1 /* 2 * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import static org.testng.Assert.assertEquals; 25 import static org.testng.Assert.assertFalse; 26 import static org.testng.Assert.assertTrue; 27 import static org.testng.Assert.fail; 28 29 import java.io.IOException; 30 import java.util.List; 31 import java.util.Optional; 32 import java.util.stream.Collectors; 33 34 import org.testng.TestNG; 35 import org.testng.annotations.Test; 36 37 /* 38 * @test 39 * @library /test/lib 40 * @modules java.base/jdk.internal.misc 41 * jdk.management 42 * @build jdk.test.lib.Utils 43 * jdk.test.lib.Asserts 44 * jdk.test.lib.JDKToolFinder 45 * jdk.test.lib.JDKToolLauncher 46 * jdk.test.lib.Platform 47 * jdk.test.lib.process.* 48 * @run testng Basic 49 * @summary Basic tests for ProcessHandler 50 * @author Roger Riggs 51 */ 52 public class Basic { 53 /** 54 * Tests of ProcessHandle.current. 55 */ 56 @Test 57 public static void test1() { 58 try { 59 ProcessHandle self = ProcessHandle.current(); 60 ProcessHandle self1 = ProcessHandle.current(); 61 assertEquals(self, self1); //, "get pid twice should be same %d: %d"); 62 } finally { 63 // Cleanup any left over processes 64 ProcessHandle.current().children().forEach(ProcessHandle::destroy); 65 } 66 } 67 68 /** 69 * Tests of ProcessHandle.get. 70 */ 71 @Test 72 public static void test2() { 73 try { 74 ProcessHandle self = ProcessHandle.current(); 75 long pid = self.pid(); // known native process id 76 Optional<ProcessHandle> self1 = ProcessHandle.of(pid); 77 assertEquals(self1.get(), self, 78 "ProcessHandle.of(x.pid()) should be equal pid() %d: %d"); 79 80 Optional<ProcessHandle> ph = ProcessHandle.of(pid); 81 assertEquals(pid, ph.get().pid()); 82 } finally { 83 // Cleanup any left over processes 84 ProcessHandle.current().children().forEach(ProcessHandle::destroy); 85 } 86 } 87 88 @Test 89 public static void test3() { 90 // Test can get parent of current 91 ProcessHandle ph = ProcessHandle.current(); 92 try { 93 Optional<ProcessHandle> pph = ph.parent(); 94 assertTrue(pph.isPresent(), "Current has a Parent"); 95 } finally { 96 // Cleanup any left over processes 97 ProcessHandle.current().children().forEach(ProcessHandle::destroy); 98 } 99 } 100 101 @Test 102 public static void test4() { 103 try { 104 Process p = new ProcessBuilder("sleep", "0").start(); 105 p.waitFor(); 106 107 long deadPid = p.pid(); 108 p = null; // Forget the process 109 110 Optional<ProcessHandle> t = ProcessHandle.of(deadPid); 111 assertFalse(t.isPresent(), "Handle created for invalid pid:" + t); 112 } catch (IOException | InterruptedException ex) { 113 fail("Unexpected exception", ex); 114 } finally { 115 // Cleanup any left over processes 116 ProcessHandle.current().children().forEach(ProcessHandle::destroy); 117 } 118 } 119 120 @Test 121 public static void test5() { 122 // Always contains itself. 123 ProcessHandle current = ProcessHandle.current(); 124 List<ProcessHandle> list = ProcessHandle.allProcesses().collect(Collectors.toList()); 125 if (!list.stream() 126 .anyMatch(ph -> ph.equals(ProcessHandle.current()))) { 127 System.out.printf("current: %s%n", current); 128 System.out.printf("all processes.size: %d%n", list.size()); 129 list.forEach(p -> ProcessUtil.printProcess(p, " allProcesses: ")); 130 fail("current process not found in all processes"); 131 } 132 } 133 134 @Test(expectedExceptions = IllegalStateException.class) 135 public static void test6() { 136 ProcessHandle.current().onExit(); 137 } 138 139 @Test(expectedExceptions = IllegalStateException.class) 140 public static void test7() { 141 ProcessHandle.current().destroyForcibly(); 142 } 143 144 // Main can be used to run the tests from the command line with only testng.jar. 145 @SuppressWarnings("raw_types") 146 public static void main(String[] args) { 147 Class<?>[] testclass = {TreeTest.class}; 148 TestNG testng = new TestNG(); 149 testng.setTestClasses(testclass); 150 testng.run(); 151 } 152 153 }