Package de.cuioss.test.valueobjects.contract

Class EqualsAndHashcodeContractImpl

java.lang.Object

de.cuioss.test.valueobjects.contract.EqualsAndHashcodeContractImpl

All Implemented Interfaces:

ObjectTestContract

public class EqualsAndHashcodeContractImpl
extends Object
implements ObjectTestContract

Helper class providing base functionality for test for the Object.equals(Object) and Object.hashCode() variants of classes.

Author:

Oliver Wolff

Constructor Summary

Constructors

Constructor	Description
EqualsAndHashcodeContractImpl()

Method Summary

Modifier and Type	Method	Description
static void	assertBasicContractOnEquals(Object underTest)	Verify object has implemented Object.equals(Object) method.
static void	assertBasicContractOnHashCode(Object underTest)	Verify object has implemented Object.hashCode() method.
void	assertContract(ParameterizedInstantiator<?> instantiator, ObjectTestConfig objectTestConfig)	Checks the concrete contract.

Methods inherited from class java.lang.Object

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

Constructor Details

EqualsAndHashcodeContractImpl

public EqualsAndHashcodeContractImpl()

Method Details

assertContract

public void assertContract(ParameterizedInstantiator<?> instantiator,
 ObjectTestConfig objectTestConfig)

Description copied from interface: ObjectTestContract

Checks the concrete contract.

Specified by:

assertContract in interface ObjectTestContract

Parameters:

instantiator - must not be null. The actual type of the Object is not of interest, because we check Object contracts

objectTestConfig - optional configuration configuring the tests

assertBasicContractOnEquals

public static void assertBasicContractOnEquals(Object underTest)

Verify object has implemented Object.equals(Object) method. In addition it checks whether the basic functionality like

• equals(null) will be 'false'
• equals(new Object()) will be 'false'
• underTest.equals(underTest) will be 'true'

is implemented correctly

Parameters:

underTest - object under test

assertBasicContractOnHashCode

public static void assertBasicContractOnHashCode(Object underTest)

Verify object has implemented Object.hashCode() method.

Parameters:

underTest - object under test