/*

 * Copyright (c) 2000, 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

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

 * questions.

 */

/*

 * @test

 * @bug 4290640 4785473

 * @build package1.Class1 package2.Class2 package1.package3.Class3 Assert

 * @run main/othervm Assert

 * @summary Test the assertion facility

 * @author Mike McCloskey

 */

import package1.*;

import package2.*;

import package1.package3.*;

import java.io.*;

import java.util.Random;

public class Assert {

    private static Class1 testClass1;

    private static Class2 testClass2;

    private static Class3 testClass3;

    private static final  boolean debug = false;

    private static Random generator = new Random();

    /**

     * The first invocation of this test starts a loop which exhaustively tests

     * the object tree with all of its different settings.

     * There are 7 test objects in a tree that has 7 different places to set

     * assertions untouched/on/off so this tests 3^7 or 2187 different

     * configurations.

     *

     * This test spawns a new VM for each run because assertions are set on or

     * off at class load time. Once the class is loaded its assertion status

     * does not change.

     */

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

        // Switch values: 0=don't touch, 1=off, 2 = on

        int[] switches = new int[7];

        int switchSource = 0;

        if (args.length == 0) { // This is master version

            // This code is for an exhaustive test

            //while(switchSource < 2187) {

            //    int temp = switchSource++;

            // This code is for a weaker but faster test

            for(int x=0; x<100; x++) {

                int temp = generator.nextInt(2187);

                for(int i=0; i<7; i++) {

                    switches[i] = temp % 3;

                    temp = temp / 3;

                }

                // Spawn new VM and load classes

                String command = System.getProperty("java.home") +

                    File.separator + "bin" + File.separator + "java Assert";

                StringBuffer commandString = new StringBuffer(command);

                for(int j=0; j<7; j++)

                    commandString.append(" "+switches[j]);

                Process p = null;

                p = Runtime.getRuntime().exec(commandString.toString());

                if (debug) { // See output of test VMs

                    BufferedReader blah = new BufferedReader(

                                          new InputStreamReader(p.getInputStream()));

                    String outString = blah.readLine();

                    while (outString != null) {

                        System.out.println("from slave:"+outString);

                        outString = blah.readLine();

                    }

                }

                p.waitFor();

                int result = p.exitValue();

                if (debug) { // See which switch configs failed

                    if (result == 0) {

                        for(int k=6; k>=0; k--)

                            System.out.print(switches[k]);

                        System.out.println();

                    } else {

                        System.out.print("Nonzero Exit: ");

                        for(int k=6; k>=0; k--)

                            System.out.print(switches[k]);

                        System.out.println();

                    }

                } else {

                    if (result != 0) {

                        System.err.print("Nonzero Exit: ");

                        for(int k=6; k>=0; k--)

                            System.err.print(switches[k]);

                        System.err.println();

                        throw new RuntimeException("Assertion test failure.");

                    }

                }

            }

        } else { // This is a test spawn

            for(int i=0; i<7; i++)

                switches[i] = Integer.parseInt(args[i]);

            SetAssertionSwitches(switches);

            ConstructClassTree();

            TestClassTree(switches);

        }

    }

    /*

     * Activate/Deactivate the assertions in the tree according to the

     * specified switches.

     */

    private static void SetAssertionSwitches(int[] switches) {

        ClassLoader loader = ClassLoader.getSystemClassLoader();

        if (switches[0] != 0)

            loader.setDefaultAssertionStatus(switches[0]==2);

        if (switches[1] != 0)

            loader.setPackageAssertionStatus("package1", switches[1]==2);

        if (switches[2] != 0)

            loader.setPackageAssertionStatus("package2", switches[2]==2);

        if (switches[3] != 0)

            loader.setPackageAssertionStatus("package1.package3", switches[3]==2);

        if (switches[4] != 0)

            loader.setClassAssertionStatus("package1.Class1", switches[4]==2);

        if (switches[5] != 0)

            loader.setClassAssertionStatus("package2.Class2", switches[5]==2);

        if (switches[6] != 0)

            loader.setClassAssertionStatus("package1.package3.Class3", switches[6]==2);

    }

    /*

     * Verify that the assertions are activated or deactivated as specified

     * by the switches.

     */

    private static void TestClassTree(int[] switches) {

        // Class1 and anonymous inner class

        boolean assertsOn = (switches[4]==2) ? true : (switches[4]==1) ? false :

            (switches[1]==2) ? true : (switches[1]==1) ? false : (switches[0]==2) ?

            true: false;

        testClass1.testAssert(assertsOn);

        // Class1 inner class Class11

        assertsOn = (switches[4]==2) ? true : (switches[4]==1) ? false :

            (switches[1]==2) ? true : (switches[1]==1) ? false : (switches[0]==2) ?

            true: false;

        Class1.Class11.testAssert(assertsOn);

        // Class2

        assertsOn = (switches[5]==2) ? true : (switches[5]==1) ? false :

            (switches[2]==2) ? true : (switches[2]==1) ? false : (switches[0]==2) ?

            true: false;

        testClass2.testAssert(assertsOn);

        // Class3 and anonymous inner class

        assertsOn = (switches[6]==2) ? true : (switches[6]==1) ? false :

                    (switches[3]==2) ? true : (switches[3]==1) ? false :

                    (switches[1]==2) ? true : (switches[1]==1) ? false :

                    (switches[0]==2) ? true: false;

        testClass3.testAssert(assertsOn);

        // Class3 inner class Class31

        assertsOn = (switches[6]==2) ? true : (switches[6]==1) ? false :

                    (switches[3]==2) ? true : (switches[3]==1) ? false :

                    (switches[1]==2) ? true : (switches[1]==1) ? false :

                    (switches[0]==2) ? true : false;

        Class3.Class31.testAssert(assertsOn);

    }

    /*

     * Create the class tree to be tested. Each test run must reload the classes

     * of the tree since assertion status is determined at class load time.

     */

    private static void ConstructClassTree() {

        testClass1 = new Class1();

        testClass2 = new Class2();

        testClass3 = new Class3();

    }

}