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import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.cli.*;

/*
 * @test
 * @bug 8066821
 * @summary Test that various options are deprecated. See deprecated_jvm_flags in arguments.cpp.
 * @modules java.base/jdk.internal.misc
 * @library /test/lib
 */
public class VMDeprecatedOptions {

    /**
     * each entry is {[0]: option name, [1]: value to set
     * (true/false/n/string)}.
     */
    public static final String[][] DEPRECATED_OPTIONS = {
        // deprecated non-alias flags:
        {"MaxGCMinorPauseMillis",     "1032"},
        {"MaxRAMFraction",            "8"},
        {"MinRAMFraction",            "2"},
        {"InitialRAMFraction",        "64"},
        {"AssumeMP",                  "false"},
        {"UseMembar",                 "true"},
        {"CompilerThreadHintNoPreempt", "true"},
        {"VMThreadHintNoPreempt",       "false"},

        // deprecated alias flags (see also aliased_jvm_flags):
        {"DefaultMaxRAMFraction", "4"},
        {"CreateMinidumpOnCrash", "false"}
    };

    static String getDeprecationString(String optionName) {
        return "Option " + optionName
            + " was deprecated in version [\\S]+ and will likely be removed in a future release";
    }

    static void testDeprecated(String[][] optionInfo) throws Throwable {
        String optionNames[] = new String[optionInfo.length];
        String expectedValues[] = new String[optionInfo.length];
        for (int i = 0; i < optionInfo.length; i++) {
            optionNames[i] = optionInfo[i][0];
            expectedValues[i] = optionInfo[i][1];
        }

        OutputAnalyzer output = CommandLineOptionTest.startVMWithOptions(optionNames, expectedValues);

        // check for option deprecation messages:
        output.shouldHaveExitValue(0);
        for (String[] deprecated : optionInfo) {
            String match = getDeprecationString(deprecated[0]);
            output.shouldMatch(match);
        }
    }

    // Deprecated diagnostic command line options need to be preceded on the
    // command line by -XX:+UnlockDiagnosticVMOptions.
    static void testDeprecatedDiagnostic(String option, String value)  throws Throwable {
        String XXoption = CommandLineOptionTest.prepareFlag(option, value);
        ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder(
            CommandLineOptionTest.UNLOCK_DIAGNOSTIC_VM_OPTIONS, XXoption, "-version");
        OutputAnalyzer output = new OutputAnalyzer(processBuilder.start());
        // check for option deprecation message:
        output.shouldHaveExitValue(0);
        String match = getDeprecationString(option);
        output.shouldMatch(match);
    }

    // Deprecated experimental command line options need to be preceded on the
    // command line by -XX:+UnlockExperimentalVMOption.
    static void testDeprecatedExperimental(String option, String value)  throws Throwable {
        String XXoption = CommandLineOptionTest.prepareFlag(option, value);
        ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder(
            CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS, XXoption, "-version");
        OutputAnalyzer output = new OutputAnalyzer(processBuilder.start());
        // check for option deprecation message:
        output.shouldHaveExitValue(0);
        String match = getDeprecationString(option);
        output.shouldMatch(match);
    }

    public static void main(String[] args) throws Throwable {
        testDeprecated(DEPRECATED_OPTIONS);  // Make sure that each deprecated option is mentioned in the output.
        testDeprecatedDiagnostic("IgnoreUnverifiableClassesDuringDump", "false");
    }
}