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/*

 * @test TestG1PercentageOptions

 * @key gc

 * @bug 8068942

 * @summary Test argument processing of various percentage options

 * @library /testlibrary

 * @modules java.base/sun.misc

 *          java.management

 * @run driver TestG1PercentageOptions

 */

import com.oracle.java.testlibrary.*;

public class TestG1PercentageOptions {

    private static final class OptionDescription {

        public final String name;

        public final String[] valid;

        public final String[] invalid;

        OptionDescription(String name_, String[] valid_, String[] invalid_) {

            name = name_;

            valid = valid_;

            invalid = invalid_;

        }

    }

    private static final String[] defaultValid = new String[] {

        "0", "1", "50", "95", "100" };

    private static final String[] defaultInvalid = new String[] {

        "-10", "110", "bad" };

    // All of the G1 product arguments that are percentages.

    private static final OptionDescription[] percentOptions = new OptionDescription[] {

        new OptionDescription("G1ConfidencePercent", defaultValid, defaultInvalid)

        // Other percentage options are not yet validated by argument processing.

    };

    private static void check(String flag, boolean is_valid) throws Exception {

        String[] flags = new String[] { "-XX:+UseG1GC", flag, "-version" };

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flags);

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

        if (is_valid) {

            output.shouldHaveExitValue(0);

        } else {

            output.shouldHaveExitValue(1);

        }

    }

    private static

    void check(String name, String value, boolean is_valid) throws Exception {

        check("-XX:" + name + "=" + value, is_valid);

    }

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

        for (OptionDescription option : percentOptions) {

            for (String value : option.valid) {

                check(option.name, value, true);

            }

            for (String value : option.invalid) {

                check(option.name, value, false);

            }

            check("-XX:" + option.name, false);

            check("-XX:+" + option.name, false);

            check("-XX:-" + option.name, false);

        }

    }

}