionError(ErrorMessageFactory errorMessageFactory)` Utility method to throw an `AssertionError` given a `BasicErrorMessageFactory`.
`SELF`	`usingComparator(Comparator<? super ACTUAL> customComparator)` Use given custom comparator instead of relying on actual type A equals method for incoming assertion checks.
`SELF`	`usingDefaultComparator()` Revert to standard comparison for incoming assertion checks.
`SELF`	`withFailMessage(String newErrorMessage, Object... args)` Alternative method for `overridingErrorMessage(java.lang.String, java.lang.Object...)`
`SELF`	`withRepresentation(Representation representation)` Use the given `Representation` to describe/represent values in AssertJ error messages.
`SELF`	`withThreadDumpOnError()` In case of an assertion error, a thread dump will be printed to `System.err`.

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

- Field Detail
  - info
```
public final WritableAssertionInfo info
```
  - actual
```
protected final ACTUAL actual
```
  - myself
```
protected final SELF extends AbstractAssert<SELF,ACTUAL> myself
```
- Constructor Detail
  - AbstractAssert
```
public AbstractAssert(ACTUAL actual,
              Class<?> selfType)
```
- Method Detail
  - getWritableAssertionInfo
```
public WritableAssertionInfo getWritableAssertionInfo()
```
    Exposes the WritableAssertionInfo used in the current assertion for better extensibility.
    When writing your own assertion class, you can use the returned WritableAssertionInfo to change the error message and still keep the description set by the assertion user.
    
    Returns:
    the WritableAssertionInfo used in the current assertion
  - failWithMessage
```
protected void failWithMessage(String errorMessage,
                   Object... arguments)
```
    Utility method to ease writing custom assertions classes using String.format(String, Object...) specifiers in error message.
    Moreover, this method honors any description set with as(String, Object...) or overridden error message defined by the user with overridingErrorMessage(String, Object...).
    Example :
```
 public TolkienCharacterAssert hasName(String name) {
   // check that actual TolkienCharacter we want to make assertions on is not null.
   isNotNull();
 
   // check condition
   if (!actual.getName().equals(name)) {
     failWithMessage("Expected character's name to be <%s> but was <%s>", name, actual.getName());
   }
 
   // return the current assertion for method chaining
   return this;
 }
```
    Parameters:
    errorMessage - the error message to format
    arguments - the arguments referenced by the format specifiers in the errorMessage string.
  - throwAssertionError
```
protected void throwAssertionError(ErrorMessageFactory errorMessageFactory)
```
    Utility method to throw an AssertionError given a BasicErrorMessageFactory.
    Instead of writing ...
```
throw Failures.instance().failure(info, ShouldBePresent.shouldBePresent());
```
    ... you can simply write :
```
 throwAssertionError(info, ShouldBePresent.shouldBePresent());
```
    Parameters:
    errorMessageFactory - used to define the error message.
    
    Throws:
    
    AssertionError - with a message corresponding to the given BasicErrorMessageFactory.
  - as
```
public SELF as(String description,
      Object... args)
```
    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 AbstractAssert<SELF,ACTUAL>>
    
    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)
```
    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 AbstractAssert<SELF,ACTUAL>>
    
    Parameters:
    description - the new description to set.
    
    Returns:
    this object.
    See Also:
    Descriptable.describedAs(Description)
  - inHexadecimal
```
protected SELF inHexadecimal()
```
    Use hexadecimal object representation instead of standard representation in error messages.
    It can be useful when comparing UNICODE characters - many unicode chars have duplicate characters assigned, it is thus impossible to find differences from the standard error message:
    With standard message:
```
 assertThat("µµµ").contains("μμμ");

 java.lang.AssertionError:
 Expecting:
   <"µµµ">
 to contain:
   <"μμμ">
```
    With Hexadecimal message:
```
 assertThat("µµµ").inHexadecimal().contains("μμμ");

 java.lang.AssertionError:
 Expecting:
   <"['00B5', '00B5', '00B5']">
 to contain:
   <"['03BC', '03BC', '03BC']">
```
    Returns:
    this assertion object.
  - inBinary
```
protected SELF inBinary()
```
    Use binary object representation instead of standard representation in error messages.
    Example:
```
 assertThat(1).inBinary().isEqualTo(2);

 org.junit.ComparisonFailure:
 Expected :0b00000000_00000000_00000000_00000010
 Actual   :0b00000000_00000000_00000000_00000001
```
    Returns:
    this assertion object.
  - describedAs
```
public SELF describedAs(String description,
               Object... args)
```
    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 AbstractAssert<SELF,ACTUAL>>
    
    Parameters:
    description - the new description to set.
    args - optional parameter if description is a format String.
    
    Returns:
    this object.
  - describedAs
```
public SELF describedAs(Description description)
```
    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 AbstractAssert<SELF,ACTUAL>>
    
    Parameters:
    description - the new description to set.
    
    Returns:
    this object.
  - isEqualTo
```
public SELF isEqualTo(Object expected)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    expected - the given value to compare the actual value to.
    
    Returns:
    this assertion object.
  - isNotEqualTo
```
public SELF isNotEqualTo(Object other)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    other - the given value to compare the actual value to.
    
    Returns:
    this assertion object.
  - isNull
```
public void isNull()
```
    Verifies that the actual value is null.
    Example:
```
 String value = null;
 // assertion will pass
 assertThat(value).isNull();
 
 // assertions will fail
 assertThat("abc").isNull();
 assertThat(new HashMap<String, Integer>()).isNull();
```
    Specified by:
    
    isNull in interface Assert<SELF extends AbstractAssert<SELF,ACTUAL>,ACTUAL>
  - isNotNull
```
public SELF isNotNull()
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Returns:
    this assertion object.
  - isSameAs
```
public SELF isSameAs(Object expected)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    expected - the given value to compare the actual value to.
    
    Returns:
    this assertion object.
  - isNotSameAs
```
public SELF isNotSameAs(Object other)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    other - the given value to compare the actual value to.
    
    Returns:
    this assertion object.
  - isIn
```
public SELF isIn(Object... values)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    values - the given array to search the actual value in.
    
    Returns:
    this assertion object.
  - isNotIn
```
public SELF isNotIn(Object... values)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    values - the given array to search the actual value in.
    
    Returns:
    this assertion object.
  - isIn
```
public SELF isIn(Iterable<?> values)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    values - the given iterable to search the actual value in.
    
    Returns:
    this assertion object.
  - isNotIn
```
public SELF isNotIn(Iterable<?> values)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    values - the given iterable to search the actual value in.
    
    Returns:
    this assertion object.
  - is
```
public SELF is(Condition<? super ACTUAL> condition)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    condition - the given condition.
    
    Returns:
    this ExtensionPoints object.
    See Also:
    ExtensionPoints.is(Condition)
  - isNot
```
public SELF isNot(Condition<? super ACTUAL> condition)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    condition - the given condition.
    
    Returns:
    this ExtensionPoints object.
    See Also:
    ExtensionPoints.isNot(Condition)
  - has
```
public SELF has(Condition<? super ACTUAL> condition)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    condition - the given condition.
    
    Returns:
    this ExtensionPoints object.
    See Also:
    ExtensionPoints.is(Condition)
  - doesNotHave
```
public SELF doesNotHave(Condition<? super ACTUAL> condition)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    condition - the given condition.
    
    Returns:
    this ExtensionPoints object.
    See Also:
    ExtensionPoints.isNot(Condition)
  - isInstanceOf
```
public SELF isInstanceOf(Class<?> type)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    type - the type to check the actual value against.
    
    Returns:
    this assertion object.
  - isInstanceOfAny
```
public SELF isInstanceOfAny(Class<?>... types)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    types - the types to check the actual value against.
    
    Returns:
    this assertion object.
  - isNotInstanceOf
```
public SELF isNotInstanceOf(Class<?> type)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    type - the type to check the actual value against.
    
    Returns:
    this assertion object.
  - isNotInstanceOfAny
```
public SELF isNotInstanceOfAny(Class<?>... types)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    types - the types to check the actual value against.
    
    Returns:
    this assertion object.
  - hasSameClassAs
```
public SELF hasSameClassAs(Object other)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    other - the object to check type against.
    
    Returns:
    this assertion object.
  - hasToString
```
public SELF hasToString(String expectedToString)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    expectedToString - the expected String description of actual.
    
    Returns:
    this assertion object.
  - doesNotHaveSameClassAs
```
public SELF doesNotHaveSameClassAs(Object other)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    other - the object to check type against.
    
    Returns:
    this assertion object.
  - isExactlyInstanceOf
```
public SELF isExactlyInstanceOf(Class<?> type)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    type - the type to check the actual value against.
    
    Returns:
    this assertion object.
  - isNotExactlyInstanceOf
```
public SELF isNotExactlyInstanceOf(Class<?> type)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    type - the type to check the actual value against.
    
    Returns:
    this assertion object.
  - isOfAnyClassIn
```
public SELF isOfAnyClassIn(Class<?>... types)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    types - the types to check the actual value against.
    
    Returns:
    this assertion object.
  - isNotOfAnyClassIn
```
public SELF isNotOfAnyClassIn(Class<?>... types)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    types - the types to check the actual value against.
    
    Returns:
    this assertion object.
  - asList
```
public AbstractListAssert<?,List<? extends Object>,Object,ObjectAssert<Object>> asList()
```
    Verifies that the actual value is an instance of List, and returns a list assertion, to allow chaining of list-specific assertions from this call.
    Example :
```
 Object sortedListAsObject = Arrays.asList(1, 2, 3);

 // assertion will pass
 assertThat(sortedListAsObject).asList().isSorted();
 
 Object unsortedListAsObject = Arrays.asList(3, 1, 2);
 
 // assertion will fail
 assertThat(unsortedListAsObject).asList().isSorted();
```
    Specified by:
    
    asList in interface Assert<SELF extends AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Returns:
    a list assertion object
  - asString
```
public AbstractCharSequenceAssert<?,String> asString()
```
    Verifies that the actual value is an instance of String, and returns a String assertion, to allow chaining of String-specific assertions from this call.
    Example :
```
 Object stringAsObject = "hello world";

 // assertion will pass
 assertThat(stringAsObject).asString().contains("hello");
 
 // assertion will fail
 assertThat(stringAsObject).asString().contains("holla");
```
    Specified by:
    
    asString in interface Assert<SELF extends AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Returns:
    a string assertion object
  - descriptionText
```
public String descriptionText()
```
    The description of this assertion set with describedAs(String, Object...) or describedAs(Description).
    
    Returns:
    the description String representation of this assertion.
  - overridingErrorMessage
```
public SELF overridingErrorMessage(String newErrorMessage,
                          Object... args)
```
    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();
```
    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.
  - withFailMessage
```
public SELF withFailMessage(String newErrorMessage,
                   Object... args)
```
    Alternative method for overridingErrorMessage(java.lang.String, java.lang.Object...)
    
    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.
  - usingComparator
```
public SELF usingComparator(Comparator<? super ACTUAL> customComparator)
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    customComparator - the comparator to use for incoming assertion checks.
    
    Returns:
    this assertion object.
  - usingDefaultComparator
```
public SELF usingDefaultComparator()
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Returns:
    this assertion object.
  - withThreadDumpOnError
```
public SELF withThreadDumpOnError()
```
    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 AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Returns:
    this assertion object.
  - withRepresentation
```
public SELF withRepresentation(Representation representation)
```
    Use the given Representation to describe/represent values in AssertJ error messages.
    The usual way to introduce a new Representation is to extend StandardRepresentation and override any existing toStringOf methods that don't suit you. For example you can control Date formatting by overriding StandardRepresentation.toStringOf(Date)).
    You can also control other types format by overriding StandardRepresentation.toStringOf(Object)) calling your formatting method first and then fall back to the default representation by calling super.toStringOf(Object).
    Example :
```
 private class Example {}

 private class CustomRepresentation extends StandardRepresentation {
 
   // override needed to hook specific formatting  
   @Override
   public String toStringOf(Object o) {
     if (o instanceof Example) return "Example";
     // fall back to default formatting
     return super.toStringOf(o);
   }
   
   // change String representation  
   @Override
   protected String toStringOf(String s) {
     return "$" + s + "$";
   }
 }
 
 // next assertion fails with error : "expected:<[null]> but was:<[Example]>"
 Example example = new Example();
 assertThat(example).withRepresentation(new CustomRepresentation())
                    .isNull(); // example is not null !
 
 // next assertion fails ... 
 assertThat("foo").withRepresentation(new CustomRepresentation())
                  .startsWith("bar");
 // ... with error :
 Expecting:
  <$foo$>
 to start with:
  <$bar$>
```
    Specified by:
    
    withRepresentation in interface Assert<SELF extends AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    representation - Describe/represent values in AssertJ error messages.
    
    Returns:
    this assertion object.
  - equals
```
@Deprecated
public boolean equals(Object obj)
```
    Deprecated. use isEqualTo(java.lang.Object) instead
    
    Specified by:
    
    equals in interface Assert<SELF extends AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Overrides:
    
    equals in class Object
    
    Throws:
    
    UnsupportedOperationException - if this method is called.
  - hashCode
```
public int hashCode()
```
    Always returns 1.
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    1.
  - setCustomRepresentation
```
public static void setCustomRepresentation(Representation customRepresentation)
```
  - hasSameHashCodeAs
```
public SELF hasSameHashCodeAs(Object other)
```
    Verifies that the actual object has the same hashCode as the given object.
    Example:
```
 // assertions will pass
 assertThat(42L).hasSameHashCodeAs(42L);
 assertThat("The Force").hasSameHashCodeAs("The Force");
 assertThat(new Jedi("Yoda", "Blue")).hasSameHashCodeAs(new Jedi("Yoda", "Blue"));

 // assertions will fail
 assertThat(42L).hasSameHashCodeAs(2501L);
 assertThat(null).hasSameHashCodeAs("The Force");
 assertThat("The Force").hasSameHashCodeAs(null);
```
    Specified by:
    
    hasSameHashCodeAs in interface Assert<SELF extends AbstractAssert<SELF,ACTUAL>,ACTUAL>
    
    Parameters:
    other - the object to check hashCode against.
    
    Returns:
    this assertion object.

Class AbstractAssert<SELF extends AbstractAssert<SELF,ACTUAL>,ACTUAL>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

info

actual

myself

Constructor Detail

AbstractAssert

Method Detail

getWritableAssertionInfo

failWithMessage

throwAssertionError

as

as

inHexadecimal

inBinary

describedAs

describedAs

isEqualTo

isNotEqualTo

isNull

isNotNull

isSameAs

isNotSameAs

isIn

isNotIn

isIn

isNotIn

is

isNot

has

doesNotHave

isInstanceOf

isInstanceOfAny

isNotInstanceOf

isNotInstanceOfAny

hasSameClassAs

hasToString

doesNotHaveSameClassAs

isExactlyInstanceOf

isNotExactlyInstanceOf

isOfAnyClassIn

isNotOfAnyClassIn

asList

asString

descriptionText

overridingErrorMessage

withFailMessage

usingComparator

usingDefaultComparator

withThreadDumpOnError

withRepresentation

equals

hashCode

setCustomRepresentation

hasSameHashCodeAs