Package com.google.common.testing
Class EquivalenceTester<T>
- java.lang.Object
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- com.google.common.testing.EquivalenceTester<T>
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@Beta @GwtCompatible public final class EquivalenceTester<T> extends Object
Tester forEquivalence
relationships between groups of objects.To use, create a new
EquivalenceTester
and add equivalence groups where each group contains objects that are supposed to be equal to each other. Objects of different groups are expected to be unequal. For example:EquivalenceTester.of(someStringEquivalence) .addEquivalenceGroup("hello", "h" + "ello") .addEquivalenceGroup("world", "wor" + "ld") .test();
Note that testing
Object.equals(Object)
is more simply done using theEqualsTester
. It includes an extra test against an instance of an arbitrary class without having to explicitly add another equivalence group.- Since:
- 10.0
- Author:
- Gregory Kick
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description EquivalenceTester<T>
addEquivalenceGroup(Iterable<T> group)
EquivalenceTester<T>
addEquivalenceGroup(T first, T... rest)
Adds a group of objects that are supposed to be equivalent to each other and not equivalent to objects in any other equivalence group added to this tester.static <T> EquivalenceTester<T>
of(com.google.common.base.Equivalence<? super T> equivalence)
EquivalenceTester<T>
test()
Run tests on equivalence methods, throwing a failure on an invalid test
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Method Detail
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of
public static <T> EquivalenceTester<T> of(com.google.common.base.Equivalence<? super T> equivalence)
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addEquivalenceGroup
public EquivalenceTester<T> addEquivalenceGroup(T first, T... rest)
Adds a group of objects that are supposed to be equivalent to each other and not equivalent to objects in any other equivalence group added to this tester.
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addEquivalenceGroup
public EquivalenceTester<T> addEquivalenceGroup(Iterable<T> group)
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test
public EquivalenceTester<T> test()
Run tests on equivalence methods, throwing a failure on an invalid test
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