| 8 |
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| 9 |
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import junit.framework.*; |
| 10 |
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import java.util.Arrays; |
| 11 |
+ |
import java.util.Collection; |
| 12 |
+ |
import java.util.Collections; |
| 13 |
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import java.util.Iterator; |
| 14 |
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import java.util.LinkedList; |
| 15 |
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import java.util.List; |
| 28 |
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} |
| 29 |
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|
| 30 |
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static CopyOnWriteArrayList<Integer> populatedArray(int n) { |
| 31 |
< |
CopyOnWriteArrayList<Integer> a |
| 30 |
< |
= new CopyOnWriteArrayList<Integer>(); |
| 31 |
> |
CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>(); |
| 32 |
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assertTrue(a.isEmpty()); |
| 33 |
< |
for (int i = 0; i < n; ++i) |
| 33 |
> |
for (int i = 0; i < n; i++) |
| 34 |
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a.add(i); |
| 35 |
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assertFalse(a.isEmpty()); |
| 36 |
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assertEquals(n, a.size()); |
| 37 |
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return a; |
| 38 |
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} |
| 39 |
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|
| 40 |
+ |
static CopyOnWriteArrayList<Integer> populatedArray(Integer[] elements) { |
| 41 |
+ |
CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>(); |
| 42 |
+ |
assertTrue(a.isEmpty()); |
| 43 |
+ |
for (int i = 0; i < elements.length; i++) |
| 44 |
+ |
a.add(elements[i]); |
| 45 |
+ |
assertFalse(a.isEmpty()); |
| 46 |
+ |
assertEquals(elements.length, a.size()); |
| 47 |
+ |
return a; |
| 48 |
+ |
} |
| 49 |
+ |
|
| 50 |
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/** |
| 51 |
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* a new list is empty |
| 52 |
|
*/ |
| 360 |
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} |
| 361 |
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|
| 362 |
|
/** |
| 363 |
< |
* toArray returns an Object array containing all elements from the list |
| 363 |
> |
* toArray() returns an Object array containing all elements from |
| 364 |
> |
* the list in insertion order |
| 365 |
|
*/ |
| 366 |
|
public void testToArray() { |
| 367 |
< |
CopyOnWriteArrayList full = populatedArray(3); |
| 368 |
< |
Object[] o = full.toArray(); |
| 369 |
< |
assertEquals(3, o.length); |
| 370 |
< |
assertEquals(0, o[0]); |
| 371 |
< |
assertEquals(1, o[1]); |
| 372 |
< |
assertEquals(2, o[2]); |
| 367 |
> |
Object[] a = new CopyOnWriteArrayList().toArray(); |
| 368 |
> |
assertTrue(Arrays.equals(new Object[0], a)); |
| 369 |
> |
assertSame(Object[].class, a.getClass()); |
| 370 |
> |
|
| 371 |
> |
Integer[] elements = new Integer[SIZE]; |
| 372 |
> |
for (int i = 0; i < SIZE; i++) |
| 373 |
> |
elements[i] = i; |
| 374 |
> |
Collections.shuffle(Arrays.asList(elements)); |
| 375 |
> |
Collection<Integer> full = populatedArray(elements); |
| 376 |
> |
|
| 377 |
> |
assertTrue(Arrays.equals(elements, full.toArray())); |
| 378 |
> |
assertSame(Object[].class, full.toArray().getClass()); |
| 379 |
|
} |
| 380 |
|
|
| 381 |
|
/** |
| 382 |
< |
* toArray returns an Integer array containing all elements from |
| 383 |
< |
* the list |
| 382 |
> |
* toArray(Integer array) returns an Integer array containing all |
| 383 |
> |
* elements from the list in insertion order |
| 384 |
|
*/ |
| 385 |
|
public void testToArray2() { |
| 386 |
< |
final int size = 3; |
| 387 |
< |
CopyOnWriteArrayList<Integer> full = populatedArray(size); |
| 388 |
< |
Integer[] ints = new Integer[size]; |
| 389 |
< |
assertSame(ints, full.toArray(ints)); |
| 390 |
< |
Iterator<Integer> it = full.iterator(); |
| 391 |
< |
for (int i = 0; i < size; i++) |
| 392 |
< |
assertSame(ints[i], it.next()); |
| 393 |
< |
assertFalse(it.hasNext()); |
| 386 |
> |
Collection empty = new CopyOnWriteArrayList(); |
| 387 |
> |
Integer[] a; |
| 388 |
> |
|
| 389 |
> |
a = new Integer[0]; |
| 390 |
> |
assertSame(a, empty.toArray(a)); |
| 391 |
> |
|
| 392 |
> |
a = new Integer[SIZE/2]; |
| 393 |
> |
Arrays.fill(a, 42); |
| 394 |
> |
assertSame(a, empty.toArray(a)); |
| 395 |
> |
assertNull(a[0]); |
| 396 |
> |
for (int i = 1; i < a.length; i++) |
| 397 |
> |
assertEquals(42, (int) a[i]); |
| 398 |
> |
|
| 399 |
> |
Integer[] elements = new Integer[SIZE]; |
| 400 |
> |
for (int i = 0; i < SIZE; i++) |
| 401 |
> |
elements[i] = i; |
| 402 |
> |
Collections.shuffle(Arrays.asList(elements)); |
| 403 |
> |
Collection<Integer> full = populatedArray(elements); |
| 404 |
> |
|
| 405 |
> |
Arrays.fill(a, 42); |
| 406 |
> |
assertTrue(Arrays.equals(elements, full.toArray(a))); |
| 407 |
> |
for (int i = 0; i < a.length; i++) |
| 408 |
> |
assertEquals(42, (int) a[i]); |
| 409 |
> |
assertSame(Integer[].class, full.toArray(a).getClass()); |
| 410 |
> |
|
| 411 |
> |
a = new Integer[SIZE]; |
| 412 |
> |
Arrays.fill(a, 42); |
| 413 |
> |
assertSame(a, full.toArray(a)); |
| 414 |
> |
assertTrue(Arrays.equals(elements, a)); |
| 415 |
> |
|
| 416 |
> |
a = new Integer[2*SIZE]; |
| 417 |
> |
Arrays.fill(a, 42); |
| 418 |
> |
assertSame(a, full.toArray(a)); |
| 419 |
> |
assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE))); |
| 420 |
> |
assertNull(a[SIZE]); |
| 421 |
> |
for (int i = SIZE + 1; i < a.length; i++) |
| 422 |
> |
assertEquals(42, (int) a[i]); |
| 423 |
|
} |
| 424 |
|
|
| 425 |
|
/** |
