| /* |
| * 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.nemo.compiler.optimizer.pass.compiletime.reshaping; |
| |
| import org.apache.nemo.client.JobLauncher; |
| import org.apache.nemo.common.ir.IRDAG; |
| import org.apache.nemo.common.ir.vertex.IRVertex; |
| import org.apache.nemo.common.ir.vertex.utility.TaskSizeSplitterVertex; |
| import org.apache.nemo.compiler.CompilerTestUtil; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.powermock.core.classloader.annotations.PrepareForTest; |
| import org.powermock.modules.junit4.PowerMockRunner; |
| |
| import static junit.framework.TestCase.assertEquals; |
| |
| /** |
| * Test {@link SamplingTaskSizingPass}. |
| */ |
| @RunWith(PowerMockRunner.class) |
| @PrepareForTest(JobLauncher.class) |
| public class SamplingTaskSizingPassTest { |
| private IRDAG compiledDAG; |
| |
| @Before |
| public void setUp() throws Exception { |
| compiledDAG = CompilerTestUtil.compileWordCountDAG(); |
| } |
| |
| /** |
| * Testing method of whether SamplingTaskSizingPass successfully wraps the target vertices without neglecting |
| * any of it. |
| */ |
| @Test |
| public void testSamplingTaskSizingPass() { |
| final IRDAG processedDAG = new SamplingTaskSizingPass().apply(compiledDAG); |
| final int numberOfVerticesBeforePass = compiledDAG.getTopologicalSort().size(); |
| int numberOfVerticesAfterPass = 0; |
| for (IRVertex vertex : processedDAG.getTopologicalSort()) { |
| if (vertex instanceof TaskSizeSplitterVertex) { |
| numberOfVerticesAfterPass += ((TaskSizeSplitterVertex) vertex).getOriginalVertices().size(); |
| } else { |
| numberOfVerticesAfterPass++; |
| } |
| } |
| assertEquals(numberOfVerticesBeforePass, numberOfVerticesAfterPass); |
| } |
| } |