--- jsr166/src/test/tck/AtomicMarkableReferenceTest.java 2010/08/25 00:07:03 1.14 +++ jsr166/src/test/tck/AtomicMarkableReferenceTest.java 2021/01/27 01:57:24 1.24 @@ -1,51 +1,53 @@ /* * 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()); + 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); - assertSame(one,ai.getReference()); + AtomicMarkableReference ai = new AtomicMarkableReference<>(one, false); + assertSame(one, ai.getReference()); assertFalse(ai.isMarked()); - AtomicMarkableReference a2 = new AtomicMarkableReference(null, true); + AtomicMarkableReference a2 = new AtomicMarkableReference<>(null, true); 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); - assertSame(one,ai.getReference()); + AtomicMarkableReference ai = new AtomicMarkableReference<>(one, false); + assertSame(one, ai.getReference()); assertFalse(ai.isMarked()); assertSame(one, ai.get(mark)); assertFalse(mark[0]); ai.set(two, false); - assertSame(two,ai.getReference()); + assertSame(two, ai.getReference()); assertFalse(ai.isMarked()); assertSame(two, ai.get(mark)); assertFalse(mark[0]); ai.set(one, true); - assertSame(one,ai.getReference()); + assertSame(one, ai.getReference()); assertTrue(ai.isMarked()); assertSame(one, ai.get(mark)); assertTrue(mark[0]); @@ -56,7 +58,7 @@ public class AtomicMarkableReferenceTest */ public void testAttemptMark() { boolean[] mark = new boolean[1]; - AtomicMarkableReference ai = new AtomicMarkableReference(one, false); + AtomicMarkableReference ai = new AtomicMarkableReference<>(one, false); assertFalse(ai.isMarked()); assertTrue(ai.attemptMark(one, true)); assertTrue(ai.isMarked()); @@ -70,7 +72,7 @@ public class AtomicMarkableReferenceTest */ public void testCompareAndSet() { boolean[] mark = new boolean[1]; - AtomicMarkableReference ai = new AtomicMarkableReference(one, false); + AtomicMarkableReference ai = new AtomicMarkableReference<>(one, false); assertSame(one, ai.get(mark)); assertFalse(ai.isMarked()); assertFalse(mark[0]); @@ -79,12 +81,12 @@ public class AtomicMarkableReferenceTest assertSame(two, ai.get(mark)); assertFalse(mark[0]); - assertTrue(ai.compareAndSet(two, m3, false, true)); - assertSame(m3, ai.get(mark)); + assertTrue(ai.compareAndSet(two, minusThree, false, true)); + assertSame(minusThree, ai.get(mark)); assertTrue(mark[0]); - assertFalse(ai.compareAndSet(two, m3, true, true)); - assertSame(m3, ai.get(mark)); + assertFalse(ai.compareAndSet(two, minusThree, true, true)); + assertSame(minusThree, ai.get(mark)); assertTrue(mark[0]); } @@ -93,7 +95,7 @@ public class AtomicMarkableReferenceTest * to succeed */ public void testCompareAndSetInMultipleThreads() throws Exception { - final AtomicMarkableReference ai = new AtomicMarkableReference(one, false); + final AtomicMarkableReference ai = new AtomicMarkableReference<>(one, false); Thread t = new Thread(new CheckedRunnable() { public void realRun() { while (!ai.compareAndSet(two, three, false, false)) @@ -104,7 +106,7 @@ public class AtomicMarkableReferenceTest assertTrue(ai.compareAndSet(one, two, false, false)); t.join(LONG_DELAY_MS); assertFalse(t.isAlive()); - assertSame(ai.getReference(), three); + assertSame(three, ai.getReference()); assertFalse(ai.isMarked()); } @@ -113,7 +115,7 @@ public class AtomicMarkableReferenceTest * to succeed */ public void testCompareAndSetInMultipleThreads2() throws Exception { - final AtomicMarkableReference ai = new AtomicMarkableReference(one, false); + final AtomicMarkableReference ai = new AtomicMarkableReference<>(one, false); Thread t = new Thread(new CheckedRunnable() { public void realRun() { while (!ai.compareAndSet(one, one, true, false)) @@ -124,7 +126,7 @@ public class AtomicMarkableReferenceTest assertTrue(ai.compareAndSet(one, one, false, true)); t.join(LONG_DELAY_MS); assertFalse(t.isAlive()); - assertSame(ai.getReference(), one); + assertSame(one, ai.getReference()); assertFalse(ai.isMarked()); } @@ -134,17 +136,17 @@ public class AtomicMarkableReferenceTest */ public void testWeakCompareAndSet() { boolean[] mark = new boolean[1]; - AtomicMarkableReference ai = new AtomicMarkableReference(one, false); + AtomicMarkableReference ai = new AtomicMarkableReference<>(one, false); assertSame(one, ai.get(mark)); assertFalse(ai.isMarked()); assertFalse(mark[0]); - while (!ai.weakCompareAndSet(one, two, false, false)); + do {} while (!ai.weakCompareAndSet(one, two, false, false)); assertSame(two, ai.get(mark)); assertFalse(mark[0]); - while (!ai.weakCompareAndSet(two, m3, false, true)); - assertSame(m3, ai.get(mark)); + do {} while (!ai.weakCompareAndSet(two, minusThree, false, true)); + assertSame(minusThree, ai.get(mark)); assertTrue(mark[0]); }