135 lines
4.8 KiB
Java
135 lines
4.8 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import com.oracle.java.testlibrary.OutputAnalyzer;
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import com.oracle.java.testlibrary.dcmd.CommandExecutor;
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import com.oracle.java.testlibrary.dcmd.JMXExecutor;
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import org.testng.annotations.Test;
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import static org.testng.Assert.*;
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/*
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* @test
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* @bug 8054890
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* @summary Test of VM.set_flag diagnostic command
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* @library /testlibrary
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* @build com.oracle.java.testlibrary.*
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* @build com.oracle.java.testlibrary.dcmd.*
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* @run testng SetVMFlagTest
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*/
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public class SetVMFlagTest {
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private static final String PRINTGC_NAME = "PrintGC";
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private static final String XMX_NAME = "MaxHeapSize";
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private static final String PRINTGC_PATTERN = "\\s*bool " + PRINTGC_NAME +
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"\\s+[\\:]?=\\s+(.*?)\\s+\\{manageable\\}";
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private static final String XMX_PATTERN = "\\s*uintx " + XMX_NAME +
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"\\s+[\\:]?=\\s+(.*?)\\s+\\{product\\}";
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public void run(CommandExecutor executor) {
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setMutableFlag(executor);
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setMutableFlagWithInvalidValue(executor);
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setImmutableFlag(executor);
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setNonExistingFlag(executor);
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}
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@Test
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public void jmx() {
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run(new JMXExecutor());
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}
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private void setMutableFlag(CommandExecutor executor) {
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OutputAnalyzer out = getAllFlags(executor);
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String flagVal = out.firstMatch(PRINTGC_PATTERN, 1);
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if (flagVal == null) {
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System.err.println(out.getOutput());
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throw new Error("'" + PRINTGC_NAME + "' flag is either not available or manageable");
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}
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Boolean blnVal = Boolean.parseBoolean(flagVal);
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out = executor.execute("VM.set_flag " + PRINTGC_NAME + " " + (blnVal ? 0 : 1));
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out.stderrShouldBeEmpty();
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out = getAllFlags(executor);
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String newFlagVal = out.firstMatch(PRINTGC_PATTERN, 1);
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assertNotEquals(newFlagVal, flagVal);
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}
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private void setMutableFlagWithInvalidValue(CommandExecutor executor) {
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OutputAnalyzer out = getAllFlags(executor);
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String flagVal = out.firstMatch(PRINTGC_PATTERN, 1);
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if (flagVal == null) {
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System.err.println(out.getOutput());
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throw new Error("'" + PRINTGC_NAME + "' flag is either not available or manageable");
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}
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// PrintGC is a boolean flag and accepts only 0/1 as its value
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out = executor.execute("VM.set_flag " + PRINTGC_NAME + " unexpected_value");
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out.stderrShouldBeEmpty();
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out.stdoutShouldContain("flag value must be a boolean (1 or 0)");
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out = getAllFlags(executor);
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String newFlagVal = out.firstMatch(PRINTGC_PATTERN, 1);
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assertEquals(newFlagVal, flagVal);
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}
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private void setImmutableFlag(CommandExecutor executor) {
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OutputAnalyzer out = getAllFlags(executor);
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String flagVal = out.firstMatch(XMX_PATTERN, 1);
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if (flagVal == null) {
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System.err.println(out.getOutput());
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throw new Error("'" + XMX_NAME + "' flag is not available or immutable");
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}
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Long numVal = Long.parseLong(flagVal);
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out = executor.execute("VM.set_flag " + XMX_NAME + " " + (numVal + 1));
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out.stderrShouldBeEmpty();
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out.stdoutShouldContain("only 'writeable' flags can be set");
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out = getAllFlags(executor);
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String newFlagVal = out.firstMatch(XMX_PATTERN, 1);
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assertEquals(newFlagVal, flagVal);
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}
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private void setNonExistingFlag(CommandExecutor executor) {
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String unknownFlag = "ThisIsUnknownFlag";
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OutputAnalyzer out = executor.execute("VM.set_flag " + unknownFlag + " 1");
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out.stderrShouldBeEmpty();
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out.stdoutShouldContain("flag " + unknownFlag + " does not exist");
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}
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private OutputAnalyzer getAllFlags(CommandExecutor executor) {
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return executor.execute("VM.flags -all");
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}
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} |