org.toxos.processassertions.api.internal.IsEmptyCollection Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2014 Tiese Barrell
*
* 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.toxos.processassertions.api.internal;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;
import java.util.Collection;
/**
* Hamcrest {@link Matcher} implementation that provides a convenience for checking a collection is empty.
*
* @author Tiese Barrell
*
*/
public class IsEmptyCollection extends TypeSafeMatcher> {
@Override
protected boolean matchesSafely(final Collection collection) {
return collection.isEmpty();
}
@Override
public void describeTo(final Description description) {
description.appendText("empty");
}
/**
* Returns a {@link IsEmptyCollection} {@link Matcher}.
*
* @return a matcher
*/
public static Matcher> empty() {
return new IsEmptyCollection();
}
}