/*
* Copyright 1999-2015 dangdang.com.
* <p>
* 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.
* </p>
*/
package com.dangdang.ddframe.job.lite.internal.election;
import com.dangdang.ddframe.job.lite.api.strategy.JobInstance;
import com.dangdang.ddframe.job.lite.internal.election.ElectionListenerManager.LeaderElectionJobListener;
import com.dangdang.ddframe.job.lite.internal.schedule.JobRegistry;
import com.dangdang.ddframe.job.lite.internal.schedule.JobScheduleController;
import com.dangdang.ddframe.job.lite.internal.server.ServerService;
import com.dangdang.ddframe.job.lite.internal.server.ServerStatus;
import com.dangdang.ddframe.job.lite.internal.storage.JobNodeStorage;
import com.dangdang.ddframe.job.reg.base.CoordinatorRegistryCenter;
import org.apache.curator.framework.recipes.cache.TreeCacheEvent.Type;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentMatchers;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.unitils.util.ReflectionUtils;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public final class ElectionListenerManagerTest {
@Mock
private CoordinatorRegistryCenter regCenter;
@Mock
private JobScheduleController jobScheduleController;
@Mock
private JobNodeStorage jobNodeStorage;
@Mock
private LeaderService leaderService;
@Mock
private ServerService serverService;
private final ElectionListenerManager electionListenerManager = new ElectionListenerManager(null, "test_job");
@Before
public void setUp() throws NoSuchFieldException {
JobRegistry.getInstance().addJobInstance("test_job", new JobInstance("127.0.0.1@-@0"));
MockitoAnnotations.initMocks(this);
ReflectionUtils.setFieldValue(electionListenerManager, electionListenerManager.getClass().getSuperclass().getDeclaredField("jobNodeStorage"), jobNodeStorage);
ReflectionUtils.setFieldValue(electionListenerManager, "leaderService", leaderService);
ReflectionUtils.setFieldValue(electionListenerManager, "serverService", serverService);
}
@Test
public void assertStart() {
electionListenerManager.start();
verify(jobNodeStorage, times(2)).addDataListener(ArgumentMatchers.<LeaderElectionJobListener>any());
}
@Test
public void assertIsNotLeaderInstancePathAndServerPath() {
electionListenerManager.new LeaderElectionJobListener().dataChanged("/test_job/leader/election/other", Type.NODE_REMOVED, "127.0.0.1");
verify(leaderService, times(0)).electLeader();
}
@Test
public void assertLeaderElectionWhenAddLeaderInstancePath() {
electionListenerManager.new LeaderElectionJobListener().dataChanged("/test_job/leader/election/instance", Type.NODE_ADDED, "127.0.0.1");
verify(leaderService, times(0)).electLeader();
}
@Test
public void assertLeaderElectionWhenRemoveLeaderInstancePathWithoutAvailableServers() {
electionListenerManager.new LeaderElectionJobListener().dataChanged("/test_job/leader/election/instance", Type.NODE_REMOVED, "127.0.0.1");
verify(leaderService, times(0)).electLeader();
}
@Test
public void assertLeaderElectionWhenRemoveLeaderInstancePathWithAvailableServerButJobInstanceIsShutdown() {
when(serverService.isAvailableServer("127.0.0.1")).thenReturn(true);
electionListenerManager.new LeaderElectionJobListener().dataChanged("/test_job/leader/election/instance", Type.NODE_REMOVED, "127.0.0.1");
verify(leaderService, times(0)).electLeader();
}
@Test
public void assertLeaderElectionWhenRemoveLeaderInstancePathWithAvailableServer() {
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
when(serverService.isAvailableServer("127.0.0.1")).thenReturn(true);
electionListenerManager.new LeaderElectionJobListener().dataChanged("/test_job/leader/election/instance", Type.NODE_REMOVED, "127.0.0.1");
verify(leaderService).electLeader();
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertLeaderElectionWhenServerDisableWithoutLeader() {
electionListenerManager.new LeaderElectionJobListener().dataChanged("/test_job/servers/127.0.0.1", Type.NODE_REMOVED, ServerStatus.DISABLED.name());
verify(leaderService, times(0)).electLeader();
}
@Test
public void assertLeaderElectionWhenServerEnableWithLeader() {
when(leaderService.hasLeader()).thenReturn(true);
electionListenerManager.new LeaderElectionJobListener().dataChanged("/test_job/servers/127.0.0.1", Type.NODE_UPDATED, "");
verify(leaderService, times(0)).electLeader();
}
@Test
public void assertLeaderElectionWhenServerEnableWithoutLeader() {
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
electionListenerManager.new LeaderElectionJobListener().dataChanged("/test_job/servers/127.0.0.1", Type.NODE_UPDATED, "");
verify(leaderService).electLeader();
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertLeaderAbdicationWhenFollowerDisable() {
electionListenerManager.new LeaderAbdicationJobListener().dataChanged("/test_job/servers/127.0.0.1", Type.NODE_UPDATED, ServerStatus.DISABLED.name());
verify(leaderService, times(0)).removeLeader();
}
@Test
public void assertLeaderAbdicationWhenLeaderDisable() {
when(leaderService.isLeader()).thenReturn(true);
electionListenerManager.new LeaderAbdicationJobListener().dataChanged("/test_job/servers/127.0.0.1", Type.NODE_UPDATED, ServerStatus.DISABLED.name());
verify(leaderService).removeLeader();
}
}