/*

 * Copyright (c) 2018, Red Hat, Inc. All rights reserved.

 *

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

/* @test TestWrongBarrierDisable

 * @summary Test that disabling wrong barriers fails early

 * @key gc

 * @requires vm.gc.Shenandoah

 * @library /test/lib

 * @run main/othervm TestWrongBarrierDisable

 */

import java.util.*;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

public class TestWrongBarrierDisable {

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

        String[] concurrent = {

                "ShenandoahReadBarrier",

                "ShenandoahWriteBarrier",

                "ShenandoahCASBarrier",

                "ShenandoahAcmpBarrier",

                "ShenandoahCloneBarrier",

                "ShenandoahSATBBarrier",

                "ShenandoahKeepAliveBarrier",

                "ShenandoahStoreValReadBarrier",

        };

        String[] traversal = {

                "ShenandoahReadBarrier",

                "ShenandoahWriteBarrier",

                "ShenandoahCASBarrier",

                "ShenandoahAcmpBarrier",

                "ShenandoahCloneBarrier",

        };

        shouldFailAll("adaptive",   concurrent);

        shouldFailAll("static",     concurrent);

        shouldFailAll("compact",    concurrent);

        shouldFailAll("aggressive", concurrent);

        shouldFailAll("traversal",  traversal);

        shouldPassAll("passive",    concurrent);

        shouldPassAll("passive",    traversal);

    }

    private static void shouldFailAll(String h, String[] barriers) throws Exception {

        for (String b : barriers) {

            ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

                    "-XX:+UnlockDiagnosticVMOptions",

                    "-XX:+UnlockExperimentalVMOptions",

                    "-XX:+UseShenandoahGC",

                    "-XX:ShenandoahGCHeuristics=" + h,

                    "-XX:-" + b,

                    "-version"

            );

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

            output.shouldNotHaveExitValue(0);

            output.shouldContain("Heuristics needs ");

            output.shouldContain("to work correctly");

        }

    }

    private static void shouldPassAll(String h, String[] barriers) throws Exception {

        for (String b : barriers) {

            ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

                    "-XX:+UnlockDiagnosticVMOptions",

                    "-XX:+UnlockExperimentalVMOptions",

                    "-XX:+UseShenandoahGC",

                    "-XX:ShenandoahGCHeuristics=" + h,

                    "-XX:-" + b,

                    "-version"

            );

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

            output.shouldHaveExitValue(0);

        }

    }

}