--- jsr166/src/test/tck/AtomicMarkableReferenceTest.java 2009/11/17 03:12:51 1.10 +++ jsr166/src/test/tck/AtomicMarkableReferenceTest.java 2015/04/25 04:55:30 1.22 @@ -1,54 +1,55 @@ /* * 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 + * http://creativecommons.org/publicdomain/zero/1.0/ * Other contributors include Andrew Wright, Jeffrey Hayes, * Pat Fisher, Mike Judd. */ -import junit.framework.*; -import java.util.concurrent.atomic.*; +import java.util.concurrent.atomic.AtomicMarkableReference; + +import junit.framework.Test; +import junit.framework.TestSuite; public class AtomicMarkableReferenceTest extends JSR166TestCase { - public static void main (String[] args) { - junit.textui.TestRunner.run (suite()); + public static void main(String[] args) { + main(suite(), args); } public static Test suite() { return new TestSuite(AtomicMarkableReferenceTest.class); } /** - * constructor initializes to given reference and mark + * constructor initializes to given reference and mark */ public void testConstructor() { AtomicMarkableReference ai = new AtomicMarkableReference(one, false); - assertEquals(one,ai.getReference()); - assertFalse(ai.isMarked()); + assertSame(one, ai.getReference()); + assertFalse(ai.isMarked()); AtomicMarkableReference a2 = new AtomicMarkableReference(null, true); - assertNull(a2.getReference()); - assertTrue(a2.isMarked()); - + assertNull(a2.getReference()); + assertTrue(a2.isMarked()); } /** - * get returns the last values of reference and mark set + * get returns the last values of reference and mark set */ public void testGetSet() { boolean[] mark = new boolean[1]; AtomicMarkableReference ai = new AtomicMarkableReference(one, false); - assertEquals(one,ai.getReference()); - assertFalse(ai.isMarked()); - assertEquals(one, ai.get(mark)); - assertFalse(mark[0]); - ai.set(two, false); - assertEquals(two,ai.getReference()); - assertFalse(ai.isMarked()); - assertEquals(two, ai.get(mark)); - assertFalse(mark[0]); - ai.set(one, true); - assertEquals(one,ai.getReference()); - assertTrue(ai.isMarked()); - assertEquals(one, ai.get(mark)); + assertSame(one, ai.getReference()); + assertFalse(ai.isMarked()); + assertSame(one, ai.get(mark)); + assertFalse(mark[0]); + ai.set(two, false); + assertSame(two, ai.getReference()); + assertFalse(ai.isMarked()); + assertSame(two, ai.get(mark)); + assertFalse(mark[0]); + ai.set(one, true); + assertSame(one, ai.getReference()); + assertTrue(ai.isMarked()); + assertSame(one, ai.get(mark)); assertTrue(mark[0]); } @@ -60,8 +61,8 @@ public class AtomicMarkableReferenceTest AtomicMarkableReference ai = new AtomicMarkableReference(one, false); assertFalse(ai.isMarked()); assertTrue(ai.attemptMark(one, true)); - assertTrue(ai.isMarked()); - assertEquals(one, ai.get(mark)); + assertTrue(ai.isMarked()); + assertSame(one, ai.get(mark)); assertTrue(mark[0]); } @@ -72,21 +73,21 @@ public class AtomicMarkableReferenceTest public void testCompareAndSet() { boolean[] mark = new boolean[1]; AtomicMarkableReference ai = new AtomicMarkableReference(one, false); - assertEquals(one, ai.get(mark)); + assertSame(one, ai.get(mark)); assertFalse(ai.isMarked()); - assertFalse(mark[0]); + assertFalse(mark[0]); assertTrue(ai.compareAndSet(one, two, false, false)); - assertEquals(two, ai.get(mark)); - assertFalse(mark[0]); + assertSame(two, ai.get(mark)); + assertFalse(mark[0]); assertTrue(ai.compareAndSet(two, m3, false, true)); - assertEquals(m3, ai.get(mark)); - assertTrue(mark[0]); + assertSame(m3, ai.get(mark)); + assertTrue(mark[0]); assertFalse(ai.compareAndSet(two, m3, true, true)); - assertEquals(m3, ai.get(mark)); - assertTrue(mark[0]); + assertSame(m3, ai.get(mark)); + assertTrue(mark[0]); } /** @@ -95,16 +96,17 @@ public class AtomicMarkableReferenceTest */ public void testCompareAndSetInMultipleThreads() throws Exception { final AtomicMarkableReference ai = new AtomicMarkableReference(one, false); - Thread t = new Thread(new Runnable() { - public void run() { - while (!ai.compareAndSet(two, three, false, false)) Thread.yield(); - }}); + Thread t = new Thread(new CheckedRunnable() { + public void realRun() { + while (!ai.compareAndSet(two, three, false, false)) + Thread.yield(); + }}); t.start(); assertTrue(ai.compareAndSet(one, two, false, false)); t.join(LONG_DELAY_MS); assertFalse(t.isAlive()); - assertEquals(ai.getReference(), three); + assertSame(three, ai.getReference()); assertFalse(ai.isMarked()); } @@ -114,16 +116,17 @@ public class AtomicMarkableReferenceTest */ public void testCompareAndSetInMultipleThreads2() throws Exception { final AtomicMarkableReference ai = new AtomicMarkableReference(one, false); - Thread t = new Thread(new Runnable() { - public void run() { - while (!ai.compareAndSet(one, one, true, false)) Thread.yield(); - }}); + Thread t = new Thread(new CheckedRunnable() { + public void realRun() { + while (!ai.compareAndSet(one, one, true, false)) + Thread.yield(); + }}); t.start(); assertTrue(ai.compareAndSet(one, one, false, true)); t.join(LONG_DELAY_MS); assertFalse(t.isAlive()); - assertEquals(ai.getReference(), one); + assertSame(one, ai.getReference()); assertFalse(ai.isMarked()); } @@ -134,17 +137,17 @@ public class AtomicMarkableReferenceTest public void testWeakCompareAndSet() { boolean[] mark = new boolean[1]; AtomicMarkableReference ai = new AtomicMarkableReference(one, false); - assertEquals(one, ai.get(mark)); + assertSame(one, ai.get(mark)); assertFalse(ai.isMarked()); - assertFalse(mark[0]); + assertFalse(mark[0]); - while (!ai.weakCompareAndSet(one, two, false, false)); - assertEquals(two, ai.get(mark)); - assertFalse(mark[0]); + do {} while (!ai.weakCompareAndSet(one, two, false, false)); + assertSame(two, ai.get(mark)); + assertFalse(mark[0]); - while (!ai.weakCompareAndSet(two, m3, false, true)); - assertEquals(m3, ai.get(mark)); - assertTrue(mark[0]); + do {} while (!ai.weakCompareAndSet(two, m3, false, true)); + assertSame(m3, ai.get(mark)); + assertTrue(mark[0]); } }