CloseSuppressorTest.java

/*
 * Copyright 2013, 2014 Deutsche Nationalbibliothek
 *
 * 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.culturegraph.mf.flowcontrol;

import org.culturegraph.mf.framework.ObjectReceiver;
import org.junit.Test;
import org.mockito.Mockito;

/**
 * Tests for class {@link CloseSuppressor}.
 *
 * @author Markus Geipel
 *
 */
public final class CloseSuppressorTest {

	@Test
	public void testSuppression() {
		final CloseSuppressor<Object> supressor = new CloseSuppressor<>(3);
		final ObjectReceiver<Object> receiver = Mockito.mock(ObjectReceiver.class);
		supressor.setReceiver(receiver);
		supressor.closeStream();
		supressor.closeStream();
		Mockito.verifyZeroInteractions(receiver);
		supressor.closeStream();
		Mockito.verify(receiver).closeStream();
		supressor.closeStream();
		Mockito.verifyNoMoreInteractions(receiver);
	}

}