| /* |
| * 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.ProcessUtils.identifyPid; |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.assertj.core.api.Assertions.assertThatThrownBy; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| 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.rules.TemporaryFolder; |
| |
| import org.apache.geode.internal.process.lang.AvailablePid; |
| |
| /** |
| * Functional integration tests for {@link PidFile}. |
| * |
| * @since GemFire 8.2 |
| */ |
| public class PidFileIntegrationTest { |
| |
| private File directory; |
| private File pidFile; |
| private String pidFileName; |
| private int pid; |
| |
| @Rule |
| public TemporaryFolder temporaryFolder = new TemporaryFolder(); |
| |
| @Before |
| public void before() throws Exception { |
| directory = temporaryFolder.getRoot(); |
| pidFile = new File(directory, "pid.txt"); |
| pidFileName = pidFile.getName(); |
| pid = identifyPid(); |
| } |
| |
| @Test |
| public void readsIntFromFile() throws Exception { |
| // arrange |
| String value = "42"; |
| FileUtils.writeStringToFile(pidFile, value, Charset.defaultCharset()); |
| |
| // act |
| int readValue = new PidFile(pidFile).readPid(); |
| |
| // assert |
| assertThat(readValue).isEqualTo(Integer.parseInt(value)); |
| } |
| |
| @Test |
| public void readingEmptyFileThrowsIllegalArgumentException() throws Exception { |
| // arrange |
| FileUtils.writeStringToFile(pidFile, "", Charset.defaultCharset()); |
| |
| // act/assert |
| assertThatThrownBy(() -> new PidFile(pidFile).readPid()) |
| .isInstanceOf(IllegalArgumentException.class); |
| } |
| |
| @Test |
| public void readingFileWithNonIntegerThrowsIllegalArgumentException() throws Exception { |
| // arrange |
| String value = "forty two"; |
| FileUtils.writeStringToFile(pidFile, value, Charset.defaultCharset()); |
| |
| // act/assert |
| assertThatThrownBy(() -> new PidFile(pidFile).readPid()) |
| .isInstanceOf(IllegalArgumentException.class) |
| .hasMessageContaining("Invalid pid '" + value + "' found"); |
| } |
| |
| @Test |
| public void readingFileWithNegativeIntegerThrowsIllegalArgumentException() throws Exception { |
| // arrange |
| String value = "-42"; |
| FileUtils.writeStringToFile(pidFile, value, Charset.defaultCharset()); |
| |
| // act/assert |
| assertThatThrownBy(() -> new PidFile(pidFile).readPid()) |
| .isInstanceOf(IllegalArgumentException.class) |
| .hasMessageContaining("Invalid pid '" + value + "' found"); |
| } |
| |
| @Test |
| public void readingNullFileThrowsNullPointerException() throws Exception { |
| // arrange |
| pidFile = null; |
| |
| // act/assert |
| assertThatThrownBy(() -> new PidFile(pidFile).readPid()) |
| .isInstanceOf(NullPointerException.class); |
| } |
| |
| @Test |
| public void findsCorrectFileByName() throws Exception { |
| // arrange |
| FileUtils.writeStringToFile(pidFile, String.valueOf(pid), Charset.defaultCharset()); |
| int[] pids = new AvailablePid().findAvailablePids(4); |
| for (int i = 1; i <= pids.length; i++) { |
| FileUtils.writeStringToFile( |
| new File(directory, "pid" + i + ".txt"), String.valueOf(pids[i - 1]), |
| Charset.defaultCharset()); |
| } |
| assertThat(directory.listFiles()).hasSize(pids.length + 1); |
| |
| // act |
| PidFile namedPidFile = new PidFile(directory, pidFile.getName()); |
| |
| // assert |
| assertThat(namedPidFile.getFile()).hasContent(String.valueOf(pid)); |
| assertThat(namedPidFile.readPid()).isEqualTo(pid); |
| } |
| |
| @Test |
| public void missingFileInEmptyDirectoryThrowsFileNotFoundException() throws Exception { |
| // arrange |
| assertThat(pidFile).doesNotExist(); |
| |
| // act/assert |
| assertThatThrownBy(() -> new PidFile(directory, pidFileName).readPid()) |
| .isInstanceOf(FileNotFoundException.class).hasMessage( |
| "Unable to find PID file '" + pidFileName + "' in directory '" + directory + "'"); |
| } |
| |
| @Test |
| public void fileForDirectoryThrowsIllegalArgumentException() throws Exception { |
| // arrange |
| File directoryIsFile = temporaryFolder.newFile("my.file"); |
| |
| // act/assert |
| assertThatThrownBy(() -> new PidFile(directoryIsFile, pidFileName).readPid()) |
| .isInstanceOf(IllegalArgumentException.class) |
| .hasMessage("Nonexistent directory '" + directoryIsFile + "' specified"); |
| } |
| |
| @Test |
| public void missingFileThrowsFileNotFoundException() throws Exception { |
| // act/assert |
| assertThatThrownBy(() -> new PidFile(pidFile).readPid()) |
| .isInstanceOf(IllegalArgumentException.class) |
| .hasMessage("Nonexistent file '" + pidFile + "' specified"); |
| } |
| |
| @Test |
| public void missingFileInFullDirectoryThrowsFileNotFoundException() throws Exception { |
| // arrange |
| int[] pids = new AvailablePid().findAvailablePids(4); |
| for (int i = 1; i <= pids.length; i++) { |
| FileUtils.writeStringToFile( |
| new File(directory, "pid" + i + ".txt"), String.valueOf(pids[i - 1]), |
| Charset.defaultCharset()); |
| } |
| assertThat(directory.listFiles()).hasSameSizeAs(pids); |
| |
| // act/assert |
| assertThatThrownBy(() -> new PidFile(directory, pidFileName).readPid()) |
| .isInstanceOf(FileNotFoundException.class).hasMessage( |
| "Unable to find PID file '" + pidFileName + "' in directory '" + directory + "'"); |
| } |
| } |