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/*
* Copyright (c) 2000, 2020, 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
* @key randomness
*/
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 the controller
// 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 BufferedReader:"+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();
}
}
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