1 /* 2 * Copyright (c) 2011, 2018, 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 jdk.testlibrary.Asserts.*; 25 26 import java.io.File; 27 import java.io.IOException; 28 import java.nio.file.Files; 29 import java.nio.file.Path; 30 import java.nio.file.Paths; 31 import java.util.List; 32 33 import jdk.testlibrary.JcmdBase; 34 import jdk.testlibrary.OutputAnalyzer; 35 import jdk.testlibrary.Utils; 36 37 /* 38 * @test 39 * @bug 7104647 40 * @summary Unit test for jcmd utility. Tests jcmd options which do not send 41 * requests to a specific JVM process. 42 * 43 * @library /lib/testlibrary 44 * 45 * @build jdk.testlibrary.* 46 * @run main TestJcmdDefaults 47 */ 48 public class TestJcmdDefaults { 49 50 private static final String TEST_SRC = System.getProperty("test.src").trim(); 51 private static final String[] VM_ARGS = new String[] { "-XX:+UsePerfData" }; 52 private static final String JCMD_LIST_REGEX = "(?s)^\\d+\\s*.*"; 53 54 public static void main(String[] args) throws Exception { 55 testJcmdUsage("-?"); 56 testJcmdUsage("-h"); 57 testJcmdUsage("--help"); 58 testJcmdDefaults(); 59 testJcmdDefaults("-l"); 60 } 61 62 /** 63 * jcmd -J-XX:+UsePerfData -? 64 * jcmd -J-XX:+UsePerfData -h 65 * jcmd -J-XX:+UsePerfData --help 66 */ 67 private static void testJcmdUsage(String... jcmdArgs) throws Exception { 68 OutputAnalyzer output = JcmdBase.jcmdNoPid(VM_ARGS, jcmdArgs); 69 70 assertEquals(output.getExitValue(), 0); 71 verifyOutputAgainstFile(output); 72 } 73 74 /** 75 * jcmd -J-XX:+UsePerfData 76 * jcmd -J-XX:+UsePerfData -l 77 */ 78 private static void testJcmdDefaults(String... jcmdArgs) throws Exception { 79 OutputAnalyzer output = JcmdBase.jcmdNoPid(VM_ARGS, jcmdArgs); 80 81 output.shouldHaveExitValue(0); 82 output.shouldContain("sun.tools.jcmd.JCmd"); 83 matchListedProcesses(output); 84 } 85 86 /** 87 * Verifies the listed processes match a certain pattern. 88 * 89 * The output should look like: 90 * 12246 sun.tools.jcmd.JCmd 91 * 24428 com.sun.javatest.regtest.MainWrapper /tmp/jtreg/jtreg-workdir/classes/sun/tools/jcmd/TestJcmdDefaults.jta 92 * 93 * @param output The generated output from the jcmd. 94 * @throws Exception 95 */ 96 private static void matchListedProcesses(OutputAnalyzer output) throws Exception { 97 int matchedCount = output.shouldMatchByLine(JCMD_LIST_REGEX); 98 assertGreaterThan(matchedCount , 0, 99 "Found no lines matching pattern: " + JCMD_LIST_REGEX); 100 } 101 102 private static void verifyOutputAgainstFile(OutputAnalyzer output) throws IOException { 103 Path path = Paths.get(TEST_SRC, "usage.out"); 104 List<String> fileOutput = Files.readAllLines(path); 105 List<String> outputAsLines = output.asLines(); 106 assertTrue(outputAsLines.containsAll(fileOutput), 107 "The ouput should contain all content of " + path.toAbsolutePath()); 108 } 109 110 }