public void testManualServiceFailWhileStarting() throws Exception {
ManualSwitchedService service = new ManualSwitchedService();
RecordingListener listener = RecordingListener.record(service);
service.start();
service.notifyFailed(EXCEPTION);
assertEquals(ImmutableList.of(State.STARTING, State.FAILED), listener.getStateHistory());
}
public void testManualServiceStopWhileStarting() throws Exception {
ManualSwitchedService service = new ManualSwitchedService();
RecordingListener listener = RecordingListener.record(service);
service.start();
assertEquals(State.STARTING, service.state());
assertFalse(service.isRunning());
assertTrue(service.doStartCalled);
service.stop();
assertEquals(State.STOPPING, service.state());
assertFalse(service.isRunning());
assertFalse(service.doStopCalled);
service.notifyStarted();
assertEquals(State.STOPPING, service.state());
assertFalse(service.isRunning());
assertTrue(service.doStopCalled);
service.notifyStopped();
assertEquals(State.TERMINATED, service.state());
assertFalse(service.isRunning());
assertEquals(
ImmutableList.of(State.STARTING, State.STOPPING, State.TERMINATED),
listener.getStateHistory());
}
public void testThrowingServiceStartAndWait() throws Exception {
StartThrowingService service = new StartThrowingService();
RecordingListener listener = RecordingListener.record(service);
try {
service.startAndWait();
fail();
} catch (UncheckedExecutionException e) {
assertEquals(service.exception, e.getCause());
}
assertEquals(ImmutableList.of(State.STARTING, State.FAILED), listener.getStateHistory());
}
public void testStopUnstartedService() throws Exception {
NoOpService service = new NoOpService();
RecordingListener listener = RecordingListener.record(service);
Future<State> stopResult = service.stop();
assertEquals(State.TERMINATED, service.state());
assertEquals(State.TERMINATED, stopResult.get());
Future<State> startResult = service.start();
assertEquals(State.TERMINATED, service.state());
assertEquals(State.TERMINATED, startResult.get());
assertEquals(State.TERMINATED, Iterables.getOnlyElement(listener.getStateHistory()));
}
public void testNoOpServiceStartStopIdempotence() throws Exception {
NoOpService service = new NoOpService();
RecordingListener listener = RecordingListener.record(service);
service.start();
service.start();
assertEquals(State.RUNNING, service.state());
service.stop();
service.stop();
assertEquals(State.TERMINATED, service.state());
assertEquals(
ImmutableList.of(State.STARTING, State.RUNNING, State.STOPPING, State.TERMINATED),
listener.getStateHistory());
}
public void testFailingServiceStopAndWait_runFailinging() throws Exception {
RunFailingService service = new RunFailingService();
RecordingListener listener = RecordingListener.record(service);
service.startAndWait();
try {
service.stopAndWait();
fail();
} catch (UncheckedExecutionException e) {
assertEquals(EXCEPTION, e.getCause().getCause());
}
assertEquals(
ImmutableList.of(State.STARTING, State.RUNNING, State.FAILED), listener.getStateHistory());
}
public void testThreadedServiceStartAndWaitStopAndWait() throws Throwable {
ThreadedService service = new ThreadedService();
RecordingListener listener = RecordingListener.record(service);
service.start().get();
assertEquals(State.RUNNING, service.state());
service.awaitRunChecks();
service.stopAndWait();
assertEquals(State.TERMINATED, service.state());
throwIfSet(thrownByExecutionThread);
assertEquals(
ImmutableList.of(State.STARTING, State.RUNNING, State.STOPPING, State.TERMINATED),
listener.getStateHistory());
}
