1 |
dl |
1.1 |
/* |
2 |
|
|
* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
|
|
* Expert Group and released to the public domain, as explained at |
4 |
jsr166 |
1.18 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
dl |
1.1 |
*/ |
6 |
|
|
|
7 |
jsr166 |
1.20 |
import java.util.Arrays; |
8 |
|
|
import java.util.Comparator; |
9 |
|
|
import java.util.Iterator; |
10 |
|
|
import java.util.NavigableSet; |
11 |
|
|
import java.util.SortedSet; |
12 |
|
|
import java.util.concurrent.ConcurrentSkipListSet; |
13 |
dl |
1.1 |
|
14 |
jsr166 |
1.26 |
import junit.framework.Test; |
15 |
|
|
import junit.framework.TestSuite; |
16 |
|
|
|
17 |
dl |
1.1 |
public class ConcurrentSkipListSubSetTest extends JSR166TestCase { |
18 |
|
|
public static void main(String[] args) { |
19 |
jsr166 |
1.32 |
main(suite(), args); |
20 |
dl |
1.1 |
} |
21 |
|
|
public static Test suite() { |
22 |
jsr166 |
1.8 |
return new TestSuite(ConcurrentSkipListSubSetTest.class); |
23 |
dl |
1.1 |
} |
24 |
|
|
|
25 |
jsr166 |
1.5 |
static class MyReverseComparator implements Comparator { |
26 |
dl |
1.40 |
@SuppressWarnings("unchecked") |
27 |
dl |
1.1 |
public int compare(Object x, Object y) { |
28 |
jsr166 |
1.11 |
return ((Comparable)y).compareTo(x); |
29 |
dl |
1.1 |
} |
30 |
|
|
} |
31 |
|
|
|
32 |
|
|
/** |
33 |
jsr166 |
1.23 |
* Returns a new set of given size containing consecutive |
34 |
dl |
1.40 |
* Items 0 ... n - 1. |
35 |
dl |
1.1 |
*/ |
36 |
dl |
1.40 |
private static NavigableSet<Item> populatedSet(int n) { |
37 |
|
|
ConcurrentSkipListSet<Item> q = new ConcurrentSkipListSet<>(); |
38 |
dl |
1.1 |
assertTrue(q.isEmpty()); |
39 |
|
|
|
40 |
jsr166 |
1.34 |
for (int i = n - 1; i >= 0; i -= 2) |
41 |
dl |
1.40 |
mustAdd(q, i); |
42 |
jsr166 |
1.27 |
for (int i = (n & 1); i < n; i += 2) |
43 |
dl |
1.40 |
mustAdd(q, i); |
44 |
|
|
mustAdd(q, -n); |
45 |
|
|
mustAdd(q, n); |
46 |
|
|
NavigableSet<Item> s = q.subSet(itemFor(0), true, itemFor(n), false); |
47 |
dl |
1.1 |
assertFalse(s.isEmpty()); |
48 |
dl |
1.40 |
mustEqual(n, s.size()); |
49 |
dl |
1.1 |
return s; |
50 |
|
|
} |
51 |
|
|
|
52 |
|
|
/** |
53 |
jsr166 |
1.23 |
* Returns a new set of first 5 ints. |
54 |
dl |
1.1 |
*/ |
55 |
dl |
1.40 |
private static NavigableSet<Item> set5() { |
56 |
jsr166 |
1.41 |
ConcurrentSkipListSet<Item> q = new ConcurrentSkipListSet<>(); |
57 |
dl |
1.1 |
assertTrue(q.isEmpty()); |
58 |
|
|
q.add(one); |
59 |
|
|
q.add(two); |
60 |
|
|
q.add(three); |
61 |
|
|
q.add(four); |
62 |
|
|
q.add(five); |
63 |
|
|
q.add(zero); |
64 |
|
|
q.add(seven); |
65 |
dl |
1.40 |
NavigableSet<Item> s = q.subSet(one, true, seven, false); |
66 |
|
|
mustEqual(5, s.size()); |
67 |
dl |
1.4 |
return s; |
68 |
|
|
} |
69 |
|
|
|
70 |
|
|
/** |
71 |
jsr166 |
1.23 |
* Returns a new set of first 5 negative ints. |
72 |
dl |
1.4 |
*/ |
73 |
dl |
1.40 |
private static NavigableSet<Item> dset5() { |
74 |
jsr166 |
1.41 |
ConcurrentSkipListSet<Item> q = new ConcurrentSkipListSet<>(); |
75 |
dl |
1.4 |
assertTrue(q.isEmpty()); |
76 |
dl |
1.40 |
q.add(minusOne); |
77 |
|
|
q.add(minusTwo); |
78 |
|
|
q.add(minusThree); |
79 |
|
|
q.add(minusFour); |
80 |
|
|
q.add(minusFive); |
81 |
|
|
NavigableSet<Item> s = q.descendingSet(); |
82 |
|
|
mustEqual(5, s.size()); |
83 |
dl |
1.1 |
return s; |
84 |
|
|
} |
85 |
|
|
|
86 |
dl |
1.40 |
private static NavigableSet<Item> set0() { |
87 |
jsr166 |
1.41 |
ConcurrentSkipListSet<Item> set = new ConcurrentSkipListSet<>(); |
88 |
dl |
1.1 |
assertTrue(set.isEmpty()); |
89 |
dl |
1.40 |
return set.tailSet(minusOne, true); |
90 |
dl |
1.4 |
} |
91 |
|
|
|
92 |
dl |
1.40 |
private static NavigableSet<Item> dset0() { |
93 |
jsr166 |
1.41 |
ConcurrentSkipListSet<Item> set = new ConcurrentSkipListSet<>(); |
94 |
dl |
1.4 |
assertTrue(set.isEmpty()); |
95 |
|
|
return set; |
96 |
dl |
1.1 |
} |
97 |
jsr166 |
1.5 |
|
98 |
dl |
1.1 |
/** |
99 |
|
|
* A new set has unbounded capacity |
100 |
|
|
*/ |
101 |
|
|
public void testConstructor1() { |
102 |
dl |
1.40 |
mustEqual(0, set0().size()); |
103 |
dl |
1.1 |
} |
104 |
|
|
|
105 |
|
|
/** |
106 |
|
|
* isEmpty is true before add, false after |
107 |
|
|
*/ |
108 |
|
|
public void testEmpty() { |
109 |
dl |
1.40 |
NavigableSet<Item> q = set0(); |
110 |
dl |
1.1 |
assertTrue(q.isEmpty()); |
111 |
dl |
1.40 |
mustAdd(q, one); |
112 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
113 |
dl |
1.40 |
mustAdd(q, two); |
114 |
dl |
1.1 |
q.pollFirst(); |
115 |
|
|
q.pollFirst(); |
116 |
|
|
assertTrue(q.isEmpty()); |
117 |
|
|
} |
118 |
|
|
|
119 |
|
|
/** |
120 |
|
|
* size changes when elements added and removed |
121 |
|
|
*/ |
122 |
|
|
public void testSize() { |
123 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
124 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
125 |
dl |
1.40 |
mustEqual(SIZE - i, q.size()); |
126 |
dl |
1.1 |
q.pollFirst(); |
127 |
|
|
} |
128 |
|
|
for (int i = 0; i < SIZE; ++i) { |
129 |
dl |
1.40 |
mustEqual(i, q.size()); |
130 |
|
|
mustAdd(q, i); |
131 |
dl |
1.1 |
} |
132 |
|
|
} |
133 |
|
|
|
134 |
|
|
/** |
135 |
|
|
* add(null) throws NPE |
136 |
|
|
*/ |
137 |
|
|
public void testAddNull() { |
138 |
dl |
1.40 |
NavigableSet<Item> q = set0(); |
139 |
jsr166 |
1.8 |
try { |
140 |
dl |
1.1 |
q.add(null); |
141 |
|
|
shouldThrow(); |
142 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
143 |
dl |
1.1 |
} |
144 |
|
|
|
145 |
|
|
/** |
146 |
|
|
* Add of comparable element succeeds |
147 |
|
|
*/ |
148 |
|
|
public void testAdd() { |
149 |
dl |
1.40 |
NavigableSet<Item> q = set0(); |
150 |
dl |
1.1 |
assertTrue(q.add(six)); |
151 |
|
|
} |
152 |
|
|
|
153 |
|
|
/** |
154 |
|
|
* Add of duplicate element fails |
155 |
|
|
*/ |
156 |
|
|
public void testAddDup() { |
157 |
dl |
1.40 |
NavigableSet<Item> q = set0(); |
158 |
dl |
1.1 |
assertTrue(q.add(six)); |
159 |
|
|
assertFalse(q.add(six)); |
160 |
|
|
} |
161 |
|
|
|
162 |
|
|
/** |
163 |
|
|
* Add of non-Comparable throws CCE |
164 |
|
|
*/ |
165 |
|
|
public void testAddNonComparable() { |
166 |
jsr166 |
1.41 |
ConcurrentSkipListSet<Object> src = new ConcurrentSkipListSet<>(); |
167 |
dl |
1.40 |
NavigableSet<Object> q = src.tailSet(minusOne, true); |
168 |
dl |
1.1 |
try { |
169 |
|
|
q.add(new Object()); |
170 |
|
|
q.add(new Object()); |
171 |
|
|
shouldThrow(); |
172 |
jsr166 |
1.9 |
} catch (ClassCastException success) {} |
173 |
dl |
1.1 |
} |
174 |
|
|
|
175 |
|
|
/** |
176 |
|
|
* addAll(null) throws NPE |
177 |
|
|
*/ |
178 |
|
|
public void testAddAll1() { |
179 |
dl |
1.40 |
NavigableSet<Item> q = set0(); |
180 |
dl |
1.1 |
try { |
181 |
|
|
q.addAll(null); |
182 |
|
|
shouldThrow(); |
183 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
184 |
dl |
1.1 |
} |
185 |
jsr166 |
1.14 |
|
186 |
dl |
1.1 |
/** |
187 |
|
|
* addAll of a collection with null elements throws NPE |
188 |
|
|
*/ |
189 |
|
|
public void testAddAll2() { |
190 |
dl |
1.40 |
NavigableSet<Item> q = set0(); |
191 |
|
|
Item[] items = new Item[SIZE]; |
192 |
dl |
1.1 |
try { |
193 |
dl |
1.40 |
q.addAll(Arrays.asList(items)); |
194 |
dl |
1.1 |
shouldThrow(); |
195 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
196 |
dl |
1.1 |
} |
197 |
jsr166 |
1.14 |
|
198 |
dl |
1.1 |
/** |
199 |
|
|
* addAll of a collection with any null elements throws NPE after |
200 |
|
|
* possibly adding some elements |
201 |
|
|
*/ |
202 |
|
|
public void testAddAll3() { |
203 |
dl |
1.40 |
NavigableSet<Item> q = set0(); |
204 |
|
|
Item[] items = new Item[2]; items[0] = zero; |
205 |
dl |
1.1 |
try { |
206 |
dl |
1.40 |
q.addAll(Arrays.asList(items)); |
207 |
dl |
1.1 |
shouldThrow(); |
208 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
209 |
dl |
1.1 |
} |
210 |
|
|
|
211 |
|
|
/** |
212 |
|
|
* Set contains all elements of successful addAll |
213 |
|
|
*/ |
214 |
|
|
public void testAddAll5() { |
215 |
dl |
1.40 |
Item[] empty = new Item[0]; |
216 |
|
|
Item[] items = new Item[SIZE]; |
217 |
jsr166 |
1.10 |
for (int i = 0; i < SIZE; ++i) |
218 |
dl |
1.40 |
items[i] = itemFor(SIZE - 1 - i); |
219 |
|
|
NavigableSet<Item> q = set0(); |
220 |
jsr166 |
1.10 |
assertFalse(q.addAll(Arrays.asList(empty))); |
221 |
dl |
1.40 |
assertTrue(q.addAll(Arrays.asList(items))); |
222 |
jsr166 |
1.10 |
for (int i = 0; i < SIZE; ++i) |
223 |
dl |
1.40 |
mustEqual(i, q.pollFirst()); |
224 |
dl |
1.1 |
} |
225 |
|
|
|
226 |
|
|
/** |
227 |
|
|
* poll succeeds unless empty |
228 |
|
|
*/ |
229 |
|
|
public void testPoll() { |
230 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
231 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
232 |
dl |
1.40 |
mustEqual(i, q.pollFirst()); |
233 |
dl |
1.1 |
} |
234 |
jsr166 |
1.8 |
assertNull(q.pollFirst()); |
235 |
dl |
1.1 |
} |
236 |
|
|
|
237 |
|
|
/** |
238 |
|
|
* remove(x) removes x and returns true if present |
239 |
|
|
*/ |
240 |
|
|
public void testRemoveElement() { |
241 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
242 |
jsr166 |
1.27 |
for (int i = 1; i < SIZE; i += 2) { |
243 |
dl |
1.40 |
mustContain(q, i); |
244 |
|
|
mustRemove(q, i); |
245 |
|
|
mustNotContain(q, i); |
246 |
|
|
mustContain(q, i - 1); |
247 |
dl |
1.1 |
} |
248 |
jsr166 |
1.27 |
for (int i = 0; i < SIZE; i += 2) { |
249 |
dl |
1.40 |
mustContain(q, i); |
250 |
|
|
mustRemove(q, i); |
251 |
|
|
mustNotContain(q, i); |
252 |
|
|
mustNotRemove(q, i + 1); |
253 |
|
|
mustNotContain(q, i + 1); |
254 |
dl |
1.1 |
} |
255 |
|
|
assertTrue(q.isEmpty()); |
256 |
|
|
} |
257 |
jsr166 |
1.5 |
|
258 |
dl |
1.1 |
/** |
259 |
|
|
* contains(x) reports true when elements added but not yet removed |
260 |
|
|
*/ |
261 |
|
|
public void testContains() { |
262 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
263 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
264 |
dl |
1.40 |
mustContain(q, i); |
265 |
dl |
1.1 |
q.pollFirst(); |
266 |
dl |
1.40 |
mustNotContain(q, i); |
267 |
dl |
1.1 |
} |
268 |
|
|
} |
269 |
|
|
|
270 |
|
|
/** |
271 |
|
|
* clear removes all elements |
272 |
|
|
*/ |
273 |
|
|
public void testClear() { |
274 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
275 |
dl |
1.1 |
q.clear(); |
276 |
|
|
assertTrue(q.isEmpty()); |
277 |
dl |
1.40 |
mustEqual(0, q.size()); |
278 |
|
|
mustAdd(q, one); |
279 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
280 |
|
|
q.clear(); |
281 |
|
|
assertTrue(q.isEmpty()); |
282 |
|
|
} |
283 |
|
|
|
284 |
|
|
/** |
285 |
|
|
* containsAll(c) is true when c contains a subset of elements |
286 |
|
|
*/ |
287 |
|
|
public void testContainsAll() { |
288 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
289 |
|
|
NavigableSet<Item> p = set0(); |
290 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
291 |
|
|
assertTrue(q.containsAll(p)); |
292 |
|
|
assertFalse(p.containsAll(q)); |
293 |
dl |
1.40 |
mustAdd(p, i); |
294 |
dl |
1.1 |
} |
295 |
|
|
assertTrue(p.containsAll(q)); |
296 |
|
|
} |
297 |
|
|
|
298 |
|
|
/** |
299 |
|
|
* retainAll(c) retains only those elements of c and reports true if changed |
300 |
|
|
*/ |
301 |
|
|
public void testRetainAll() { |
302 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
303 |
|
|
NavigableSet<Item> p = populatedSet(SIZE); |
304 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
305 |
|
|
boolean changed = q.retainAll(p); |
306 |
|
|
if (i == 0) |
307 |
|
|
assertFalse(changed); |
308 |
|
|
else |
309 |
|
|
assertTrue(changed); |
310 |
|
|
|
311 |
|
|
assertTrue(q.containsAll(p)); |
312 |
dl |
1.40 |
mustEqual(SIZE - i, q.size()); |
313 |
dl |
1.1 |
p.pollFirst(); |
314 |
|
|
} |
315 |
|
|
} |
316 |
|
|
|
317 |
|
|
/** |
318 |
|
|
* removeAll(c) removes only those elements of c and reports true if changed |
319 |
|
|
*/ |
320 |
|
|
public void testRemoveAll() { |
321 |
|
|
for (int i = 1; i < SIZE; ++i) { |
322 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
323 |
|
|
NavigableSet<Item> p = populatedSet(i); |
324 |
dl |
1.1 |
assertTrue(q.removeAll(p)); |
325 |
dl |
1.40 |
mustEqual(SIZE - i, q.size()); |
326 |
dl |
1.1 |
for (int j = 0; j < i; ++j) { |
327 |
dl |
1.40 |
mustNotContain(q, p.pollFirst()); |
328 |
dl |
1.1 |
} |
329 |
|
|
} |
330 |
|
|
} |
331 |
|
|
|
332 |
|
|
/** |
333 |
|
|
* lower returns preceding element |
334 |
|
|
*/ |
335 |
|
|
public void testLower() { |
336 |
dl |
1.40 |
NavigableSet<Item> q = set5(); |
337 |
dl |
1.1 |
Object e1 = q.lower(three); |
338 |
dl |
1.40 |
mustEqual(two, e1); |
339 |
dl |
1.1 |
|
340 |
|
|
Object e2 = q.lower(six); |
341 |
dl |
1.40 |
mustEqual(five, e2); |
342 |
dl |
1.1 |
|
343 |
|
|
Object e3 = q.lower(one); |
344 |
|
|
assertNull(e3); |
345 |
|
|
|
346 |
|
|
Object e4 = q.lower(zero); |
347 |
|
|
assertNull(e4); |
348 |
|
|
} |
349 |
|
|
|
350 |
|
|
/** |
351 |
|
|
* higher returns next element |
352 |
|
|
*/ |
353 |
|
|
public void testHigher() { |
354 |
dl |
1.40 |
NavigableSet<Item> q = set5(); |
355 |
dl |
1.1 |
Object e1 = q.higher(three); |
356 |
dl |
1.40 |
mustEqual(four, e1); |
357 |
dl |
1.1 |
|
358 |
|
|
Object e2 = q.higher(zero); |
359 |
dl |
1.40 |
mustEqual(one, e2); |
360 |
dl |
1.1 |
|
361 |
|
|
Object e3 = q.higher(five); |
362 |
|
|
assertNull(e3); |
363 |
|
|
|
364 |
|
|
Object e4 = q.higher(six); |
365 |
|
|
assertNull(e4); |
366 |
|
|
} |
367 |
|
|
|
368 |
|
|
/** |
369 |
|
|
* floor returns preceding element |
370 |
|
|
*/ |
371 |
|
|
public void testFloor() { |
372 |
dl |
1.40 |
NavigableSet<Item> q = set5(); |
373 |
dl |
1.1 |
Object e1 = q.floor(three); |
374 |
dl |
1.40 |
mustEqual(three, e1); |
375 |
dl |
1.1 |
|
376 |
|
|
Object e2 = q.floor(six); |
377 |
dl |
1.40 |
mustEqual(five, e2); |
378 |
dl |
1.1 |
|
379 |
|
|
Object e3 = q.floor(one); |
380 |
dl |
1.40 |
mustEqual(one, e3); |
381 |
dl |
1.1 |
|
382 |
|
|
Object e4 = q.floor(zero); |
383 |
|
|
assertNull(e4); |
384 |
|
|
} |
385 |
|
|
|
386 |
|
|
/** |
387 |
|
|
* ceiling returns next element |
388 |
|
|
*/ |
389 |
|
|
public void testCeiling() { |
390 |
dl |
1.40 |
NavigableSet<Item> q = set5(); |
391 |
dl |
1.1 |
Object e1 = q.ceiling(three); |
392 |
dl |
1.40 |
mustEqual(three, e1); |
393 |
dl |
1.1 |
|
394 |
|
|
Object e2 = q.ceiling(zero); |
395 |
dl |
1.40 |
mustEqual(one, e2); |
396 |
dl |
1.1 |
|
397 |
|
|
Object e3 = q.ceiling(five); |
398 |
dl |
1.40 |
mustEqual(five, e3); |
399 |
dl |
1.1 |
|
400 |
|
|
Object e4 = q.ceiling(six); |
401 |
|
|
assertNull(e4); |
402 |
|
|
} |
403 |
|
|
|
404 |
|
|
/** |
405 |
jsr166 |
1.15 |
* toArray contains all elements in sorted order |
406 |
dl |
1.1 |
*/ |
407 |
|
|
public void testToArray() { |
408 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
409 |
jsr166 |
1.39 |
Object[] a = q.toArray(); |
410 |
|
|
assertSame(Object[].class, a.getClass()); |
411 |
|
|
for (Object o : a) |
412 |
|
|
assertSame(o, q.pollFirst()); |
413 |
|
|
assertTrue(q.isEmpty()); |
414 |
dl |
1.1 |
} |
415 |
|
|
|
416 |
|
|
/** |
417 |
jsr166 |
1.15 |
* toArray(a) contains all elements in sorted order |
418 |
dl |
1.1 |
*/ |
419 |
|
|
public void testToArray2() { |
420 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
421 |
|
|
Item[] items = new Item[SIZE]; |
422 |
|
|
Item[] array = q.toArray(items); |
423 |
|
|
assertSame(items, array); |
424 |
|
|
for (Item o : items) |
425 |
jsr166 |
1.39 |
assertSame(o, q.pollFirst()); |
426 |
|
|
assertTrue(q.isEmpty()); |
427 |
dl |
1.1 |
} |
428 |
jsr166 |
1.5 |
|
429 |
dl |
1.1 |
/** |
430 |
|
|
* iterator iterates through all elements |
431 |
|
|
*/ |
432 |
|
|
public void testIterator() { |
433 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
434 |
|
|
Iterator<? extends Item> it = q.iterator(); |
435 |
jsr166 |
1.29 |
int i; |
436 |
|
|
for (i = 0; it.hasNext(); i++) |
437 |
dl |
1.1 |
assertTrue(q.contains(it.next())); |
438 |
dl |
1.40 |
mustEqual(i, SIZE); |
439 |
jsr166 |
1.29 |
assertIteratorExhausted(it); |
440 |
dl |
1.1 |
} |
441 |
|
|
|
442 |
|
|
/** |
443 |
|
|
* iterator of empty set has no elements |
444 |
|
|
*/ |
445 |
|
|
public void testEmptyIterator() { |
446 |
jsr166 |
1.29 |
assertIteratorExhausted(set0().iterator()); |
447 |
dl |
1.1 |
} |
448 |
|
|
|
449 |
|
|
/** |
450 |
|
|
* iterator.remove removes current element |
451 |
|
|
*/ |
452 |
jsr166 |
1.13 |
public void testIteratorRemove() { |
453 |
dl |
1.40 |
final NavigableSet<Item> q = set0(); |
454 |
|
|
mustAdd(q, two); |
455 |
|
|
mustAdd(q, one); |
456 |
|
|
mustAdd(q, three); |
457 |
|
|
Iterator<? extends Item> it = q.iterator(); |
458 |
dl |
1.1 |
it.next(); |
459 |
|
|
it.remove(); |
460 |
|
|
|
461 |
|
|
it = q.iterator(); |
462 |
dl |
1.40 |
mustEqual(it.next(), two); |
463 |
|
|
mustEqual(it.next(), three); |
464 |
dl |
1.1 |
assertFalse(it.hasNext()); |
465 |
|
|
} |
466 |
|
|
|
467 |
|
|
/** |
468 |
|
|
* toString contains toStrings of elements |
469 |
|
|
*/ |
470 |
|
|
public void testToString() { |
471 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
472 |
dl |
1.1 |
String s = q.toString(); |
473 |
|
|
for (int i = 0; i < SIZE; ++i) { |
474 |
jsr166 |
1.19 |
assertTrue(s.contains(String.valueOf(i))); |
475 |
dl |
1.1 |
} |
476 |
jsr166 |
1.5 |
} |
477 |
dl |
1.1 |
|
478 |
|
|
/** |
479 |
jsr166 |
1.37 |
* A deserialized/reserialized set equals original |
480 |
dl |
1.1 |
*/ |
481 |
jsr166 |
1.9 |
public void testSerialization() throws Exception { |
482 |
dl |
1.40 |
NavigableSet<Item> x = populatedSet(SIZE); |
483 |
|
|
NavigableSet<Item> y = serialClone(x); |
484 |
jsr166 |
1.20 |
|
485 |
jsr166 |
1.24 |
assertNotSame(y, x); |
486 |
dl |
1.40 |
mustEqual(x.size(), y.size()); |
487 |
|
|
mustEqual(x, y); |
488 |
|
|
mustEqual(y, x); |
489 |
jsr166 |
1.20 |
while (!x.isEmpty()) { |
490 |
|
|
assertFalse(y.isEmpty()); |
491 |
dl |
1.40 |
mustEqual(x.pollFirst(), y.pollFirst()); |
492 |
jsr166 |
1.20 |
} |
493 |
|
|
assertTrue(y.isEmpty()); |
494 |
dl |
1.1 |
} |
495 |
|
|
|
496 |
|
|
/** |
497 |
|
|
* subSet returns set with keys in requested range |
498 |
|
|
*/ |
499 |
|
|
public void testSubSetContents() { |
500 |
dl |
1.40 |
NavigableSet<Item> set = set5(); |
501 |
|
|
SortedSet<Item> sm = set.subSet(two, four); |
502 |
|
|
mustEqual(two, sm.first()); |
503 |
|
|
mustEqual(three, sm.last()); |
504 |
|
|
mustEqual(2, sm.size()); |
505 |
|
|
mustNotContain(sm, one); |
506 |
|
|
mustContain(sm, two); |
507 |
|
|
mustContain(sm, three); |
508 |
|
|
mustNotContain(sm, four); |
509 |
|
|
mustNotContain(sm, five); |
510 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
511 |
|
|
Item k = i.next(); |
512 |
|
|
mustEqual(two, k); |
513 |
|
|
k = i.next(); |
514 |
|
|
mustEqual(three, k); |
515 |
dl |
1.1 |
assertFalse(i.hasNext()); |
516 |
dl |
1.40 |
Iterator<? extends Item> j = sm.iterator(); |
517 |
dl |
1.1 |
j.next(); |
518 |
|
|
j.remove(); |
519 |
dl |
1.40 |
mustNotContain(set, two); |
520 |
|
|
mustEqual(4, set.size()); |
521 |
|
|
mustEqual(1, sm.size()); |
522 |
|
|
mustEqual(three, sm.first()); |
523 |
|
|
mustEqual(three, sm.last()); |
524 |
|
|
mustRemove(sm, three); |
525 |
dl |
1.1 |
assertTrue(sm.isEmpty()); |
526 |
dl |
1.40 |
mustEqual(3, set.size()); |
527 |
dl |
1.1 |
} |
528 |
|
|
|
529 |
|
|
public void testSubSetContents2() { |
530 |
dl |
1.40 |
NavigableSet<Item> set = set5(); |
531 |
|
|
SortedSet<Item> sm = set.subSet(two, three); |
532 |
|
|
mustEqual(1, sm.size()); |
533 |
|
|
mustEqual(two, sm.first()); |
534 |
|
|
mustEqual(two, sm.last()); |
535 |
|
|
mustNotContain(sm, one); |
536 |
|
|
mustContain(sm, two); |
537 |
|
|
mustNotContain(sm, three); |
538 |
|
|
mustNotContain(sm, four); |
539 |
|
|
mustNotContain(sm, five); |
540 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
541 |
|
|
Item k = i.next(); |
542 |
|
|
mustEqual(two, k); |
543 |
dl |
1.1 |
assertFalse(i.hasNext()); |
544 |
dl |
1.40 |
Iterator<? extends Item> j = sm.iterator(); |
545 |
dl |
1.1 |
j.next(); |
546 |
|
|
j.remove(); |
547 |
dl |
1.40 |
mustNotContain(set, two); |
548 |
|
|
mustEqual(4, set.size()); |
549 |
|
|
mustEqual(0, sm.size()); |
550 |
dl |
1.1 |
assertTrue(sm.isEmpty()); |
551 |
|
|
assertFalse(sm.remove(three)); |
552 |
dl |
1.40 |
mustEqual(4, set.size()); |
553 |
dl |
1.1 |
} |
554 |
|
|
|
555 |
|
|
/** |
556 |
|
|
* headSet returns set with keys in requested range |
557 |
|
|
*/ |
558 |
|
|
public void testHeadSetContents() { |
559 |
dl |
1.40 |
NavigableSet<Item> set = set5(); |
560 |
|
|
SortedSet<Item> sm = set.headSet(four); |
561 |
|
|
mustContain(sm, one); |
562 |
|
|
mustContain(sm, two); |
563 |
|
|
mustContain(sm, three); |
564 |
|
|
mustNotContain(sm, four); |
565 |
|
|
mustNotContain(sm, five); |
566 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
567 |
|
|
Item k = i.next(); |
568 |
|
|
mustEqual(one, k); |
569 |
|
|
k = i.next(); |
570 |
|
|
mustEqual(two, k); |
571 |
|
|
k = i.next(); |
572 |
|
|
mustEqual(three, k); |
573 |
dl |
1.1 |
assertFalse(i.hasNext()); |
574 |
|
|
sm.clear(); |
575 |
|
|
assertTrue(sm.isEmpty()); |
576 |
dl |
1.40 |
mustEqual(2, set.size()); |
577 |
|
|
mustEqual(four, set.first()); |
578 |
dl |
1.1 |
} |
579 |
|
|
|
580 |
|
|
/** |
581 |
|
|
* tailSet returns set with keys in requested range |
582 |
|
|
*/ |
583 |
|
|
public void testTailSetContents() { |
584 |
dl |
1.40 |
NavigableSet<Item> set = set5(); |
585 |
|
|
SortedSet<Item> sm = set.tailSet(two); |
586 |
|
|
mustNotContain(sm, one); |
587 |
|
|
mustContain(sm, two); |
588 |
|
|
mustContain(sm, three); |
589 |
|
|
mustContain(sm, four); |
590 |
|
|
mustContain(sm, five); |
591 |
dl |
1.1 |
assertFalse(sm.contains(one)); |
592 |
|
|
assertTrue(sm.contains(two)); |
593 |
|
|
assertTrue(sm.contains(three)); |
594 |
|
|
assertTrue(sm.contains(four)); |
595 |
|
|
assertTrue(sm.contains(five)); |
596 |
dl |
1.40 |
Iterator<? extends Item> i = sm.iterator(); |
597 |
|
|
Item k = i.next(); |
598 |
|
|
mustEqual(two, k); |
599 |
|
|
k = i.next(); |
600 |
|
|
mustEqual(three, k); |
601 |
|
|
k = i.next(); |
602 |
|
|
mustEqual(four, k); |
603 |
|
|
k = i.next(); |
604 |
|
|
mustEqual(five, k); |
605 |
dl |
1.1 |
assertFalse(i.hasNext()); |
606 |
|
|
|
607 |
dl |
1.40 |
SortedSet<Item> ssm = sm.tailSet(four); |
608 |
|
|
mustEqual(four, ssm.first()); |
609 |
|
|
mustEqual(five, ssm.last()); |
610 |
|
|
mustRemove(ssm, four); |
611 |
|
|
mustEqual(1, ssm.size()); |
612 |
|
|
mustEqual(3, sm.size()); |
613 |
|
|
mustEqual(4, set.size()); |
614 |
dl |
1.1 |
} |
615 |
|
|
|
616 |
dl |
1.4 |
/** |
617 |
|
|
* size changes when elements added and removed |
618 |
|
|
*/ |
619 |
|
|
public void testDescendingSize() { |
620 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
621 |
dl |
1.4 |
for (int i = 0; i < SIZE; ++i) { |
622 |
dl |
1.40 |
mustEqual(SIZE - i, q.size()); |
623 |
dl |
1.4 |
q.pollFirst(); |
624 |
|
|
} |
625 |
|
|
for (int i = 0; i < SIZE; ++i) { |
626 |
dl |
1.40 |
mustEqual(i, q.size()); |
627 |
|
|
mustAdd(q, i); |
628 |
dl |
1.4 |
} |
629 |
|
|
} |
630 |
|
|
|
631 |
|
|
/** |
632 |
|
|
* add(null) throws NPE |
633 |
|
|
*/ |
634 |
|
|
public void testDescendingAddNull() { |
635 |
dl |
1.40 |
NavigableSet<Item> q = dset0(); |
636 |
jsr166 |
1.8 |
try { |
637 |
dl |
1.4 |
q.add(null); |
638 |
|
|
shouldThrow(); |
639 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
640 |
dl |
1.4 |
} |
641 |
|
|
|
642 |
|
|
/** |
643 |
|
|
* Add of comparable element succeeds |
644 |
|
|
*/ |
645 |
|
|
public void testDescendingAdd() { |
646 |
dl |
1.40 |
NavigableSet<Item> q = dset0(); |
647 |
|
|
assertTrue(q.add(minusSix)); |
648 |
dl |
1.4 |
} |
649 |
|
|
|
650 |
|
|
/** |
651 |
|
|
* Add of duplicate element fails |
652 |
|
|
*/ |
653 |
|
|
public void testDescendingAddDup() { |
654 |
dl |
1.40 |
NavigableSet<Item> q = dset0(); |
655 |
|
|
assertTrue(q.add(minusSix)); |
656 |
|
|
assertFalse(q.add(minusSix)); |
657 |
dl |
1.4 |
} |
658 |
|
|
|
659 |
|
|
/** |
660 |
|
|
* Add of non-Comparable throws CCE |
661 |
|
|
*/ |
662 |
|
|
public void testDescendingAddNonComparable() { |
663 |
jsr166 |
1.41 |
NavigableSet<Object> q = new ConcurrentSkipListSet<>(); |
664 |
dl |
1.4 |
try { |
665 |
|
|
q.add(new Object()); |
666 |
|
|
q.add(new Object()); |
667 |
|
|
shouldThrow(); |
668 |
jsr166 |
1.9 |
} catch (ClassCastException success) {} |
669 |
dl |
1.4 |
} |
670 |
|
|
|
671 |
|
|
/** |
672 |
|
|
* addAll(null) throws NPE |
673 |
|
|
*/ |
674 |
|
|
public void testDescendingAddAll1() { |
675 |
dl |
1.40 |
NavigableSet<Item> q = dset0(); |
676 |
dl |
1.4 |
try { |
677 |
|
|
q.addAll(null); |
678 |
|
|
shouldThrow(); |
679 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
680 |
dl |
1.4 |
} |
681 |
jsr166 |
1.14 |
|
682 |
dl |
1.4 |
/** |
683 |
|
|
* addAll of a collection with null elements throws NPE |
684 |
|
|
*/ |
685 |
|
|
public void testDescendingAddAll2() { |
686 |
dl |
1.40 |
NavigableSet<Item> q = dset0(); |
687 |
|
|
Item[] items = new Item[1]; |
688 |
dl |
1.4 |
try { |
689 |
dl |
1.40 |
q.addAll(Arrays.asList(items)); |
690 |
dl |
1.4 |
shouldThrow(); |
691 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
692 |
dl |
1.4 |
} |
693 |
jsr166 |
1.14 |
|
694 |
dl |
1.4 |
/** |
695 |
|
|
* addAll of a collection with any null elements throws NPE after |
696 |
|
|
* possibly adding some elements |
697 |
|
|
*/ |
698 |
|
|
public void testDescendingAddAll3() { |
699 |
dl |
1.40 |
NavigableSet<Item> q = dset0(); |
700 |
|
|
Item[] items = new Item[2]; items[0] = zero; |
701 |
dl |
1.4 |
try { |
702 |
dl |
1.40 |
q.addAll(Arrays.asList(items)); |
703 |
dl |
1.4 |
shouldThrow(); |
704 |
jsr166 |
1.9 |
} catch (NullPointerException success) {} |
705 |
dl |
1.4 |
} |
706 |
|
|
|
707 |
|
|
/** |
708 |
|
|
* Set contains all elements of successful addAll |
709 |
|
|
*/ |
710 |
|
|
public void testDescendingAddAll5() { |
711 |
dl |
1.40 |
Item[] empty = new Item[0]; |
712 |
|
|
Item[] items = new Item[SIZE]; |
713 |
jsr166 |
1.10 |
for (int i = 0; i < SIZE; ++i) |
714 |
dl |
1.40 |
items[i] = itemFor(SIZE - 1 - i); |
715 |
|
|
NavigableSet<Item> q = dset0(); |
716 |
jsr166 |
1.10 |
assertFalse(q.addAll(Arrays.asList(empty))); |
717 |
dl |
1.40 |
assertTrue(q.addAll(Arrays.asList(items))); |
718 |
jsr166 |
1.10 |
for (int i = 0; i < SIZE; ++i) |
719 |
dl |
1.40 |
mustEqual(i, q.pollFirst()); |
720 |
dl |
1.4 |
} |
721 |
|
|
|
722 |
|
|
/** |
723 |
|
|
* poll succeeds unless empty |
724 |
|
|
*/ |
725 |
|
|
public void testDescendingPoll() { |
726 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
727 |
dl |
1.4 |
for (int i = 0; i < SIZE; ++i) { |
728 |
dl |
1.40 |
mustEqual(i, q.pollFirst()); |
729 |
dl |
1.4 |
} |
730 |
jsr166 |
1.8 |
assertNull(q.pollFirst()); |
731 |
dl |
1.4 |
} |
732 |
|
|
|
733 |
|
|
/** |
734 |
|
|
* remove(x) removes x and returns true if present |
735 |
|
|
*/ |
736 |
|
|
public void testDescendingRemoveElement() { |
737 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
738 |
jsr166 |
1.27 |
for (int i = 1; i < SIZE; i += 2) { |
739 |
dl |
1.40 |
mustRemove(q, i); |
740 |
dl |
1.4 |
} |
741 |
jsr166 |
1.27 |
for (int i = 0; i < SIZE; i += 2 ) { |
742 |
dl |
1.40 |
mustRemove(q, i); |
743 |
|
|
mustNotRemove(q, i + 1); |
744 |
dl |
1.4 |
} |
745 |
|
|
assertTrue(q.isEmpty()); |
746 |
|
|
} |
747 |
jsr166 |
1.5 |
|
748 |
dl |
1.4 |
/** |
749 |
|
|
* contains(x) reports true when elements added but not yet removed |
750 |
|
|
*/ |
751 |
|
|
public void testDescendingContains() { |
752 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
753 |
dl |
1.4 |
for (int i = 0; i < SIZE; ++i) { |
754 |
dl |
1.40 |
mustContain(q, i); |
755 |
dl |
1.4 |
q.pollFirst(); |
756 |
dl |
1.40 |
mustNotContain(q, i); |
757 |
dl |
1.4 |
} |
758 |
|
|
} |
759 |
|
|
|
760 |
|
|
/** |
761 |
|
|
* clear removes all elements |
762 |
|
|
*/ |
763 |
|
|
public void testDescendingClear() { |
764 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
765 |
dl |
1.4 |
q.clear(); |
766 |
|
|
assertTrue(q.isEmpty()); |
767 |
dl |
1.40 |
mustEqual(0, q.size()); |
768 |
|
|
mustAdd(q, one); |
769 |
dl |
1.4 |
assertFalse(q.isEmpty()); |
770 |
|
|
q.clear(); |
771 |
|
|
assertTrue(q.isEmpty()); |
772 |
|
|
} |
773 |
|
|
|
774 |
|
|
/** |
775 |
|
|
* containsAll(c) is true when c contains a subset of elements |
776 |
|
|
*/ |
777 |
|
|
public void testDescendingContainsAll() { |
778 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
779 |
|
|
NavigableSet<Item> p = dset0(); |
780 |
dl |
1.4 |
for (int i = 0; i < SIZE; ++i) { |
781 |
|
|
assertTrue(q.containsAll(p)); |
782 |
|
|
assertFalse(p.containsAll(q)); |
783 |
dl |
1.40 |
mustAdd(p, i); |
784 |
dl |
1.4 |
} |
785 |
|
|
assertTrue(p.containsAll(q)); |
786 |
|
|
} |
787 |
|
|
|
788 |
|
|
/** |
789 |
|
|
* retainAll(c) retains only those elements of c and reports true if changed |
790 |
|
|
*/ |
791 |
|
|
public void testDescendingRetainAll() { |
792 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
793 |
|
|
NavigableSet<Item> p = populatedSet(SIZE); |
794 |
dl |
1.4 |
for (int i = 0; i < SIZE; ++i) { |
795 |
|
|
boolean changed = q.retainAll(p); |
796 |
|
|
if (i == 0) |
797 |
|
|
assertFalse(changed); |
798 |
|
|
else |
799 |
|
|
assertTrue(changed); |
800 |
|
|
|
801 |
|
|
assertTrue(q.containsAll(p)); |
802 |
dl |
1.40 |
mustEqual(SIZE - i, q.size()); |
803 |
dl |
1.4 |
p.pollFirst(); |
804 |
|
|
} |
805 |
|
|
} |
806 |
|
|
|
807 |
|
|
/** |
808 |
|
|
* removeAll(c) removes only those elements of c and reports true if changed |
809 |
|
|
*/ |
810 |
|
|
public void testDescendingRemoveAll() { |
811 |
|
|
for (int i = 1; i < SIZE; ++i) { |
812 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
813 |
|
|
NavigableSet<Item> p = populatedSet(i); |
814 |
dl |
1.4 |
assertTrue(q.removeAll(p)); |
815 |
dl |
1.40 |
mustEqual(SIZE - i, q.size()); |
816 |
dl |
1.4 |
for (int j = 0; j < i; ++j) { |
817 |
dl |
1.40 |
mustNotContain(q, p.pollFirst()); |
818 |
dl |
1.4 |
} |
819 |
|
|
} |
820 |
|
|
} |
821 |
|
|
|
822 |
|
|
/** |
823 |
|
|
* lower returns preceding element |
824 |
|
|
*/ |
825 |
|
|
public void testDescendingLower() { |
826 |
dl |
1.40 |
NavigableSet<Item> q = dset5(); |
827 |
|
|
Object e1 = q.lower(minusThree); |
828 |
|
|
mustEqual(minusTwo, e1); |
829 |
dl |
1.4 |
|
830 |
dl |
1.40 |
Object e2 = q.lower(minusSix); |
831 |
|
|
mustEqual(minusFive, e2); |
832 |
dl |
1.4 |
|
833 |
dl |
1.40 |
Object e3 = q.lower(minusOne); |
834 |
dl |
1.4 |
assertNull(e3); |
835 |
|
|
|
836 |
|
|
Object e4 = q.lower(zero); |
837 |
|
|
assertNull(e4); |
838 |
|
|
} |
839 |
|
|
|
840 |
|
|
/** |
841 |
|
|
* higher returns next element |
842 |
|
|
*/ |
843 |
|
|
public void testDescendingHigher() { |
844 |
dl |
1.40 |
NavigableSet<Item> q = dset5(); |
845 |
|
|
Object e1 = q.higher(minusThree); |
846 |
|
|
mustEqual(minusFour, e1); |
847 |
dl |
1.4 |
|
848 |
|
|
Object e2 = q.higher(zero); |
849 |
dl |
1.40 |
mustEqual(minusOne, e2); |
850 |
dl |
1.4 |
|
851 |
dl |
1.40 |
Object e3 = q.higher(minusFive); |
852 |
dl |
1.4 |
assertNull(e3); |
853 |
|
|
|
854 |
dl |
1.40 |
Object e4 = q.higher(minusSix); |
855 |
dl |
1.4 |
assertNull(e4); |
856 |
|
|
} |
857 |
|
|
|
858 |
|
|
/** |
859 |
|
|
* floor returns preceding element |
860 |
|
|
*/ |
861 |
|
|
public void testDescendingFloor() { |
862 |
dl |
1.40 |
NavigableSet<Item> q = dset5(); |
863 |
|
|
Object e1 = q.floor(minusThree); |
864 |
|
|
mustEqual(minusThree, e1); |
865 |
dl |
1.4 |
|
866 |
dl |
1.40 |
Object e2 = q.floor(minusSix); |
867 |
|
|
mustEqual(minusFive, e2); |
868 |
dl |
1.4 |
|
869 |
dl |
1.40 |
Object e3 = q.floor(minusOne); |
870 |
|
|
mustEqual(minusOne, e3); |
871 |
dl |
1.4 |
|
872 |
|
|
Object e4 = q.floor(zero); |
873 |
|
|
assertNull(e4); |
874 |
|
|
} |
875 |
|
|
|
876 |
|
|
/** |
877 |
|
|
* ceiling returns next element |
878 |
|
|
*/ |
879 |
|
|
public void testDescendingCeiling() { |
880 |
dl |
1.40 |
NavigableSet<Item> q = dset5(); |
881 |
|
|
Object e1 = q.ceiling(minusThree); |
882 |
|
|
mustEqual(minusThree, e1); |
883 |
dl |
1.4 |
|
884 |
|
|
Object e2 = q.ceiling(zero); |
885 |
dl |
1.40 |
mustEqual(minusOne, e2); |
886 |
dl |
1.4 |
|
887 |
dl |
1.40 |
Object e3 = q.ceiling(minusFive); |
888 |
|
|
mustEqual(minusFive, e3); |
889 |
dl |
1.4 |
|
890 |
dl |
1.40 |
Object e4 = q.ceiling(minusSix); |
891 |
dl |
1.4 |
assertNull(e4); |
892 |
|
|
} |
893 |
|
|
|
894 |
|
|
/** |
895 |
|
|
* toArray contains all elements |
896 |
|
|
*/ |
897 |
|
|
public void testDescendingToArray() { |
898 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
899 |
jsr166 |
1.8 |
Object[] o = q.toArray(); |
900 |
dl |
1.4 |
Arrays.sort(o); |
901 |
jsr166 |
1.8 |
for (int i = 0; i < o.length; i++) |
902 |
dl |
1.40 |
mustEqual(o[i], q.pollFirst()); |
903 |
dl |
1.4 |
} |
904 |
|
|
|
905 |
|
|
/** |
906 |
|
|
* toArray(a) contains all elements |
907 |
|
|
*/ |
908 |
|
|
public void testDescendingToArray2() { |
909 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
910 |
|
|
Item[] items = new Item[SIZE]; |
911 |
|
|
assertSame(items, q.toArray(items)); |
912 |
|
|
Arrays.sort(items); |
913 |
|
|
for (int i = 0; i < items.length; i++) |
914 |
|
|
mustEqual(items[i], q.pollFirst()); |
915 |
dl |
1.4 |
} |
916 |
jsr166 |
1.5 |
|
917 |
dl |
1.4 |
/** |
918 |
|
|
* iterator iterates through all elements |
919 |
|
|
*/ |
920 |
|
|
public void testDescendingIterator() { |
921 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
922 |
dl |
1.4 |
int i = 0; |
923 |
dl |
1.40 |
Iterator<? extends Item> it = q.iterator(); |
924 |
jsr166 |
1.6 |
while (it.hasNext()) { |
925 |
dl |
1.40 |
mustContain(q, it.next()); |
926 |
dl |
1.4 |
++i; |
927 |
|
|
} |
928 |
dl |
1.40 |
mustEqual(i, SIZE); |
929 |
dl |
1.4 |
} |
930 |
|
|
|
931 |
|
|
/** |
932 |
|
|
* iterator of empty set has no elements |
933 |
|
|
*/ |
934 |
|
|
public void testDescendingEmptyIterator() { |
935 |
dl |
1.40 |
NavigableSet<Item> q = dset0(); |
936 |
dl |
1.4 |
int i = 0; |
937 |
dl |
1.40 |
Iterator<? extends Item> it = q.iterator(); |
938 |
jsr166 |
1.6 |
while (it.hasNext()) { |
939 |
dl |
1.40 |
mustContain(q, it.next()); |
940 |
dl |
1.4 |
++i; |
941 |
|
|
} |
942 |
dl |
1.40 |
mustEqual(0, i); |
943 |
dl |
1.4 |
} |
944 |
|
|
|
945 |
|
|
/** |
946 |
|
|
* iterator.remove removes current element |
947 |
|
|
*/ |
948 |
jsr166 |
1.13 |
public void testDescendingIteratorRemove() { |
949 |
dl |
1.40 |
final NavigableSet<Item> q = dset0(); |
950 |
|
|
q.add(two); |
951 |
|
|
q.add(one); |
952 |
|
|
q.add(three); |
953 |
dl |
1.4 |
|
954 |
dl |
1.40 |
Iterator<? extends Item> it = q.iterator(); |
955 |
dl |
1.4 |
it.next(); |
956 |
|
|
it.remove(); |
957 |
|
|
|
958 |
|
|
it = q.iterator(); |
959 |
dl |
1.40 |
mustEqual(it.next(), two); |
960 |
|
|
mustEqual(it.next(), three); |
961 |
dl |
1.4 |
assertFalse(it.hasNext()); |
962 |
|
|
} |
963 |
|
|
|
964 |
|
|
/** |
965 |
|
|
* toString contains toStrings of elements |
966 |
|
|
*/ |
967 |
|
|
public void testDescendingToString() { |
968 |
dl |
1.40 |
NavigableSet<Item> q = populatedSet(SIZE); |
969 |
dl |
1.4 |
String s = q.toString(); |
970 |
|
|
for (int i = 0; i < SIZE; ++i) { |
971 |
jsr166 |
1.19 |
assertTrue(s.contains(String.valueOf(i))); |
972 |
dl |
1.4 |
} |
973 |
jsr166 |
1.5 |
} |
974 |
dl |
1.4 |
|
975 |
|
|
/** |
976 |
jsr166 |
1.37 |
* A deserialized/reserialized set equals original |
977 |
dl |
1.4 |
*/ |
978 |
jsr166 |
1.9 |
public void testDescendingSerialization() throws Exception { |
979 |
dl |
1.40 |
NavigableSet<Item> x = dset5(); |
980 |
|
|
NavigableSet<Item> y = serialClone(x); |
981 |
jsr166 |
1.20 |
|
982 |
jsr166 |
1.24 |
assertNotSame(y, x); |
983 |
dl |
1.40 |
mustEqual(x.size(), y.size()); |
984 |
|
|
mustEqual(x, y); |
985 |
|
|
mustEqual(y, x); |
986 |
jsr166 |
1.20 |
while (!x.isEmpty()) { |
987 |
|
|
assertFalse(y.isEmpty()); |
988 |
dl |
1.40 |
mustEqual(x.pollFirst(), y.pollFirst()); |
989 |
jsr166 |
1.20 |
} |
990 |
|
|
assertTrue(y.isEmpty()); |
991 |
dl |
1.4 |
} |
992 |
|
|
|
993 |
|
|
/** |
994 |
|
|
* subSet returns set with keys in requested range |
995 |
|
|
*/ |
996 |
|
|
public void testDescendingSubSetContents() { |
997 |
dl |
1.40 |
NavigableSet<Item> set = dset5(); |
998 |
|
|
SortedSet<Item> sm = set.subSet(minusTwo, minusFour); |
999 |
|
|
mustEqual(minusTwo, sm.first()); |
1000 |
|
|
mustEqual(minusThree, sm.last()); |
1001 |
|
|
mustEqual(2, sm.size()); |
1002 |
|
|
mustNotContain(sm, minusOne); |
1003 |
|
|
mustContain(sm, minusTwo); |
1004 |
|
|
mustContain(sm, minusThree); |
1005 |
|
|
mustNotContain(sm, minusFour); |
1006 |
|
|
mustNotContain(sm, minusFive); |
1007 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
1008 |
|
|
Item k = i.next(); |
1009 |
|
|
mustEqual(minusTwo, k); |
1010 |
|
|
k = i.next(); |
1011 |
|
|
mustEqual(minusThree, k); |
1012 |
dl |
1.4 |
assertFalse(i.hasNext()); |
1013 |
dl |
1.40 |
Iterator<? extends Item> j = sm.iterator(); |
1014 |
dl |
1.4 |
j.next(); |
1015 |
|
|
j.remove(); |
1016 |
dl |
1.40 |
mustNotContain(set, minusTwo); |
1017 |
|
|
mustEqual(4, set.size()); |
1018 |
|
|
mustEqual(1, sm.size()); |
1019 |
|
|
mustEqual(minusThree, sm.first()); |
1020 |
|
|
mustEqual(minusThree, sm.last()); |
1021 |
|
|
mustRemove(sm, minusThree); |
1022 |
dl |
1.4 |
assertTrue(sm.isEmpty()); |
1023 |
dl |
1.40 |
mustEqual(3, set.size()); |
1024 |
dl |
1.4 |
} |
1025 |
|
|
|
1026 |
|
|
public void testDescendingSubSetContents2() { |
1027 |
dl |
1.40 |
NavigableSet<Item> set = dset5(); |
1028 |
|
|
SortedSet<Item> sm = set.subSet(minusTwo, minusThree); |
1029 |
|
|
mustEqual(1, sm.size()); |
1030 |
|
|
mustEqual(minusTwo, sm.first()); |
1031 |
|
|
mustEqual(minusTwo, sm.last()); |
1032 |
|
|
mustNotContain(sm, minusOne); |
1033 |
|
|
mustContain(sm, minusTwo); |
1034 |
|
|
mustNotContain(sm, minusThree); |
1035 |
|
|
mustNotContain(sm, minusFour); |
1036 |
|
|
mustNotContain(sm, minusFive); |
1037 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
1038 |
|
|
Item k = i.next(); |
1039 |
|
|
mustEqual(minusTwo, k); |
1040 |
dl |
1.4 |
assertFalse(i.hasNext()); |
1041 |
dl |
1.40 |
Iterator<? extends Item> j = sm.iterator(); |
1042 |
dl |
1.4 |
j.next(); |
1043 |
|
|
j.remove(); |
1044 |
dl |
1.40 |
mustNotContain(set, minusTwo); |
1045 |
|
|
mustEqual(4, set.size()); |
1046 |
|
|
mustEqual(0, sm.size()); |
1047 |
dl |
1.4 |
assertTrue(sm.isEmpty()); |
1048 |
dl |
1.40 |
mustNotRemove(sm, minusThree); |
1049 |
|
|
mustEqual(4, set.size()); |
1050 |
dl |
1.4 |
} |
1051 |
|
|
|
1052 |
|
|
/** |
1053 |
|
|
* headSet returns set with keys in requested range |
1054 |
|
|
*/ |
1055 |
|
|
public void testDescendingHeadSetContents() { |
1056 |
dl |
1.40 |
NavigableSet<Item> set = dset5(); |
1057 |
|
|
SortedSet<Item> sm = set.headSet(minusFour); |
1058 |
|
|
mustContain(sm, minusOne); |
1059 |
|
|
mustContain(sm, minusTwo); |
1060 |
|
|
mustContain(sm, minusThree); |
1061 |
|
|
mustNotContain(sm, minusFour); |
1062 |
|
|
mustNotContain(sm, minusFive); |
1063 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
1064 |
|
|
Item k = i.next(); |
1065 |
|
|
mustEqual(minusOne, k); |
1066 |
|
|
k = i.next(); |
1067 |
|
|
mustEqual(minusTwo, k); |
1068 |
|
|
k = i.next(); |
1069 |
|
|
mustEqual(minusThree, k); |
1070 |
dl |
1.4 |
assertFalse(i.hasNext()); |
1071 |
|
|
sm.clear(); |
1072 |
|
|
assertTrue(sm.isEmpty()); |
1073 |
dl |
1.40 |
mustEqual(2, set.size()); |
1074 |
|
|
mustEqual(minusFour, set.first()); |
1075 |
dl |
1.4 |
} |
1076 |
|
|
|
1077 |
|
|
/** |
1078 |
|
|
* tailSet returns set with keys in requested range |
1079 |
|
|
*/ |
1080 |
|
|
public void testDescendingTailSetContents() { |
1081 |
dl |
1.40 |
NavigableSet<Item> set = dset5(); |
1082 |
|
|
SortedSet<Item> sm = set.tailSet(minusTwo); |
1083 |
|
|
mustNotContain(sm, minusOne); |
1084 |
|
|
mustContain(sm, minusTwo); |
1085 |
|
|
mustContain(sm, minusThree); |
1086 |
|
|
mustContain(sm, minusFour); |
1087 |
|
|
mustContain(sm, minusFive); |
1088 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
1089 |
|
|
Item k = i.next(); |
1090 |
|
|
mustEqual(minusTwo, k); |
1091 |
|
|
k = i.next(); |
1092 |
|
|
mustEqual(minusThree, k); |
1093 |
|
|
k = i.next(); |
1094 |
|
|
mustEqual(minusFour, k); |
1095 |
|
|
k = i.next(); |
1096 |
|
|
mustEqual(minusFive, k); |
1097 |
dl |
1.4 |
assertFalse(i.hasNext()); |
1098 |
|
|
|
1099 |
dl |
1.40 |
SortedSet<Item> ssm = sm.tailSet(minusFour); |
1100 |
|
|
mustEqual(minusFour, ssm.first()); |
1101 |
|
|
mustEqual(minusFive, ssm.last()); |
1102 |
|
|
mustRemove(ssm, minusFour); |
1103 |
|
|
mustEqual(1, ssm.size()); |
1104 |
|
|
mustEqual(3, sm.size()); |
1105 |
|
|
mustEqual(4, set.size()); |
1106 |
dl |
1.4 |
} |
1107 |
|
|
|
1108 |
dl |
1.1 |
} |