| 7 |
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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.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; |
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import java.util.concurrent.CopyOnWriteArrayList; |
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|
| 30 |
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} |
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|
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static CopyOnWriteArrayList<Integer> populatedArray(int n) { |
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< |
CopyOnWriteArrayList<Integer> a |
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< |
= new CopyOnWriteArrayList<Integer>(); |
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> |
CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<Integer>(); |
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assertTrue(a.isEmpty()); |
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< |
for (int i = 0; i < n; ++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 CopyOnWriteArrayList<Integer> populatedArray(Integer[] elements) { |
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CopyOnWriteArrayList<Integer> a = new CopyOnWriteArrayList<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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* a new list 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 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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*/ |
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public void testIterator() { |
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< |
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); |
| 247 |
> |
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) { |
| 292 |
> |
for (int i = 0; i < 3; ++i) |
| 293 |
|
assertTrue(s.contains(String.valueOf(i))); |
| 294 |
< |
} |
| 294 |
> |
assertEquals(new ArrayList(full).toString(), |
| 295 |
> |
full.toString()); |
| 296 |
|
} |
| 297 |
|
|
| 298 |
|
/** |
| 382 |
|
} |
| 383 |
|
|
| 384 |
|
/** |
| 385 |
< |
* toArray returns an Object array containing all elements from the list |
| 385 |
> |
* toArray() returns an Object array containing all elements from |
| 386 |
> |
* the list in insertion order |
| 387 |
|
*/ |
| 388 |
|
public void testToArray() { |
| 389 |
< |
CopyOnWriteArrayList full = populatedArray(3); |
| 390 |
< |
Object[] o = full.toArray(); |
| 391 |
< |
assertEquals(3, o.length); |
| 392 |
< |
assertEquals(0, o[0]); |
| 393 |
< |
assertEquals(1, o[1]); |
| 394 |
< |
assertEquals(2, o[2]); |
| 389 |
> |
Object[] a = new CopyOnWriteArrayList().toArray(); |
| 390 |
> |
assertTrue(Arrays.equals(new Object[0], a)); |
| 391 |
> |
assertSame(Object[].class, a.getClass()); |
| 392 |
> |
|
| 393 |
> |
Integer[] elements = new Integer[SIZE]; |
| 394 |
> |
for (int i = 0; i < SIZE; i++) |
| 395 |
> |
elements[i] = i; |
| 396 |
> |
Collections.shuffle(Arrays.asList(elements)); |
| 397 |
> |
Collection<Integer> full = populatedArray(elements); |
| 398 |
> |
|
| 399 |
> |
assertTrue(Arrays.equals(elements, full.toArray())); |
| 400 |
> |
assertSame(Object[].class, full.toArray().getClass()); |
| 401 |
|
} |
| 402 |
|
|
| 403 |
|
/** |
| 404 |
< |
* toArray returns an Integer array containing all elements from |
| 405 |
< |
* the list |
| 404 |
> |
* toArray(Integer array) returns an Integer array containing all |
| 405 |
> |
* elements from the list in insertion order |
| 406 |
|
*/ |
| 407 |
|
public void testToArray2() { |
| 408 |
< |
final int size = 3; |
| 409 |
< |
CopyOnWriteArrayList<Integer> full = populatedArray(size); |
| 410 |
< |
Integer[] ints = new Integer[size]; |
| 411 |
< |
assertSame(ints, full.toArray(ints)); |
| 412 |
< |
Iterator<Integer> it = full.iterator(); |
| 413 |
< |
for (int i = 0; i < size; i++) |
| 414 |
< |
assertSame(ints[i], it.next()); |
| 415 |
< |
assertFalse(it.hasNext()); |
| 408 |
> |
Collection empty = new CopyOnWriteArrayList(); |
| 409 |
> |
Integer[] a; |
| 410 |
> |
|
| 411 |
> |
a = new Integer[0]; |
| 412 |
> |
assertSame(a, empty.toArray(a)); |
| 413 |
> |
|
| 414 |
> |
a = new Integer[SIZE/2]; |
| 415 |
> |
Arrays.fill(a, 42); |
| 416 |
> |
assertSame(a, empty.toArray(a)); |
| 417 |
> |
assertNull(a[0]); |
| 418 |
> |
for (int i = 1; i < a.length; i++) |
| 419 |
> |
assertEquals(42, (int) a[i]); |
| 420 |
> |
|
| 421 |
> |
Integer[] elements = new Integer[SIZE]; |
| 422 |
> |
for (int i = 0; i < SIZE; i++) |
| 423 |
> |
elements[i] = i; |
| 424 |
> |
Collections.shuffle(Arrays.asList(elements)); |
| 425 |
> |
Collection<Integer> full = populatedArray(elements); |
| 426 |
> |
|
| 427 |
> |
Arrays.fill(a, 42); |
| 428 |
> |
assertTrue(Arrays.equals(elements, full.toArray(a))); |
| 429 |
> |
for (int i = 0; i < a.length; i++) |
| 430 |
> |
assertEquals(42, (int) a[i]); |
| 431 |
> |
assertSame(Integer[].class, full.toArray(a).getClass()); |
| 432 |
> |
|
| 433 |
> |
a = new Integer[SIZE]; |
| 434 |
> |
Arrays.fill(a, 42); |
| 435 |
> |
assertSame(a, full.toArray(a)); |
| 436 |
> |
assertTrue(Arrays.equals(elements, a)); |
| 437 |
> |
|
| 438 |
> |
a = new Integer[2*SIZE]; |
| 439 |
> |
Arrays.fill(a, 42); |
| 440 |
> |
assertSame(a, full.toArray(a)); |
| 441 |
> |
assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE))); |
| 442 |
> |
assertNull(a[SIZE]); |
| 443 |
> |
for (int i = SIZE + 1; i < a.length; i++) |
| 444 |
> |
assertEquals(42, (int) a[i]); |
| 445 |
|
} |
| 446 |
|
|
| 447 |
|
/** |
