Package io.airlift.testing

Class EquivalenceTester

java.lang.Object

io.airlift.testing.EquivalenceTester

public final class EquivalenceTester
extends Object

Equivalence tester streamlining tests of Object.equals(Object) and Object.hashCode() methods. Using this tester makes it easy to verify that Object.equals(Object) is indeed an equivalence relation (reflexive, symmetric and transitive). It also verifies that equality between two objects implies hash code equality, as required by the Object.hashCode() contract.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	EquivalenceTester.ComparisonCheck<T extends Comparable<T>>
static class	EquivalenceTester.ElementCheckFailure
static class	EquivalenceTester.EquivalenceCheck<T>
static enum	EquivalenceTester.EquivalenceFailureType
static class	EquivalenceTester.InitialComparisonCheck
static class	EquivalenceTester.PairCheckFailure

Method Summary

Modifier and Type	Method	Description
static void	check(Collection<?>... equivalenceClasses)	Deprecated.
static <T extends Comparable<T>> void	checkComparison(Iterable<T> initialGroup, Iterable<T> greaterGroup, Iterable<T>... moreGreaterGroup)	Deprecated.
static EquivalenceTester.InitialComparisonCheck	comparisonTester()
static <T> EquivalenceTester.EquivalenceCheck<T>	equivalenceTester()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

check

@Deprecated
public static void check(Collection<?>... equivalenceClasses)

Deprecated.

equivalenceTester

public static <T>
EquivalenceTester.EquivalenceCheck<T> equivalenceTester()

checkComparison

@SafeVarargs
@Deprecated
public static <T extends Comparable<T>> void checkComparison(Iterable<T> initialGroup,
 Iterable<T> greaterGroup,
 Iterable<T>... moreGreaterGroup)

Deprecated.

comparisonTester

public static EquivalenceTester.InitialComparisonCheck comparisonTester()