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 |
* http://creativecommons.org/licenses/publicdomain |
5 |
*/ |
6 |
|
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import junit.framework.*; |
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import java.util.*; |
9 |
import java.util.concurrent.*; |
10 |
import java.io.*; |
11 |
|
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public class ConcurrentSkipListSubSetTest extends JSR166TestCase { |
13 |
public static void main(String[] args) { |
14 |
junit.textui.TestRunner.run (suite()); |
15 |
} |
16 |
public static Test suite() { |
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return new TestSuite(ConcurrentSkipListSubSetTest.class); |
18 |
} |
19 |
|
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static class MyReverseComparator implements Comparator { |
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public int compare(Object x, Object y) { |
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int i = ((Integer)x).intValue(); |
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int j = ((Integer)y).intValue(); |
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if (i < j) return 1; |
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if (i > j) return -1; |
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return 0; |
27 |
} |
28 |
} |
29 |
|
30 |
/** |
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* Create a set of given size containing consecutive |
32 |
* Integers 0 ... n. |
33 |
*/ |
34 |
private NavigableSet populatedSet(int n) { |
35 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
36 |
assertTrue(q.isEmpty()); |
37 |
|
38 |
for (int i = n-1; i >= 0; i-=2) |
39 |
assertTrue(q.add(new Integer(i))); |
40 |
for (int i = (n & 1); i < n; i+=2) |
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assertTrue(q.add(new Integer(i))); |
42 |
assertTrue(q.add(new Integer(-n))); |
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assertTrue(q.add(new Integer(n))); |
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NavigableSet s = q.subSet(new Integer(0), true, new Integer(n), false); |
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assertFalse(s.isEmpty()); |
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assertEquals(n, s.size()); |
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return s; |
48 |
} |
49 |
|
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/** |
51 |
* Create set of first 5 ints |
52 |
*/ |
53 |
private NavigableSet set5() { |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
55 |
assertTrue(q.isEmpty()); |
56 |
q.add(one); |
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q.add(two); |
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q.add(three); |
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q.add(four); |
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q.add(five); |
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q.add(zero); |
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q.add(seven); |
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NavigableSet s = q.subSet(one, true, seven, false); |
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assertEquals(5, s.size()); |
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return s; |
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} |
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|
68 |
/** |
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* Create set of first 5 negative ints |
70 |
*/ |
71 |
private NavigableSet dset5() { |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
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assertTrue(q.isEmpty()); |
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q.add(m1); |
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q.add(m2); |
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q.add(m3); |
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q.add(m4); |
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q.add(m5); |
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NavigableSet s = q.descendingSet(); |
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assertEquals(5, s.size()); |
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return s; |
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} |
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|
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private static NavigableSet set0() { |
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ConcurrentSkipListSet set = new ConcurrentSkipListSet(); |
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assertTrue(set.isEmpty()); |
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return set.tailSet(m1, true); |
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} |
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|
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private static NavigableSet dset0() { |
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ConcurrentSkipListSet set = new ConcurrentSkipListSet(); |
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assertTrue(set.isEmpty()); |
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return set; |
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} |
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|
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/** |
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* A new set has unbounded capacity |
98 |
*/ |
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public void testConstructor1() { |
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assertEquals(0, set0().size()); |
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} |
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|
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|
104 |
/** |
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* isEmpty is true before add, false after |
106 |
*/ |
107 |
public void testEmpty() { |
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NavigableSet q = set0(); |
109 |
assertTrue(q.isEmpty()); |
110 |
q.add(new Integer(1)); |
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assertFalse(q.isEmpty()); |
112 |
q.add(new Integer(2)); |
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q.pollFirst(); |
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q.pollFirst(); |
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assertTrue(q.isEmpty()); |
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} |
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|
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/** |
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* size changes when elements added and removed |
120 |
*/ |
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public void testSize() { |
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NavigableSet q = populatedSet(SIZE); |
123 |
for (int i = 0; i < SIZE; ++i) { |
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assertEquals(SIZE-i, q.size()); |
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q.pollFirst(); |
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} |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(i, q.size()); |
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q.add(new Integer(i)); |
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} |
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} |
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|
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/** |
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* add(null) throws NPE |
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*/ |
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public void testAddNull() { |
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try { |
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NavigableSet q = set0(); |
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q.add(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { } |
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} |
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|
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/** |
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* Add of comparable element succeeds |
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*/ |
147 |
public void testAdd() { |
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NavigableSet q = set0(); |
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assertTrue(q.add(six)); |
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} |
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|
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/** |
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* Add of duplicate element fails |
154 |
*/ |
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public void testAddDup() { |
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NavigableSet q = set0(); |
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assertTrue(q.add(six)); |
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assertFalse(q.add(six)); |
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} |
160 |
|
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/** |
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* Add of non-Comparable throws CCE |
163 |
*/ |
164 |
public void testAddNonComparable() { |
165 |
try { |
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NavigableSet q = set0(); |
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q.add(new Object()); |
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q.add(new Object()); |
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q.add(new Object()); |
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shouldThrow(); |
171 |
} |
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catch (ClassCastException success) {} |
173 |
} |
174 |
|
175 |
|
176 |
/** |
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* addAll(null) throws NPE |
178 |
*/ |
179 |
public void testAddAll1() { |
180 |
try { |
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NavigableSet q = set0(); |
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q.addAll(null); |
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shouldThrow(); |
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} |
185 |
catch (NullPointerException success) {} |
186 |
} |
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/** |
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* addAll of a collection with null elements throws NPE |
189 |
*/ |
190 |
public void testAddAll2() { |
191 |
try { |
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NavigableSet q = set0(); |
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Integer[] ints = new Integer[SIZE]; |
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q.addAll(Arrays.asList(ints)); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) {} |
198 |
} |
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/** |
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* addAll of a collection with any null elements throws NPE after |
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* possibly adding some elements |
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*/ |
203 |
public void testAddAll3() { |
204 |
try { |
205 |
NavigableSet q = set0(); |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE-1; ++i) |
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ints[i] = new Integer(i+SIZE); |
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q.addAll(Arrays.asList(ints)); |
210 |
shouldThrow(); |
211 |
} |
212 |
catch (NullPointerException success) {} |
213 |
} |
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|
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/** |
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* Set contains all elements of successful addAll |
217 |
*/ |
218 |
public void testAddAll5() { |
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try { |
220 |
Integer[] empty = new Integer[0]; |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) |
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ints[i] = new Integer(SIZE-1- i); |
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NavigableSet q = set0(); |
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assertFalse(q.addAll(Arrays.asList(empty))); |
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assertTrue(q.addAll(Arrays.asList(ints))); |
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for (int i = 0; i < SIZE; ++i) |
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assertEquals(new Integer(i), q.pollFirst()); |
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} |
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finally {} |
231 |
} |
232 |
|
233 |
/** |
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* poll succeeds unless empty |
235 |
*/ |
236 |
public void testPoll() { |
237 |
NavigableSet q = populatedSet(SIZE); |
238 |
for (int i = 0; i < SIZE; ++i) { |
239 |
assertEquals(i, ((Integer)q.pollFirst()).intValue()); |
240 |
} |
241 |
assertNull(q.pollFirst()); |
242 |
} |
243 |
|
244 |
/** |
245 |
* remove(x) removes x and returns true if present |
246 |
*/ |
247 |
public void testRemoveElement() { |
248 |
NavigableSet q = populatedSet(SIZE); |
249 |
for (int i = 1; i < SIZE; i+=2) { |
250 |
assertTrue(q.remove(new Integer(i))); |
251 |
} |
252 |
for (int i = 0; i < SIZE; i+=2) { |
253 |
assertTrue(q.remove(new Integer(i))); |
254 |
assertFalse(q.remove(new Integer(i+1))); |
255 |
} |
256 |
assertTrue(q.isEmpty()); |
257 |
} |
258 |
|
259 |
/** |
260 |
* contains(x) reports true when elements added but not yet removed |
261 |
*/ |
262 |
public void testContains() { |
263 |
NavigableSet q = populatedSet(SIZE); |
264 |
for (int i = 0; i < SIZE; ++i) { |
265 |
assertTrue(q.contains(new Integer(i))); |
266 |
q.pollFirst(); |
267 |
assertFalse(q.contains(new Integer(i))); |
268 |
} |
269 |
} |
270 |
|
271 |
/** |
272 |
* clear removes all elements |
273 |
*/ |
274 |
public void testClear() { |
275 |
NavigableSet q = populatedSet(SIZE); |
276 |
q.clear(); |
277 |
assertTrue(q.isEmpty()); |
278 |
assertEquals(0, q.size()); |
279 |
q.add(new Integer(1)); |
280 |
assertFalse(q.isEmpty()); |
281 |
q.clear(); |
282 |
assertTrue(q.isEmpty()); |
283 |
} |
284 |
|
285 |
/** |
286 |
* containsAll(c) is true when c contains a subset of elements |
287 |
*/ |
288 |
public void testContainsAll() { |
289 |
NavigableSet q = populatedSet(SIZE); |
290 |
NavigableSet p = set0(); |
291 |
for (int i = 0; i < SIZE; ++i) { |
292 |
assertTrue(q.containsAll(p)); |
293 |
assertFalse(p.containsAll(q)); |
294 |
p.add(new Integer(i)); |
295 |
} |
296 |
assertTrue(p.containsAll(q)); |
297 |
} |
298 |
|
299 |
/** |
300 |
* retainAll(c) retains only those elements of c and reports true if changed |
301 |
*/ |
302 |
public void testRetainAll() { |
303 |
NavigableSet q = populatedSet(SIZE); |
304 |
NavigableSet p = populatedSet(SIZE); |
305 |
for (int i = 0; i < SIZE; ++i) { |
306 |
boolean changed = q.retainAll(p); |
307 |
if (i == 0) |
308 |
assertFalse(changed); |
309 |
else |
310 |
assertTrue(changed); |
311 |
|
312 |
assertTrue(q.containsAll(p)); |
313 |
assertEquals(SIZE-i, q.size()); |
314 |
p.pollFirst(); |
315 |
} |
316 |
} |
317 |
|
318 |
/** |
319 |
* removeAll(c) removes only those elements of c and reports true if changed |
320 |
*/ |
321 |
public void testRemoveAll() { |
322 |
for (int i = 1; i < SIZE; ++i) { |
323 |
NavigableSet q = populatedSet(SIZE); |
324 |
NavigableSet p = populatedSet(i); |
325 |
assertTrue(q.removeAll(p)); |
326 |
assertEquals(SIZE-i, q.size()); |
327 |
for (int j = 0; j < i; ++j) { |
328 |
Integer I = (Integer)(p.pollFirst()); |
329 |
assertFalse(q.contains(I)); |
330 |
} |
331 |
} |
332 |
} |
333 |
|
334 |
|
335 |
|
336 |
/** |
337 |
* lower returns preceding element |
338 |
*/ |
339 |
public void testLower() { |
340 |
NavigableSet q = set5(); |
341 |
Object e1 = q.lower(three); |
342 |
assertEquals(two, e1); |
343 |
|
344 |
Object e2 = q.lower(six); |
345 |
assertEquals(five, e2); |
346 |
|
347 |
Object e3 = q.lower(one); |
348 |
assertNull(e3); |
349 |
|
350 |
Object e4 = q.lower(zero); |
351 |
assertNull(e4); |
352 |
|
353 |
} |
354 |
|
355 |
/** |
356 |
* higher returns next element |
357 |
*/ |
358 |
public void testHigher() { |
359 |
NavigableSet q = set5(); |
360 |
Object e1 = q.higher(three); |
361 |
assertEquals(four, e1); |
362 |
|
363 |
Object e2 = q.higher(zero); |
364 |
assertEquals(one, e2); |
365 |
|
366 |
Object e3 = q.higher(five); |
367 |
assertNull(e3); |
368 |
|
369 |
Object e4 = q.higher(six); |
370 |
assertNull(e4); |
371 |
|
372 |
} |
373 |
|
374 |
/** |
375 |
* floor returns preceding element |
376 |
*/ |
377 |
public void testFloor() { |
378 |
NavigableSet q = set5(); |
379 |
Object e1 = q.floor(three); |
380 |
assertEquals(three, e1); |
381 |
|
382 |
Object e2 = q.floor(six); |
383 |
assertEquals(five, e2); |
384 |
|
385 |
Object e3 = q.floor(one); |
386 |
assertEquals(one, e3); |
387 |
|
388 |
Object e4 = q.floor(zero); |
389 |
assertNull(e4); |
390 |
|
391 |
} |
392 |
|
393 |
/** |
394 |
* ceiling returns next element |
395 |
*/ |
396 |
public void testCeiling() { |
397 |
NavigableSet q = set5(); |
398 |
Object e1 = q.ceiling(three); |
399 |
assertEquals(three, e1); |
400 |
|
401 |
Object e2 = q.ceiling(zero); |
402 |
assertEquals(one, e2); |
403 |
|
404 |
Object e3 = q.ceiling(five); |
405 |
assertEquals(five, e3); |
406 |
|
407 |
Object e4 = q.ceiling(six); |
408 |
assertNull(e4); |
409 |
|
410 |
} |
411 |
|
412 |
/** |
413 |
* toArray contains all elements |
414 |
*/ |
415 |
public void testToArray() { |
416 |
NavigableSet q = populatedSet(SIZE); |
417 |
Object[] o = q.toArray(); |
418 |
Arrays.sort(o); |
419 |
for (int i = 0; i < o.length; i++) |
420 |
assertEquals(o[i], q.pollFirst()); |
421 |
} |
422 |
|
423 |
/** |
424 |
* toArray(a) contains all elements |
425 |
*/ |
426 |
public void testToArray2() { |
427 |
NavigableSet q = populatedSet(SIZE); |
428 |
Integer[] ints = new Integer[SIZE]; |
429 |
ints = (Integer[])q.toArray(ints); |
430 |
Arrays.sort(ints); |
431 |
for (int i = 0; i < ints.length; i++) |
432 |
assertEquals(ints[i], q.pollFirst()); |
433 |
} |
434 |
|
435 |
/** |
436 |
* iterator iterates through all elements |
437 |
*/ |
438 |
public void testIterator() { |
439 |
NavigableSet q = populatedSet(SIZE); |
440 |
int i = 0; |
441 |
Iterator it = q.iterator(); |
442 |
while (it.hasNext()) { |
443 |
assertTrue(q.contains(it.next())); |
444 |
++i; |
445 |
} |
446 |
assertEquals(i, SIZE); |
447 |
} |
448 |
|
449 |
/** |
450 |
* iterator of empty set has no elements |
451 |
*/ |
452 |
public void testEmptyIterator() { |
453 |
NavigableSet q = set0(); |
454 |
int i = 0; |
455 |
Iterator it = q.iterator(); |
456 |
while (it.hasNext()) { |
457 |
assertTrue(q.contains(it.next())); |
458 |
++i; |
459 |
} |
460 |
assertEquals(i, 0); |
461 |
} |
462 |
|
463 |
/** |
464 |
* iterator.remove removes current element |
465 |
*/ |
466 |
public void testIteratorRemove () { |
467 |
final NavigableSet q = set0(); |
468 |
q.add(new Integer(2)); |
469 |
q.add(new Integer(1)); |
470 |
q.add(new Integer(3)); |
471 |
|
472 |
Iterator it = q.iterator(); |
473 |
it.next(); |
474 |
it.remove(); |
475 |
|
476 |
it = q.iterator(); |
477 |
assertEquals(it.next(), new Integer(2)); |
478 |
assertEquals(it.next(), new Integer(3)); |
479 |
assertFalse(it.hasNext()); |
480 |
} |
481 |
|
482 |
|
483 |
/** |
484 |
* toString contains toStrings of elements |
485 |
*/ |
486 |
public void testToString() { |
487 |
NavigableSet q = populatedSet(SIZE); |
488 |
String s = q.toString(); |
489 |
for (int i = 0; i < SIZE; ++i) { |
490 |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
491 |
} |
492 |
} |
493 |
|
494 |
/** |
495 |
* A deserialized serialized set has same elements |
496 |
*/ |
497 |
public void testSerialization() { |
498 |
NavigableSet q = populatedSet(SIZE); |
499 |
try { |
500 |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
501 |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
502 |
out.writeObject(q); |
503 |
out.close(); |
504 |
|
505 |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
506 |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
507 |
NavigableSet r = (NavigableSet)in.readObject(); |
508 |
assertEquals(q.size(), r.size()); |
509 |
while (!q.isEmpty()) |
510 |
assertEquals(q.pollFirst(), r.pollFirst()); |
511 |
} catch (Exception e) { |
512 |
e.printStackTrace(); |
513 |
unexpectedException(); |
514 |
} |
515 |
} |
516 |
|
517 |
/** |
518 |
* subSet returns set with keys in requested range |
519 |
*/ |
520 |
public void testSubSetContents() { |
521 |
NavigableSet set = set5(); |
522 |
SortedSet sm = set.subSet(two, four); |
523 |
assertEquals(two, sm.first()); |
524 |
assertEquals(three, sm.last()); |
525 |
assertEquals(2, sm.size()); |
526 |
assertFalse(sm.contains(one)); |
527 |
assertTrue(sm.contains(two)); |
528 |
assertTrue(sm.contains(three)); |
529 |
assertFalse(sm.contains(four)); |
530 |
assertFalse(sm.contains(five)); |
531 |
Iterator i = sm.iterator(); |
532 |
Object k; |
533 |
k = (Integer)(i.next()); |
534 |
assertEquals(two, k); |
535 |
k = (Integer)(i.next()); |
536 |
assertEquals(three, k); |
537 |
assertFalse(i.hasNext()); |
538 |
Iterator j = sm.iterator(); |
539 |
j.next(); |
540 |
j.remove(); |
541 |
assertFalse(set.contains(two)); |
542 |
assertEquals(4, set.size()); |
543 |
assertEquals(1, sm.size()); |
544 |
assertEquals(three, sm.first()); |
545 |
assertEquals(three, sm.last()); |
546 |
assertTrue(sm.remove(three)); |
547 |
assertTrue(sm.isEmpty()); |
548 |
assertEquals(3, set.size()); |
549 |
} |
550 |
|
551 |
public void testSubSetContents2() { |
552 |
NavigableSet set = set5(); |
553 |
SortedSet sm = set.subSet(two, three); |
554 |
assertEquals(1, sm.size()); |
555 |
assertEquals(two, sm.first()); |
556 |
assertEquals(two, sm.last()); |
557 |
assertFalse(sm.contains(one)); |
558 |
assertTrue(sm.contains(two)); |
559 |
assertFalse(sm.contains(three)); |
560 |
assertFalse(sm.contains(four)); |
561 |
assertFalse(sm.contains(five)); |
562 |
Iterator i = sm.iterator(); |
563 |
Object k; |
564 |
k = (Integer)(i.next()); |
565 |
assertEquals(two, k); |
566 |
assertFalse(i.hasNext()); |
567 |
Iterator j = sm.iterator(); |
568 |
j.next(); |
569 |
j.remove(); |
570 |
assertFalse(set.contains(two)); |
571 |
assertEquals(4, set.size()); |
572 |
assertEquals(0, sm.size()); |
573 |
assertTrue(sm.isEmpty()); |
574 |
assertFalse(sm.remove(three)); |
575 |
assertEquals(4, set.size()); |
576 |
} |
577 |
|
578 |
/** |
579 |
* headSet returns set with keys in requested range |
580 |
*/ |
581 |
public void testHeadSetContents() { |
582 |
NavigableSet set = set5(); |
583 |
SortedSet sm = set.headSet(four); |
584 |
assertTrue(sm.contains(one)); |
585 |
assertTrue(sm.contains(two)); |
586 |
assertTrue(sm.contains(three)); |
587 |
assertFalse(sm.contains(four)); |
588 |
assertFalse(sm.contains(five)); |
589 |
Iterator i = sm.iterator(); |
590 |
Object k; |
591 |
k = (Integer)(i.next()); |
592 |
assertEquals(one, k); |
593 |
k = (Integer)(i.next()); |
594 |
assertEquals(two, k); |
595 |
k = (Integer)(i.next()); |
596 |
assertEquals(three, k); |
597 |
assertFalse(i.hasNext()); |
598 |
sm.clear(); |
599 |
assertTrue(sm.isEmpty()); |
600 |
assertEquals(2, set.size()); |
601 |
assertEquals(four, set.first()); |
602 |
} |
603 |
|
604 |
/** |
605 |
* tailSet returns set with keys in requested range |
606 |
*/ |
607 |
public void testTailSetContents() { |
608 |
NavigableSet set = set5(); |
609 |
SortedSet sm = set.tailSet(two); |
610 |
assertFalse(sm.contains(one)); |
611 |
assertTrue(sm.contains(two)); |
612 |
assertTrue(sm.contains(three)); |
613 |
assertTrue(sm.contains(four)); |
614 |
assertTrue(sm.contains(five)); |
615 |
Iterator i = sm.iterator(); |
616 |
Object k; |
617 |
k = (Integer)(i.next()); |
618 |
assertEquals(two, k); |
619 |
k = (Integer)(i.next()); |
620 |
assertEquals(three, k); |
621 |
k = (Integer)(i.next()); |
622 |
assertEquals(four, k); |
623 |
k = (Integer)(i.next()); |
624 |
assertEquals(five, k); |
625 |
assertFalse(i.hasNext()); |
626 |
|
627 |
SortedSet ssm = sm.tailSet(four); |
628 |
assertEquals(four, ssm.first()); |
629 |
assertEquals(five, ssm.last()); |
630 |
assertTrue(ssm.remove(four)); |
631 |
assertEquals(1, ssm.size()); |
632 |
assertEquals(3, sm.size()); |
633 |
assertEquals(4, set.size()); |
634 |
} |
635 |
|
636 |
/** |
637 |
* size changes when elements added and removed |
638 |
*/ |
639 |
public void testDescendingSize() { |
640 |
NavigableSet q = populatedSet(SIZE); |
641 |
for (int i = 0; i < SIZE; ++i) { |
642 |
assertEquals(SIZE-i, q.size()); |
643 |
q.pollFirst(); |
644 |
} |
645 |
for (int i = 0; i < SIZE; ++i) { |
646 |
assertEquals(i, q.size()); |
647 |
q.add(new Integer(i)); |
648 |
} |
649 |
} |
650 |
|
651 |
/** |
652 |
* add(null) throws NPE |
653 |
*/ |
654 |
public void testDescendingAddNull() { |
655 |
try { |
656 |
NavigableSet q = dset0(); |
657 |
q.add(null); |
658 |
shouldThrow(); |
659 |
} catch (NullPointerException success) { } |
660 |
} |
661 |
|
662 |
/** |
663 |
* Add of comparable element succeeds |
664 |
*/ |
665 |
public void testDescendingAdd() { |
666 |
NavigableSet q = dset0(); |
667 |
assertTrue(q.add(m6)); |
668 |
} |
669 |
|
670 |
/** |
671 |
* Add of duplicate element fails |
672 |
*/ |
673 |
public void testDescendingAddDup() { |
674 |
NavigableSet q = dset0(); |
675 |
assertTrue(q.add(m6)); |
676 |
assertFalse(q.add(m6)); |
677 |
} |
678 |
|
679 |
/** |
680 |
* Add of non-Comparable throws CCE |
681 |
*/ |
682 |
public void testDescendingAddNonComparable() { |
683 |
try { |
684 |
NavigableSet q = dset0(); |
685 |
q.add(new Object()); |
686 |
q.add(new Object()); |
687 |
q.add(new Object()); |
688 |
shouldThrow(); |
689 |
} |
690 |
catch (ClassCastException success) {} |
691 |
} |
692 |
|
693 |
|
694 |
/** |
695 |
* addAll(null) throws NPE |
696 |
*/ |
697 |
public void testDescendingAddAll1() { |
698 |
try { |
699 |
NavigableSet q = dset0(); |
700 |
q.addAll(null); |
701 |
shouldThrow(); |
702 |
} |
703 |
catch (NullPointerException success) {} |
704 |
} |
705 |
/** |
706 |
* addAll of a collection with null elements throws NPE |
707 |
*/ |
708 |
public void testDescendingAddAll2() { |
709 |
try { |
710 |
NavigableSet q = dset0(); |
711 |
Integer[] ints = new Integer[SIZE]; |
712 |
q.addAll(Arrays.asList(ints)); |
713 |
shouldThrow(); |
714 |
} |
715 |
catch (NullPointerException success) {} |
716 |
} |
717 |
/** |
718 |
* addAll of a collection with any null elements throws NPE after |
719 |
* possibly adding some elements |
720 |
*/ |
721 |
public void testDescendingAddAll3() { |
722 |
try { |
723 |
NavigableSet q = dset0(); |
724 |
Integer[] ints = new Integer[SIZE]; |
725 |
for (int i = 0; i < SIZE-1; ++i) |
726 |
ints[i] = new Integer(i+SIZE); |
727 |
q.addAll(Arrays.asList(ints)); |
728 |
shouldThrow(); |
729 |
} |
730 |
catch (NullPointerException success) {} |
731 |
} |
732 |
|
733 |
/** |
734 |
* Set contains all elements of successful addAll |
735 |
*/ |
736 |
public void testDescendingAddAll5() { |
737 |
try { |
738 |
Integer[] empty = new Integer[0]; |
739 |
Integer[] ints = new Integer[SIZE]; |
740 |
for (int i = 0; i < SIZE; ++i) |
741 |
ints[i] = new Integer(SIZE-1- i); |
742 |
NavigableSet q = dset0(); |
743 |
assertFalse(q.addAll(Arrays.asList(empty))); |
744 |
assertTrue(q.addAll(Arrays.asList(ints))); |
745 |
for (int i = 0; i < SIZE; ++i) |
746 |
assertEquals(new Integer(i), q.pollFirst()); |
747 |
} |
748 |
finally {} |
749 |
} |
750 |
|
751 |
/** |
752 |
* poll succeeds unless empty |
753 |
*/ |
754 |
public void testDescendingPoll() { |
755 |
NavigableSet q = populatedSet(SIZE); |
756 |
for (int i = 0; i < SIZE; ++i) { |
757 |
assertEquals(i, ((Integer)q.pollFirst()).intValue()); |
758 |
} |
759 |
assertNull(q.pollFirst()); |
760 |
} |
761 |
|
762 |
/** |
763 |
* remove(x) removes x and returns true if present |
764 |
*/ |
765 |
public void testDescendingRemoveElement() { |
766 |
NavigableSet q = populatedSet(SIZE); |
767 |
for (int i = 1; i < SIZE; i+=2) { |
768 |
assertTrue(q.remove(new Integer(i))); |
769 |
} |
770 |
for (int i = 0; i < SIZE; i+=2) { |
771 |
assertTrue(q.remove(new Integer(i))); |
772 |
assertFalse(q.remove(new Integer(i+1))); |
773 |
} |
774 |
assertTrue(q.isEmpty()); |
775 |
} |
776 |
|
777 |
/** |
778 |
* contains(x) reports true when elements added but not yet removed |
779 |
*/ |
780 |
public void testDescendingContains() { |
781 |
NavigableSet q = populatedSet(SIZE); |
782 |
for (int i = 0; i < SIZE; ++i) { |
783 |
assertTrue(q.contains(new Integer(i))); |
784 |
q.pollFirst(); |
785 |
assertFalse(q.contains(new Integer(i))); |
786 |
} |
787 |
} |
788 |
|
789 |
/** |
790 |
* clear removes all elements |
791 |
*/ |
792 |
public void testDescendingClear() { |
793 |
NavigableSet q = populatedSet(SIZE); |
794 |
q.clear(); |
795 |
assertTrue(q.isEmpty()); |
796 |
assertEquals(0, q.size()); |
797 |
q.add(new Integer(1)); |
798 |
assertFalse(q.isEmpty()); |
799 |
q.clear(); |
800 |
assertTrue(q.isEmpty()); |
801 |
} |
802 |
|
803 |
/** |
804 |
* containsAll(c) is true when c contains a subset of elements |
805 |
*/ |
806 |
public void testDescendingContainsAll() { |
807 |
NavigableSet q = populatedSet(SIZE); |
808 |
NavigableSet p = dset0(); |
809 |
for (int i = 0; i < SIZE; ++i) { |
810 |
assertTrue(q.containsAll(p)); |
811 |
assertFalse(p.containsAll(q)); |
812 |
p.add(new Integer(i)); |
813 |
} |
814 |
assertTrue(p.containsAll(q)); |
815 |
} |
816 |
|
817 |
/** |
818 |
* retainAll(c) retains only those elements of c and reports true if changed |
819 |
*/ |
820 |
public void testDescendingRetainAll() { |
821 |
NavigableSet q = populatedSet(SIZE); |
822 |
NavigableSet p = populatedSet(SIZE); |
823 |
for (int i = 0; i < SIZE; ++i) { |
824 |
boolean changed = q.retainAll(p); |
825 |
if (i == 0) |
826 |
assertFalse(changed); |
827 |
else |
828 |
assertTrue(changed); |
829 |
|
830 |
assertTrue(q.containsAll(p)); |
831 |
assertEquals(SIZE-i, q.size()); |
832 |
p.pollFirst(); |
833 |
} |
834 |
} |
835 |
|
836 |
/** |
837 |
* removeAll(c) removes only those elements of c and reports true if changed |
838 |
*/ |
839 |
public void testDescendingRemoveAll() { |
840 |
for (int i = 1; i < SIZE; ++i) { |
841 |
NavigableSet q = populatedSet(SIZE); |
842 |
NavigableSet p = populatedSet(i); |
843 |
assertTrue(q.removeAll(p)); |
844 |
assertEquals(SIZE-i, q.size()); |
845 |
for (int j = 0; j < i; ++j) { |
846 |
Integer I = (Integer)(p.pollFirst()); |
847 |
assertFalse(q.contains(I)); |
848 |
} |
849 |
} |
850 |
} |
851 |
|
852 |
|
853 |
|
854 |
/** |
855 |
* lower returns preceding element |
856 |
*/ |
857 |
public void testDescendingLower() { |
858 |
NavigableSet q = dset5(); |
859 |
Object e1 = q.lower(m3); |
860 |
assertEquals(m2, e1); |
861 |
|
862 |
Object e2 = q.lower(m6); |
863 |
assertEquals(m5, e2); |
864 |
|
865 |
Object e3 = q.lower(m1); |
866 |
assertNull(e3); |
867 |
|
868 |
Object e4 = q.lower(zero); |
869 |
assertNull(e4); |
870 |
|
871 |
} |
872 |
|
873 |
/** |
874 |
* higher returns next element |
875 |
*/ |
876 |
public void testDescendingHigher() { |
877 |
NavigableSet q = dset5(); |
878 |
Object e1 = q.higher(m3); |
879 |
assertEquals(m4, e1); |
880 |
|
881 |
Object e2 = q.higher(zero); |
882 |
assertEquals(m1, e2); |
883 |
|
884 |
Object e3 = q.higher(m5); |
885 |
assertNull(e3); |
886 |
|
887 |
Object e4 = q.higher(m6); |
888 |
assertNull(e4); |
889 |
|
890 |
} |
891 |
|
892 |
/** |
893 |
* floor returns preceding element |
894 |
*/ |
895 |
public void testDescendingFloor() { |
896 |
NavigableSet q = dset5(); |
897 |
Object e1 = q.floor(m3); |
898 |
assertEquals(m3, e1); |
899 |
|
900 |
Object e2 = q.floor(m6); |
901 |
assertEquals(m5, e2); |
902 |
|
903 |
Object e3 = q.floor(m1); |
904 |
assertEquals(m1, e3); |
905 |
|
906 |
Object e4 = q.floor(zero); |
907 |
assertNull(e4); |
908 |
|
909 |
} |
910 |
|
911 |
/** |
912 |
* ceiling returns next element |
913 |
*/ |
914 |
public void testDescendingCeiling() { |
915 |
NavigableSet q = dset5(); |
916 |
Object e1 = q.ceiling(m3); |
917 |
assertEquals(m3, e1); |
918 |
|
919 |
Object e2 = q.ceiling(zero); |
920 |
assertEquals(m1, e2); |
921 |
|
922 |
Object e3 = q.ceiling(m5); |
923 |
assertEquals(m5, e3); |
924 |
|
925 |
Object e4 = q.ceiling(m6); |
926 |
assertNull(e4); |
927 |
|
928 |
} |
929 |
|
930 |
/** |
931 |
* toArray contains all elements |
932 |
*/ |
933 |
public void testDescendingToArray() { |
934 |
NavigableSet q = populatedSet(SIZE); |
935 |
Object[] o = q.toArray(); |
936 |
Arrays.sort(o); |
937 |
for (int i = 0; i < o.length; i++) |
938 |
assertEquals(o[i], q.pollFirst()); |
939 |
} |
940 |
|
941 |
/** |
942 |
* toArray(a) contains all elements |
943 |
*/ |
944 |
public void testDescendingToArray2() { |
945 |
NavigableSet q = populatedSet(SIZE); |
946 |
Integer[] ints = new Integer[SIZE]; |
947 |
ints = (Integer[])q.toArray(ints); |
948 |
Arrays.sort(ints); |
949 |
for (int i = 0; i < ints.length; i++) |
950 |
assertEquals(ints[i], q.pollFirst()); |
951 |
} |
952 |
|
953 |
/** |
954 |
* iterator iterates through all elements |
955 |
*/ |
956 |
public void testDescendingIterator() { |
957 |
NavigableSet q = populatedSet(SIZE); |
958 |
int i = 0; |
959 |
Iterator it = q.iterator(); |
960 |
while (it.hasNext()) { |
961 |
assertTrue(q.contains(it.next())); |
962 |
++i; |
963 |
} |
964 |
assertEquals(i, SIZE); |
965 |
} |
966 |
|
967 |
/** |
968 |
* iterator of empty set has no elements |
969 |
*/ |
970 |
public void testDescendingEmptyIterator() { |
971 |
NavigableSet q = dset0(); |
972 |
int i = 0; |
973 |
Iterator it = q.iterator(); |
974 |
while (it.hasNext()) { |
975 |
assertTrue(q.contains(it.next())); |
976 |
++i; |
977 |
} |
978 |
assertEquals(i, 0); |
979 |
} |
980 |
|
981 |
/** |
982 |
* iterator.remove removes current element |
983 |
*/ |
984 |
public void testDescendingIteratorRemove () { |
985 |
final NavigableSet q = dset0(); |
986 |
q.add(new Integer(2)); |
987 |
q.add(new Integer(1)); |
988 |
q.add(new Integer(3)); |
989 |
|
990 |
Iterator it = q.iterator(); |
991 |
it.next(); |
992 |
it.remove(); |
993 |
|
994 |
it = q.iterator(); |
995 |
assertEquals(it.next(), new Integer(2)); |
996 |
assertEquals(it.next(), new Integer(3)); |
997 |
assertFalse(it.hasNext()); |
998 |
} |
999 |
|
1000 |
|
1001 |
/** |
1002 |
* toString contains toStrings of elements |
1003 |
*/ |
1004 |
public void testDescendingToString() { |
1005 |
NavigableSet q = populatedSet(SIZE); |
1006 |
String s = q.toString(); |
1007 |
for (int i = 0; i < SIZE; ++i) { |
1008 |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
1009 |
} |
1010 |
} |
1011 |
|
1012 |
/** |
1013 |
* A deserialized serialized set has same elements |
1014 |
*/ |
1015 |
public void testDescendingSerialization() { |
1016 |
NavigableSet q = populatedSet(SIZE); |
1017 |
try { |
1018 |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
1019 |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
1020 |
out.writeObject(q); |
1021 |
out.close(); |
1022 |
|
1023 |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
1024 |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
1025 |
NavigableSet r = (NavigableSet)in.readObject(); |
1026 |
assertEquals(q.size(), r.size()); |
1027 |
while (!q.isEmpty()) |
1028 |
assertEquals(q.pollFirst(), r.pollFirst()); |
1029 |
} catch (Exception e) { |
1030 |
e.printStackTrace(); |
1031 |
unexpectedException(); |
1032 |
} |
1033 |
} |
1034 |
|
1035 |
/** |
1036 |
* subSet returns set with keys in requested range |
1037 |
*/ |
1038 |
public void testDescendingSubSetContents() { |
1039 |
NavigableSet set = dset5(); |
1040 |
SortedSet sm = set.subSet(m2, m4); |
1041 |
assertEquals(m2, sm.first()); |
1042 |
assertEquals(m3, sm.last()); |
1043 |
assertEquals(2, sm.size()); |
1044 |
assertFalse(sm.contains(m1)); |
1045 |
assertTrue(sm.contains(m2)); |
1046 |
assertTrue(sm.contains(m3)); |
1047 |
assertFalse(sm.contains(m4)); |
1048 |
assertFalse(sm.contains(m5)); |
1049 |
Iterator i = sm.iterator(); |
1050 |
Object k; |
1051 |
k = (Integer)(i.next()); |
1052 |
assertEquals(m2, k); |
1053 |
k = (Integer)(i.next()); |
1054 |
assertEquals(m3, k); |
1055 |
assertFalse(i.hasNext()); |
1056 |
Iterator j = sm.iterator(); |
1057 |
j.next(); |
1058 |
j.remove(); |
1059 |
assertFalse(set.contains(m2)); |
1060 |
assertEquals(4, set.size()); |
1061 |
assertEquals(1, sm.size()); |
1062 |
assertEquals(m3, sm.first()); |
1063 |
assertEquals(m3, sm.last()); |
1064 |
assertTrue(sm.remove(m3)); |
1065 |
assertTrue(sm.isEmpty()); |
1066 |
assertEquals(3, set.size()); |
1067 |
} |
1068 |
|
1069 |
public void testDescendingSubSetContents2() { |
1070 |
NavigableSet set = dset5(); |
1071 |
SortedSet sm = set.subSet(m2, m3); |
1072 |
assertEquals(1, sm.size()); |
1073 |
assertEquals(m2, sm.first()); |
1074 |
assertEquals(m2, sm.last()); |
1075 |
assertFalse(sm.contains(m1)); |
1076 |
assertTrue(sm.contains(m2)); |
1077 |
assertFalse(sm.contains(m3)); |
1078 |
assertFalse(sm.contains(m4)); |
1079 |
assertFalse(sm.contains(m5)); |
1080 |
Iterator i = sm.iterator(); |
1081 |
Object k; |
1082 |
k = (Integer)(i.next()); |
1083 |
assertEquals(m2, k); |
1084 |
assertFalse(i.hasNext()); |
1085 |
Iterator j = sm.iterator(); |
1086 |
j.next(); |
1087 |
j.remove(); |
1088 |
assertFalse(set.contains(m2)); |
1089 |
assertEquals(4, set.size()); |
1090 |
assertEquals(0, sm.size()); |
1091 |
assertTrue(sm.isEmpty()); |
1092 |
assertFalse(sm.remove(m3)); |
1093 |
assertEquals(4, set.size()); |
1094 |
} |
1095 |
|
1096 |
/** |
1097 |
* headSet returns set with keys in requested range |
1098 |
*/ |
1099 |
public void testDescendingHeadSetContents() { |
1100 |
NavigableSet set = dset5(); |
1101 |
SortedSet sm = set.headSet(m4); |
1102 |
assertTrue(sm.contains(m1)); |
1103 |
assertTrue(sm.contains(m2)); |
1104 |
assertTrue(sm.contains(m3)); |
1105 |
assertFalse(sm.contains(m4)); |
1106 |
assertFalse(sm.contains(m5)); |
1107 |
Iterator i = sm.iterator(); |
1108 |
Object k; |
1109 |
k = (Integer)(i.next()); |
1110 |
assertEquals(m1, k); |
1111 |
k = (Integer)(i.next()); |
1112 |
assertEquals(m2, k); |
1113 |
k = (Integer)(i.next()); |
1114 |
assertEquals(m3, k); |
1115 |
assertFalse(i.hasNext()); |
1116 |
sm.clear(); |
1117 |
assertTrue(sm.isEmpty()); |
1118 |
assertEquals(2, set.size()); |
1119 |
assertEquals(m4, set.first()); |
1120 |
} |
1121 |
|
1122 |
/** |
1123 |
* tailSet returns set with keys in requested range |
1124 |
*/ |
1125 |
public void testDescendingTailSetContents() { |
1126 |
NavigableSet set = dset5(); |
1127 |
SortedSet sm = set.tailSet(m2); |
1128 |
assertFalse(sm.contains(m1)); |
1129 |
assertTrue(sm.contains(m2)); |
1130 |
assertTrue(sm.contains(m3)); |
1131 |
assertTrue(sm.contains(m4)); |
1132 |
assertTrue(sm.contains(m5)); |
1133 |
Iterator i = sm.iterator(); |
1134 |
Object k; |
1135 |
k = (Integer)(i.next()); |
1136 |
assertEquals(m2, k); |
1137 |
k = (Integer)(i.next()); |
1138 |
assertEquals(m3, k); |
1139 |
k = (Integer)(i.next()); |
1140 |
assertEquals(m4, k); |
1141 |
k = (Integer)(i.next()); |
1142 |
assertEquals(m5, k); |
1143 |
assertFalse(i.hasNext()); |
1144 |
|
1145 |
SortedSet ssm = sm.tailSet(m4); |
1146 |
assertEquals(m4, ssm.first()); |
1147 |
assertEquals(m5, ssm.last()); |
1148 |
assertTrue(ssm.remove(m4)); |
1149 |
assertEquals(1, ssm.size()); |
1150 |
assertEquals(3, sm.size()); |
1151 |
assertEquals(4, set.size()); |
1152 |
} |
1153 |
|
1154 |
} |