Package com.google.common.testing
Class EquivalenceTester<T>
java.lang.Object
com.google.common.testing.EquivalenceTester<T>
Tester for
Equivalence
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
the EqualsTester
. It includes an extra test against an instance of an
arbitrary class without having to explicitly add another equivalence group.
- Since:
- 10.0 TODO(gak): turn this into a test suite so that each test can fail independently
-
Method Summary
Modifier and TypeMethodDescriptionaddEquivalenceGroup
(Iterable<T> group) 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
(Equivalence<? super T> equivalence) test()
Run tests on equivalence methods, throwing a failure on an invalid test
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Method Details
-
of
-
addEquivalenceGroup
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. -
addEquivalenceGroup
-
test
Run tests on equivalence methods, throwing a failure on an invalid test
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