5 |
|
*/ |
6 |
|
|
7 |
|
import junit.framework.*; |
8 |
+ |
import java.io.BufferedInputStream; |
9 |
+ |
import java.io.BufferedOutputStream; |
10 |
+ |
import java.io.ByteArrayInputStream; |
11 |
+ |
import java.io.ByteArrayOutputStream; |
12 |
+ |
import java.io.ObjectInputStream; |
13 |
+ |
import java.io.ObjectOutputStream; |
14 |
|
import java.util.*; |
9 |
– |
import java.util.concurrent.*; |
15 |
|
|
16 |
|
public class ArrayDequeTest extends JSR166TestCase { |
17 |
|
public static void main(String[] args) { |
18 |
< |
junit.textui.TestRunner.run (suite()); |
18 |
> |
junit.textui.TestRunner.run(suite()); |
19 |
|
} |
20 |
|
|
21 |
|
public static Test suite() { |
22 |
< |
return new TestSuite(ArrayDequeTest.class); |
22 |
> |
return new TestSuite(ArrayDequeTest.class); |
23 |
|
} |
24 |
|
|
25 |
|
/** |
26 |
< |
* Create a queue of given size containing consecutive |
26 |
> |
* Create a deque of given size containing consecutive |
27 |
|
* Integers 0 ... n. |
28 |
|
*/ |
29 |
|
private ArrayDeque populatedDeque(int n) { |
30 |
|
ArrayDeque q = new ArrayDeque(); |
31 |
|
assertTrue(q.isEmpty()); |
32 |
< |
for(int i = 0; i < n; ++i) |
33 |
< |
assertTrue(q.offerLast(new Integer(i))); |
32 |
> |
for (int i = 0; i < n; ++i) |
33 |
> |
assertTrue(q.offerLast(new Integer(i))); |
34 |
|
assertFalse(q.isEmpty()); |
35 |
< |
assertEquals(n, q.size()); |
35 |
> |
assertEquals(n, q.size()); |
36 |
|
return q; |
37 |
|
} |
38 |
< |
|
38 |
> |
|
39 |
|
/** |
40 |
< |
* new queue is empty |
40 |
> |
* new deque is empty |
41 |
|
*/ |
42 |
|
public void testConstructor1() { |
43 |
|
assertEquals(0, new ArrayDeque().size()); |
50 |
|
try { |
51 |
|
ArrayDeque q = new ArrayDeque((Collection)null); |
52 |
|
shouldThrow(); |
53 |
< |
} |
49 |
< |
catch (NullPointerException success) {} |
53 |
> |
} catch (NullPointerException success) {} |
54 |
|
} |
55 |
|
|
56 |
|
/** |
57 |
< |
* Queue contains all elements of collection used to initialize |
57 |
> |
* Initializing from Collection of null elements throws NPE |
58 |
> |
*/ |
59 |
> |
public void testConstructor4() { |
60 |
> |
try { |
61 |
> |
Integer[] ints = new Integer[SIZE]; |
62 |
> |
ArrayDeque q = new ArrayDeque(Arrays.asList(ints)); |
63 |
> |
shouldThrow(); |
64 |
> |
} catch (NullPointerException success) {} |
65 |
> |
} |
66 |
|
|
67 |
+ |
/** |
68 |
+ |
* Initializing from Collection with some null elements throws NPE |
69 |
|
*/ |
70 |
< |
public void testConstructor6() { |
70 |
> |
public void testConstructor5() { |
71 |
|
try { |
72 |
|
Integer[] ints = new Integer[SIZE]; |
73 |
< |
for (int i = 0; i < SIZE; ++i) |
73 |
> |
for (int i = 0; i < SIZE-1; ++i) |
74 |
|
ints[i] = new Integer(i); |
75 |
|
ArrayDeque q = new ArrayDeque(Arrays.asList(ints)); |
76 |
< |
for (int i = 0; i < SIZE; ++i) |
77 |
< |
assertEquals(ints[i], q.pollFirst()); |
78 |
< |
} |
79 |
< |
finally {} |
76 |
> |
shouldThrow(); |
77 |
> |
} catch (NullPointerException success) {} |
78 |
> |
} |
79 |
> |
|
80 |
> |
/** |
81 |
> |
* Deque contains all elements of collection used to initialize |
82 |
> |
*/ |
83 |
> |
public void testConstructor6() { |
84 |
> |
Integer[] ints = new Integer[SIZE]; |
85 |
> |
for (int i = 0; i < SIZE; ++i) |
86 |
> |
ints[i] = new Integer(i); |
87 |
> |
ArrayDeque q = new ArrayDeque(Arrays.asList(ints)); |
88 |
> |
for (int i = 0; i < SIZE; ++i) |
89 |
> |
assertEquals(ints[i], q.pollFirst()); |
90 |
|
} |
91 |
|
|
92 |
|
/** |
122 |
|
* push(null) throws NPE |
123 |
|
*/ |
124 |
|
public void testPushNull() { |
125 |
< |
try { |
125 |
> |
try { |
126 |
|
ArrayDeque q = new ArrayDeque(1); |
127 |
|
q.push(null); |
128 |
|
shouldThrow(); |
129 |
< |
} catch (NullPointerException success) { } |
129 |
> |
} catch (NullPointerException success) {} |
130 |
|
} |
131 |
|
|
132 |
|
/** |
133 |
< |
* peekFirst returns element inserted with push |
133 |
> |
* peekFirst() returns element inserted with push |
134 |
|
*/ |
135 |
|
public void testPush() { |
136 |
|
ArrayDeque q = populatedDeque(3); |
137 |
|
q.pollLast(); |
138 |
< |
q.push(four); |
139 |
< |
assertEquals(four,q.peekFirst()); |
140 |
< |
} |
138 |
> |
q.push(four); |
139 |
> |
assertSame(four, q.peekFirst()); |
140 |
> |
} |
141 |
|
|
142 |
|
/** |
143 |
< |
* pop removes next element, or throws NSEE if empty |
143 |
> |
* pop() removes next element, or throws NSEE if empty |
144 |
|
*/ |
145 |
|
public void testPop() { |
146 |
|
ArrayDeque q = populatedDeque(SIZE); |
147 |
|
for (int i = 0; i < SIZE; ++i) { |
148 |
< |
assertEquals(i, ((Integer)q.pop()).intValue()); |
148 |
> |
assertEquals(i, q.pop()); |
149 |
|
} |
150 |
|
try { |
151 |
|
q.pop(); |
152 |
|
shouldThrow(); |
153 |
< |
} catch (NoSuchElementException success){ |
130 |
< |
} |
153 |
> |
} catch (NoSuchElementException success) {} |
154 |
|
} |
155 |
|
|
156 |
|
/** |
157 |
|
* offer(null) throws NPE |
158 |
|
*/ |
159 |
+ |
public void testOfferNull() { |
160 |
+ |
try { |
161 |
+ |
ArrayDeque q = new ArrayDeque(); |
162 |
+ |
q.offer(null); |
163 |
+ |
shouldThrow(); |
164 |
+ |
} catch (NullPointerException success) {} |
165 |
+ |
} |
166 |
+ |
|
167 |
+ |
/** |
168 |
+ |
* offerFirst(null) throws NPE |
169 |
+ |
*/ |
170 |
|
public void testOfferFirstNull() { |
171 |
< |
try { |
171 |
> |
try { |
172 |
|
ArrayDeque q = new ArrayDeque(); |
173 |
|
q.offerFirst(null); |
174 |
|
shouldThrow(); |
175 |
< |
} catch (NullPointerException success) { |
176 |
< |
} |
175 |
> |
} catch (NullPointerException success) {} |
176 |
> |
} |
177 |
> |
|
178 |
> |
/** |
179 |
> |
* offerLast(null) throws NPE |
180 |
> |
*/ |
181 |
> |
public void testOfferLastNull() { |
182 |
> |
try { |
183 |
> |
ArrayDeque q = new ArrayDeque(); |
184 |
> |
q.offerLast(null); |
185 |
> |
shouldThrow(); |
186 |
> |
} catch (NullPointerException success) {} |
187 |
> |
} |
188 |
> |
|
189 |
> |
/** |
190 |
> |
* offer(x) succeeds |
191 |
> |
*/ |
192 |
> |
public void testOffer() { |
193 |
> |
ArrayDeque q = new ArrayDeque(); |
194 |
> |
assertTrue(q.offer(zero)); |
195 |
> |
assertTrue(q.offer(one)); |
196 |
> |
assertSame(zero, q.peekFirst()); |
197 |
> |
assertSame(one, q.peekLast()); |
198 |
|
} |
199 |
|
|
200 |
|
/** |
201 |
< |
* OfferFirst succeeds |
201 |
> |
* offerFirst(x) succeeds |
202 |
|
*/ |
203 |
|
public void testOfferFirst() { |
204 |
|
ArrayDeque q = new ArrayDeque(); |
205 |
< |
assertTrue(q.offerFirst(new Integer(0))); |
206 |
< |
assertTrue(q.offerFirst(new Integer(1))); |
205 |
> |
assertTrue(q.offerFirst(zero)); |
206 |
> |
assertTrue(q.offerFirst(one)); |
207 |
> |
assertSame(one, q.peekFirst()); |
208 |
> |
assertSame(zero, q.peekLast()); |
209 |
|
} |
210 |
|
|
211 |
|
/** |
212 |
< |
* OfferLast succeeds |
212 |
> |
* offerLast(x) succeeds |
213 |
|
*/ |
214 |
|
public void testOfferLast() { |
215 |
|
ArrayDeque q = new ArrayDeque(); |
216 |
< |
assertTrue(q.offerLast(new Integer(0))); |
217 |
< |
assertTrue(q.offerLast(new Integer(1))); |
216 |
> |
assertTrue(q.offerLast(zero)); |
217 |
> |
assertTrue(q.offerLast(one)); |
218 |
> |
assertSame(zero, q.peekFirst()); |
219 |
> |
assertSame(one, q.peekLast()); |
220 |
|
} |
221 |
|
|
222 |
|
/** |
223 |
< |
* add succeeds |
223 |
> |
* add(null) throws NPE |
224 |
> |
*/ |
225 |
> |
public void testAddNull() { |
226 |
> |
try { |
227 |
> |
ArrayDeque q = new ArrayDeque(); |
228 |
> |
q.add(null); |
229 |
> |
shouldThrow(); |
230 |
> |
} catch (NullPointerException success) {} |
231 |
> |
} |
232 |
> |
|
233 |
> |
/** |
234 |
> |
* addFirst(null) throws NPE |
235 |
> |
*/ |
236 |
> |
public void testAddFirstNull() { |
237 |
> |
try { |
238 |
> |
ArrayDeque q = new ArrayDeque(); |
239 |
> |
q.addFirst(null); |
240 |
> |
shouldThrow(); |
241 |
> |
} catch (NullPointerException success) {} |
242 |
> |
} |
243 |
> |
|
244 |
> |
/** |
245 |
> |
* addLast(null) throws NPE |
246 |
> |
*/ |
247 |
> |
public void testAddLastNull() { |
248 |
> |
try { |
249 |
> |
ArrayDeque q = new ArrayDeque(); |
250 |
> |
q.addLast(null); |
251 |
> |
shouldThrow(); |
252 |
> |
} catch (NullPointerException success) {} |
253 |
> |
} |
254 |
> |
|
255 |
> |
/** |
256 |
> |
* add(x) succeeds |
257 |
|
*/ |
258 |
|
public void testAdd() { |
259 |
|
ArrayDeque q = new ArrayDeque(); |
260 |
< |
for (int i = 0; i < SIZE; ++i) { |
261 |
< |
assertEquals(i, q.size()); |
262 |
< |
assertTrue(q.add(new Integer(i))); |
263 |
< |
} |
260 |
> |
assertTrue(q.add(zero)); |
261 |
> |
assertTrue(q.add(one)); |
262 |
> |
assertSame(zero, q.peekFirst()); |
263 |
> |
assertSame(one, q.peekLast()); |
264 |
> |
} |
265 |
> |
|
266 |
> |
/** |
267 |
> |
* addFirst(x) succeeds |
268 |
> |
*/ |
269 |
> |
public void testAddFirst() { |
270 |
> |
ArrayDeque q = new ArrayDeque(); |
271 |
> |
q.addFirst(zero); |
272 |
> |
q.addFirst(one); |
273 |
> |
assertSame(one, q.peekFirst()); |
274 |
> |
assertSame(zero, q.peekLast()); |
275 |
> |
} |
276 |
> |
|
277 |
> |
/** |
278 |
> |
* addLast(x) succeeds |
279 |
> |
*/ |
280 |
> |
public void testAddLast() { |
281 |
> |
ArrayDeque q = new ArrayDeque(); |
282 |
> |
q.addLast(zero); |
283 |
> |
q.addLast(one); |
284 |
> |
assertSame(zero, q.peekFirst()); |
285 |
> |
assertSame(one, q.peekLast()); |
286 |
|
} |
287 |
|
|
288 |
|
/** |
293 |
|
ArrayDeque q = new ArrayDeque(); |
294 |
|
q.addAll(null); |
295 |
|
shouldThrow(); |
296 |
< |
} |
183 |
< |
catch (NullPointerException success) {} |
296 |
> |
} catch (NullPointerException success) {} |
297 |
|
} |
298 |
|
|
299 |
|
/** |
300 |
< |
* Queue contains all elements, in traversal order, of successful addAll |
300 |
> |
* addAll of a collection with null elements throws NPE |
301 |
|
*/ |
302 |
< |
public void testAddAll5() { |
302 |
> |
public void testAddAll2() { |
303 |
|
try { |
304 |
< |
Integer[] empty = new Integer[0]; |
304 |
> |
ArrayDeque q = new ArrayDeque(); |
305 |
|
Integer[] ints = new Integer[SIZE]; |
306 |
< |
for (int i = 0; i < SIZE; ++i) |
307 |
< |
ints[i] = new Integer(i); |
306 |
> |
q.addAll(Arrays.asList(ints)); |
307 |
> |
shouldThrow(); |
308 |
> |
} catch (NullPointerException success) {} |
309 |
> |
} |
310 |
> |
|
311 |
> |
/** |
312 |
> |
* addAll of a collection with any null elements throws NPE after |
313 |
> |
* possibly adding some elements |
314 |
> |
*/ |
315 |
> |
public void testAddAll3() { |
316 |
> |
try { |
317 |
|
ArrayDeque q = new ArrayDeque(); |
318 |
< |
assertFalse(q.addAll(Arrays.asList(empty))); |
319 |
< |
assertTrue(q.addAll(Arrays.asList(ints))); |
320 |
< |
for (int i = 0; i < SIZE; ++i) |
321 |
< |
assertEquals(ints[i], q.pollFirst()); |
322 |
< |
} |
323 |
< |
finally {} |
318 |
> |
Integer[] ints = new Integer[SIZE]; |
319 |
> |
for (int i = 0; i < SIZE-1; ++i) |
320 |
> |
ints[i] = new Integer(i); |
321 |
> |
q.addAll(Arrays.asList(ints)); |
322 |
> |
shouldThrow(); |
323 |
> |
} catch (NullPointerException success) {} |
324 |
> |
} |
325 |
> |
|
326 |
> |
/** |
327 |
> |
* Deque contains all elements, in traversal order, of successful addAll |
328 |
> |
*/ |
329 |
> |
public void testAddAll5() { |
330 |
> |
Integer[] empty = new Integer[0]; |
331 |
> |
Integer[] ints = new Integer[SIZE]; |
332 |
> |
for (int i = 0; i < SIZE; ++i) |
333 |
> |
ints[i] = new Integer(i); |
334 |
> |
ArrayDeque q = new ArrayDeque(); |
335 |
> |
assertFalse(q.addAll(Arrays.asList(empty))); |
336 |
> |
assertTrue(q.addAll(Arrays.asList(ints))); |
337 |
> |
for (int i = 0; i < SIZE; ++i) |
338 |
> |
assertEquals(ints[i], q.pollFirst()); |
339 |
|
} |
340 |
|
|
341 |
|
/** |
342 |
< |
* pollFirst succeeds unless empty |
342 |
> |
* pollFirst() succeeds unless empty |
343 |
|
*/ |
344 |
|
public void testPollFirst() { |
345 |
|
ArrayDeque q = populatedDeque(SIZE); |
346 |
|
for (int i = 0; i < SIZE; ++i) { |
347 |
< |
assertEquals(i, ((Integer)q.pollFirst()).intValue()); |
347 |
> |
assertEquals(i, q.pollFirst()); |
348 |
|
} |
349 |
< |
assertNull(q.pollFirst()); |
349 |
> |
assertNull(q.pollFirst()); |
350 |
|
} |
351 |
|
|
352 |
|
/** |
353 |
< |
* pollLast succeeds unless empty |
353 |
> |
* pollLast() succeeds unless empty |
354 |
|
*/ |
355 |
|
public void testPollLast() { |
356 |
|
ArrayDeque q = populatedDeque(SIZE); |
357 |
|
for (int i = SIZE-1; i >= 0; --i) { |
358 |
< |
assertEquals(i, ((Integer)q.pollLast()).intValue()); |
358 |
> |
assertEquals(i, q.pollLast()); |
359 |
|
} |
360 |
< |
assertNull(q.pollLast()); |
360 |
> |
assertNull(q.pollLast()); |
361 |
|
} |
362 |
|
|
363 |
|
/** |
364 |
< |
* poll succeeds unless empty |
364 |
> |
* poll() succeeds unless empty |
365 |
|
*/ |
366 |
|
public void testPoll() { |
367 |
|
ArrayDeque q = populatedDeque(SIZE); |
368 |
|
for (int i = 0; i < SIZE; ++i) { |
369 |
< |
assertEquals(i, ((Integer)q.poll()).intValue()); |
369 |
> |
assertEquals(i, q.poll()); |
370 |
|
} |
371 |
< |
assertNull(q.poll()); |
371 |
> |
assertNull(q.poll()); |
372 |
|
} |
373 |
|
|
374 |
|
/** |
375 |
< |
* remove removes next element, or throws NSEE if empty |
375 |
> |
* remove() removes next element, or throws NSEE if empty |
376 |
|
*/ |
377 |
|
public void testRemove() { |
378 |
|
ArrayDeque q = populatedDeque(SIZE); |
379 |
|
for (int i = 0; i < SIZE; ++i) { |
380 |
< |
assertEquals(i, ((Integer)q.remove()).intValue()); |
380 |
> |
assertEquals(i, q.remove()); |
381 |
|
} |
382 |
|
try { |
383 |
|
q.remove(); |
384 |
|
shouldThrow(); |
385 |
< |
} catch (NoSuchElementException success){ |
386 |
< |
} |
385 |
> |
} catch (NoSuchElementException success) {} |
386 |
> |
} |
387 |
> |
|
388 |
> |
/** |
389 |
> |
* remove(x) removes x and returns true if present |
390 |
> |
*/ |
391 |
> |
public void testRemoveElement() { |
392 |
> |
ArrayDeque q = populatedDeque(SIZE); |
393 |
> |
for (int i = 1; i < SIZE; i+=2) { |
394 |
> |
assertTrue(q.remove(new Integer(i))); |
395 |
> |
} |
396 |
> |
for (int i = 0; i < SIZE; i+=2) { |
397 |
> |
assertTrue(q.remove(new Integer(i))); |
398 |
> |
assertFalse(q.remove(new Integer(i+1))); |
399 |
> |
} |
400 |
> |
assertTrue(q.isEmpty()); |
401 |
|
} |
402 |
|
|
403 |
|
/** |
404 |
< |
* peekFirst returns next element, or null if empty |
404 |
> |
* peekFirst() returns next element, or null if empty |
405 |
|
*/ |
406 |
|
public void testPeekFirst() { |
407 |
|
ArrayDeque q = populatedDeque(SIZE); |
408 |
|
for (int i = 0; i < SIZE; ++i) { |
409 |
< |
assertEquals(i, ((Integer)q.peekFirst()).intValue()); |
410 |
< |
q.pollFirst(); |
409 |
> |
assertEquals(i, q.peekFirst()); |
410 |
> |
assertEquals(i, q.pollFirst()); |
411 |
|
assertTrue(q.peekFirst() == null || |
412 |
< |
i != ((Integer)q.peekFirst()).intValue()); |
412 |
> |
!q.peekFirst().equals(i)); |
413 |
|
} |
414 |
< |
assertNull(q.peekFirst()); |
414 |
> |
assertNull(q.peekFirst()); |
415 |
|
} |
416 |
|
|
417 |
|
/** |
418 |
< |
* peek returns next element, or null if empty |
418 |
> |
* peek() returns next element, or null if empty |
419 |
|
*/ |
420 |
|
public void testPeek() { |
421 |
|
ArrayDeque q = populatedDeque(SIZE); |
422 |
|
for (int i = 0; i < SIZE; ++i) { |
423 |
< |
assertEquals(i, ((Integer)q.peek()).intValue()); |
424 |
< |
q.poll(); |
423 |
> |
assertEquals(i, q.peek()); |
424 |
> |
assertEquals(i, q.poll()); |
425 |
|
assertTrue(q.peek() == null || |
426 |
< |
i != ((Integer)q.peek()).intValue()); |
426 |
> |
!q.peek().equals(i)); |
427 |
|
} |
428 |
< |
assertNull(q.peek()); |
428 |
> |
assertNull(q.peek()); |
429 |
|
} |
430 |
|
|
431 |
|
/** |
432 |
< |
* peekLast returns next element, or null if empty |
432 |
> |
* peekLast() returns next element, or null if empty |
433 |
|
*/ |
434 |
|
public void testPeekLast() { |
435 |
|
ArrayDeque q = populatedDeque(SIZE); |
436 |
|
for (int i = SIZE-1; i >= 0; --i) { |
437 |
< |
assertEquals(i, ((Integer)q.peekLast()).intValue()); |
438 |
< |
q.pollLast(); |
437 |
> |
assertEquals(i, q.peekLast()); |
438 |
> |
assertEquals(i, q.pollLast()); |
439 |
|
assertTrue(q.peekLast() == null || |
440 |
< |
i != ((Integer)q.peekLast()).intValue()); |
440 |
> |
!q.peekLast().equals(i)); |
441 |
> |
} |
442 |
> |
assertNull(q.peekLast()); |
443 |
> |
} |
444 |
> |
|
445 |
> |
/** |
446 |
> |
* element() returns first element, or throws NSEE if empty |
447 |
> |
*/ |
448 |
> |
public void testElement() { |
449 |
> |
ArrayDeque q = populatedDeque(SIZE); |
450 |
> |
for (int i = 0; i < SIZE; ++i) { |
451 |
> |
assertEquals(i, q.element()); |
452 |
> |
assertEquals(i, q.poll()); |
453 |
|
} |
454 |
< |
assertNull(q.peekLast()); |
454 |
> |
try { |
455 |
> |
q.element(); |
456 |
> |
shouldThrow(); |
457 |
> |
} catch (NoSuchElementException success) {} |
458 |
|
} |
459 |
|
|
460 |
|
/** |
461 |
< |
* getFirst returns next getFirst, or throws NSEE if empty |
461 |
> |
* getFirst() returns first element, or throws NSEE if empty |
462 |
|
*/ |
463 |
|
public void testFirstElement() { |
464 |
|
ArrayDeque q = populatedDeque(SIZE); |
465 |
|
for (int i = 0; i < SIZE; ++i) { |
466 |
< |
assertEquals(i, ((Integer)q.getFirst()).intValue()); |
467 |
< |
q.pollFirst(); |
466 |
> |
assertEquals(i, q.getFirst()); |
467 |
> |
assertEquals(i, q.pollFirst()); |
468 |
|
} |
469 |
|
try { |
470 |
|
q.getFirst(); |
471 |
|
shouldThrow(); |
472 |
< |
} |
307 |
< |
catch (NoSuchElementException success) {} |
472 |
> |
} catch (NoSuchElementException success) {} |
473 |
|
} |
474 |
|
|
475 |
|
/** |
476 |
< |
* getLast returns next element, or throws NSEE if empty |
476 |
> |
* getLast() returns last element, or throws NSEE if empty |
477 |
|
*/ |
478 |
|
public void testLastElement() { |
479 |
|
ArrayDeque q = populatedDeque(SIZE); |
480 |
|
for (int i = SIZE-1; i >= 0; --i) { |
481 |
< |
assertEquals(i, ((Integer)q.getLast()).intValue()); |
482 |
< |
q.pollLast(); |
481 |
> |
assertEquals(i, q.getLast()); |
482 |
> |
assertEquals(i, q.pollLast()); |
483 |
|
} |
484 |
|
try { |
485 |
|
q.getLast(); |
486 |
|
shouldThrow(); |
487 |
< |
} |
488 |
< |
catch (NoSuchElementException success) {} |
324 |
< |
assertNull(q.peekLast()); |
487 |
> |
} catch (NoSuchElementException success) {} |
488 |
> |
assertNull(q.peekLast()); |
489 |
|
} |
490 |
|
|
491 |
|
|
492 |
|
/** |
493 |
< |
* removeFirst removes next element, or throws NSEE if empty |
493 |
> |
* removeFirst() removes first element, or throws NSEE if empty |
494 |
|
*/ |
495 |
|
public void testRemoveFirst() { |
496 |
|
ArrayDeque q = populatedDeque(SIZE); |
497 |
|
for (int i = 0; i < SIZE; ++i) { |
498 |
< |
assertEquals(i, ((Integer)q.removeFirst()).intValue()); |
498 |
> |
assertEquals(i, q.removeFirst()); |
499 |
|
} |
500 |
|
try { |
501 |
|
q.removeFirst(); |
502 |
|
shouldThrow(); |
503 |
< |
} catch (NoSuchElementException success){ |
504 |
< |
} |
503 |
> |
} catch (NoSuchElementException success) {} |
504 |
> |
assertNull(q.peekFirst()); |
505 |
> |
} |
506 |
> |
|
507 |
> |
/** |
508 |
> |
* removeLast() removes last element, or throws NSEE if empty |
509 |
> |
*/ |
510 |
> |
public void testRemoveLast() { |
511 |
> |
ArrayDeque q = populatedDeque(SIZE); |
512 |
> |
for (int i = SIZE - 1; i >= 0; --i) { |
513 |
> |
assertEquals(i, q.removeLast()); |
514 |
> |
} |
515 |
> |
try { |
516 |
> |
q.removeLast(); |
517 |
> |
shouldThrow(); |
518 |
> |
} catch (NoSuchElementException success) {} |
519 |
> |
assertNull(q.peekLast()); |
520 |
|
} |
521 |
|
|
522 |
|
/** |
556 |
|
ArrayDeque q = populatedDeque(SIZE); |
557 |
|
for (int i = 0; i < SIZE; ++i) { |
558 |
|
assertTrue(q.contains(new Integer(i))); |
559 |
< |
q.pollFirst(); |
559 |
> |
assertEquals(i, q.pollFirst()); |
560 |
|
assertFalse(q.contains(new Integer(i))); |
561 |
|
} |
562 |
|
} |
569 |
|
q.clear(); |
570 |
|
assertTrue(q.isEmpty()); |
571 |
|
assertEquals(0, q.size()); |
572 |
< |
q.add(new Integer(1)); |
572 |
> |
assertTrue(q.add(new Integer(1))); |
573 |
|
assertFalse(q.isEmpty()); |
574 |
|
q.clear(); |
575 |
|
assertTrue(q.isEmpty()); |
584 |
|
for (int i = 0; i < SIZE; ++i) { |
585 |
|
assertTrue(q.containsAll(p)); |
586 |
|
assertFalse(p.containsAll(q)); |
587 |
< |
p.add(new Integer(i)); |
587 |
> |
assertTrue(p.add(new Integer(i))); |
588 |
|
} |
589 |
|
assertTrue(p.containsAll(q)); |
590 |
|
} |
597 |
|
ArrayDeque p = populatedDeque(SIZE); |
598 |
|
for (int i = 0; i < SIZE; ++i) { |
599 |
|
boolean changed = q.retainAll(p); |
600 |
< |
if (i == 0) |
422 |
< |
assertFalse(changed); |
423 |
< |
else |
424 |
< |
assertTrue(changed); |
425 |
< |
|
600 |
> |
assertEquals(changed, (i > 0)); |
601 |
|
assertTrue(q.containsAll(p)); |
602 |
|
assertEquals(SIZE-i, q.size()); |
603 |
|
p.removeFirst(); |
614 |
|
assertTrue(q.removeAll(p)); |
615 |
|
assertEquals(SIZE-i, q.size()); |
616 |
|
for (int j = 0; j < i; ++j) { |
617 |
< |
Integer I = (Integer)(p.removeFirst()); |
443 |
< |
assertFalse(q.contains(I)); |
617 |
> |
assertFalse(q.contains(p.removeFirst())); |
618 |
|
} |
619 |
|
} |
620 |
|
} |
621 |
|
|
622 |
|
/** |
623 |
< |
* toArray contains all elements |
623 |
> |
* toArray() contains all elements in FIFO order |
624 |
|
*/ |
625 |
|
public void testToArray() { |
626 |
|
ArrayDeque q = populatedDeque(SIZE); |
627 |
< |
Object[] o = q.toArray(); |
628 |
< |
Arrays.sort(o); |
629 |
< |
for(int i = 0; i < o.length; i++) |
456 |
< |
assertEquals(o[i], q.pollFirst()); |
627 |
> |
Object[] o = q.toArray(); |
628 |
> |
for (int i = 0; i < o.length; i++) |
629 |
> |
assertSame(o[i], q.pollFirst()); |
630 |
|
} |
631 |
|
|
632 |
|
/** |
633 |
< |
* toArray(a) contains all elements |
633 |
> |
* toArray(a) contains all elements in FIFO order |
634 |
|
*/ |
635 |
|
public void testToArray2() { |
636 |
|
ArrayDeque q = populatedDeque(SIZE); |
637 |
< |
Integer[] ints = new Integer[SIZE]; |
638 |
< |
ints = (Integer[])q.toArray(ints); |
639 |
< |
Arrays.sort(ints); |
640 |
< |
for(int i = 0; i < ints.length; i++) |
468 |
< |
assertEquals(ints[i], q.pollFirst()); |
637 |
> |
Integer[] ints = new Integer[SIZE]; |
638 |
> |
assertSame(ints, q.toArray(ints)); |
639 |
> |
for (int i = 0; i < ints.length; i++) |
640 |
> |
assertSame(ints[i], q.remove()); |
641 |
|
} |
642 |
|
|
643 |
|
/** |
644 |
< |
* toArray(null) throws NPE |
644 |
> |
* toArray(null) throws NullPointerException |
645 |
|
*/ |
646 |
< |
public void testToArray_BadArg() { |
647 |
< |
try { |
648 |
< |
ArrayDeque l = new ArrayDeque(); |
649 |
< |
l.add(new Object()); |
650 |
< |
Object o[] = l.toArray(null); |
651 |
< |
shouldThrow(); |
652 |
< |
} catch(NullPointerException success){} |
646 |
> |
public void testToArray_NullArg() { |
647 |
> |
ArrayDeque l = new ArrayDeque(); |
648 |
> |
l.add(new Object()); |
649 |
> |
try { |
650 |
> |
l.toArray(null); |
651 |
> |
shouldThrow(); |
652 |
> |
} catch (NullPointerException success) {} |
653 |
|
} |
654 |
|
|
655 |
|
/** |
656 |
< |
* toArray with incompatable aray type throws CCE |
656 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
657 |
|
*/ |
658 |
|
public void testToArray1_BadArg() { |
659 |
< |
try { |
660 |
< |
ArrayDeque l = new ArrayDeque(); |
661 |
< |
l.add(new Integer(5)); |
662 |
< |
Object o[] = l.toArray(new String[10] ); |
663 |
< |
shouldThrow(); |
664 |
< |
} catch(ArrayStoreException success){} |
659 |
> |
ArrayDeque l = new ArrayDeque(); |
660 |
> |
l.add(new Integer(5)); |
661 |
> |
try { |
662 |
> |
l.toArray(new String[10]); |
663 |
> |
shouldThrow(); |
664 |
> |
} catch (ArrayStoreException success) {} |
665 |
|
} |
666 |
< |
|
666 |
> |
|
667 |
|
/** |
668 |
< |
* iterator iterates through all elements |
668 |
> |
* Iterator iterates through all elements |
669 |
|
*/ |
670 |
|
public void testIterator() { |
671 |
|
ArrayDeque q = populatedDeque(SIZE); |
672 |
|
int i = 0; |
673 |
< |
Iterator it = q.iterator(); |
674 |
< |
while(it.hasNext()) { |
673 |
> |
Iterator it = q.iterator(); |
674 |
> |
while (it.hasNext()) { |
675 |
|
assertTrue(q.contains(it.next())); |
676 |
|
++i; |
677 |
|
} |
679 |
|
} |
680 |
|
|
681 |
|
/** |
682 |
< |
* iterator ordering is FIFO |
682 |
> |
* Iterator ordering is FIFO |
683 |
|
*/ |
684 |
|
public void testIteratorOrdering() { |
685 |
|
final ArrayDeque q = new ArrayDeque(); |
686 |
< |
q.add(new Integer(1)); |
687 |
< |
q.add(new Integer(2)); |
688 |
< |
q.add(new Integer(3)); |
686 |
> |
q.add(one); |
687 |
> |
q.add(two); |
688 |
> |
q.add(three); |
689 |
|
int k = 0; |
690 |
|
for (Iterator it = q.iterator(); it.hasNext();) { |
691 |
< |
int i = ((Integer)(it.next())).intValue(); |
520 |
< |
assertEquals(++k, i); |
691 |
> |
assertEquals(++k, it.next()); |
692 |
|
} |
693 |
|
|
694 |
|
assertEquals(3, k); |
695 |
|
} |
696 |
|
|
697 |
|
/** |
698 |
< |
* iterator.remove removes current element |
698 |
> |
* iterator.remove() removes current element |
699 |
|
*/ |
700 |
< |
public void testIteratorRemove () { |
700 |
> |
public void testIteratorRemove() { |
701 |
|
final ArrayDeque q = new ArrayDeque(); |
702 |
+ |
final Random rng = new Random(); |
703 |
|
for (int iters = 0; iters < 100; ++iters) { |
704 |
< |
q.add(new Integer(1)); |
705 |
< |
q.add(new Integer(2)); |
706 |
< |
q.add(new Integer(3)); |
704 |
> |
int max = rng.nextInt(5) + 2; |
705 |
> |
int split = rng.nextInt(max-1) + 1; |
706 |
> |
for (int j = 1; j <= max; ++j) |
707 |
> |
q.add(new Integer(j)); |
708 |
|
Iterator it = q.iterator(); |
709 |
< |
assertEquals(it.next(), new Integer(1)); |
709 |
> |
for (int j = 1; j <= split; ++j) |
710 |
> |
assertEquals(it.next(), new Integer(j)); |
711 |
|
it.remove(); |
712 |
< |
assertEquals(it.next(), new Integer(2)); |
712 |
> |
assertEquals(it.next(), new Integer(split+1)); |
713 |
> |
for (int j = 1; j <= split; ++j) |
714 |
> |
q.remove(new Integer(j)); |
715 |
|
it = q.iterator(); |
716 |
< |
assertEquals(it.next(), new Integer(2)); |
717 |
< |
assertEquals(it.next(), new Integer(3)); |
718 |
< |
it.remove(); |
716 |
> |
for (int j = split+1; j <= max; ++j) { |
717 |
> |
assertEquals(it.next(), new Integer(j)); |
718 |
> |
it.remove(); |
719 |
> |
} |
720 |
|
assertFalse(it.hasNext()); |
721 |
< |
q.remove(); |
721 |
> |
assertTrue(q.isEmpty()); |
722 |
|
} |
723 |
|
} |
724 |
|
|
725 |
|
/** |
726 |
< |
* Descending iterator iterates through all elements |
726 |
> |
* Descending iterator iterates through all elements |
727 |
|
*/ |
728 |
|
public void testDescendingIterator() { |
729 |
|
ArrayDeque q = populatedDeque(SIZE); |
730 |
|
int i = 0; |
731 |
< |
Iterator it = q.descendingIterator(); |
732 |
< |
while(it.hasNext()) { |
731 |
> |
Iterator it = q.descendingIterator(); |
732 |
> |
while (it.hasNext()) { |
733 |
|
assertTrue(q.contains(it.next())); |
734 |
|
++i; |
735 |
|
} |
737 |
|
assertFalse(it.hasNext()); |
738 |
|
try { |
739 |
|
it.next(); |
740 |
< |
} catch(NoSuchElementException success) { |
741 |
< |
} |
740 |
> |
shouldThrow(); |
741 |
> |
} catch (NoSuchElementException success) {} |
742 |
|
} |
743 |
|
|
744 |
|
/** |
745 |
< |
* Descending iterator ordering is reverse FIFO |
745 |
> |
* Descending iterator ordering is reverse FIFO |
746 |
|
*/ |
747 |
|
public void testDescendingIteratorOrdering() { |
748 |
|
final ArrayDeque q = new ArrayDeque(); |
752 |
|
q.add(new Integer(1)); |
753 |
|
int k = 0; |
754 |
|
for (Iterator it = q.descendingIterator(); it.hasNext();) { |
755 |
< |
int i = ((Integer)(it.next())).intValue(); |
579 |
< |
assertEquals(++k, i); |
755 |
> |
assertEquals(++k, it.next()); |
756 |
|
} |
757 |
< |
|
757 |
> |
|
758 |
|
assertEquals(3, k); |
759 |
|
q.remove(); |
760 |
|
q.remove(); |
763 |
|
} |
764 |
|
|
765 |
|
/** |
766 |
< |
* descendingIterator.remove removes current element |
766 |
> |
* descendingIterator.remove() removes current element |
767 |
|
*/ |
768 |
< |
public void testDescendingIteratorRemove () { |
768 |
> |
public void testDescendingIteratorRemove() { |
769 |
|
final ArrayDeque q = new ArrayDeque(); |
770 |
+ |
final Random rng = new Random(); |
771 |
|
for (int iters = 0; iters < 100; ++iters) { |
772 |
< |
q.add(new Integer(3)); |
773 |
< |
q.add(new Integer(2)); |
774 |
< |
q.add(new Integer(1)); |
772 |
> |
int max = rng.nextInt(5) + 2; |
773 |
> |
int split = rng.nextInt(max-1) + 1; |
774 |
> |
for (int j = max; j >= 1; --j) |
775 |
> |
q.add(new Integer(j)); |
776 |
|
Iterator it = q.descendingIterator(); |
777 |
< |
assertEquals(it.next(), new Integer(1)); |
777 |
> |
for (int j = 1; j <= split; ++j) |
778 |
> |
assertEquals(it.next(), new Integer(j)); |
779 |
|
it.remove(); |
780 |
< |
assertEquals(it.next(), new Integer(2)); |
780 |
> |
assertEquals(it.next(), new Integer(split+1)); |
781 |
> |
for (int j = 1; j <= split; ++j) |
782 |
> |
q.remove(new Integer(j)); |
783 |
|
it = q.descendingIterator(); |
784 |
< |
assertEquals(it.next(), new Integer(2)); |
785 |
< |
assertEquals(it.next(), new Integer(3)); |
786 |
< |
it.remove(); |
784 |
> |
for (int j = split+1; j <= max; ++j) { |
785 |
> |
assertEquals(it.next(), new Integer(j)); |
786 |
> |
it.remove(); |
787 |
> |
} |
788 |
|
assertFalse(it.hasNext()); |
789 |
< |
q.remove(); |
789 |
> |
assertTrue(q.isEmpty()); |
790 |
|
} |
791 |
|
} |
792 |
|
|
793 |
|
|
794 |
|
/** |
795 |
< |
* toString contains toStrings of elements |
795 |
> |
* toString() contains toStrings of elements |
796 |
|
*/ |
797 |
|
public void testToString() { |
798 |
|
ArrayDeque q = populatedDeque(SIZE); |
800 |
|
for (int i = 0; i < SIZE; ++i) { |
801 |
|
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
802 |
|
} |
803 |
< |
} |
622 |
< |
|
623 |
< |
/** |
624 |
< |
* peekFirst returns element inserted with addFirst |
625 |
< |
*/ |
626 |
< |
public void testAddFirst() { |
627 |
< |
ArrayDeque q = populatedDeque(3); |
628 |
< |
q.addFirst(four); |
629 |
< |
assertEquals(four,q.peekFirst()); |
630 |
< |
} |
803 |
> |
} |
804 |
|
|
805 |
|
/** |
806 |
< |
* peekLast returns element inserted with addLast |
806 |
> |
* A deserialized serialized deque has same elements in same order |
807 |
|
*/ |
808 |
< |
public void testAddLast() { |
809 |
< |
ArrayDeque q = populatedDeque(3); |
810 |
< |
q.addLast(four); |
811 |
< |
assertEquals(four,q.peekLast()); |
812 |
< |
} |
808 |
> |
public void testSerialization() throws Exception { |
809 |
> |
ArrayDeque q = populatedDeque(SIZE); |
810 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
811 |
> |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
812 |
> |
out.writeObject(q); |
813 |
> |
out.close(); |
814 |
> |
|
815 |
> |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
816 |
> |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
817 |
> |
ArrayDeque r = (ArrayDeque)in.readObject(); |
818 |
> |
assertEquals(q.size(), r.size()); |
819 |
> |
while (!q.isEmpty()) |
820 |
> |
assertEquals(q.remove(), r.remove()); |
821 |
> |
} |
822 |
|
|
823 |
|
} |