--- jsr166/src/test/tck/AtomicReferenceArrayTest.java 2003/09/25 11:02:41 1.5 +++ jsr166/src/test/tck/AtomicReferenceArrayTest.java 2009/11/02 20:28:31 1.11 @@ -1,15 +1,17 @@ /* - * Written by members of JCP JSR-166 Expert Group and released to the - * public domain. Use, modify, and redistribute this code in any way - * without acknowledgement. Other contributors include Andrew Wright, - * Jeffrey Hayes, Pat Fischer, Mike Judd. + * 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 + * 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.*; -public class AtomicReferenceArrayTest extends JSR166TestCase +public class AtomicReferenceArrayTest extends JSR166TestCase { public static void main (String[] args) { junit.textui.TestRunner.run (suite()); @@ -29,6 +31,31 @@ public class AtomicReferenceArrayTest ex } /** + * constructor with null array throws NPE + */ + public void testConstructor2NPE() { + try { + Integer[] a = null; + AtomicReferenceArray ai = new AtomicReferenceArray(a); + } catch (NullPointerException success) { + } catch (Exception ex) { + unexpectedException(); + } + } + + /** + * constructor with array is of same size and has all elements + */ + 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)); + } + + + /** * get and set for out of bound indices throw IndexOutOfBoundsException */ public void testIndexing(){ @@ -55,7 +82,7 @@ public class AtomicReferenceArrayTest ex * get returns the last value set at index */ public void testGetSet(){ - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); + AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, one); assertEquals(one,ai.get(i)); @@ -67,10 +94,25 @@ 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); + assertEquals(one,ai.get(i)); + ai.lazySet(i, two); + assertEquals(two,ai.get(i)); + ai.lazySet(i, m3); + assertEquals(m3,ai.get(i)); + } + } + + /** * compareAndSet succeeds in changing value if equal to expected else fails */ public void testCompareAndSet(){ - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); + AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, one); assertTrue(ai.compareAndSet(i, one,two)); @@ -108,10 +150,10 @@ public class AtomicReferenceArrayTest ex /** * repeated weakCompareAndSet succeeds in changing value when equal - * to expected + * to expected */ public void testWeakCompareAndSet(){ - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); + AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, one); while(!ai.weakCompareAndSet(i, one,two)); @@ -126,7 +168,7 @@ public class AtomicReferenceArrayTest ex * getAndSet returns previous value and sets to given value at given index */ public void testGetAndSet(){ - AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); + AtomicReferenceArray ai = new AtomicReferenceArray(SIZE); for (int i = 0; i < SIZE; ++i) { ai.set(i, one); assertEquals(one,ai.getAndSet(i,zero)); @@ -139,7 +181,7 @@ public class AtomicReferenceArrayTest ex * a deserialized serialized array holds same values */ public void testSerialization() { - AtomicReferenceArray l = new AtomicReferenceArray(SIZE); + AtomicReferenceArray l = new AtomicReferenceArray(SIZE); for (int i = 0; i < SIZE; ++i) { l.set(i, new Integer(-i)); } @@ -162,4 +204,13 @@ public class AtomicReferenceArrayTest ex } } + + /** + * toString returns current value. + */ + public void testToString() { + Integer[] a = { two, one, three, four, seven}; + AtomicReferenceArray ai = new AtomicReferenceArray(a); + assertEquals(Arrays.toString(a), ai.toString()); + } }