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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.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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|
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public class CopyOnWriteArrayListTest extends JSR166TestCase { |
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|
| 29 |
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return new TestSuite(CopyOnWriteArrayListTest.class); |
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} |
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|
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< |
static CopyOnWriteArrayList populatedArray(int n) { |
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< |
CopyOnWriteArrayList a = new CopyOnWriteArrayList(); |
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> |
static CopyOnWriteArrayList<Integer> populatedArray(int n) { |
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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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< |
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 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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assertEquals(ints[i], a.get(i)); |
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} |
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|
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– |
|
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/** |
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* addAll adds each element from the given collection |
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*/ |
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assertEquals(0, full.size()); |
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} |
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|
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– |
|
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/** |
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* Cloned list is equal |
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*/ |
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assertEquals(a.hashCode(), b.hashCode()); |
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} |
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|
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– |
|
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/** |
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* containsAll returns true for collection with subset of elements |
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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 |
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*/ |
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public void testIterator() { |
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< |
CopyOnWriteArrayList full = populatedArray(SIZE); |
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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(SIZE, j); |
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> |
Collection empty = new CopyOnWriteArrayList(); |
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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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> |
|
| 254 |
> |
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 = populatedArray(elements); |
| 259 |
> |
|
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> |
Iterator it = full.iterator(); |
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> |
for (int j = 0; j < SIZE; j++) { |
| 262 |
> |
assertTrue(it.hasNext()); |
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> |
assertEquals(elements[j], it.next()); |
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> |
} |
| 265 |
> |
assertFalse(it.hasNext()); |
| 266 |
> |
try { |
| 267 |
> |
it.next(); |
| 268 |
> |
shouldThrow(); |
| 269 |
> |
} catch (NoSuchElementException success) {} |
| 270 |
|
} |
| 271 |
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|
| 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 |
|
/** |
| 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); |
| 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 |
< |
CopyOnWriteArrayList full = populatedArray(3); |
| 409 |
< |
Integer[] i = new Integer[3]; |
| 369 |
< |
i = (Integer[])full.toArray(i); |
| 370 |
< |
assertEquals(3, i.length); |
| 371 |
< |
assertEquals(0, i[0].intValue()); |
| 372 |
< |
assertEquals(1, i[1].intValue()); |
| 373 |
< |
assertEquals(2, i[2].intValue()); |
| 374 |
< |
} |
| 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 |
|
/** |
| 448 |
|
* sublists contains elements at indexes offset from their base |
| 460 |
|
} |
| 461 |
|
|
| 462 |
|
List s = a.subList(2, 5); |
| 463 |
< |
assertEquals(s.size(), 3); |
| 463 |
> |
assertEquals(3, s.size()); |
| 464 |
|
s.set(2, m1); |
| 465 |
|
assertEquals(a.get(4), m1); |
| 466 |
|
s.clear(); |
| 467 |
< |
assertEquals(a.size(), 7); |
| 467 |
> |
assertEquals(7, a.size()); |
| 468 |
|
} |
| 469 |
|
|
| 470 |
|
// Exception tests |
| 666 |
|
* a deserialized serialized list is equal |
| 667 |
|
*/ |
| 668 |
|
public void testSerialization() throws Exception { |
| 669 |
< |
CopyOnWriteArrayList q = populatedArray(SIZE); |
| 669 |
> |
List x = populatedArray(SIZE); |
| 670 |
> |
List y = serialClone(x); |
| 671 |
|
|
| 672 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
| 673 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
| 674 |
< |
out.writeObject(q); |
| 675 |
< |
out.close(); |
| 676 |
< |
|
| 677 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
| 678 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
| 679 |
< |
CopyOnWriteArrayList r = (CopyOnWriteArrayList)in.readObject(); |
| 680 |
< |
assertEquals(q.size(), r.size()); |
| 681 |
< |
assertTrue(q.equals(r)); |
| 682 |
< |
assertTrue(r.equals(q)); |
| 672 |
> |
assertTrue(x != y); |
| 673 |
> |
assertEquals(x.size(), y.size()); |
| 674 |
> |
assertEquals(x.toString(), y.toString()); |
| 675 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
| 676 |
> |
assertEquals(x, y); |
| 677 |
> |
assertEquals(y, x); |
| 678 |
> |
while (!x.isEmpty()) { |
| 679 |
> |
assertFalse(y.isEmpty()); |
| 680 |
> |
assertEquals(x.remove(0), y.remove(0)); |
| 681 |
> |
} |
| 682 |
> |
assertTrue(y.isEmpty()); |
| 683 |
|
} |
| 684 |
|
|
| 685 |
|
} |
