| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You 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 org.apache.geode.internal.process; |
| |
| import static org.apache.geode.test.awaitility.GeodeAwaitility.await; |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.assertj.core.api.Assertions.assertThatThrownBy; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.timeout; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.verifyZeroInteractions; |
| |
| import java.io.File; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| import org.apache.geode.internal.process.ControlFileWatchdog.ControlRequestHandler; |
| import org.apache.geode.internal.process.io.EmptyFileWriter; |
| |
| /** |
| * Functional integration tests for {@link ControlFileWatchdog}. |
| */ |
| public class ControlFileWatchdogIntegrationTest { |
| |
| private static final int TEN_MINUTES_MILLIS = 10 * 60 * 1000; |
| |
| private File directory; |
| private String requestFileName; |
| private File requestFile; |
| private ControlRequestHandler requestHandler; |
| private boolean stopAfterRequest; |
| |
| @Rule |
| public TemporaryFolder temporaryFolder = new TemporaryFolder(); |
| |
| @Before |
| public void before() throws Exception { |
| directory = temporaryFolder.getRoot(); |
| requestFileName = "myFile"; |
| requestFile = new File(directory, requestFileName); |
| requestHandler = mock(ControlRequestHandler.class); |
| stopAfterRequest = false; |
| } |
| |
| @Test |
| public void isAlive_returnsFalse_beforeStart() throws Exception { |
| // arrange |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| |
| // act: nothing |
| |
| // assert |
| await().untilAsserted(() -> assertThat(watchdog.isAlive()).isFalse()); |
| } |
| |
| @Test |
| public void isAlive_returnsTrue_afterStart() throws Exception { |
| // arrange |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| |
| // act |
| watchdog.start(); |
| |
| // assert |
| await().untilAsserted(() -> assertThat(watchdog.isAlive()).isTrue()); |
| } |
| |
| @Test |
| public void isAlive_returnsFalse_afterStop() throws Exception { |
| // arrange |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| watchdog.start(); |
| |
| // act |
| watchdog.stop(); |
| |
| // assert |
| await().untilAsserted(() -> assertThat(watchdog.isAlive()).isFalse()); |
| } |
| |
| @Test |
| public void nullFileName_throwsIllegalArgumentException() throws Exception { |
| // arrange |
| requestFileName = null; |
| |
| // act/assert |
| assertThatThrownBy( |
| () -> new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest)) |
| .isInstanceOf(NullPointerException.class); |
| } |
| |
| @Test |
| public void nullDirectory_throwsIllegalArgumentException() throws Exception { |
| // arrange |
| directory = null; |
| |
| // act/assert |
| assertThatThrownBy( |
| () -> new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest)) |
| .isInstanceOf(NullPointerException.class); |
| } |
| |
| @Test |
| public void nullRequestHandler_throwsIllegalArgumentException() throws Exception { |
| // arrange |
| requestHandler = null; |
| |
| // act/assert |
| assertThatThrownBy( |
| () -> new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest)) |
| .isInstanceOf(NullPointerException.class); |
| } |
| |
| @Test |
| public void invokesRequestHandler_afterFileCreation() throws Exception { |
| // arrange |
| requestHandler = mock(ControlRequestHandler.class); |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| watchdog.start(); |
| |
| // act |
| File file = new EmptyFileWriter(requestFile).createNewFile(); |
| |
| // assert |
| verify(requestHandler, timeout(TEN_MINUTES_MILLIS)).handleRequest(); |
| await().untilAsserted(() -> assertThat(file).doesNotExist()); |
| } |
| |
| @Test |
| public void deletesFile_afterInvokingRequestHandler() throws Exception { |
| // arrange |
| requestHandler = mock(ControlRequestHandler.class); |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| watchdog.start(); |
| |
| // act |
| File file = new EmptyFileWriter(requestFile).createNewFile(); |
| |
| // assert |
| verify(requestHandler, timeout(TEN_MINUTES_MILLIS)).handleRequest(); |
| await().untilAsserted(() -> assertThat(file).doesNotExist()); |
| } |
| |
| @Test |
| public void doesNotInvokeRequestHandler_whileFileDoesNotExist() throws Exception { |
| // arrange |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| |
| // act |
| watchdog.start(); |
| |
| // assert |
| verifyZeroInteractions(requestHandler); // would be prefer to wait some time |
| } |
| |
| @Test |
| public void nothingHappens_beforeStart() throws Exception { |
| // arrange |
| requestHandler = mock(ControlRequestHandler.class); |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| |
| // act |
| File file = new EmptyFileWriter(requestFile).createNewFile(); |
| |
| // assert |
| verifyZeroInteractions(requestHandler); // would be prefer to wait some time |
| assertThat(file).exists(); |
| } |
| |
| @Test |
| public void stops_afterInvokingRequestHandler_whenStopAfterRequest() throws Exception { |
| // arrange |
| requestHandler = mock(ControlRequestHandler.class); |
| stopAfterRequest = true; |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| watchdog.start(); |
| |
| // act |
| File file = new EmptyFileWriter(requestFile).createNewFile(); |
| |
| // assert |
| verify(requestHandler, timeout(TEN_MINUTES_MILLIS)).handleRequest(); |
| await().untilAsserted(() -> assertThat(watchdog.isAlive()).isFalse()); |
| await().untilAsserted(() -> assertThat(file).doesNotExist()); |
| } |
| |
| @Test |
| public void doesNotStop_afterInvokingRequestHandler_whenNotStopAfterRequest() throws Exception { |
| // arrange |
| requestHandler = mock(ControlRequestHandler.class); |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| watchdog.start(); |
| |
| // act |
| File file = new EmptyFileWriter(requestFile).createNewFile(); |
| |
| // assert |
| verify(requestHandler, timeout(TEN_MINUTES_MILLIS)).handleRequest(); |
| await().untilAsserted(() -> assertThat(watchdog.isAlive()).isTrue()); |
| await().untilAsserted(() -> assertThat(file).doesNotExist()); |
| } |
| |
| @Test |
| public void toStringIsUsefulForDebugging() throws Exception { |
| // arrange |
| ControlFileWatchdog watchdog = |
| new ControlFileWatchdog(directory, requestFileName, requestHandler, stopAfterRequest); |
| |
| // act/assert |
| assertThat(watchdog.toString()).isNotEmpty().contains("directory=").contains("file=") |
| .contains("alive=").contains("stopAfterRequest="); |
| } |
| } |