/* * Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
/* * @test * @bug 7104647 7154822 * @summary Unit test for jcmd utility. The test will send different diagnostic * command requests to the current java process. * * @library /test/lib * * @run main/othervm -XX:+UsePerfData TestJcmdSanity
*/ publicclass TestJcmdSanity {
/** * jcmd -J-XX:+UsePerfData pid help
*/ privatestaticvoid testJcmdPidHelp() throws Exception {
OutputAnalyzer output = JcmdBase.jcmd(VM_ARGS, new String[] {"help"});
output.shouldHaveExitValue(0);
output.shouldNotContain("Exception");
output.shouldContain(Long.toString(ProcessTools.getProcessId()) + ":");
matchJcmdCommands(output);
output.shouldContain("For more information about a specific command use 'help '.");
}
/** * jcmd -J-XX:+UsePerfData pid help help
*/ privatestaticvoid testJcmdPidHelpHelp() throws Exception {
OutputAnalyzer output = JcmdBase.jcmd(VM_ARGS, new String[] {"help", "help"});
/** * Tests that it possible send a file over 1024 bytes large via jcmd -f. * * jcmd -J-XX:+UsePerfData pid -f dcmd-big-script.txt
*/ privatestaticvoid testJcmdPidBigScript() throws Exception {
File scrpitFile = new File(TEST_SRC, "dcmd-big-script.txt");
OutputAnalyzer output = JcmdBase.jcmd(VM_ARGS, new String[] {"-f", scrpitFile.getAbsolutePath()});
/** * Verifies the listed jcmd commands match a certain pattern. * * The output of the jcmd commands should look like: * VM.uptime * VM.flags * VM.system_properties * * @param output The generated output from the jcmd. * @throws Exception
*/ privatestaticvoid matchJcmdCommands(OutputAnalyzer output) {
output.shouldMatchByLine(JCMD_COMMAND_REGEX, "help",
JCMD_COMMAND_REGEX);
}
/** * Verifies the generated output from the PerfCounter.print command * matches a certain pattern. * * The output of perf counters should look like: * java.property.java.vm.name="Java HotSpot(TM) 64-Bit Server VM" * java.threads.daemon=7 * sun.rt.javaCommand="com.sun.javatest.regtest.MainWrapper /tmp/jtreg/jtreg-workdir/classes/sun/tools/jcmd/TestJcmdSanity.jta" * * @param output The generated output from the PerfCounter.print command. * @throws Exception
*/ privatestaticvoid matchPerfCounters(OutputAnalyzer output) {
output.stdoutShouldMatchByLine(PERF_COUNTER_REGEX, null, PERF_COUNTER_REGEX);
output.stderrShouldBeEmptyIgnoreDeprecatedWarnings();
}
privatestaticvoid verifyOutputAgainstFile(OutputAnalyzer output) throws IOException {
Path path = Paths.get(TEST_SRC, "help_help.out");
List<String> fileOutput = Files.readAllLines(path);
List<String> outputAsLines = output.asLines();
assertTrue(outputAsLines.containsAll(fileOutput), "The ouput should contain all content of " + path.toAbsolutePath());
}
// Should find the signal handler summary (except on Windows): if (!Platform.isWindows()) {
output.shouldContain("Signal Handlers:"); // Should not find any of the possible signal handler modification warnings:
output.shouldNotContain(" handler modified!"); // e.g. Warning: SIGILL handler modified!
output.shouldNotContain("*** Handler was modified!");
output.shouldNotContain("*** Expected: "); // e.g. *** Expected: javaSignalHandler in ...
}
}
}
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