wsp/src/test/java/jp/sourceforge/stigmata/birthmarks/wsp/StackPatternBasedBirthmarkElementTest.java

   1 package jp.sourceforge.stigmata.birthmarks.wsp;
   2
   3 import jp.sourceforge.stigmata.cflib.Opcode;
   4
   5 import org.junit.Assert;
   6 import org.junit.Before;
   7 import org.junit.Test;
   8
   9 /**
  10  *
  11  * @author Haruaki Tamada
  12  * @version $Revision$
  13  */
  14 public class StackPatternBasedBirthmarkElementTest{
  15     private StackPatternBasedBirthmarkElement element;
  16
  17     @Before
  18     public void setup(){
  19         CurrentDepth[] depthList = new CurrentDepth[7];
  20
  21         depthList[0] = new CurrentDepth(1, new WSPOpcode( 26, "iload_0",      0,  1, Opcode.Category.LOAD, 7));
  22         depthList[1] = new CurrentDepth(2, new WSPOpcode( 26, "iload_0",      0,  1, Opcode.Category.LOAD, 7));
  23         depthList[2] = new CurrentDepth(3, new WSPOpcode(  4, "iconst_1",     0,  1, Opcode.Category.CONSTANT, 1));
  24         depthList[3] = new CurrentDepth(2, new WSPOpcode(100, "isub",         0, -1, Opcode.Category.SUBTRACT, 4));
  25         depthList[4] = new CurrentDepth(2, new WSPOpcode(184, "invokestatic", 2,  0, Opcode.Category.INVOKE, 1));
  26         depthList[5] = new CurrentDepth(1, new WSPOpcode(104, "imul",         0, -1, Opcode.Category.MULTIPLY, 6));
  27         depthList[6] = new CurrentDepth(0, new WSPOpcode(172, "ireturn",      0, -1, Opcode.Category.RETURN, 2));
  28
  29         element = new StackPatternBasedBirthmarkElement(depthList);
  30     }
  31
  32     @Test
  33     public void testBasic() throws Exception{
  34         Assert.assertEquals(7, element.getLength());
  35         Assert.assertEquals(28, element.getWeight());
  36
  37         Assert.assertEquals(1, element.getDepth(0).getDepth());
  38         Assert.assertEquals(2, element.getDepth(1).getDepth());
  39         Assert.assertEquals(3, element.getDepth(2).getDepth());
  40         Assert.assertEquals(2, element.getDepth(3).getDepth());
  41         Assert.assertEquals(2, element.getDepth(4).getDepth());
  42         Assert.assertEquals(1, element.getDepth(5).getDepth());
  43         Assert.assertEquals(0, element.getDepth(6).getDepth());
  44     }
  45
  46     @Test
  47     public void testBuildFromString() throws Exception{
  48         StackPatternBasedBirthmarkElement element2 = new StackPatternBasedBirthmarkElement(element.toString());
  49
  50         Assert.assertEquals(7, element2.getLength());
  51         Assert.assertEquals(28, element2.getWeight());
  52
  53         Assert.assertEquals(1, element2.getDepth(0).getDepth());
  54         Assert.assertEquals(2, element2.getDepth(1).getDepth());
  55         Assert.assertEquals(3, element2.getDepth(2).getDepth());
  56         Assert.assertEquals(2, element2.getDepth(3).getDepth());
  57         Assert.assertEquals(2, element2.getDepth(4).getDepth());
  58         Assert.assertEquals(1, element2.getDepth(5).getDepth());
  59         Assert.assertEquals(0, element2.getDepth(6).getDepth());
  60     }
  61
  62     @Test
  63     public void testCalculateWeightedCommonSubsequence(){
  64         CurrentDepth[] depthList = new CurrentDepth[10];
  65         depthList[0] = new CurrentDepth(1, new WSPOpcode( 26, "iload_0",      0,  1, Opcode.Category.LOAD, 7));
  66         depthList[1] = new CurrentDepth(2, new WSPOpcode(  4, "iconst_1",     0,  1, Opcode.Category.CONSTANT, 1));
  67         depthList[2] = new CurrentDepth(1, new WSPOpcode(100, "isub",         0, -1, Opcode.Category.SUBTRACT, 4));
  68         depthList[3] = new CurrentDepth(1, new WSPOpcode(184, "invokestatic", 2,  0, Opcode.Category.INVOKE, 1));
  69         depthList[4] = new CurrentDepth(2, new WSPOpcode( 26, "iload_0",      0,  1, Opcode.Category.LOAD, 7));
  70         depthList[5] = new CurrentDepth(3, new WSPOpcode(  5, "iconst_2",     0,  1, Opcode.Category.CONSTANT, 1));
  71         depthList[6] = new CurrentDepth(2, new WSPOpcode(100, "isub",         0, -1, Opcode.Category.SUBTRACT, 4));
  72         depthList[7] = new CurrentDepth(2, new WSPOpcode(184, "invokestatic", 2,  0, Opcode.Category.INVOKE, 1));
  73         depthList[8] = new CurrentDepth(1, new WSPOpcode( 96, "iadd",         0, -1, Opcode.Category.ADD, 3));
  74         depthList[9] = new CurrentDepth(0, new WSPOpcode(172, "ireturn",      0, -1, Opcode.Category.RETURN, 2));
  75         StackPatternBasedBirthmarkElement pattern2 = new StackPatternBasedBirthmarkElement(depthList);
  76
  77         Assert.assertEquals(21, element.getWeight(pattern2));
  78         Assert.assertEquals(21, pattern2.getWeight(element));
  79     }
  80 }