| 7 |
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*/ |
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import junit.framework.*; |
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< |
import java.util.*; |
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< |
import java.util.concurrent.*; |
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< |
import java.io.*; |
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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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|
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public class CopyOnWriteArraySetTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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return new TestSuite(CopyOnWriteArraySetTest.class); |
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} |
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|
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< |
static CopyOnWriteArraySet populatedSet(int n) { |
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< |
CopyOnWriteArraySet a = new CopyOnWriteArraySet(); |
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> |
static CopyOnWriteArraySet<Integer> populatedSet(int n) { |
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> |
CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>(); |
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assertTrue(a.isEmpty()); |
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for (int i = 0; i < n; ++i) |
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a.add(new Integer(i)); |
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for (int i = 0; i < n; i++) |
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a.add(i); |
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assertFalse(a.isEmpty()); |
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assertEquals(n, a.size()); |
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return a; |
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} |
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|
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+ |
static CopyOnWriteArraySet populatedSet(Integer[] elements) { |
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CopyOnWriteArraySet<Integer> a = new CopyOnWriteArraySet<Integer>(); |
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assertTrue(a.isEmpty()); |
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for (int i = 0; i < elements.length; i++) |
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a.add(elements[i]); |
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assertFalse(a.isEmpty()); |
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assertEquals(elements.length, a.size()); |
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return a; |
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} |
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|
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/** |
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* Default-constructed set is empty |
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*/ |
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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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> |
Set 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); |
| 188 |
> |
|
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> |
Iterator it = full.iterator(); |
| 190 |
> |
for (int j = 0; j < SIZE; j++) { |
| 191 |
> |
assertTrue(it.hasNext()); |
| 192 |
> |
assertEquals(elements[j], it.next()); |
| 193 |
> |
} |
| 194 |
> |
assertFalse(it.hasNext()); |
| 195 |
> |
try { |
| 196 |
> |
it.next(); |
| 197 |
> |
shouldThrow(); |
| 198 |
> |
} catch (NoSuchElementException success) {} |
| 199 |
|
} |
| 200 |
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|
| 201 |
|
/** |
| 255 |
|
} |
| 256 |
|
|
| 257 |
|
/** |
| 258 |
< |
* toArray returns an Object array containing all elements from the set |
| 258 |
> |
* toArray() returns an Object array containing all elements from |
| 259 |
> |
* the set in insertion order |
| 260 |
|
*/ |
| 261 |
|
public void testToArray() { |
| 262 |
< |
CopyOnWriteArraySet full = populatedSet(3); |
| 263 |
< |
Object[] o = full.toArray(); |
| 264 |
< |
assertEquals(3, o.length); |
| 265 |
< |
assertEquals(0, o[0]); |
| 266 |
< |
assertEquals(1, o[1]); |
| 267 |
< |
assertEquals(2, o[2]); |
| 262 |
> |
Object[] a = new CopyOnWriteArraySet().toArray(); |
| 263 |
> |
assertTrue(Arrays.equals(new Object[0], a)); |
| 264 |
> |
assertSame(Object[].class, a.getClass()); |
| 265 |
> |
|
| 266 |
> |
Integer[] elements = new Integer[SIZE]; |
| 267 |
> |
for (int i = 0; i < SIZE; i++) |
| 268 |
> |
elements[i] = i; |
| 269 |
> |
Collections.shuffle(Arrays.asList(elements)); |
| 270 |
> |
Collection<Integer> full = populatedSet(elements); |
| 271 |
> |
|
| 272 |
> |
assertTrue(Arrays.equals(elements, full.toArray())); |
| 273 |
> |
assertSame(Object[].class, full.toArray().getClass()); |
| 274 |
|
} |
| 275 |
|
|
| 276 |
|
/** |
| 277 |
< |
* toArray returns an Integer array containing all elements from |
| 278 |
< |
* the set |
| 277 |
> |
* toArray(Integer array) returns an Integer array containing all |
| 278 |
> |
* elements from the set in insertion order |
| 279 |
|
*/ |
| 280 |
|
public void testToArray2() { |
| 281 |
< |
CopyOnWriteArraySet full = populatedSet(3); |
| 282 |
< |
Integer[] i = new Integer[3]; |
| 283 |
< |
i = (Integer[])full.toArray(i); |
| 284 |
< |
assertEquals(3, i.length); |
| 285 |
< |
assertEquals(0, (int) i[0]); |
| 286 |
< |
assertEquals(1, (int) i[1]); |
| 287 |
< |
assertEquals(2, (int) i[2]); |
| 281 |
> |
Collection empty = new CopyOnWriteArraySet(); |
| 282 |
> |
Integer[] a; |
| 283 |
> |
|
| 284 |
> |
a = new Integer[0]; |
| 285 |
> |
assertSame(a, empty.toArray(a)); |
| 286 |
> |
|
| 287 |
> |
a = new Integer[SIZE/2]; |
| 288 |
> |
Arrays.fill(a, 42); |
| 289 |
> |
assertSame(a, empty.toArray(a)); |
| 290 |
> |
assertNull(a[0]); |
| 291 |
> |
for (int i = 1; i < a.length; i++) |
| 292 |
> |
assertEquals(42, (int) a[i]); |
| 293 |
> |
|
| 294 |
> |
Integer[] elements = new Integer[SIZE]; |
| 295 |
> |
for (int i = 0; i < SIZE; i++) |
| 296 |
> |
elements[i] = i; |
| 297 |
> |
Collections.shuffle(Arrays.asList(elements)); |
| 298 |
> |
Collection<Integer> full = populatedSet(elements); |
| 299 |
> |
|
| 300 |
> |
Arrays.fill(a, 42); |
| 301 |
> |
assertTrue(Arrays.equals(elements, full.toArray(a))); |
| 302 |
> |
for (int i = 0; i < a.length; i++) |
| 303 |
> |
assertEquals(42, (int) a[i]); |
| 304 |
> |
assertSame(Integer[].class, full.toArray(a).getClass()); |
| 305 |
> |
|
| 306 |
> |
a = new Integer[SIZE]; |
| 307 |
> |
Arrays.fill(a, 42); |
| 308 |
> |
assertSame(a, full.toArray(a)); |
| 309 |
> |
assertTrue(Arrays.equals(elements, a)); |
| 310 |
> |
|
| 311 |
> |
a = new Integer[2*SIZE]; |
| 312 |
> |
Arrays.fill(a, 42); |
| 313 |
> |
assertSame(a, full.toArray(a)); |
| 314 |
> |
assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE))); |
| 315 |
> |
assertNull(a[SIZE]); |
| 316 |
> |
for (int i = SIZE + 1; i < a.length; i++) |
| 317 |
> |
assertEquals(42, (int) a[i]); |
| 318 |
|
} |
| 319 |
|
|
| 320 |
|
/** |
| 335 |
|
* A deserialized serialized set is equal |
| 336 |
|
*/ |
| 337 |
|
public void testSerialization() throws Exception { |
| 338 |
< |
CopyOnWriteArraySet q = populatedSet(SIZE); |
| 338 |
> |
Set x = populatedSet(SIZE); |
| 339 |
> |
Set y = serialClone(x); |
| 340 |
|
|
| 341 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
| 342 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
| 343 |
< |
out.writeObject(q); |
| 344 |
< |
out.close(); |
| 345 |
< |
|
| 346 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
| 276 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
| 277 |
< |
CopyOnWriteArraySet r = (CopyOnWriteArraySet)in.readObject(); |
| 278 |
< |
assertEquals(q.size(), r.size()); |
| 279 |
< |
assertTrue(q.equals(r)); |
| 280 |
< |
assertTrue(r.equals(q)); |
| 341 |
> |
assertTrue(x != y); |
| 342 |
> |
assertEquals(x.size(), y.size()); |
| 343 |
> |
assertEquals(x.toString(), y.toString()); |
| 344 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
| 345 |
> |
assertEquals(x, y); |
| 346 |
> |
assertEquals(y, x); |
| 347 |
|
} |
| 348 |
|
|
| 349 |
|
} |
