/*
 * Copyright (c) 2016, 2023, 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.
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 */

package gc;

/* @test TestVerifySubSet.java
 * @bug 8072725
 * @summary Test VerifySubSet option
 * @comment Generational ZGC can't use the generic Universe::verify
 *          because there's no guarantee that we will ever have
 *          a stable snapshot where all roots can be verified.
 * @requires vm.gc != "Z"
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 * @run main gc.TestVerifySubSet
 */

import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import java.util.ArrayList;
import java.util.Collections;
import jdk.test.lib.Utils;

class TestVerifySubSetRunSystemGC {
    public static void main(String args[]) throws Exception {
        System.gc();
    }
}

public class TestVerifySubSet {

    private static OutputAnalyzer runTest(String subset) throws Exception {
        ArrayList<String> vmOpts = new ArrayList<>();

        Collections.addAll(vmOpts, Utils.getFilteredTestJavaOpts("-Xlog.*"));
        Collections.addAll(vmOpts, new String[] {"-XX:+UnlockDiagnosticVMOptions",
                                                 "-XX:+VerifyBeforeGC",
                                                 "-XX:+VerifyAfterGC",
                                                 "-Xlog:gc+verify=debug",
                                                 "-XX:VerifySubSet="+subset,
                                                 TestVerifySubSetRunSystemGC.class.getName()});
        OutputAnalyzer output = ProcessTools.executeLimitedTestJava(vmOpts);

        System.out.println("Output:\n" + output.getOutput());
        return output;
    }

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

        OutputAnalyzer output;

        output = runTest("heap, threads, codecache, metaspace");
        output.shouldContain("Heap");
        output.shouldContain("Threads");
        output.shouldContain("CodeCache");
        output.shouldContain("MetaspaceUtils");
        output.shouldNotContain("SymbolTable");
        output.shouldNotContain("StringTable");
        output.shouldNotContain("SystemDictionary");
        output.shouldNotContain("CodeCache Oops");
        output.shouldHaveExitValue(0);

        output = runTest("hello, threads, codecache, metaspace");
        output.shouldContain("memory sub-system is unknown, please correct it");
        output.shouldNotContain("Threads");
        output.shouldNotContain("CodeCache");
        output.shouldNotContain("MetaspaceUtils");
        output.shouldHaveExitValue(1);
    }
}