/*

 * Copyright (c) 2005, 2014, 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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 */

import java.io.File;

import java.util.Arrays;

import jdk.testlibrary.Asserts;

import jdk.testlibrary.JDKToolLauncher;

import jdk.testlibrary.OutputAnalyzer;

import jdk.testlibrary.ProcessTools;

/* @test

 * @bug 5102009

 * @summary Sanity test of jhat functionality

 * @library /lib/testlibrary

 * @build jdk.testlibarary.*

 * @compile -g HelloWorld.java

 * @run main HatHeapDump1Test

 */

public class HatHeapDump1Test {

    private static final String TEST_CLASSES = System.getProperty("test.classes", ".");

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

        String className = "HelloWorld";

        File dumpFile = new File(className + ".hdump");

        // Generate a heap dump

        ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder("-cp",

                TEST_CLASSES,

                "-Xcheck:jni",

                "-Xverify:all",

                "-agentlib:hprof=heap=dump,format=b,file=" + dumpFile.getAbsolutePath(),

                className);

        System.out.println(output.getOutput());

        output.shouldHaveExitValue(0);

        output.shouldContain("Dumping Java heap ... done");

        Asserts.assertTrue(dumpFile.exists() && dumpFile.isFile(), "Invalid dump file " + dumpFile.getAbsolutePath());

        // Run jhat to analyze the heap dump

        output = jhat("-debug", "2", dumpFile.getAbsolutePath());

        output.shouldHaveExitValue(0);

        output.shouldContain("Snapshot resolved");

        output.shouldContain("-debug 2 was used");

        output.shouldNotContain("ERROR");

        dumpFile.delete();

    }

    private static OutputAnalyzer jhat(String... toolArgs) throws Exception {

        JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhat");

        if (toolArgs != null) {

            for (String toolArg : toolArgs) {

                launcher.addToolArg(toolArg);

            }

        }

        ProcessBuilder processBuilder = new ProcessBuilder();

        processBuilder.command(launcher.getCommand());

        System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", ""));

        System.out.println(output.getOutput());

        return output;

    }

}