--- jsr166/src/test/tck/AtomicReferenceArrayTest.java 2011/06/10 19:45:01 1.23 +++ jsr166/src/test/tck/AtomicReferenceArrayTest.java 2015/04/25 04:55:30 1.32 @@ -6,13 +6,15 @@ * Pat Fisher, Mike Judd. */ -import junit.framework.*; import java.util.Arrays; import java.util.concurrent.atomic.AtomicReferenceArray; +import junit.framework.Test; +import junit.framework.TestSuite; + public class AtomicReferenceArrayTest extends JSR166TestCase { public static void main(String[] args) { - junit.textui.TestRunner.run(suite()); + main(suite(), args); } public static Test suite() { return new TestSuite(AtomicReferenceArrayTest.class); @@ -22,9 +24,9 @@ public class AtomicReferenceArrayTest ex * constructor creates array of given size with all elements null */ public void testConstructor() { - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); - for (int i = 0; i < SIZE; ++i) { - assertNull(ai.get(i)); + AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); + for (int i = 0; i < SIZE; i++) { + assertNull(aa.get(i)); } } @@ -34,7 +36,7 @@ public class AtomicReferenceArrayTest ex public void testConstructor2NPE() { try { Integer[] a = null; - AtomicReferenceArray ai = new AtomicReferenceArray(a); + new AtomicReferenceArray(a); shouldThrow(); } catch (NullPointerException success) {} } @@ -44,20 +46,20 @@ public class AtomicReferenceArrayTest ex */ public void testConstructor2() { Integer[] a = { two, one, three, four, seven }; - AtomicReferenceArray ai = new AtomicReferenceArray(a); - assertEquals(a.length, ai.length()); - for (int i = 0; i < a.length; ++i) - assertEquals(a[i], ai.get(i)); + AtomicReferenceArray aa = new AtomicReferenceArray(a); + assertEquals(a.length, aa.length()); + for (int i = 0; i < a.length; i++) + assertEquals(a[i], aa.get(i)); } /** - * Initialize AtomicReference with SubClass[] + * Initialize AtomicReferenceArray with SubClass[] */ public void testConstructorSubClassArray() { Integer[] a = { two, one, three, four, seven }; AtomicReferenceArray aa = new AtomicReferenceArray(a); assertEquals(a.length, aa.length()); - for (int i = 0; i < a.length; ++i) { + for (int i = 0; i < a.length; i++) { assertSame(a[i], aa.get(i)); Long x = Long.valueOf(i); aa.set(i, x); @@ -69,26 +71,28 @@ public class AtomicReferenceArrayTest ex * get and set for out of bound indices throw IndexOutOfBoundsException */ public void testIndexing() { - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); - try { - ai.get(SIZE); - shouldThrow(); - } catch (IndexOutOfBoundsException success) { - } - try { - ai.get(-1); - shouldThrow(); - } catch (IndexOutOfBoundsException success) { - } - try { - ai.set(SIZE, null); - shouldThrow(); - } catch (IndexOutOfBoundsException success) { - } - try { - ai.set(-1, null); - shouldThrow(); - } catch (IndexOutOfBoundsException success) { + AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); + for (int index : new int[] { -1, SIZE }) { + try { + aa.get(index); + shouldThrow(); + } catch (IndexOutOfBoundsException success) {} + try { + aa.set(index, null); + shouldThrow(); + } catch (IndexOutOfBoundsException success) {} + try { + aa.lazySet(index, null); + shouldThrow(); + } catch (IndexOutOfBoundsException success) {} + try { + aa.compareAndSet(index, null, null); + shouldThrow(); + } catch (IndexOutOfBoundsException success) {} + try { + aa.weakCompareAndSet(index, null, null); + shouldThrow(); + } catch (IndexOutOfBoundsException success) {} } } @@ -96,14 +100,14 @@ public class AtomicReferenceArrayTest ex * get returns the last value set at index */ public void testGetSet() { - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); - for (int i = 0; i < SIZE; ++i) { - ai.set(i, one); - assertSame(one,ai.get(i)); - ai.set(i, two); - assertSame(two,ai.get(i)); - ai.set(i, m3); - assertSame(m3,ai.get(i)); + AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); + for (int i = 0; i < SIZE; i++) { + aa.set(i, one); + assertSame(one, aa.get(i)); + aa.set(i, two); + assertSame(two, aa.get(i)); + aa.set(i, m3); + assertSame(m3, aa.get(i)); } } @@ -111,14 +115,14 @@ public class AtomicReferenceArrayTest ex * get returns the last value lazySet at index by same thread */ public void testGetLazySet() { - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); - for (int i = 0; i < SIZE; ++i) { - ai.lazySet(i, one); - assertSame(one,ai.get(i)); - ai.lazySet(i, two); - assertSame(two,ai.get(i)); - ai.lazySet(i, m3); - assertSame(m3,ai.get(i)); + AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); + for (int i = 0; i < SIZE; i++) { + aa.lazySet(i, one); + assertSame(one, aa.get(i)); + aa.lazySet(i, two); + assertSame(two, aa.get(i)); + aa.lazySet(i, m3); + assertSame(m3, aa.get(i)); } } @@ -126,16 +130,16 @@ public class AtomicReferenceArrayTest ex * compareAndSet succeeds in changing value if equal to expected else fails */ public void testCompareAndSet() { - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); - for (int i = 0; i < SIZE; ++i) { - ai.set(i, one); - assertTrue(ai.compareAndSet(i, one,two)); - assertTrue(ai.compareAndSet(i, two,m4)); - assertSame(m4,ai.get(i)); - assertFalse(ai.compareAndSet(i, m5,seven)); - assertSame(m4,ai.get(i)); - assertTrue(ai.compareAndSet(i, m4,seven)); - assertSame(seven,ai.get(i)); + AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); + for (int i = 0; i < SIZE; i++) { + aa.set(i, one); + assertTrue(aa.compareAndSet(i, one, two)); + assertTrue(aa.compareAndSet(i, two, m4)); + assertSame(m4, aa.get(i)); + assertFalse(aa.compareAndSet(i, m5, seven)); + assertSame(m4, aa.get(i)); + assertTrue(aa.compareAndSet(i, m4, seven)); + assertSame(seven, aa.get(i)); } } @@ -156,7 +160,7 @@ public class AtomicReferenceArrayTest ex assertTrue(a.compareAndSet(0, one, two)); t.join(LONG_DELAY_MS); assertFalse(t.isAlive()); - assertSame(a.get(0), three); + assertSame(three, a.get(0)); } /** @@ -164,14 +168,14 @@ public class AtomicReferenceArrayTest ex * to expected */ public void testWeakCompareAndSet() { - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); - for (int i = 0; i < SIZE; ++i) { - ai.set(i, one); - while (!ai.weakCompareAndSet(i, one,two)); - while (!ai.weakCompareAndSet(i, two,m4)); - assertSame(m4,ai.get(i)); - while (!ai.weakCompareAndSet(i, m4,seven)); - assertSame(seven,ai.get(i)); + AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); + for (int i = 0; i < SIZE; i++) { + aa.set(i, one); + do {} while (!aa.weakCompareAndSet(i, one, two)); + do {} while (!aa.weakCompareAndSet(i, two, m4)); + assertSame(m4, aa.get(i)); + do {} while (!aa.weakCompareAndSet(i, m4, seven)); + assertSame(seven, aa.get(i)); } } @@ -179,12 +183,12 @@ public class AtomicReferenceArrayTest ex * getAndSet returns previous value and sets to given value at given index */ public void testGetAndSet() { - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); - for (int i = 0; i < SIZE; ++i) { - ai.set(i, one); - assertSame(one,ai.getAndSet(i,zero)); - assertSame(zero,ai.getAndSet(i,m10)); - assertSame(m10,ai.getAndSet(i,one)); + AtomicReferenceArray aa = new AtomicReferenceArray(SIZE); + for (int i = 0; i < SIZE; i++) { + aa.set(i, one); + assertSame(one, aa.getAndSet(i, zero)); + assertSame(zero, aa.getAndSet(i, m10)); + assertSame(m10, aa.getAndSet(i, one)); } } @@ -197,7 +201,7 @@ public class AtomicReferenceArrayTest ex x.set(i, new Integer(-i)); } AtomicReferenceArray y = serialClone(x); - assertTrue(x != y); + assertNotSame(x, y); assertEquals(x.length(), y.length()); for (int i = 0; i < SIZE; i++) { assertEquals(x.get(i), y.get(i)); @@ -209,7 +213,7 @@ public class AtomicReferenceArrayTest ex */ public void testToString() { Integer[] a = { two, one, three, four, seven }; - AtomicReferenceArray ai = new AtomicReferenceArray(a); - assertEquals(Arrays.toString(a), ai.toString()); + AtomicReferenceArray aa = new AtomicReferenceArray(a); + assertEquals(Arrays.toString(a), aa.toString()); } }