compiler/test/src/test/java/org/apache/nemo/compiler/frontend/beam/BeamFrontendMLRTest.java

/*
 * 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.frontend.beam;

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.compiler.CompilerTestUtil;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

import static org.junit.Assert.assertEquals;

/**
 * Test Beam frontend.
 */
@RunWith(PowerMockRunner.class)
@PrepareForTest(JobLauncher.class)
public class BeamFrontendMLRTest {
  @Test
  public void testMLRDAG() throws Exception {
    final IRDAG producedDAG = CompilerTestUtil.compileMLRDAG();

    assertEquals(producedDAG.getTopologicalSort(), producedDAG.getTopologicalSort());
    assertEquals(39, producedDAG.getVertices().size());

    final IRVertex vertexX = producedDAG.getTopologicalSort().get(5);
    assertEquals(1, producedDAG.getIncomingEdgesOf(vertexX).size());
    assertEquals(1, producedDAG.getIncomingEdgesOf(vertexX.getId()).size());
    assertEquals(1, producedDAG.getOutgoingEdgesOf(vertexX).size());

    final IRVertex vertexY = producedDAG.getTopologicalSort().get(13);
    assertEquals(1, producedDAG.getIncomingEdgesOf(vertexY).size());
    assertEquals(1, producedDAG.getIncomingEdgesOf(vertexY.getId()).size());
    assertEquals(1, producedDAG.getOutgoingEdgesOf(vertexY).size());
  }
}