// 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.scheduler.marathon;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
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.Matchers;
import org.mockito.Mockito;
import com.twitter.heron.proto.scheduler.Scheduler;
import com.twitter.heron.spi.common.Config;
import com.twitter.heron.spi.common.Key;
import com.twitter.heron.spi.packing.PackingPlan;
public class MarathonSchedulerTest {
private static final String TOPOLOGY_CONF = "topology_conf";
private static final String TOPOLOGY_NAME = "topology_name";
private static final String CONTAINER_ID = "container_id";
private static final int CONTAINER_INDEX = 1;
private static final String PACKING_PLAN_ID = "packing_plan_id";
private static final String EXECUTOR_CMD = "executor_cmd";
private static MarathonScheduler scheduler;
@Before
public void setUp() throws Exception {
}
@After
public void after() throws Exception {
}
@BeforeClass
public static void beforeClass() throws Exception {
scheduler = Mockito.spy(MarathonScheduler.class);
Mockito.doReturn(EXECUTOR_CMD).when(scheduler)
.getExecutorCommand(Mockito.anyInt());
}
@AfterClass
public static void afterClass() throws Exception {
scheduler.close();
}
@Test
public void testOnSchedule() throws Exception {
MarathonController controller = Mockito.mock(MarathonController.class);
Mockito.doReturn(controller).when(scheduler).getController();
Mockito.doReturn(TOPOLOGY_CONF)
.when(scheduler).getTopologyConf(Mockito.any(PackingPlan.class));
scheduler.initialize(Mockito.mock(Config.class), Mockito.mock(Config.class));
// Fail to schedule due to null PackingPlan
Assert.assertFalse(scheduler.onSchedule(null));
PackingPlan pplan =
new PackingPlan(
PACKING_PLAN_ID,
new HashSet<PackingPlan.ContainerPlan>()
);
Assert.assertTrue(pplan.getContainers().isEmpty());
// Fail to schedule due to PackingPlan is empty
Assert.assertFalse(scheduler.onSchedule(pplan));
Set<PackingPlan.ContainerPlan> containers = new HashSet<>();
containers.add(Mockito.mock(PackingPlan.ContainerPlan.class));
PackingPlan validPlan =
new PackingPlan(PACKING_PLAN_ID, containers);
// Failed to submit topology due to controller failure
Mockito.doReturn(false).when(controller).submitTopology(Mockito.anyString());
Assert.assertFalse(scheduler.onSchedule(validPlan));
Mockito.verify(controller).submitTopology(Matchers.anyString());
// Succeed to submit topology
Mockito.doReturn(true).when(controller).submitTopology(Mockito.anyString());
Assert.assertTrue(scheduler.onSchedule(validPlan));
Mockito.verify(controller, Mockito.times(2)).submitTopology(Matchers.anyString());
}
@Test
public void testOnRestart() throws Exception {
MarathonController controller = Mockito.mock(MarathonController.class);
Mockito.doReturn(controller).when(scheduler).getController();
scheduler.initialize(Mockito.mock(Config.class), Mockito.mock(Config.class));
// Construct RestartTopologyRequest
Scheduler.RestartTopologyRequest restartTopologyRequest =
Scheduler.RestartTopologyRequest.newBuilder()
.setTopologyName(TOPOLOGY_NAME)
.setContainerIndex(CONTAINER_INDEX)
.build();
// Fail to restart
Mockito.doReturn(false).when(controller).restartApp(Mockito.anyInt());
Assert.assertFalse(scheduler.onRestart(restartTopologyRequest));
Mockito.verify(controller).restartApp(Matchers.anyInt());
// Succeed to restart
Mockito.doReturn(true).when(controller).restartApp(Mockito.anyInt());
Assert.assertTrue(scheduler.onRestart(restartTopologyRequest));
Mockito.verify(controller, Mockito.times(2)).restartApp(Matchers.anyInt());
}
@Test
public void testOnKill() throws Exception {
MarathonController controller = Mockito.mock(MarathonController.class);
Mockito.doReturn(controller).when(scheduler).getController();
scheduler.initialize(Mockito.mock(Config.class), Mockito.mock(Config.class));
// Fail to kill topology
Mockito.doReturn(false).when(controller).killTopology();
Assert.assertFalse(scheduler.onKill(Mockito.any(Scheduler.KillTopologyRequest.class)));
Mockito.verify(controller).killTopology();
// Succeed to kill topology
Mockito.doReturn(true).when(controller).killTopology();
Assert.assertTrue(scheduler.onKill(Mockito.any(Scheduler.KillTopologyRequest.class)));
Mockito.verify(controller, Mockito.times(2)).killTopology();
}
@Test
public void testGetJobLinks() throws Exception {
final String SCHEDULER_URI = "http://marathon.scheduler.uri";
final String JOB_LINK = SCHEDULER_URI + MarathonConstants.JOB_LINK + TOPOLOGY_NAME;
Config mockConfig = Mockito.mock(Config.class);
Mockito.when(mockConfig.getStringValue(MarathonContext.HERON_MARATHON_SCHEDULER_URI))
.thenReturn(SCHEDULER_URI);
Config mockRuntime = Mockito.mock(Config.class);
Mockito.when(mockRuntime.getStringValue(Key.TOPOLOGY_NAME))
.thenReturn(TOPOLOGY_NAME);
scheduler.initialize(mockConfig, mockRuntime);
List<String> links = scheduler.getJobLinks();
Assert.assertEquals(1, links.size());
System.out.println(links.get(0));
System.out.println(JOB_LINK);
Assert.assertTrue(links.get(0).equals(JOB_LINK));
}
}