/*

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 * 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.

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 */

/*

 * @test

 * @key nmt jcmd

 * @summary Test the NMT scale parameter

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 *          java.management

 * @run main/othervm -XX:NativeMemoryTracking=summary JcmdScale

 */

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.JDKToolFinder;

public class JcmdScale {

  public static void main(String args[]) throws Exception {

    ProcessBuilder pb = new ProcessBuilder();

    OutputAnalyzer output;

    // Grab my own PID

    String pid = Long.toString(ProcessTools.getProcessId());

    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=KB"});

    output = new OutputAnalyzer(pb.start());

    output.shouldContain("KB, committed=");

    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=MB"});

    output = new OutputAnalyzer(pb.start());

    output.shouldContain("MB, committed=");

    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=GB"});

    output = new OutputAnalyzer(pb.start());

    output.shouldContain("GB, committed=");

    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=apa"});

    output = new OutputAnalyzer(pb.start());

    output.shouldContain("Incorrect scale value: apa");

    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=GB"});

    output = new OutputAnalyzer(pb.start());

    output.shouldContain("GB, committed=");

    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=apa"});

    output = new OutputAnalyzer(pb.start());

    output.shouldContain("Incorrect scale value: apa");

  }

}