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*/ |
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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.*; |
| 12 |
< |
import java.io.*; |
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> |
import java.util.ArrayList; |
| 11 |
> |
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.LinkedList; |
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> |
import java.util.List; |
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> |
import java.util.ListIterator; |
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> |
import java.util.NoSuchElementException; |
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> |
import java.util.Vector; |
| 20 |
> |
import java.util.concurrent.CopyOnWriteArrayList; |
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|
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public class CopyOnWriteArrayListTest extends JSR166TestCase { |
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|
| 29 |
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return new TestSuite(CopyOnWriteArrayListTest.class); |
| 30 |
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} |
| 31 |
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|
| 32 |
< |
static CopyOnWriteArrayList populatedArray(int n) { |
| 33 |
< |
CopyOnWriteArrayList a = new CopyOnWriteArrayList(); |
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> |
static CopyOnWriteArrayList<Integer> populatedArray(int n) { |
| 33 |
> |
CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>(); |
| 34 |
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assertTrue(a.isEmpty()); |
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< |
for (int i = 0; i < n; ++i) |
| 36 |
< |
a.add(new Integer(i)); |
| 35 |
> |
for (int i = 0; i < n; i++) |
| 36 |
> |
a.add(i); |
| 37 |
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assertFalse(a.isEmpty()); |
| 38 |
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assertEquals(n, a.size()); |
| 39 |
|
return a; |
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} |
| 41 |
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|
| 42 |
+ |
static CopyOnWriteArrayList<Integer> populatedArray(Integer[] elements) { |
| 43 |
+ |
CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>(); |
| 44 |
+ |
assertTrue(a.isEmpty()); |
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+ |
for (int i = 0; i < elements.length; i++) |
| 46 |
+ |
a.add(elements[i]); |
| 47 |
+ |
assertFalse(a.isEmpty()); |
| 48 |
+ |
assertEquals(elements.length, a.size()); |
| 49 |
+ |
return a; |
| 50 |
+ |
} |
| 51 |
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|
| 52 |
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/** |
| 53 |
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* a new list is empty |
| 81 |
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assertEquals(ints[i], a.get(i)); |
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} |
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|
| 67 |
– |
|
| 84 |
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/** |
| 85 |
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* addAll adds each element from the given collection |
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*/ |
| 135 |
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assertEquals(0, full.size()); |
| 136 |
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} |
| 137 |
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|
| 122 |
– |
|
| 138 |
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/** |
| 139 |
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* Cloned list is equal |
| 140 |
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*/ |
| 189 |
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assertEquals(a.hashCode(), b.hashCode()); |
| 190 |
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} |
| 191 |
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|
| 177 |
– |
|
| 192 |
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/** |
| 193 |
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* containsAll returns true for collection with subset of elements |
| 194 |
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*/ |
| 240 |
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} |
| 241 |
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|
| 242 |
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/** |
| 243 |
< |
* iterator() returns an iterator containing the elements of the list |
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> |
* iterator() returns an iterator containing the elements of the |
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> |
* list in insertion order |
| 245 |
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*/ |
| 246 |
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public void testIterator() { |
| 247 |
< |
CopyOnWriteArrayList full = populatedArray(SIZE); |
| 248 |
< |
Iterator i = full.iterator(); |
| 249 |
< |
int j; |
| 250 |
< |
for (j = 0; i.hasNext(); j++) |
| 251 |
< |
assertEquals(j, i.next()); |
| 252 |
< |
assertEquals(SIZE, j); |
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> |
Collection empty = new CopyOnWriteArrayList(); |
| 248 |
> |
assertFalse(empty.iterator().hasNext()); |
| 249 |
> |
try { |
| 250 |
> |
empty.iterator().next(); |
| 251 |
> |
shouldThrow(); |
| 252 |
> |
} catch (NoSuchElementException success) {} |
| 253 |
> |
|
| 254 |
> |
Integer[] elements = new Integer[SIZE]; |
| 255 |
> |
for (int i = 0; i < SIZE; i++) |
| 256 |
> |
elements[i] = i; |
| 257 |
> |
Collections.shuffle(Arrays.asList(elements)); |
| 258 |
> |
Collection<Integer> full = populatedArray(elements); |
| 259 |
> |
|
| 260 |
> |
Iterator it = full.iterator(); |
| 261 |
> |
for (int j = 0; j < SIZE; j++) { |
| 262 |
> |
assertTrue(it.hasNext()); |
| 263 |
> |
assertEquals(elements[j], it.next()); |
| 264 |
> |
} |
| 265 |
> |
assertFalse(it.hasNext()); |
| 266 |
> |
try { |
| 267 |
> |
it.next(); |
| 268 |
> |
shouldThrow(); |
| 269 |
> |
} catch (NoSuchElementException success) {} |
| 270 |
|
} |
| 271 |
|
|
| 272 |
|
/** |
| 286 |
|
* toString contains toString of elements |
| 287 |
|
*/ |
| 288 |
|
public void testToString() { |
| 289 |
+ |
assertEquals("[]", new CopyOnWriteArrayList().toString()); |
| 290 |
|
CopyOnWriteArrayList full = populatedArray(3); |
| 291 |
|
String s = full.toString(); |
| 292 |
< |
for (int i = 0; i < 3; ++i) { |
| 293 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
| 294 |
< |
} |
| 292 |
> |
for (int i = 0; i < 3; ++i) |
| 293 |
> |
assertTrue(s.contains(String.valueOf(i))); |
| 294 |
> |
assertEquals(new ArrayList(full).toString(), |
| 295 |
> |
full.toString()); |
| 296 |
|
} |
| 297 |
|
|
| 298 |
|
/** |
| 309 |
|
/** |
| 310 |
|
* lastIndexOf returns the index from the given starting point |
| 311 |
|
*/ |
| 312 |
< |
public void testlastIndexOf2() { |
| 312 |
> |
public void testLastIndexOf2() { |
| 313 |
|
CopyOnWriteArrayList full = populatedArray(3); |
| 314 |
|
full.add(one); |
| 315 |
|
full.add(three); |
| 342 |
|
} |
| 343 |
|
|
| 344 |
|
/** |
| 345 |
< |
* remove removes and returns the object at the given index |
| 345 |
> |
* remove(int) removes and returns the object at the given index |
| 346 |
|
*/ |
| 347 |
< |
public void testRemove() { |
| 348 |
< |
CopyOnWriteArrayList full = populatedArray(3); |
| 349 |
< |
assertEquals(2, full.remove(2)); |
| 350 |
< |
assertEquals(2, full.size()); |
| 347 |
> |
public void testRemove_int() { |
| 348 |
> |
int SIZE = 3; |
| 349 |
> |
for (int i = 0; i < SIZE; i++) { |
| 350 |
> |
CopyOnWriteArrayList full = populatedArray(SIZE); |
| 351 |
> |
assertEquals(i, full.remove(i)); |
| 352 |
> |
assertEquals(SIZE - 1, full.size()); |
| 353 |
> |
assertFalse(full.contains(new Integer(i))); |
| 354 |
> |
} |
| 355 |
> |
} |
| 356 |
> |
|
| 357 |
> |
/** |
| 358 |
> |
* remove(Object) removes the object if found and returns true |
| 359 |
> |
*/ |
| 360 |
> |
public void testRemove_Object() { |
| 361 |
> |
int SIZE = 3; |
| 362 |
> |
for (int i = 0; i < SIZE; i++) { |
| 363 |
> |
CopyOnWriteArrayList full = populatedArray(SIZE); |
| 364 |
> |
assertFalse(full.remove(new Integer(-42))); |
| 365 |
> |
assertTrue(full.remove(new Integer(i))); |
| 366 |
> |
assertEquals(SIZE - 1, full.size()); |
| 367 |
> |
assertFalse(full.contains(new Integer(i))); |
| 368 |
> |
} |
| 369 |
> |
CopyOnWriteArrayList x = new CopyOnWriteArrayList(Arrays.asList(4, 5, 6)); |
| 370 |
> |
assertTrue(x.remove(new Integer(6))); |
| 371 |
> |
assertEquals(x, Arrays.asList(4, 5)); |
| 372 |
> |
assertTrue(x.remove(new Integer(4))); |
| 373 |
> |
assertEquals(x, Arrays.asList(5)); |
| 374 |
> |
assertTrue(x.remove(new Integer(5))); |
| 375 |
> |
assertEquals(x, Arrays.asList()); |
| 376 |
> |
assertFalse(x.remove(new Integer(5))); |
| 377 |
|
} |
| 378 |
|
|
| 379 |
|
/** |
| 408 |
|
} |
| 409 |
|
|
| 410 |
|
/** |
| 411 |
< |
* toArray returns an Object array containing all elements from the list |
| 411 |
> |
* toArray() returns an Object array containing all elements from |
| 412 |
> |
* the list in insertion order |
| 413 |
|
*/ |
| 414 |
|
public void testToArray() { |
| 415 |
< |
CopyOnWriteArrayList full = populatedArray(3); |
| 416 |
< |
Object[] o = full.toArray(); |
| 417 |
< |
assertEquals(3, o.length); |
| 418 |
< |
assertEquals(0, o[0]); |
| 419 |
< |
assertEquals(1, o[1]); |
| 420 |
< |
assertEquals(2, o[2]); |
| 415 |
> |
Object[] a = new CopyOnWriteArrayList().toArray(); |
| 416 |
> |
assertTrue(Arrays.equals(new Object[0], a)); |
| 417 |
> |
assertSame(Object[].class, a.getClass()); |
| 418 |
> |
|
| 419 |
> |
Integer[] elements = new Integer[SIZE]; |
| 420 |
> |
for (int i = 0; i < SIZE; i++) |
| 421 |
> |
elements[i] = i; |
| 422 |
> |
Collections.shuffle(Arrays.asList(elements)); |
| 423 |
> |
Collection<Integer> full = populatedArray(elements); |
| 424 |
> |
|
| 425 |
> |
assertTrue(Arrays.equals(elements, full.toArray())); |
| 426 |
> |
assertSame(Object[].class, full.toArray().getClass()); |
| 427 |
|
} |
| 428 |
|
|
| 429 |
|
/** |
| 430 |
< |
* toArray returns an Integer array containing all elements from |
| 431 |
< |
* the list |
| 430 |
> |
* toArray(Integer array) returns an Integer array containing all |
| 431 |
> |
* elements from the list in insertion order |
| 432 |
|
*/ |
| 433 |
|
public void testToArray2() { |
| 434 |
< |
CopyOnWriteArrayList full = populatedArray(3); |
| 435 |
< |
Integer[] i = new Integer[3]; |
| 436 |
< |
i = (Integer[])full.toArray(i); |
| 437 |
< |
assertEquals(3, i.length); |
| 438 |
< |
assertEquals(0, i[0].intValue()); |
| 372 |
< |
assertEquals(1, i[1].intValue()); |
| 373 |
< |
assertEquals(2, i[2].intValue()); |
| 374 |
< |
} |
| 434 |
> |
Collection empty = new CopyOnWriteArrayList(); |
| 435 |
> |
Integer[] a; |
| 436 |
> |
|
| 437 |
> |
a = new Integer[0]; |
| 438 |
> |
assertSame(a, empty.toArray(a)); |
| 439 |
|
|
| 440 |
+ |
a = new Integer[SIZE/2]; |
| 441 |
+ |
Arrays.fill(a, 42); |
| 442 |
+ |
assertSame(a, empty.toArray(a)); |
| 443 |
+ |
assertNull(a[0]); |
| 444 |
+ |
for (int i = 1; i < a.length; i++) |
| 445 |
+ |
assertEquals(42, (int) a[i]); |
| 446 |
+ |
|
| 447 |
+ |
Integer[] elements = new Integer[SIZE]; |
| 448 |
+ |
for (int i = 0; i < SIZE; i++) |
| 449 |
+ |
elements[i] = i; |
| 450 |
+ |
Collections.shuffle(Arrays.asList(elements)); |
| 451 |
+ |
Collection<Integer> full = populatedArray(elements); |
| 452 |
+ |
|
| 453 |
+ |
Arrays.fill(a, 42); |
| 454 |
+ |
assertTrue(Arrays.equals(elements, full.toArray(a))); |
| 455 |
+ |
for (int i = 0; i < a.length; i++) |
| 456 |
+ |
assertEquals(42, (int) a[i]); |
| 457 |
+ |
assertSame(Integer[].class, full.toArray(a).getClass()); |
| 458 |
+ |
|
| 459 |
+ |
a = new Integer[SIZE]; |
| 460 |
+ |
Arrays.fill(a, 42); |
| 461 |
+ |
assertSame(a, full.toArray(a)); |
| 462 |
+ |
assertTrue(Arrays.equals(elements, a)); |
| 463 |
+ |
|
| 464 |
+ |
a = new Integer[2*SIZE]; |
| 465 |
+ |
Arrays.fill(a, 42); |
| 466 |
+ |
assertSame(a, full.toArray(a)); |
| 467 |
+ |
assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE))); |
| 468 |
+ |
assertNull(a[SIZE]); |
| 469 |
+ |
for (int i = SIZE + 1; i < a.length; i++) |
| 470 |
+ |
assertEquals(42, (int) a[i]); |
| 471 |
+ |
} |
| 472 |
|
|
| 473 |
|
/** |
| 474 |
|
* sublists contains elements at indexes offset from their base |
| 486 |
|
} |
| 487 |
|
|
| 488 |
|
List s = a.subList(2, 5); |
| 489 |
< |
assertEquals(s.size(), 3); |
| 489 |
> |
assertEquals(3, s.size()); |
| 490 |
|
s.set(2, m1); |
| 491 |
|
assertEquals(a.get(4), m1); |
| 492 |
|
s.clear(); |
| 493 |
< |
assertEquals(a.size(), 7); |
| 493 |
> |
assertEquals(7, a.size()); |
| 494 |
|
} |
| 495 |
|
|
| 496 |
|
// Exception tests |
| 692 |
|
* a deserialized serialized list is equal |
| 693 |
|
*/ |
| 694 |
|
public void testSerialization() throws Exception { |
| 695 |
< |
CopyOnWriteArrayList q = populatedArray(SIZE); |
| 695 |
> |
List x = populatedArray(SIZE); |
| 696 |
> |
List y = serialClone(x); |
| 697 |
|
|
| 698 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
| 699 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
| 700 |
< |
out.writeObject(q); |
| 701 |
< |
out.close(); |
| 702 |
< |
|
| 703 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
| 704 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
| 705 |
< |
CopyOnWriteArrayList r = (CopyOnWriteArrayList)in.readObject(); |
| 706 |
< |
assertEquals(q.size(), r.size()); |
| 707 |
< |
assertTrue(q.equals(r)); |
| 708 |
< |
assertTrue(r.equals(q)); |
| 698 |
> |
assertTrue(x != y); |
| 699 |
> |
assertEquals(x.size(), y.size()); |
| 700 |
> |
assertEquals(x.toString(), y.toString()); |
| 701 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
| 702 |
> |
assertEquals(x, y); |
| 703 |
> |
assertEquals(y, x); |
| 704 |
> |
while (!x.isEmpty()) { |
| 705 |
> |
assertFalse(y.isEmpty()); |
| 706 |
> |
assertEquals(x.remove(0), y.remove(0)); |
| 707 |
> |
} |
| 708 |
> |
assertTrue(y.isEmpty()); |
| 709 |
|
} |
| 710 |
|
|
| 711 |
|
} |
