test/hotspot/jtreg/vmTestbase/nsk/jdi/VirtualMachine/mirrorOf_string/mirrorof_string001.java

/*
 * Copyright (c) 2000, 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.
 *
 * 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.
 */

package nsk.jdi.VirtualMachine.mirrorOf_string;

import nsk.share.*;
import nsk.share.jpda.*;
import nsk.share.jdi.*;

import com.sun.jdi.*;
import java.util.*;
import java.io.*;

/**
 * The test for the implementation of an object of the type     <BR>
 * VirtualMachine.                                              <BR>
 *                                                              <BR>
 * The test checks up that results of the method                <BR>
 * <code>com.sun.jdi.VirtualMachine.mirrorOf_string()</code>    <BR>
 * complies with the spec for                                   <BR>
 * <code>com.sun.jdi.StringValue</code> methods.                <BR>
 * <BR>
 * The cases for testing are as follows:                <BR>
 *   s2 = s_ref.value();                                <BR>
 *   doesn't throw ObjectCollectedException             <BR>
 *                                                      <BR>
 *  for String objects s1 and s2                        <BR>
 *  s_ref = vm.mirrorOf(s1); s1.compareTo(s2) == 0      <BR>
 *                                                      <BR>
 */

public class mirrorof_string001 {

    //----------------------------------------------------- templete section
    static final int PASSED = 0;
    static final int FAILED = 2;
    static final int PASS_BASE = 95;

    //----------------------------------------------------- templete parameters
    static final String
    sHeader1 = "\n==> nsk/jdi/VirtualMachine/mirrorOf_string/mirrorof_string001",
    sHeader2 = "--> mirrorof_string001: ",
    sHeader3 = "##> mirrorof_string001: ";

    //----------------------------------------------------- main method

    public static void main (String argv[]) {
        int result = run(argv, System.out);
        System.exit(result + PASS_BASE);
    }

    public static int run (String argv[], PrintStream out) {
        return new mirrorof_string001().runThis(argv, out);
    }

     //--------------------------------------------------   log procedures

    //private static boolean verbMode = false;

    private static Log  logHandler;

    private static void log1(String message) {
        logHandler.display(sHeader1 + message);
    }
    private static void log2(String message) {
        logHandler.display(sHeader2 + message);
    }
    private static void log3(String message) {
        logHandler.complain(sHeader3 + message);
    }

    //  ************************************************    test parameters

    private String debugeeName =
        "nsk.jdi.VirtualMachine.mirrorOf_string.mirrorof_string001a";

    //====================================================== test program

    static ArgumentHandler      argsHandler;
    static int                  testExitCode = PASSED;

    //------------------------------------------------------ common section

    private int runThis (String argv[], PrintStream out) {

        Debugee debugee;

        argsHandler     = new ArgumentHandler(argv);
        logHandler      = new Log(out, argsHandler);
        Binder binder   = new Binder(argsHandler, logHandler);

        if (argsHandler.verbose()) {
            debugee = binder.bindToDebugee(debugeeName + " -vbs");  // *** tp
        } else {
            debugee = binder.bindToDebugee(debugeeName);            // *** tp
        }

        IOPipe pipe     = new IOPipe(debugee);

        debugee.redirectStderr(out);
        log2("mirrorof_string001a debugee launched");
        debugee.resume();

        String line = pipe.readln();
        if ((line == null) || !line.equals("ready")) {
            log3("signal received is not 'ready' but: " + line);
            return FAILED;
        } else {
            log2("'ready' recieved");
        }

        VirtualMachine vm = debugee.VM();

    //------------------------------------------------------  testing section
        log1("      TESTING BEGINS");
        //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ variable part

        String s1 = "abc";
        String s2 = null;

        StringReference s_ref = vm.mirrorOf(s1);

        try {
            s2 = s_ref.value();
        } catch ( ObjectCollectedException e ) {
             log3("ERROR: 's2=s_ref.value' throws ObjectCollectedException");
             testExitCode = FAILED;
        }

        if (testExitCode != FAILED)
            if (s1.compareTo(s2) != 0) {
                log3("ERROR: strings are not equal");
                testExitCode = FAILED;
            }
        //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        log1("      TESTING ENDS");
    //--------------------------------------------------   test summary section

    //-------------------------------------------------    standard end section

        pipe.println("quit");
        log2("waiting for the debugee finish ...");
        debugee.waitFor();

        int status = debugee.getStatus();
        if (status != PASSED + PASS_BASE) {
            log3("debugee returned UNEXPECTED exit status: " +
                   status + " != PASS_BASE");
            testExitCode = FAILED;
        } else {
            log2("debugee returned expected exit status: " +
                   status + " == PASS_BASE");
        }

        if (testExitCode != PASSED) {
            logHandler.complain("TEST FAILED");
        }
        return testExitCode;
    }
}