Mercurial > hg > Members > kono > jpf-core

comparison src/tests/gov/nasa/jpf/test/basic/InstructionFactoryTest.java @ 0:61d41facf527

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
parents
children
comparison
equal deleted inserted replaced
-1:000000000000 0:61d41facf527
1 /*
2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
4 * All rights reserved.
5 *
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0.
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package gov.nasa.jpf.test.basic;
20
21 import gov.nasa.jpf.Config;
22 import gov.nasa.jpf.util.test.TestJPF;
23 import gov.nasa.jpf.vm.Instruction;
24 import gov.nasa.jpf.vm.StackFrame;
25 import gov.nasa.jpf.vm.ThreadInfo;
26
27 import org.junit.Test;
28
29 /**
30 * basic test for InstructionFactories
31 */
32 public class InstructionFactoryTest extends TestJPF {
33
34 /**
35 * Add double
36 * ..., value1, value2 => ..., result
37 */
38 public static class DADD extends gov.nasa.jpf.jvm.bytecode.DADD {
39 @Override
40 public Instruction execute (ThreadInfo ti) {
41 StackFrame frame = ti.getModifiableTopFrame();
42
43 double v1 = frame.popDouble();
44 double v2 = frame.popDouble();
45
46 double r = v1 + v2;
47 System.out.printf("DADD %f + %f => %f\n", v1, v2, r);
48
49 System.out.println(" ..but we negate it just for kicks..");
50 r = -r;
51
52 frame.pushDouble(r);
53
54 return getNext(ti);
55 }
56 }
57
58 public static class MyInsnFactory extends gov.nasa.jpf.jvm.bytecode.InstructionFactory {
59 public MyInsnFactory (Config conf){
60 // nothing here
61 }
62
63 @Override
64 public Instruction dadd() {
65 return new DADD();
66 }
67 }
68
69 @Test
70 public void testDadd() {
71 if (verifyNoPropertyViolation("+jvm.insn_factory.class=.test.basic.InstructionFactoryTest$MyInsnFactory")) {
72 double a = 41.0;
73 double b = a + 1.0;
74 System.out.print("b=");
75 System.out.println(b);
76 assertTrue( b < 0); // since we used our own (twisted) DADD
77 }
78 }
79 }