/*
* 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.LeaderService.LeaderElectionExecutionCallback;
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.storage.JobNodeStorage;
import com.dangdang.ddframe.job.reg.base.CoordinatorRegistryCenter;
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.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public final class LeaderServiceTest {
@Mock
private CoordinatorRegistryCenter regCenter;
@Mock
private JobScheduleController jobScheduleController;
@Mock
private JobNodeStorage jobNodeStorage;
@Mock
private ServerService serverService;
private LeaderService leaderService;
@Before
public void setUp() throws NoSuchFieldException {
JobRegistry.getInstance().addJobInstance("test_job", new JobInstance("127.0.0.1@-@0"));
leaderService = new LeaderService(null, "test_job");
MockitoAnnotations.initMocks(this);
ReflectionUtils.setFieldValue(leaderService, "jobNodeStorage", jobNodeStorage);
ReflectionUtils.setFieldValue(leaderService, "serverService", serverService);
}
@Test
public void assertElectLeader() {
leaderService.electLeader();
verify(jobNodeStorage).executeInLeader(eq("leader/election/latch"), ArgumentMatchers.<LeaderElectionExecutionCallback>any());
}
@Test
public void assertIsLeaderUntilBlockWithLeader() {
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
when(jobNodeStorage.isJobNodeExisted("leader/election/instance")).thenReturn(true);
when(jobNodeStorage.getJobNodeData("leader/election/instance")).thenReturn("127.0.0.1@-@0");
assertTrue(leaderService.isLeaderUntilBlock());
verify(jobNodeStorage, times(0)).executeInLeader(eq("leader/election/latch"), ArgumentMatchers.<LeaderElectionExecutionCallback>any());
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertIsLeaderUntilBlockWithoutLeaderAndAvailableServers() {
when(jobNodeStorage.isJobNodeExisted("leader/election/instance")).thenReturn(false);
assertFalse(leaderService.isLeaderUntilBlock());
verify(jobNodeStorage, times(0)).executeInLeader(eq("leader/election/latch"), ArgumentMatchers.<LeaderElectionExecutionCallback>any());
}
@Test
public void assertIsLeaderUntilBlockWithoutLeaderWithAvailableServers() {
when(jobNodeStorage.isJobNodeExisted("leader/election/instance")).thenReturn(false, true);
assertFalse(leaderService.isLeaderUntilBlock());
verify(jobNodeStorage, times(0)).executeInLeader(eq("leader/election/latch"), ArgumentMatchers.<LeaderElectionExecutionCallback>any());
}
@Test
public void assertIsLeaderUntilBlockWhenHasLeader() {
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
when(jobNodeStorage.isJobNodeExisted("leader/election/instance")).thenReturn(false, true);
when(serverService.hasAvailableServers()).thenReturn(true);
when(serverService.isAvailableServer("127.0.0.1")).thenReturn(true);
when(jobNodeStorage.getJobNodeData("leader/election/instance")).thenReturn("127.0.0.1@-@0");
assertTrue(leaderService.isLeaderUntilBlock());
verify(jobNodeStorage).executeInLeader(eq("leader/election/latch"), ArgumentMatchers.<LeaderElectionExecutionCallback>any());
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertIsLeader() {
JobRegistry.getInstance().registerJob("test_job", jobScheduleController, regCenter);
when(jobNodeStorage.getJobNodeData("leader/election/instance")).thenReturn("127.0.0.1@-@0");
assertTrue(leaderService.isLeader());
JobRegistry.getInstance().shutdown("test_job");
}
@Test
public void assertHasLeader() {
when(jobNodeStorage.isJobNodeExisted("leader/election/instance")).thenReturn(true);
assertTrue(leaderService.hasLeader());
}
@Test
public void assertRemoveLeader() {
leaderService.removeLeader();
verify(jobNodeStorage).removeJobNodeIfExisted("leader/election/instance");
}
@Test
public void assertElectLeaderExecutionCallbackWithLeader() {
when(jobNodeStorage.isJobNodeExisted("leader/election/instance")).thenReturn(true);
leaderService.new LeaderElectionExecutionCallback().execute();
verify(jobNodeStorage, times(0)).fillEphemeralJobNode("leader/election/instance", "127.0.0.1@-@0");
}
@Test
public void assertElectLeaderExecutionCallbackWithoutLeader() {
leaderService.new LeaderElectionExecutionCallback().execute();
verify(jobNodeStorage).fillEphemeralJobNode("leader/election/instance", "127.0.0.1@-@0");
}
}