| // Copyright (C) 2013 The Android Open Source Project |
| // |
| // 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.googlesource.gerrit.plugins.hooks.rtc; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Mockito.*; |
| |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Future; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.mockito.Mock; |
| import org.mockito.invocation.InvocationOnMock; |
| import org.mockito.runners.MockitoJUnitRunner; |
| import org.mockito.stubbing.Answer; |
| |
| import com.google.gerrit.common.ChangeListener; |
| import com.google.gerrit.server.events.ChangeEvent; |
| import com.googlesource.gerrit.plugins.hooks.rtc.filters.ChangeListenerAsyncDecorator; |
| |
| @RunWith(MockitoJUnitRunner.class) |
| public class ChangeListenerAsyncDecoratorTest { |
| |
| @Mock |
| ChangeListener listener; |
| @Mock |
| ChangeEvent event; |
| @Mock |
| ExecutorService executor; |
| @Mock |
| ExecutorService immediateExecutor; |
| |
| ChangeListenerAsyncDecorator<ChangeListener> asyncListener; |
| |
| @Before |
| public void setUp() { |
| when(immediateExecutor.submit(any(Runnable.class))).thenAnswer( |
| new Answer<Future<?>>() { |
| |
| @Override |
| public Future<?> answer(InvocationOnMock invocation) throws Throwable { |
| Runnable task = (Runnable) invocation.getArguments()[0]; |
| task.run(); |
| return null; |
| |
| } |
| }); |
| asyncListener = |
| new ChangeListenerAsyncDecorator<ChangeListener>(listener, executor); |
| } |
| |
| @Test |
| public void testQueueShouldBeEmptyWhenCreated() { |
| assertTrue(asyncListener.getQueue().isEmpty()); |
| } |
| |
| @Test |
| public void testQueueShouldNotBeEmptyWhenOneEventSubmitted() { |
| asyncListener.onChangeEvent(event); |
| assertFalse(asyncListener.getQueue().isEmpty()); |
| } |
| |
| @Test |
| public void testChangeEventShouldBeQueuedWhenSubmitted() { |
| asyncListener.onChangeEvent(event); |
| assertEquals(event, asyncListener.getQueue().peek()); |
| } |
| |
| @Test |
| public void testChangeEventShouldBeSentToExecutor() { |
| asyncListener.onChangeEvent(event); |
| verify(executor).submit( |
| any(ChangeListenerAsyncDecorator.ChangeRunner.class)); |
| } |
| |
| @Test |
| public void testChangeEventShouldBePropagatedToListenerWhenImmediatelyExecuted() { |
| asyncListener = |
| new ChangeListenerAsyncDecorator<ChangeListener>(listener, |
| immediateExecutor); |
| asyncListener.onChangeEvent(event); |
| verify(listener).onChangeEvent(event); |
| assertTrue(asyncListener.getQueue().isEmpty()); |
| } |
| |
| @Test |
| public void testChangeEventShouldStayInQueueWhenExecutionFailed() { |
| asyncListener = |
| new ChangeListenerAsyncDecorator<ChangeListener>(listener, |
| immediateExecutor); |
| doThrow(new IllegalArgumentException()).when(listener).onChangeEvent( |
| any(ChangeEvent.class)); |
| |
| asyncListener.onChangeEvent(event); |
| verify(listener).onChangeEvent(event); |
| assertFalse(asyncListener.getQueue().isEmpty()); |
| } |
| |
| @Test |
| public void testChangeShouldProcessAllPreviouslyFailedEventsInQueue() { |
| asyncListener = |
| new ChangeListenerAsyncDecorator<ChangeListener>(listener, |
| immediateExecutor); |
| |
| doThrow(new IllegalArgumentException()).when(listener).onChangeEvent( |
| any(ChangeEvent.class)); |
| asyncListener.onChangeEvent(event); |
| verify(listener).onChangeEvent(event); |
| assertFalse(asyncListener.getQueue().isEmpty()); |
| |
| doNothing().when(listener).onChangeEvent(any(ChangeEvent.class)); |
| asyncListener.onChangeEvent(event); |
| verify(listener, times(3)).onChangeEvent(event); |
| |
| assertTrue(asyncListener.getQueue().isEmpty()); |
| } |
| |
| } |