/*
* Copyright (c) 2010-2014. Axon Framework
*
* 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.axonframework.test.matchers;
import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
/**
* Matcher that matches against a {@code null} or {@code void} value. Can be used to make sure no trailing
* events remain when using an Exact Sequence Matcher.
*
* @param <T> The generic type of the mather
* @author Allard Buijze
* @since 1.1
*/
public class NullOrVoidMatcher<T> extends BaseMatcher<T> {
@Override
public boolean matches(Object item) {
return item == null || Void.class.equals(item);
}
@Override
public void describeTo(Description description) {
description.appendText("<nothing>");
}
}