| /* |
| * 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.internal.process.LocalProcessLauncher.PROPERTY_IGNORE_IS_PID_ALIVE; |
| import static org.apache.geode.internal.process.ProcessUtils.identifyPid; |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.assertj.core.api.Assertions.assertThatThrownBy; |
| |
| import java.io.File; |
| import java.nio.charset.Charset; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.contrib.java.lang.system.RestoreSystemProperties; |
| import org.junit.rules.TemporaryFolder; |
| |
| import org.apache.geode.internal.process.io.EmptyFileWriter; |
| import org.apache.geode.internal.process.lang.AvailablePid; |
| import org.apache.geode.test.junit.Retry; |
| import org.apache.geode.test.junit.rules.RetryRule; |
| |
| /** |
| * Functional integration tests for {@link LocalProcessLauncher}. |
| * |
| * <p> |
| * Tests involving fakePid use {@link RetryRule} because the fakePid may become used by a real |
| * process before the test executes. |
| */ |
| public class LocalProcessLauncherIntegrationTest { |
| |
| private static final int PREFERRED_FAKE_PID = 42; |
| |
| private File pidFile; |
| private int actualPid; |
| private int fakePid; |
| |
| @Rule |
| public RestoreSystemProperties restoreSystemProperties = new RestoreSystemProperties(); |
| |
| @Rule |
| public RetryRule retryRule = new RetryRule(); |
| |
| @Rule |
| public TemporaryFolder temporaryFolder = new TemporaryFolder(); |
| |
| @Before |
| public void before() throws Exception { |
| pidFile = new File(temporaryFolder.getRoot(), "my.pid"); |
| actualPid = identifyPid(); |
| fakePid = new AvailablePid().findAvailablePid(PREFERRED_FAKE_PID); |
| |
| assertThat(pidFile).doesNotExist(); |
| } |
| |
| @Test |
| public void createsPidFile() throws Exception { |
| // act |
| new LocalProcessLauncher(pidFile, false); |
| |
| // assert |
| assertThat(pidFile).exists().hasContent(String.valueOf(actualPid)); |
| } |
| |
| @Test |
| @Retry(3) |
| public void existingPidFileThrowsFileAlreadyExistsException() throws Exception { |
| // arrange |
| System.setProperty(PROPERTY_IGNORE_IS_PID_ALIVE, "true"); |
| FileUtils.writeStringToFile(pidFile, String.valueOf(fakePid), Charset.defaultCharset()); |
| |
| // act/assert |
| assertThatThrownBy(() -> new LocalProcessLauncher(pidFile, false)) |
| .isInstanceOf(FileAlreadyExistsException.class); |
| } |
| |
| @Test |
| public void overwritesPidFileIfForce() throws Exception { |
| // arrange |
| FileUtils.writeStringToFile(pidFile, String.valueOf(actualPid), Charset.defaultCharset()); |
| |
| // act |
| new LocalProcessLauncher(pidFile, true); |
| |
| // assert |
| assertThat(pidFile).exists().hasContent(String.valueOf(actualPid)); |
| } |
| |
| @Test |
| @Retry(3) |
| public void overwritesPidFileIfOtherPidIsNotAlive() throws Exception { |
| // arrange |
| FileUtils.writeStringToFile(pidFile, String.valueOf(fakePid), Charset.defaultCharset()); |
| |
| // act |
| new LocalProcessLauncher(pidFile, false); |
| |
| // assert |
| assertThat(pidFile).exists().hasContent(String.valueOf(actualPid)); |
| } |
| |
| @Test |
| public void overwritesEmptyPidFile() throws Exception { |
| // arrange |
| new EmptyFileWriter(pidFile).createNewFile(); |
| |
| // act |
| new LocalProcessLauncher(pidFile, false); |
| |
| // assert |
| assertThat(pidFile).exists().hasContent(String.valueOf(actualPid)); |
| } |
| |
| @Test |
| public void getPidReturnsActualPid() throws Exception { |
| // arrange |
| LocalProcessLauncher launcher = new LocalProcessLauncher(pidFile, false); |
| |
| // act/assert |
| assertThat(launcher.getPid()).isEqualTo(actualPid); |
| } |
| |
| @Test |
| public void getPidFileReturnsPidFile() throws Exception { |
| // arrange |
| LocalProcessLauncher launcher = new LocalProcessLauncher(pidFile, false); |
| |
| // act/assert |
| assertThat(launcher.getPidFile()).isEqualTo(pidFile); |
| } |
| |
| @Test |
| public void closeDeletesPidFile() throws Exception { |
| // arrange |
| LocalProcessLauncher launcher = new LocalProcessLauncher(pidFile, false); |
| assertThat(pidFile).exists(); |
| |
| // act |
| launcher.close(); |
| |
| // assert |
| assertThat(pidFile).doesNotExist(); |
| } |
| } |