/*

 * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.

 * 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.

 *

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

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 */

/*

 * @test CommandLineFlagCombo

 * @requires vm.cds.archived.java.heap

 * @comment This test explicitly chooses the type of GC to be used by sub-processes. It may conflict with the GC type set

 * via the -vmoptions command line option of JTREG. vm.gc==null will help the test case to discard the explicitly passed

 * vm options.

 * @requires (vm.gc=="null")

 * @summary Test command line flag combinations that

 *          could likely affect the behaviour of AppCDS

 * @library /test/lib

 * @modules jdk.jartool/sun.tools.jar

 * @build sun.hotspot.WhiteBox

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission

 * @compile test-classes/Hello.java

 * @run main/othervm/timeout=240 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. CommandLineFlagCombo

 */

import jdk.test.lib.BuildHelper;

import jdk.test.lib.Platform;

import jdk.test.lib.process.OutputAnalyzer;

import sun.hotspot.code.Compiler;

public class CommandLineFlagCombo {

    // shared base address test table

    private static final String[] testTable = {

        "-XX:+UseG1GC", "-XX:+UseSerialGC", "-XX:+UseParallelGC", "-XX:+UseConcMarkSweepGC",

        "-XX:+FlightRecorder",

        "-XX:+UseLargePages", // may only take effect on machines with large-pages

        "-XX:+UseCompressedClassPointers",

        "-XX:+UseCompressedOops",

        "-XX:ObjectAlignmentInBytes=16",

        "-XX:ObjectAlignmentInBytes=32",

        "-XX:ObjectAlignmentInBytes=64"

    };

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

        String appJar = JarBuilder.getOrCreateHelloJar();

        String classList[] = {"Hello"};

        for (String testEntry : testTable) {

            System.out.println("CommandLineFlagCombo = " + testEntry);

            if (skipTestCase(testEntry))

                continue;

            OutputAnalyzer dumpOutput = TestCommon.dump(appJar, classList, testEntry);

            if (!TestCommon.isDynamicArchive()) {

                TestCommon.checkDump(dumpOutput, "Loading classes to share");

            } else {

                if (testEntry.contains("ObjectAlignmentInBytes")) {

                   dumpOutput.shouldHaveExitValue(1)

                             .shouldMatch("The shared archive file's ObjectAlignmentInBytes of .* does not equal the current ObjectAlignmentInBytes of");

                } else {

                   TestCommon.checkDump(dumpOutput, "Loading classes to share");

                }

            }

            if ((TestCommon.isDynamicArchive() && !testEntry.contains("ObjectAlignmentInBytes")) ||

                !TestCommon.isDynamicArchive()) {

                OutputAnalyzer execOutput = TestCommon.exec(appJar, testEntry, "Hello");

                TestCommon.checkExec(execOutput, "Hello World");

            }

        }

        for (int i=0; i<2; i++) {

            String g1Flag, serialFlag;

            // Interned strings are supported only with G1GC. However, we should not crash if:

            // 0: archive has shared strings, but run time doesn't support shared strings

            // 1: archive has no shared strings, but run time supports shared strings

            String dump_g1Flag     = "-XX:" + (i == 0 ? "+" : "-") + "UseG1GC";

            String run_g1Flag      = "-XX:" + (i != 0 ? "+" : "-") + "UseG1GC";

            String dump_serialFlag = "-XX:" + (i != 0 ? "+" : "-") + "UseSerialGC";

            String run_serialFlag  = "-XX:" + (i == 0 ? "+" : "-") + "UseSerialGC";

            OutputAnalyzer dumpOutput = TestCommon.dump(

               appJar, classList, dump_g1Flag, dump_serialFlag);

            TestCommon.checkDump(dumpOutput, "Loading classes to share");

            OutputAnalyzer execOutput = TestCommon.exec(appJar, run_g1Flag, run_serialFlag, "Hello");

            TestCommon.checkExec(execOutput, "Hello World");

        }

    }

    private static boolean skipTestCase(String testEntry) throws Exception {

        if (Platform.is32bit())

        {

            if (testEntry.equals("-XX:+UseCompressedOops") ||

                testEntry.equals("-XX:+UseCompressedClassPointers") ||

                testEntry.contains("ObjectAlignmentInBytes") )

            {

                System.out.println("Test case not applicable on 32-bit platforms");

                return true;

            }

        }

        if (Compiler.isGraalEnabled() && testEntry.equals("-XX:+UseConcMarkSweepGC"))

        {

            System.out.println("Graal does not support CMS");

            return true;

        }

        return false;

    }

}