SF.net SVN: jikesrvm:[15726] rvmroot/trunk/testing/tests/mmtk/src/org/mmtk

[rgarner]

Revision: 15726
          http://jikesrvm.svn.sourceforge.net/jikesrvm/?rev=15726&view=rev
Author:   rgarner
Date:     2009-07-16 23:42:40 +0000 (Thu, 16 Jul 2009)

Log Message:
-----------
Unit test for the MMTk Harness' HeapEntry class

Added Paths:
-----------
    rvmroot/trunk/testing/tests/mmtk/src/org/mmtk/harness/
    rvmroot/trunk/testing/tests/mmtk/src/org/mmtk/harness/sanity/
    rvmroot/trunk/testing/tests/mmtk/src/org/mmtk/harness/sanity/HeapEntryTest.java

Added: rvmroot/trunk/testing/tests/mmtk/src/org/mmtk/harness/sanity/HeapEntryTest.java
===================================================================
--- rvmroot/trunk/testing/tests/mmtk/src/org/mmtk/harness/sanity/HeapEntryTest.java                        (rev 0)
+++ rvmroot/trunk/testing/tests/mmtk/src/org/mmtk/harness/sanity/HeapEntryTest.java 2009-07-16 23:42:40 UTC (rev 15726)
@@ -0,0 +1,79 @@
+package org.mmtk.harness.sanity;
+
+import static org.junit.Assert.*;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.vmmagic.unboxed.Address;
+import org.vmmagic.unboxed.ObjectReference;
+import org.vmmagic.unboxed.ArchitecturalWord;
+
+public class HeapEntryTest {
+
+  @BeforeClass
+  public static void setUpBeforeClass() throws Exception {
+    ArchitecturalWord.init();
+  }
+
+  @Test
+  public void testHashCode() {
+    assertEquals(961,new HeapEntry(ObjectReference.nullReference(),0).hashCode());
+    assertEquals(992,new HeapEntry(ObjectReference.nullReference(),1).hashCode());
+    assertEquals(963,new HeapEntry(Address.fromIntSignExtend(8).toObjectReference(),0).hashCode());
+    assertEquals(994,new HeapEntry(Address.fromIntSignExtend(8).toObjectReference(),1).hashCode());
+  }
+
+  @Test
+  public void testIsRootReachable() {
+    fail("Not yet implemented");
+  }
+
+  @Test
+  public void testGetRefCount() {
+    fail("Not yet implemented");
+  }
+
+  @Test
+  public void testIncRefCount() {
+    fail("Not yet implemented");
+  }
+
+  @Test
+  public void testSetRootReachable() {
+    fail("Not yet implemented");
+  }
+
+  @Test
+  public void testEqualsObject() {
+    ObjectReference[] references = new ObjectReference[] {
+        ObjectReference.nullReference(),
+        Address.fromIntSignExtend(0x4567890).toObjectReference()
+    };
+    int[] ids = new int[] { 0,1,2,3,4 };
+    HeapEntry[] left = new HeapEntry[references.length*ids.length];
+    HeapEntry[] right = new HeapEntry[references.length*ids.length];
+
+    for (int i=0; i < references.length; i++) {
+      for (int j=0; j < ids.length; j++) {
+        left[i*ids.length+j] = new HeapEntry(references[i],ids[j]);
+        right[i*ids.length+j] = new HeapEntry(references[i],ids[j]);
+      }
+    }
+
+    for (int i=0; i < left.length; i++) {
+      for (int j=0; j < left.length; j++) {
+        if (i == j) {
+          assertEquals(left[i],right[j]);
+        } else {
+          assertFalse(left[i].equals(right[j]));
+        }
+      }
+    }
+  }
+
+  @Test
+  public void testCompareTo() {
+    fail("Not yet implemented");
+  }
+
+}


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