01: //
02: // Copyright (C) 2005 United States Government as represented by the
03: // Administrator of the National Aeronautics and Space Administration
04: // (NASA). All Rights Reserved.
05: //
06: // This software is distributed under the NASA Open Source Agreement
07: // (NOSA), version 1.3. The NOSA has been approved by the Open Source
08: // Initiative. See the file NOSA-1.3-JPF at the top of the distribution
09: // directory tree for the complete NOSA document.
10: //
11: // THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
12: // KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
13: // LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
14: // SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
15: // A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
16: // THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
17: // DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
18: //
19: package gov.nasa.jpf.mc;
20:
21: import gov.nasa.jpf.jvm.Verify;
22:
23: /**
24: * test of gov.nasa.jpf.jvm.Verify nondeterministic data initailization
25: */
26: public class TestRandom {
27: public static void main(String[] args) {
28: TestRandom t = new TestRandom();
29:
30: if (args.length > 0) {
31: // just run the specified tests
32: for (int i = 0; i < args.length; i++) {
33: String func = args[i];
34:
35: // note that we don't use reflection here because this would
36: // blow up execution/test scope under JPF
37: if ("testRandom".equals(func)) {
38: int n = 3;
39:
40: if ((i + 1) < args.length) {
41: i++;
42: n = Integer.parseInt(args[i]);
43: }
44:
45: t.testRandom(n);
46: } else {
47: throw new IllegalArgumentException(
48: "unknown test function");
49: }
50: }
51: } else {
52: // that's mainly for our standalone test verification
53: t.testRandom(3);
54: }
55: }
56:
57: void testRandom(int n) {
58: int i = Verify.random(n); // we should backtrack 0..n times to this location
59: Verify.incrementCounter(0); // counter '0' should have value (n+1) after JPF is done
60: System.out.println(i);
61: }
62: }
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