org.unitils.mock.argumentmatcher.impl.NullArgumentMatcher Maven / Gradle / Ivy
/*
* Copyright 2008, Unitils.org
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.unitils.mock.argumentmatcher.impl;
import org.unitils.mock.argumentmatcher.ArgumentMatcher;
/**
* A matcher that will check whether an argument is null.
*
* @author Kenny Claes
* @author Filip Neven
* @author Tim Ducheyne
*/
public class NullArgumentMatcher implements ArgumentMatcher {
/**
* Returns true if the given object is not null, false otherwise.
*
* The argumentAtInvocationTime is a copy (deep clone) of the arguments at the time of
* the invocation. This way the original values can still be used later-on even when changes
* occur to the original values (pass-by-value vs pass-by-reference).
*
* @param argument The argument that were used by reference, not null
* @param argumentAtInvocationTime Copy of the argument, taken at the time that the invocation was performed, not null
* @return True when passed object matches, false otherwise.
*/
public boolean matches(Object argument, Object argumentAtInvocationTime) {
return argument == null;
}
}