TestMultiplexerPipe.java

/**
 * Copyright 2015 StreamSets Inc.
 *
 * Licensed under 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 com.streamsets.datacollector.runner;

import com.streamsets.datacollector.main.RuntimeInfo;

import com.streamsets.datacollector.util.Configuration;
import org.junit.Test;
import org.mockito.Mockito;

import java.util.List;

import static org.hamcrest.collection.IsIterableContainingInOrder.contains;
import static org.mockito.Matchers.argThat;
import static org.mockito.Matchers.eq;


public class TestMultiplexerPipe {

  @Test
  @SuppressWarnings("unchecked")
  public void testMultiplexerPipeOneLaneWithEvents() throws Exception {
    PipelineRunner pipelineRunner = Mockito.mock(PipelineRunner.class);
    Mockito.when(pipelineRunner.getRuntimeInfo()).thenReturn(Mockito.mock(RuntimeInfo.class));

    Pipeline pipeline = new Pipeline.Builder(MockStages.createStageLibrary(), new Configuration(), "name", "name", "0", MockStages.userContext(),
                                             MockStages.createPipelineConfigurationSourceTargetWithEventsProcessed()).build(pipelineRunner);
    MultiplexerPipe pipe = (MultiplexerPipe) pipeline.getRunners().get(0).get(1);
    PipeBatch pipeBatch = Mockito.mock(FullPipeBatch.class);
    pipe.process(pipeBatch);
    Mockito.verify(pipeBatch, Mockito.times(1)).moveLane(eq("t::o"), eq("t--t::m"));
    Mockito.verify(pipeBatch, Mockito.times(1)).moveLane(eq("e::o"), eq("e--e::m"));
    Mockito.verifyNoMoreInteractions(pipeBatch);
  }

  @Test
  @SuppressWarnings("unchecked")
  public void testMultiplexerPipeTwoLane() throws Exception {
    PipelineRunner pipelineRunner = Mockito.mock(PipelineRunner.class);
    Mockito.when(pipelineRunner.getRuntimeInfo()).thenReturn(Mockito.mock(RuntimeInfo.class));
    Pipeline pipeline = new Pipeline.Builder(MockStages.createStageLibrary(),new Configuration(), "name", "name", "0", MockStages.userContext(),
                                             MockStages.createPipelineConfigurationSourceTwoTargets()).build(pipelineRunner);
    MultiplexerPipe pipe = (MultiplexerPipe) pipeline.getRunners().get(0).get(1);
    PipeBatch pipeBatch = Mockito.mock(FullPipeBatch.class);
    pipe.process(pipeBatch);
    Mockito.verify(pipeBatch, Mockito.times(1)).moveLaneCopying(Mockito.anyString(), Mockito.anyList());
    Mockito.verifyNoMoreInteractions(pipeBatch);
  }

  @Test
  @SuppressWarnings("unchecked")
  public void testMultiplexerPipeTwoLaneWithTwoEventLanes() throws Exception {
    PipelineRunner pipelineRunner = Mockito.mock(PipelineRunner.class);
    Mockito.when(pipelineRunner.getRuntimeInfo()).thenReturn(Mockito.mock(RuntimeInfo.class));
    Pipeline pipeline = new Pipeline.Builder(MockStages.createStageLibrary(),new Configuration(), "name", "name", "0", MockStages.userContext(),
                                             MockStages.createPipelineConfigurationSourceTwoTargetsTwoEvents()).build(pipelineRunner);
    MultiplexerPipe pipe = (MultiplexerPipe) pipeline.getRunners().get(0).get(1);
    PipeBatch pipeBatch = Mockito.mock(FullPipeBatch.class);
    pipe.process(pipeBatch);
    Mockito.verify(pipeBatch, Mockito.times(1)).moveLaneCopying(eq("t::o"), (List<String>)argThat(contains("t--t1::m", "t--t2::m")));
    Mockito.verify(pipeBatch, Mockito.times(1)).moveLaneCopying(eq("e::o"), (List<String>)argThat(contains("e--t3::m", "e--t4::m")));
    Mockito.verifyNoMoreInteractions(pipeBatch);
  }

}