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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.sca.core.invocation.impl;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.Arrays;
import java.util.List;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class PhaseSorterTestCase {
private PhaseSorter<String> graph;
@Before
public void setUp() throws Exception {
graph = new PhaseSorter<String>();
}
@Test
public void testSort() {
graph.addEdge("a", "b");
graph.addEdge("a", "c");
graph.addEdge("c", "d");
graph.addEdge("b", "c");
List<String> order = graph.topologicalSort(true);
assertEquals(Arrays.asList("a", "b", "c", "d"), order);
assertTrue(!graph.getVertices().isEmpty());
graph.addEdge("d", "a");
try {
order = graph.topologicalSort(true);
assertTrue("Should have failed", false);
} catch (IllegalArgumentException e) {
assertTrue(true);
}
graph.removeEdge("d", "a");
order = graph.topologicalSort(false);
assertEquals(Arrays.asList("a", "b", "c", "d"), order);
assertTrue(graph.getVertices().isEmpty());
}
@After
public void tearDown() throws Exception {
}
}
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