/*

 * Copyright (c) 2001, 2015, 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

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

 * questions.

 */

/**

 *

 */

import com.sun.jdi.*;

import com.sun.jdi.event.*;

import com.sun.jdi.request.*;

import java.util.*;

    /********** target program **********/

class FramesTarg {

    static void foo3() {

        System.out.println("executing foo3");

    }

    static void foo2() {

        foo3();

    }

    static void foo1() {

        foo2();

    }

    public static void main(String[] args){

        System.out.println("Howdy!");

        foo1();

    }

}

    /********** test program **********/

public class FramesTest extends TestScaffold {

    ReferenceType targetClass;

    ThreadReference mainThread;

    static String[] expectedNames = {"foo3", "foo2", "foo1", "main"};

    FramesTest (String args[]) {

        super(args);

    }

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

        new FramesTest(args).startTests();

    }

    /********** test assist **********/

    void exceptionTest(int start, int length) {

        boolean gotException = false;

        try {

            mainThread.frames(start, length);

        } catch (IndexOutOfBoundsException exc) {

            gotException = true;

        } catch (Exception exc) {

            failure("unexpected exception thrown for: " +

                    "start = " + start + ", length = " + length +

                    " - " + exc);

            gotException = true;

        }

        if (!gotException) {

            failure("expected IndexOutOfBoundsException " +

                    "not thrown for: " +

                    "start = " + start + ", length = " + length);

        }

    }

    void nameTest(int start, int length) {

        try {

            List fs = mainThread.frames(start, length);

            if (fs.size() != length) {

                failure("wrong length for: " +

                        "start = " + start + ", length = " + length);

            }

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

                StackFrame sf = (StackFrame)(fs.get(i));

                String name = sf.location().method().name();

                String expected = expectedNames[start+i];

                if (!name.equals(expected)) {

                    failure("bad frame entry (" + start + "," + length +

                            ") - expected " + expected +

                            ", got " + name);

                }

            }

        } catch (Exception exc) {

            failure("unexpected exception thrown for: " +

                    "start = " + start + ", length = " + length +

                    " - " + exc);

        }

    }

    /********** test core **********/

    protected void runTests() throws Exception {

        /*

         * Get to the top of main()

         * to determine targetClass and mainThread

         */

        BreakpointEvent bpe = startToMain("FramesTarg");

        targetClass = bpe.location().declaringType();

        mainThread = bpe.thread();

        int initialSize = mainThread.frames().size();

        resumeTo("FramesTarg", "foo3", "()V");

        if (!mainThread.frame(0).location().method().name()

                        .equals("foo3")) {

            failure("frame failed");

        }

        if (mainThread.frames().size() != (initialSize + 3)) {

            failure("frames size failed");

        }

        if (mainThread.frames().size() != mainThread.frameCount()) {

            failure("frames size not equal to frameCount");

        }

        exceptionTest(-1, 1);

        exceptionTest(mainThread.frameCount(), 1);

        exceptionTest(0, -1);

        exceptionTest(0, -2);

        exceptionTest(0, mainThread.frameCount()+1);

        nameTest(0, 0);

        nameTest(0, 1);

        nameTest(0, 4);

        nameTest(2, 2);

        nameTest(1, 1);

        /*

         * resume until end

         */

        listenUntilVMDisconnect();

        /*

         * deal with results of test

         * if anything has called failure("foo") testFailed will be true

         */

        if (!testFailed) {

            println("FramesTest: passed");

        } else {

            throw new Exception("FramesTest: failed");

        }

    }

}