--- jsr166/src/test/tck/AtomicLongArrayTest.java 2009/12/01 09:56:28 1.15 +++ jsr166/src/test/tck/AtomicLongArrayTest.java 2011/06/10 20:17:11 1.24 @@ -1,19 +1,18 @@ /* * 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.*; +import java.util.Arrays; +import java.util.concurrent.atomic.AtomicLongArray; public class AtomicLongArrayTest 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(AtomicLongArrayTest.class); @@ -25,7 +24,7 @@ public class AtomicLongArrayTest extends public void testConstructor() { AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) - assertEquals(0,ai.get(i)); + assertEquals(0, ai.get(i)); } /** @@ -43,7 +42,7 @@ public class AtomicLongArrayTest extends * constructor with array is of same size and has all elements */ public void testConstructor2() { - long[] a = { 17L, 3L, -42L, 99L, -7L}; + long[] a = { 17L, 3L, -42L, 99L, -7L }; AtomicLongArray ai = new AtomicLongArray(a); assertEquals(a.length, ai.length()); for (int i = 0; i < a.length; ++i) @@ -84,11 +83,11 @@ public class AtomicLongArrayTest extends AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertEquals(1,ai.get(i)); + assertEquals(1, ai.get(i)); ai.set(i, 2); - assertEquals(2,ai.get(i)); + assertEquals(2, ai.get(i)); ai.set(i, -3); - assertEquals(-3,ai.get(i)); + assertEquals(-3, ai.get(i)); } } @@ -99,11 +98,11 @@ public class AtomicLongArrayTest extends AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.lazySet(i, 1); - assertEquals(1,ai.get(i)); + assertEquals(1, ai.get(i)); ai.lazySet(i, 2); - assertEquals(2,ai.get(i)); + assertEquals(2, ai.get(i)); ai.lazySet(i, -3); - assertEquals(-3,ai.get(i)); + assertEquals(-3, ai.get(i)); } } @@ -114,13 +113,13 @@ public class AtomicLongArrayTest extends AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertTrue(ai.compareAndSet(i, 1,2)); - assertTrue(ai.compareAndSet(i, 2,-4)); - assertEquals(-4,ai.get(i)); - assertFalse(ai.compareAndSet(i, -5,7)); - assertEquals(-4,ai.get(i)); - assertTrue(ai.compareAndSet(i, -4,7)); - assertEquals(7,ai.get(i)); + assertTrue(ai.compareAndSet(i, 1, 2)); + assertTrue(ai.compareAndSet(i, 2, -4)); + assertEquals(-4, ai.get(i)); + assertFalse(ai.compareAndSet(i, -5, 7)); + assertEquals(-4, ai.get(i)); + assertTrue(ai.compareAndSet(i, -4, 7)); + assertEquals(7, ai.get(i)); } } @@ -141,7 +140,7 @@ public class AtomicLongArrayTest extends assertTrue(a.compareAndSet(0, 1, 2)); t.join(LONG_DELAY_MS); assertFalse(t.isAlive()); - assertEquals(a.get(0), 3); + assertEquals(3, a.get(0)); } /** @@ -152,38 +151,38 @@ public class AtomicLongArrayTest extends AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - while (!ai.weakCompareAndSet(i, 1,2)); - while (!ai.weakCompareAndSet(i, 2,-4)); - assertEquals(-4,ai.get(i)); - while (!ai.weakCompareAndSet(i, -4,7)); - assertEquals(7,ai.get(i)); + while (!ai.weakCompareAndSet(i, 1, 2)); + while (!ai.weakCompareAndSet(i, 2, -4)); + assertEquals(-4, ai.get(i)); + while (!ai.weakCompareAndSet(i, -4, 7)); + assertEquals(7, ai.get(i)); } } /** - * getAndSet returns previous value and sets to given value at given index + * getAndSet returns previous value and sets to given value at given index */ public void testGetAndSet() { AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertEquals(1,ai.getAndSet(i,0)); - assertEquals(0,ai.getAndSet(i,-10)); - assertEquals(-10,ai.getAndSet(i,1)); + assertEquals(1, ai.getAndSet(i, 0)); + assertEquals(0, ai.getAndSet(i, -10)); + assertEquals(-10, ai.getAndSet(i, 1)); } } /** - * getAndAdd returns previous value and adds given value + * getAndAdd returns previous value and adds given value */ public void testGetAndAdd() { AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertEquals(1,ai.getAndAdd(i,2)); - assertEquals(3,ai.get(i)); - assertEquals(3,ai.getAndAdd(i,-4)); - assertEquals(-1,ai.get(i)); + assertEquals(1, ai.getAndAdd(i, 2)); + assertEquals(3, ai.get(i)); + assertEquals(3, ai.getAndAdd(i, -4)); + assertEquals(-1, ai.get(i)); } } @@ -194,9 +193,9 @@ public class AtomicLongArrayTest extends AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertEquals(1,ai.getAndDecrement(i)); - assertEquals(0,ai.getAndDecrement(i)); - assertEquals(-1,ai.getAndDecrement(i)); + assertEquals(1, ai.getAndDecrement(i)); + assertEquals(0, ai.getAndDecrement(i)); + assertEquals(-1, ai.getAndDecrement(i)); } } @@ -207,27 +206,27 @@ public class AtomicLongArrayTest extends AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertEquals(1,ai.getAndIncrement(i)); - assertEquals(2,ai.get(i)); - ai.set(i,-2); - assertEquals(-2,ai.getAndIncrement(i)); - assertEquals(-1,ai.getAndIncrement(i)); - assertEquals(0,ai.getAndIncrement(i)); - assertEquals(1,ai.get(i)); + assertEquals(1, ai.getAndIncrement(i)); + assertEquals(2, ai.get(i)); + ai.set(i, -2); + assertEquals(-2, ai.getAndIncrement(i)); + assertEquals(-1, ai.getAndIncrement(i)); + assertEquals(0, ai.getAndIncrement(i)); + assertEquals(1, ai.get(i)); } } /** - * addAndGet adds given value to current, and returns current value + * addAndGet adds given value to current, and returns current value */ public void testAddAndGet() { AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertEquals(3,ai.addAndGet(i,2)); - assertEquals(3,ai.get(i)); - assertEquals(-1,ai.addAndGet(i,-4)); - assertEquals(-1,ai.get(i)); + assertEquals(3, ai.addAndGet(i, 2)); + assertEquals(3, ai.get(i)); + assertEquals(-1, ai.addAndGet(i, -4)); + assertEquals(-1, ai.get(i)); } } @@ -238,10 +237,10 @@ public class AtomicLongArrayTest extends AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertEquals(0,ai.decrementAndGet(i)); - assertEquals(-1,ai.decrementAndGet(i)); - assertEquals(-2,ai.decrementAndGet(i)); - assertEquals(-2,ai.get(i)); + assertEquals(0, ai.decrementAndGet(i)); + assertEquals(-1, ai.decrementAndGet(i)); + assertEquals(-2, ai.decrementAndGet(i)); + assertEquals(-2, ai.get(i)); } } @@ -252,28 +251,28 @@ public class AtomicLongArrayTest extends AtomicLongArray ai = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, 1); - assertEquals(2,ai.incrementAndGet(i)); - assertEquals(2,ai.get(i)); + assertEquals(2, ai.incrementAndGet(i)); + assertEquals(2, ai.get(i)); ai.set(i, -2); - assertEquals(-1,ai.incrementAndGet(i)); - assertEquals(0,ai.incrementAndGet(i)); - assertEquals(1,ai.incrementAndGet(i)); - assertEquals(1,ai.get(i)); + assertEquals(-1, ai.incrementAndGet(i)); + assertEquals(0, ai.incrementAndGet(i)); + assertEquals(1, ai.incrementAndGet(i)); + assertEquals(1, ai.get(i)); } } static final long COUNTDOWN = 100000; - class Counter implements Runnable { + class Counter extends CheckedRunnable { final AtomicLongArray ai; volatile long counts; Counter(AtomicLongArray a) { ai = a; } - public void run() { + public void realRun() { for (;;) { boolean done = true; for (int i = 0; i < ai.length(); ++i) { long v = ai.get(i); - threadAssertTrue(v >= 0); + assertTrue(v >= 0); if (v != 0) { done = false; if (ai.compareAndSet(i, v, v-1)) @@ -309,20 +308,14 @@ public class AtomicLongArrayTest extends * a deserialized serialized array holds same values */ public void testSerialization() throws Exception { - AtomicLongArray l = new AtomicLongArray(SIZE); + AtomicLongArray x = new AtomicLongArray(SIZE); for (int i = 0; i < SIZE; ++i) - l.set(i, -i); - - 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)); - AtomicLongArray r = (AtomicLongArray) in.readObject(); + x.set(i, -i); + AtomicLongArray y = serialClone(x); + assertTrue(x != y); + assertEquals(x.length(), y.length()); for (int i = 0; i < SIZE; ++i) { - assertEquals(l.get(i), r.get(i)); + assertEquals(x.get(i), y.get(i)); } } @@ -330,10 +323,9 @@ public class AtomicLongArrayTest extends * toString returns current value. */ public void testToString() { - long[] a = { 17, 3, -42, 99, -7}; + long[] a = { 17, 3, -42, 99, -7 }; AtomicLongArray ai = new AtomicLongArray(a); assertEquals(Arrays.toString(a), ai.toString()); } - }