opcodes/src/test/java/jp/sourceforge/stigmata/birthmarks/OpcodeTest.java

   1 package jp.sourceforge.stigmata.birthmarks;
   2
   3 /*
   4  * $Id$
   5  */
   6
   7 import java.util.Iterator;
   8
   9 import org.junit.Assert;
  10 import org.junit.Before;
  11 import org.junit.Test;
  12 import org.objectweb.asm.Label;
  13
  14 /**
  15  *
  16  * @author Haruaki Tamada
  17  * @version $Revision$
  18  */
  19 public class OpcodeTest{
  20     private Opcode opcode;
  21
  22     @Before
  23     public void setup(){
  24         opcode = new Opcode(26, "iload_0", 0, 1, Opcode.Category.NORMAL);
  25     }
  26
  27     @Test
  28     public void testBasic(){
  29         Assert.assertEquals(26, opcode.getOpcode());
  30         Assert.assertEquals("iload_0", opcode.getName());
  31         Assert.assertEquals(0, opcode.getArgumentCount());
  32         Assert.assertEquals(1, opcode.getAct());
  33         Assert.assertEquals(Opcode.Category.NORMAL, opcode.getCategory());
  34     }
  35
  36     @Test
  37     public void testSelfConstructor(){
  38         Opcode o = new Opcode(opcode);
  39         Assert.assertEquals(26, o.getOpcode());
  40         Assert.assertEquals("iload_0", o.getName());
  41         Assert.assertEquals(0, o.getArgumentCount());
  42         Assert.assertEquals(1, o.getAct());
  43         Assert.assertEquals(Opcode.Category.NORMAL, o.getCategory());
  44     }
  45
  46     @Test(expected=IllegalStateException.class)
  47     public void testSetActThrowException(){
  48         opcode.setAct(1);
  49     }
  50
  51     @Test(expected=IllegalStateException.class)
  52     public void testAddLabelThrowException(){
  53         opcode.addLabel(new Label());
  54     }
  55
  56     @Test(expected=NullPointerException.class)
  57     public void testAddLabelNullPointer(){
  58         opcode.addLabel(null);
  59     }
  60
  61     @Test(expected=IllegalStateException.class)
  62     public void testSetLabelsThrowException(){
  63         opcode.setLabels(new Label[] { new Label() });
  64     }
  65
  66     @Test(expected=NullPointerException.class)
  67     public void testSetLabelsNullPointer1(){
  68         opcode.setLabels(null);
  69     }
  70
  71     @Test
  72     public void testAddLabel(){
  73         opcode = new Opcode(154, "ifne", 2, -1, "BRANCH");
  74         Label label1 = new Label();
  75         Label label2 = new Label();
  76         Label label3 = new Label();
  77
  78         opcode.addLabel(label1);
  79         opcode.addLabel(label2);
  80         opcode.addLabel(label3);
  81
  82         Assert.assertEquals(label1, opcode.getLabel(0));
  83         Assert.assertEquals(label2, opcode.getLabel(1));
  84         Assert.assertEquals(label3, opcode.getLabel(2));
  85
  86         Iterator<Label> iterator = opcode.labels();
  87         Assert.assertTrue(iterator.hasNext());
  88         Assert.assertEquals(label1, iterator.next());
  89         Assert.assertTrue(iterator.hasNext());
  90         Assert.assertEquals(label2, iterator.next());
  91         Assert.assertTrue(iterator.hasNext());
  92         Assert.assertEquals(label3, iterator.next());
  93         Assert.assertFalse(iterator.hasNext());
  94     }
  95
  96     @Test
  97     public void testSetLabels(){
  98         opcode = new Opcode(154, "ifne", 2, -1, "BRANCH");
  99         Label label1 = new Label();
 100         Label label2 = new Label();
 101         Label label3 = new Label();
 102
 103         opcode.addLabel(label1);
 104         opcode.setLabels(new Label[] { label1, label2, label3, });
 105
 106         Assert.assertEquals(label1, opcode.getLabel(0));
 107         Assert.assertEquals(label2, opcode.getLabel(1));
 108         Assert.assertEquals(label3, opcode.getLabel(2));
 109
 110         Iterator<Label> iterator = opcode.labels();
 111         Assert.assertTrue(iterator.hasNext());
 112         Assert.assertEquals(label1, iterator.next());
 113         Assert.assertTrue(iterator.hasNext());
 114         Assert.assertEquals(label2, iterator.next());
 115         Assert.assertTrue(iterator.hasNext());
 116         Assert.assertEquals(label3, iterator.next());
 117         Assert.assertFalse(iterator.hasNext());
 118     }
 119
 120     @Test(expected=NullPointerException.class)
 121     public void testSetLabelsThrownNullPointerException(){
 122         opcode = new Opcode(154, "ifne", 2, -1, "BRANCH");
 123
 124         opcode.setLabels(new Label[] { null, });
 125     }
 126
 127     /**
 128      * this test will be thrown IllegalStateException.
 129      * Because, IllegalStateException is checked before null check of array elements.
 130      */
 131     @Test(expected=IllegalStateException.class)
 132     public void testSetLabelsNullPointer2(){
 133         opcode.setLabels(new Label[] { null, });
 134     }
 135
 136     @Test
 137     public void testSetAct() throws Exception{
 138         opcode = new Opcode(182, "invokevirtual", 2, 0, "INVOKE");
 139         opcode.setAct(4);
 140     }
 141 }