--- jsr166/src/test/tck/AtomicLongTest.java 2009/11/21 02:07:26 1.16 +++ jsr166/src/test/tck/AtomicLongTest.java 2011/08/09 04:49:38 1.25 @@ -1,29 +1,34 @@ /* * 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.io.*; +import java.util.concurrent.atomic.AtomicLong; public class AtomicLongTest extends JSR166TestCase { - public static void main (String[] args) { - junit.textui.TestRunner.run (suite()); + public static void main(String[] args) { + junit.textui.TestRunner.run(suite()); } public static Test suite() { return new TestSuite(AtomicLongTest.class); } + final long[] VALUES = { + Long.MIN_VALUE, + Integer.MIN_VALUE, -1, 0, 1, 42, Integer.MAX_VALUE, + Long.MAX_VALUE, + }; + /** * constructor initializes to given value */ public void testConstructor() { AtomicLong ai = new AtomicLong(1); - assertEquals(1,ai.get()); + assertEquals(1, ai.get()); } /** @@ -31,7 +36,7 @@ public class AtomicLongTest extends JSR1 */ public void testConstructor2() { AtomicLong ai = new AtomicLong(); - assertEquals(0,ai.get()); + assertEquals(0, ai.get()); } /** @@ -39,12 +44,11 @@ public class AtomicLongTest extends JSR1 */ public void testGetSet() { AtomicLong ai = new AtomicLong(1); - assertEquals(1,ai.get()); + assertEquals(1, ai.get()); ai.set(2); - assertEquals(2,ai.get()); + assertEquals(2, ai.get()); ai.set(-3); - assertEquals(-3,ai.get()); - + assertEquals(-3, ai.get()); } /** @@ -52,12 +56,11 @@ public class AtomicLongTest extends JSR1 */ public void testGetLazySet() { AtomicLong ai = new AtomicLong(1); - assertEquals(1,ai.get()); + assertEquals(1, ai.get()); ai.lazySet(2); - assertEquals(2,ai.get()); + assertEquals(2, ai.get()); ai.lazySet(-3); - assertEquals(-3,ai.get()); - + assertEquals(-3, ai.get()); } /** @@ -65,13 +68,13 @@ public class AtomicLongTest extends JSR1 */ public void testCompareAndSet() { AtomicLong ai = new AtomicLong(1); - assertTrue(ai.compareAndSet(1,2)); - assertTrue(ai.compareAndSet(2,-4)); - assertEquals(-4,ai.get()); - assertFalse(ai.compareAndSet(-5,7)); - assertFalse((7 == ai.get())); - assertTrue(ai.compareAndSet(-4,7)); - assertEquals(7,ai.get()); + assertTrue(ai.compareAndSet(1, 2)); + assertTrue(ai.compareAndSet(2, -4)); + assertEquals(-4, ai.get()); + assertFalse(ai.compareAndSet(-5, 7)); + assertEquals(-4, ai.get()); + assertTrue(ai.compareAndSet(-4, 7)); + assertEquals(7, ai.get()); } /** @@ -90,7 +93,7 @@ public class AtomicLongTest extends JSR1 assertTrue(ai.compareAndSet(1, 2)); t.join(LONG_DELAY_MS); assertFalse(t.isAlive()); - assertEquals(ai.get(), 3); + assertEquals(3, ai.get()); } /** @@ -99,11 +102,11 @@ public class AtomicLongTest extends JSR1 */ public void testWeakCompareAndSet() { AtomicLong ai = new AtomicLong(1); - while (!ai.weakCompareAndSet(1,2)); - while (!ai.weakCompareAndSet(2,-4)); - assertEquals(-4,ai.get()); - while (!ai.weakCompareAndSet(-4,7)); - assertEquals(7,ai.get()); + while (!ai.weakCompareAndSet(1, 2)); + while (!ai.weakCompareAndSet(2, -4)); + assertEquals(-4, ai.get()); + while (!ai.weakCompareAndSet(-4, 7)); + assertEquals(7, ai.get()); } /** @@ -111,9 +114,9 @@ public class AtomicLongTest extends JSR1 */ public void testGetAndSet() { AtomicLong ai = new AtomicLong(1); - assertEquals(1,ai.getAndSet(0)); - assertEquals(0,ai.getAndSet(-10)); - assertEquals(-10,ai.getAndSet(1)); + assertEquals(1, ai.getAndSet(0)); + assertEquals(0, ai.getAndSet(-10)); + assertEquals(-10, ai.getAndSet(1)); } /** @@ -121,10 +124,10 @@ public class AtomicLongTest extends JSR1 */ public void testGetAndAdd() { AtomicLong ai = new AtomicLong(1); - assertEquals(1,ai.getAndAdd(2)); - assertEquals(3,ai.get()); - assertEquals(3,ai.getAndAdd(-4)); - assertEquals(-1,ai.get()); + assertEquals(1, ai.getAndAdd(2)); + assertEquals(3, ai.get()); + assertEquals(3, ai.getAndAdd(-4)); + assertEquals(-1, ai.get()); } /** @@ -132,9 +135,9 @@ public class AtomicLongTest extends JSR1 */ public void testGetAndDecrement() { AtomicLong ai = new AtomicLong(1); - assertEquals(1,ai.getAndDecrement()); - assertEquals(0,ai.getAndDecrement()); - assertEquals(-1,ai.getAndDecrement()); + assertEquals(1, ai.getAndDecrement()); + assertEquals(0, ai.getAndDecrement()); + assertEquals(-1, ai.getAndDecrement()); } /** @@ -142,13 +145,13 @@ public class AtomicLongTest extends JSR1 */ public void testGetAndIncrement() { AtomicLong ai = new AtomicLong(1); - assertEquals(1,ai.getAndIncrement()); - assertEquals(2,ai.get()); + assertEquals(1, ai.getAndIncrement()); + assertEquals(2, ai.get()); ai.set(-2); - assertEquals(-2,ai.getAndIncrement()); - assertEquals(-1,ai.getAndIncrement()); - assertEquals(0,ai.getAndIncrement()); - assertEquals(1,ai.get()); + assertEquals(-2, ai.getAndIncrement()); + assertEquals(-1, ai.getAndIncrement()); + assertEquals(0, ai.getAndIncrement()); + assertEquals(1, ai.get()); } /** @@ -156,10 +159,10 @@ public class AtomicLongTest extends JSR1 */ public void testAddAndGet() { AtomicLong ai = new AtomicLong(1); - assertEquals(3,ai.addAndGet(2)); - assertEquals(3,ai.get()); - assertEquals(-1,ai.addAndGet(-4)); - assertEquals(-1,ai.get()); + assertEquals(3, ai.addAndGet(2)); + assertEquals(3, ai.get()); + assertEquals(-1, ai.addAndGet(-4)); + assertEquals(-1, ai.get()); } /** @@ -167,10 +170,10 @@ public class AtomicLongTest extends JSR1 */ public void testDecrementAndGet() { AtomicLong ai = new AtomicLong(1); - assertEquals(0,ai.decrementAndGet()); - assertEquals(-1,ai.decrementAndGet()); - assertEquals(-2,ai.decrementAndGet()); - assertEquals(-2,ai.get()); + assertEquals(0, ai.decrementAndGet()); + assertEquals(-1, ai.decrementAndGet()); + assertEquals(-2, ai.decrementAndGet()); + assertEquals(-2, ai.get()); } /** @@ -178,31 +181,27 @@ public class AtomicLongTest extends JSR1 */ public void testIncrementAndGet() { AtomicLong ai = new AtomicLong(1); - assertEquals(2,ai.incrementAndGet()); - assertEquals(2,ai.get()); + assertEquals(2, ai.incrementAndGet()); + assertEquals(2, ai.get()); ai.set(-2); - assertEquals(-1,ai.incrementAndGet()); - assertEquals(0,ai.incrementAndGet()); - assertEquals(1,ai.incrementAndGet()); - assertEquals(1,ai.get()); + assertEquals(-1, ai.incrementAndGet()); + assertEquals(0, ai.incrementAndGet()); + assertEquals(1, ai.incrementAndGet()); + assertEquals(1, ai.get()); } /** * a deserialized serialized atomic holds same value */ public void testSerialization() throws Exception { - AtomicLong l = new AtomicLong(); - - l.set(-22); - ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); - ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); - out.writeObject(l); - out.close(); - - ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); - ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); - AtomicLong r = (AtomicLong) in.readObject(); - assertEquals(l.get(), r.get()); + AtomicLong x = new AtomicLong(); + AtomicLong y = serialClone(x); + assertTrue(x != y); + x.set(-22); + AtomicLong z = serialClone(x); + assertEquals(-22, x.get()); + assertEquals(0, y.get()); + assertEquals(-22, z.get()); } /** @@ -210,9 +209,22 @@ public class AtomicLongTest extends JSR1 */ public void testToString() { AtomicLong ai = new AtomicLong(); - for (long i = -12; i < 6; ++i) { - ai.set(i); - assertEquals(ai.toString(), Long.toString(i)); + assertEquals("0", ai.toString()); + for (long x : VALUES) { + ai.set(x); + assertEquals(Long.toString(x), ai.toString()); + } + } + + /** + * intValue returns current value. + */ + public void testIntValue() { + AtomicLong ai = new AtomicLong(); + assertEquals(0, ai.intValue()); + for (long x : VALUES) { + ai.set(x); + assertEquals((int)x, ai.intValue()); } } @@ -221,9 +233,10 @@ public class AtomicLongTest extends JSR1 */ public void testLongValue() { AtomicLong ai = new AtomicLong(); - for (int i = -12; i < 6; ++i) { - ai.set(i); - assertEquals((long)i, ai.longValue()); + assertEquals(0L, ai.longValue()); + for (long x : VALUES) { + ai.set(x); + assertEquals(x, ai.longValue()); } } @@ -232,9 +245,10 @@ public class AtomicLongTest extends JSR1 */ public void testFloatValue() { AtomicLong ai = new AtomicLong(); - for (int i = -12; i < 6; ++i) { - ai.set(i); - assertEquals((float)i, ai.floatValue()); + assertEquals(0.0f, ai.floatValue()); + for (long x : VALUES) { + ai.set(x); + assertEquals((float)x, ai.floatValue()); } } @@ -243,11 +257,11 @@ public class AtomicLongTest extends JSR1 */ public void testDoubleValue() { AtomicLong ai = new AtomicLong(); - for (int i = -12; i < 6; ++i) { - ai.set(i); - assertEquals((double)i, ai.doubleValue()); + assertEquals(0.0d, ai.doubleValue()); + for (long x : VALUES) { + ai.set(x); + assertEquals((double)x, ai.doubleValue()); } } - }