TestUseRTMLockingOptionOnSupportedConfig.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/**
 * @test
 * @bug 8031320
 * @summary Verify UseRTMLocking option processing on CPU and OS with rtm support and
 *          on VM with rtm locking support.
 * @library /test/lib /
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @requires vm.flagless
 * @requires vm.rtm.cpu & vm.rtm.compiler
 * @run driver compiler.rtm.cli.TestUseRTMLockingOptionOnSupportedConfig
 */

package compiler.rtm.cli;

import jdk.test.lib.process.ExitCode;
import jdk.test.lib.cli.CommandLineOptionTest;

public class TestUseRTMLockingOptionOnSupportedConfig {
    private static final String DEFAULT_VALUE = "false";

    public void runTestCases() throws Throwable {
        String unrecongnizedOption
                =  CommandLineOptionTest.getUnrecognizedOptionErrorMessage(
                "UseRTMLocking");
        String shouldPassMessage = "VM option 'UseRTMLocking' is experimental"
                + "%nJVM startup should pass with "
                + "-XX:+UnlockExperimentalVMOptions flag";
        // verify that there are no warning or error in VM output
        CommandLineOptionTest.verifySameJVMStartup(null,
                new String[]{
                        RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR,
                        unrecongnizedOption
                }, shouldPassMessage, "There should not be any warning when use"
                        + "with -XX:+UnlockExperimentalVMOptions", ExitCode.OK,
                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                "-XX:+UseRTMLocking"
        );

        CommandLineOptionTest.verifySameJVMStartup(null,
                new String[]{
                        RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR,
                        unrecongnizedOption
                }, shouldPassMessage, "There should not be any warning when use"
                        + "with -XX:+UnlockExperimentalVMOptions", ExitCode.OK,
                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                "-XX:-UseRTMLocking"
        );
        // verify that UseRTMLocking is of by default
        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
                TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE,
                String.format("Default value of option 'UseRTMLocking' should "
                    + "be '%s'", DEFAULT_VALUE),
                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
        // verify that we can change UseRTMLocking value
        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
                TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE,
                String.format("Default value of option 'UseRTMLocking' should "
                    + "be '%s'", DEFAULT_VALUE),
                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                "-XX:-UseRTMLocking");
        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
                "true", "Value of 'UseRTMLocking' should be set "
                        + "to 'true' if -XX:+UseRTMLocking flag set",
                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                "-XX:+UseRTMLocking");
    }

    public static void main(String args[]) throws Throwable {
        new TestUseRTMLockingOptionOnSupportedConfig().runTestCases();
    }
}