/*

 * Copyright (c) 2018, 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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 */

/*

 * @test TestHeapDumpPath

 * @summary Test verifies that -XX:HeapDumpPath= supports directory as a parameter.

 * @library /test/lib

 * @run driver TestHeapDumpPath

 */

import jdk.test.lib.Asserts;

import jdk.test.lib.hprof.HprofParser;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

import java.io.File;

public class TestHeapDumpPath {

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

        if (args.length == 1) {

            try {

                Object[] oa = new Object[Integer.MAX_VALUE];

                throw new Error("OOME not triggered");

            } catch (OutOfMemoryError err) {

                return;

            }

        }

        testHeapDumpPath();

    }

    static void testHeapDumpPath() throws Exception {

        String heapdumpPath = "dumps";

        File dumpDirectory = new File(heapdumpPath);

        dumpDirectory.mkdir();

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+HeapDumpOnOutOfMemoryError",

                "-Xmx64m", "-XX:HeapDumpPath=" + heapdumpPath, TestHeapDumpPath.class.getName(), "OOME");

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

        output.stdoutShouldNotBeEmpty();

        output.shouldContain("Dumping heap");

        Asserts.assertFalse(dumpDirectory.listFiles().length == 0,

                "There is no dump files found in " + dumpDirectory );

        Asserts.assertTrue(dumpDirectory.listFiles().length == 1,

                "There are unexpected files in " + dumpDirectory

                        + ": " + String.join(",", dumpDirectory.list()) +".");

        File dump = dumpDirectory.listFiles()[0];

        Asserts.assertTrue(dump.exists() && dump.isFile(),

                "Could not find dump file " + dump.getAbsolutePath());

        HprofParser.parse(dump);

        System.out.println("PASSED");

    }

}