| /** |
| * 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.hadoop.yarn.server.nodemanager.util; |
| |
| import static org.junit.Assert.*; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| |
| import junit.framework.Assert; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.util.Shell; |
| import org.apache.hadoop.yarn.server.nodemanager.util.ProcessIdFileReader; |
| import org.junit.Test; |
| |
| public class TestProcessIdFileReader { |
| |
| |
| @Test (timeout = 30000) |
| public void testNullPath() { |
| String pid = null; |
| try { |
| pid = ProcessIdFileReader.getProcessId(null); |
| fail("Expected an error to be thrown for null path"); |
| } catch (Exception e) { |
| // expected |
| } |
| assert(pid == null); |
| } |
| |
| @Test (timeout = 30000) |
| public void testSimpleGet() throws IOException { |
| String rootDir = new File(System.getProperty( |
| "test.build.data", "/tmp")).getAbsolutePath(); |
| File testFile = null; |
| String expectedProcessId = Shell.WINDOWS ? |
| "container_1353742680940_0002_01_000001" : |
| "56789"; |
| |
| try { |
| testFile = new File(rootDir, "temp.txt"); |
| PrintWriter fileWriter = new PrintWriter(testFile); |
| fileWriter.println(expectedProcessId); |
| fileWriter.close(); |
| String processId = null; |
| |
| processId = ProcessIdFileReader.getProcessId( |
| new Path(rootDir + Path.SEPARATOR + "temp.txt")); |
| Assert.assertEquals(expectedProcessId, processId); |
| |
| } finally { |
| if (testFile != null |
| && testFile.exists()) { |
| testFile.delete(); |
| } |
| } |
| } |
| |
| |
| @Test (timeout = 30000) |
| public void testComplexGet() throws IOException { |
| String rootDir = new File(System.getProperty( |
| "test.build.data", "/tmp")).getAbsolutePath(); |
| File testFile = null; |
| String processIdInFile = Shell.WINDOWS ? |
| " container_1353742680940_0002_01_000001 " : |
| " 23 "; |
| String expectedProcessId = processIdInFile.trim(); |
| try { |
| testFile = new File(rootDir, "temp.txt"); |
| PrintWriter fileWriter = new PrintWriter(testFile); |
| fileWriter.println(" "); |
| fileWriter.println(""); |
| fileWriter.println("abc"); |
| fileWriter.println("-123"); |
| fileWriter.println("-123 "); |
| fileWriter.println(processIdInFile); |
| fileWriter.println("6236"); |
| fileWriter.close(); |
| String processId = null; |
| |
| processId = ProcessIdFileReader.getProcessId( |
| new Path(rootDir + Path.SEPARATOR + "temp.txt")); |
| Assert.assertEquals(expectedProcessId, processId); |
| |
| } finally { |
| if (testFile != null |
| && testFile.exists()) { |
| testFile.delete(); |
| } |
| } |
| } |
| } |