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* Pat Fisher, Mike Judd. |
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*/ |
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< |
import junit.framework.*; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collection; |
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import java.util.Collections; |
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import java.util.Iterator; |
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import java.util.NoSuchElementException; |
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import java.util.Set; |
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import java.util.Vector; |
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import java.util.concurrent.CopyOnWriteArraySet; |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class CopyOnWriteArraySetTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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} |
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|
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/** |
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* iterator() returns an iterator containing the elements of the set |
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* iterator() returns an iterator containing the elements of the |
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* set in insertion order |
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*/ |
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public void testIterator() { |
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CopyOnWriteArraySet full = populatedSet(3); |
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Iterator i = full.iterator(); |
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int j; |
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for (j = 0; i.hasNext(); j++) |
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assertEquals(j, i.next()); |
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assertEquals(3, j); |
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Collection empty = new CopyOnWriteArraySet(); |
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assertFalse(empty.iterator().hasNext()); |
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try { |
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> |
empty.iterator().next(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) {} |
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> |
|
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> |
Integer[] elements = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; i++) |
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elements[i] = i; |
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> |
Collections.shuffle(Arrays.asList(elements)); |
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Collection<Integer> full = populatedSet(elements); |
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> |
|
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> |
Iterator it = full.iterator(); |
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> |
for (int j = 0; j < SIZE; j++) { |
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assertTrue(it.hasNext()); |
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> |
assertEquals(elements[j], it.next()); |
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} |
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> |
assertIteratorExhausted(it); |
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} |
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|
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/** |
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* iterator of empty collection has no elements |
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> |
*/ |
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> |
public void testEmptyIterator() { |
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assertIteratorExhausted(new CopyOnWriteArraySet().iterator()); |
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} |
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|
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/** |
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* toString holds toString of elements |
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*/ |
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public void testToString() { |
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assertEquals("[]", new CopyOnWriteArraySet().toString()); |
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CopyOnWriteArraySet full = populatedSet(3); |
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String s = full.toString(); |
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< |
for (int i = 0; i < 3; ++i) { |
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for (int i = 0; i < 3; ++i) |
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assertTrue(s.contains(String.valueOf(i))); |
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< |
} |
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assertEquals(new ArrayList(full).toString(), |
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full.toString()); |
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} |
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|
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/** |
| 346 |
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Set x = populatedSet(SIZE); |
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Set y = serialClone(x); |
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|
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< |
assertTrue(x != y); |
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assertNotSame(y, x); |
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assertEquals(x.size(), y.size()); |
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assertEquals(x.toString(), y.toString()); |
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assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
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assertEquals(x, y); |
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assertEquals(y, x); |
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} |
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+ |
|
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/** |
| 358 |
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* addAll is idempotent |
| 359 |
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*/ |
| 360 |
+ |
public void testAddAll_idempotent() throws Exception { |
| 361 |
+ |
Set x = populatedSet(SIZE); |
| 362 |
+ |
Set y = new CopyOnWriteArraySet(x); |
| 363 |
+ |
y.addAll(x); |
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assertEquals(x, y); |
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assertEquals(y, x); |
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} |
