InstanceExecutorTest.java

// Copyright 2016 Twitter. All rights reserved.
//
// 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 com.twitter.heron.simulator.executors;

import org.junit.After;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.mockito.Mockito;

import com.twitter.heron.api.generated.TopologyAPI;
import com.twitter.heron.common.utils.metrics.MetricsCollector;
import com.twitter.heron.common.utils.misc.PhysicalPlanHelper;
import com.twitter.heron.proto.system.PhysicalPlans;
import com.twitter.heron.simulator.instance.IInstance;
import com.twitter.heron.simulator.utils.PhysicalPlanUtil;
import com.twitter.heron.simulator.utils.PhysicalPlanUtilTest;

/**
 * InstanceExecutor Tester.
 */
public class InstanceExecutorTest {
  private static PhysicalPlans.PhysicalPlan plan;
  private static TopologyAPI.Topology topology;
  private static String instanceId;
  private static InstanceExecutor instanceExecutor;

  @BeforeClass
  public static void beforeClass() throws Exception {
    topology = PhysicalPlanUtilTest.getTestTopology();
    plan = PhysicalPlanUtil.getPhysicalPlan(topology);
    instanceId = plan.getInstances(0).getInstanceId();
    instanceExecutor = Mockito.spy(new InstanceExecutor(plan, instanceId));
    Mockito.doReturn(Mockito.mock(IInstance.class)).when(instanceExecutor).createInstance();
  }

  @AfterClass
  public static void afterClass() throws Exception {

  }

  @Before
  public void before() throws Exception {
  }

  @After
  public void after() throws Exception {
  }

  /**
   * Method: getStreamInQueue()
   */
  @Test
  public void testGetStreamInQueue() throws Exception {
    Assert.assertNotNull(instanceExecutor.getStreamInQueue());
    Assert.assertEquals(0, instanceExecutor.getStreamInQueue().size());
  }

  /**
   * Method: getStreamOutQueue()
   */
  @Test
  public void testGetStreamOutQueue() throws Exception {
    Assert.assertNotNull(instanceExecutor.getStreamOutQueue());
    Assert.assertEquals(0, instanceExecutor.getStreamOutQueue().size());
  }

  /**
   * Method: getMetricsOutQueue()
   */
  @Test
  public void testGetMetricsOutQueue() throws Exception {
    Assert.assertNotNull(instanceExecutor.getMetricsOutQueue());
    Assert.assertEquals(0, instanceExecutor.getMetricsOutQueue().size());
  }

  /**
   * Method: getInstanceId()
   */
  @Test
  public void testGetInstanceId() throws Exception {
    Assert.assertEquals(instanceId, instanceExecutor.getInstanceId());
  }

  /**
   * Method: getTaskId()
   */
  @Test
  public void testGetTaskId() throws Exception {
    Assert.assertEquals(plan.getInstances(0).getInfo().getTaskId(), instanceExecutor.getTaskId());
  }

  /**
   * Method: createInstance()
   */
  @Test
  public void testCreateInstance() throws Exception {
    Assert.assertNotNull(instanceExecutor.createInstance());
  }

  /**
   * Method: createPhysicalPlanHelper(PhysicalPlans.PhysicalPlan physicalPlan, String instanceId, MetricsCollector metricsCollector)
   */
  @Test
  public void testCreatePhysicalPlanHelper() throws Exception {
    PhysicalPlanHelper physicalPlanHelper =
        instanceExecutor.createPhysicalPlanHelper(plan, instanceId,
            Mockito.mock(MetricsCollector.class));

    Assert.assertNotNull(physicalPlanHelper.getTopologyContext());
  }
}