--- jsr166/src/test/tck/AtomicLongTest.java	2003/09/20 18:20:07	1.4
+++ jsr166/src/test/tck/AtomicLongTest.java	2009/11/02 20:28:31	1.11
@@ -1,8 +1,9 @@
 /*
- * Written by members of JCP JSR-166 Expert Group and released to the
- * public domain. Use, modify, and redistribute this code in any way
- * without acknowledgement. Other contributors include Andrew Wright,
- * Jeffrey Hayes, Pat Fischer, Mike Judd.
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/licenses/publicdomain
+ * Other contributors include Andrew Wright, Jeffrey Hayes,
+ * Pat Fisher, Mike Judd.
  */
 
 import junit.framework.*;
@@ -18,7 +19,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * constructor initializes to given value
      */
     public void testConstructor(){
         AtomicLong ai = new AtomicLong(1);
@@ -26,7 +27,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * default constructed initializes to zero
      */
     public void testConstructor2(){
         AtomicLong ai = new AtomicLong();
@@ -34,7 +35,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * get returns the last value set
      */
     public void testGetSet(){
         AtomicLong ai = new AtomicLong(1);
@@ -43,10 +44,24 @@ public class AtomicLongTest extends JSR1
 	assertEquals(2,ai.get());
 	ai.set(-3);
 	assertEquals(-3,ai.get());
-	
+
     }
+
+    /**
+     * get returns the last value lazySet in same thread
+     */
+    public void testGetLazySet(){
+        AtomicLong ai = new AtomicLong(1);
+	assertEquals(1,ai.get());
+	ai.lazySet(2);
+	assertEquals(2,ai.get());
+	ai.lazySet(-3);
+	assertEquals(-3,ai.get());
+
+    }
+
     /**
-     *
+     * compareAndSet succeeds in changing value if equal to expected else fails
      */
     public void testCompareAndSet(){
         AtomicLong ai = new AtomicLong(1);
@@ -60,7 +75,30 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * compareAndSet in one thread enables another waiting for value
+     * to succeed
+     */
+    public void testCompareAndSetInMultipleThreads() {
+        final AtomicLong ai = new AtomicLong(1);
+        Thread t = new Thread(new Runnable() {
+                public void run() {
+                    while(!ai.compareAndSet(2, 3)) Thread.yield();
+                }});
+        try {
+            t.start();
+            assertTrue(ai.compareAndSet(1, 2));
+            t.join(LONG_DELAY_MS);
+            assertFalse(t.isAlive());
+            assertEquals(ai.get(), 3);
+        }
+        catch(Exception e) {
+            unexpectedException();
+        }
+    }
+
+    /**
+     * repeated weakCompareAndSet succeeds in changing value when equal
+     * to expected
      */
     public void testWeakCompareAndSet(){
         AtomicLong ai = new AtomicLong(1);
@@ -72,7 +110,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * getAndSet returns previous value and sets to given value
      */
     public void testGetAndSet(){
         AtomicLong ai = new AtomicLong(1);
@@ -82,7 +120,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * getAndAdd returns previous value and adds given value
      */
     public void testGetAndAdd(){
         AtomicLong ai = new AtomicLong(1);
@@ -93,7 +131,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * getAndDecrement returns previous value and decrements
      */
     public void testGetAndDecrement(){
         AtomicLong ai = new AtomicLong(1);
@@ -103,7 +141,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * getAndIncrement returns previous value and increments
      */
     public void testGetAndIncrement(){
         AtomicLong ai = new AtomicLong(1);
@@ -117,7 +155,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * addAndGet adds given value to current, and returns current value
      */
     public void testAddAndGet(){
         AtomicLong ai = new AtomicLong(1);
@@ -128,7 +166,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * decrementAndGet decrements and returns current value
      */
     public void testDecrementAndGet(){
         AtomicLong ai = new AtomicLong(1);
@@ -139,7 +177,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * incrementAndGet increments and returns current value
      */
     public void testIncrementAndGet(){
         AtomicLong ai = new AtomicLong(1);
@@ -153,7 +191,7 @@ public class AtomicLongTest extends JSR1
     }
 
     /**
-     *
+     * a deserialized serialized atomic holds same value
      */
     public void testSerialization() {
         AtomicLong l = new AtomicLong();
@@ -174,4 +212,49 @@ public class AtomicLongTest extends JSR1
         }
     }
 
+    /**
+     * toString returns current value.
+     */
+    public void testToString() {
+        AtomicLong ai = new AtomicLong();
+        for (long i = -12; i < 6; ++i) {
+            ai.set(i);
+            assertEquals(ai.toString(), Long.toString(i));
+        }
+    }
+
+    /**
+     * longValue returns current value.
+     */
+    public void testLongValue() {
+        AtomicLong ai = new AtomicLong();
+        for (int i = -12; i < 6; ++i) {
+            ai.set(i);
+            assertEquals((long)i, ai.longValue());
+        }
+    }
+
+    /**
+     * floatValue returns current value.
+     */
+    public void testFloatValue() {
+        AtomicLong ai = new AtomicLong();
+        for (int i = -12; i < 6; ++i) {
+            ai.set(i);
+            assertEquals((float)i, ai.floatValue());
+        }
+    }
+
+    /**
+     * doubleValue returns current value.
+     */
+    public void testDoubleValue() {
+        AtomicLong ai = new AtomicLong();
+        for (int i = -12; i < 6; ++i) {
+            ai.set(i);
+            assertEquals((double)i, ai.doubleValue());
+        }
+    }
+
+
 }