| 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 |
|
| 7 |
import junit.framework.*; |
| 8 |
import java.util.*; |
| 9 |
import java.util.concurrent.*; |
| 10 |
import java.io.*; |
| 11 |
|
| 12 |
public class TreeSubMapTest extends JSR166TestCase { |
| 13 |
public static void main(String[] args) { |
| 14 |
junit.textui.TestRunner.run (suite()); |
| 15 |
} |
| 16 |
public static Test suite() { |
| 17 |
return new TestSuite(TreeSubMapTest.class); |
| 18 |
} |
| 19 |
|
| 20 |
/** |
| 21 |
* Create a map from Integers 1-5 to Strings "A"-"E". |
| 22 |
*/ |
| 23 |
private static NavigableMap map5() { |
| 24 |
TreeMap map = new TreeMap(); |
| 25 |
assertTrue(map.isEmpty()); |
| 26 |
map.put(zero, "Z"); |
| 27 |
map.put(one, "A"); |
| 28 |
map.put(five, "E"); |
| 29 |
map.put(three, "C"); |
| 30 |
map.put(two, "B"); |
| 31 |
map.put(four, "D"); |
| 32 |
map.put(seven, "F"); |
| 33 |
assertFalse(map.isEmpty()); |
| 34 |
assertEquals(7, map.size()); |
| 35 |
return map.navigableSubMap(one, seven); |
| 36 |
} |
| 37 |
|
| 38 |
private static NavigableMap map0() { |
| 39 |
TreeMap map = new TreeMap(); |
| 40 |
assertTrue(map.isEmpty()); |
| 41 |
return map.navigableTailMap(one); |
| 42 |
} |
| 43 |
|
| 44 |
/** |
| 45 |
* clear removes all pairs |
| 46 |
*/ |
| 47 |
public void testClear() { |
| 48 |
NavigableMap map = map5(); |
| 49 |
map.clear(); |
| 50 |
assertEquals(map.size(), 0); |
| 51 |
} |
| 52 |
|
| 53 |
|
| 54 |
/** |
| 55 |
* Maps with same contents are equal |
| 56 |
*/ |
| 57 |
public void testEquals() { |
| 58 |
NavigableMap map1 = map5(); |
| 59 |
NavigableMap map2 = map5(); |
| 60 |
assertEquals(map1, map2); |
| 61 |
assertEquals(map2, map1); |
| 62 |
map1.clear(); |
| 63 |
assertFalse(map1.equals(map2)); |
| 64 |
assertFalse(map2.equals(map1)); |
| 65 |
} |
| 66 |
|
| 67 |
/** |
| 68 |
* containsKey returns true for contained key |
| 69 |
*/ |
| 70 |
public void testContainsKey() { |
| 71 |
NavigableMap map = map5(); |
| 72 |
assertTrue(map.containsKey(one)); |
| 73 |
assertFalse(map.containsKey(zero)); |
| 74 |
} |
| 75 |
|
| 76 |
/** |
| 77 |
* containsValue returns true for held values |
| 78 |
*/ |
| 79 |
public void testContainsValue() { |
| 80 |
NavigableMap map = map5(); |
| 81 |
assertTrue(map.containsValue("A")); |
| 82 |
assertFalse(map.containsValue("Z")); |
| 83 |
} |
| 84 |
|
| 85 |
/** |
| 86 |
* get returns the correct element at the given key, |
| 87 |
* or null if not present |
| 88 |
*/ |
| 89 |
public void testGet() { |
| 90 |
NavigableMap map = map5(); |
| 91 |
assertEquals("A", (String)map.get(one)); |
| 92 |
NavigableMap empty = map0(); |
| 93 |
assertNull(empty.get(one)); |
| 94 |
} |
| 95 |
|
| 96 |
/** |
| 97 |
* isEmpty is true of empty map and false for non-empty |
| 98 |
*/ |
| 99 |
public void testIsEmpty() { |
| 100 |
NavigableMap empty = map0(); |
| 101 |
NavigableMap map = map5(); |
| 102 |
assertTrue(empty.isEmpty()); |
| 103 |
assertFalse(map.isEmpty()); |
| 104 |
} |
| 105 |
|
| 106 |
/** |
| 107 |
* firstKey returns first key |
| 108 |
*/ |
| 109 |
public void testFirstKey() { |
| 110 |
NavigableMap map = map5(); |
| 111 |
assertEquals(one, map.firstKey()); |
| 112 |
} |
| 113 |
|
| 114 |
/** |
| 115 |
* lastKey returns last key |
| 116 |
*/ |
| 117 |
public void testLastKey() { |
| 118 |
NavigableMap map = map5(); |
| 119 |
assertEquals(five, map.lastKey()); |
| 120 |
} |
| 121 |
|
| 122 |
|
| 123 |
/** |
| 124 |
* keySet returns a Set containing all the keys |
| 125 |
*/ |
| 126 |
public void testKeySet() { |
| 127 |
NavigableMap map = map5(); |
| 128 |
Set s = map.keySet(); |
| 129 |
assertEquals(5, s.size()); |
| 130 |
assertTrue(s.contains(one)); |
| 131 |
assertTrue(s.contains(two)); |
| 132 |
assertTrue(s.contains(three)); |
| 133 |
assertTrue(s.contains(four)); |
| 134 |
assertTrue(s.contains(five)); |
| 135 |
} |
| 136 |
|
| 137 |
/** |
| 138 |
* keySet is ordered |
| 139 |
*/ |
| 140 |
public void testKeySetOrder() { |
| 141 |
NavigableMap map = map5(); |
| 142 |
Set s = map.keySet(); |
| 143 |
Iterator i = s.iterator(); |
| 144 |
Integer last = (Integer)i.next(); |
| 145 |
assertEquals(last, one); |
| 146 |
while (i.hasNext()) { |
| 147 |
Integer k = (Integer)i.next(); |
| 148 |
assertTrue(last.compareTo(k) < 0); |
| 149 |
last = k; |
| 150 |
} |
| 151 |
} |
| 152 |
|
| 153 |
/** |
| 154 |
* values collection contains all values |
| 155 |
*/ |
| 156 |
public void testValues() { |
| 157 |
NavigableMap map = map5(); |
| 158 |
Collection s = map.values(); |
| 159 |
assertEquals(5, s.size()); |
| 160 |
assertTrue(s.contains("A")); |
| 161 |
assertTrue(s.contains("B")); |
| 162 |
assertTrue(s.contains("C")); |
| 163 |
assertTrue(s.contains("D")); |
| 164 |
assertTrue(s.contains("E")); |
| 165 |
} |
| 166 |
|
| 167 |
/** |
| 168 |
* entrySet contains all pairs |
| 169 |
*/ |
| 170 |
public void testEntrySet() { |
| 171 |
NavigableMap map = map5(); |
| 172 |
Set s = map.entrySet(); |
| 173 |
assertEquals(5, s.size()); |
| 174 |
Iterator it = s.iterator(); |
| 175 |
while (it.hasNext()) { |
| 176 |
Map.Entry e = (Map.Entry) it.next(); |
| 177 |
assertTrue( |
| 178 |
(e.getKey().equals(one) && e.getValue().equals("A")) || |
| 179 |
(e.getKey().equals(two) && e.getValue().equals("B")) || |
| 180 |
(e.getKey().equals(three) && e.getValue().equals("C")) || |
| 181 |
(e.getKey().equals(four) && e.getValue().equals("D")) || |
| 182 |
(e.getKey().equals(five) && e.getValue().equals("E"))); |
| 183 |
} |
| 184 |
} |
| 185 |
|
| 186 |
/** |
| 187 |
* putAll adds all key-value pairs from the given map |
| 188 |
*/ |
| 189 |
public void testPutAll() { |
| 190 |
NavigableMap empty = map0(); |
| 191 |
NavigableMap map = map5(); |
| 192 |
empty.putAll(map); |
| 193 |
assertEquals(5, empty.size()); |
| 194 |
assertTrue(empty.containsKey(one)); |
| 195 |
assertTrue(empty.containsKey(two)); |
| 196 |
assertTrue(empty.containsKey(three)); |
| 197 |
assertTrue(empty.containsKey(four)); |
| 198 |
assertTrue(empty.containsKey(five)); |
| 199 |
} |
| 200 |
|
| 201 |
/** |
| 202 |
* remove removes the correct key-value pair from the map |
| 203 |
*/ |
| 204 |
public void testRemove() { |
| 205 |
NavigableMap map = map5(); |
| 206 |
map.remove(five); |
| 207 |
assertEquals(4, map.size()); |
| 208 |
assertFalse(map.containsKey(five)); |
| 209 |
} |
| 210 |
|
| 211 |
/** |
| 212 |
* lowerEntry returns preceding entry. |
| 213 |
*/ |
| 214 |
public void testLowerEntry() { |
| 215 |
NavigableMap map = map5(); |
| 216 |
Map.Entry e1 = map.lowerEntry(three); |
| 217 |
assertEquals(two, e1.getKey()); |
| 218 |
|
| 219 |
Map.Entry e2 = map.lowerEntry(six); |
| 220 |
assertEquals(five, e2.getKey()); |
| 221 |
|
| 222 |
Map.Entry e3 = map.lowerEntry(one); |
| 223 |
assertNull(e3); |
| 224 |
|
| 225 |
Map.Entry e4 = map.lowerEntry(zero); |
| 226 |
assertNull(e4); |
| 227 |
|
| 228 |
} |
| 229 |
|
| 230 |
/** |
| 231 |
* higherEntry returns next entry. |
| 232 |
*/ |
| 233 |
public void testHigherEntry() { |
| 234 |
NavigableMap map = map5(); |
| 235 |
Map.Entry e1 = map.higherEntry(three); |
| 236 |
assertEquals(four, e1.getKey()); |
| 237 |
|
| 238 |
Map.Entry e2 = map.higherEntry(zero); |
| 239 |
assertEquals(one, e2.getKey()); |
| 240 |
|
| 241 |
Map.Entry e3 = map.higherEntry(five); |
| 242 |
assertNull(e3); |
| 243 |
|
| 244 |
Map.Entry e4 = map.higherEntry(six); |
| 245 |
assertNull(e4); |
| 246 |
|
| 247 |
} |
| 248 |
|
| 249 |
/** |
| 250 |
* floorEntry returns preceding entry. |
| 251 |
*/ |
| 252 |
public void testFloorEntry() { |
| 253 |
NavigableMap map = map5(); |
| 254 |
Map.Entry e1 = map.floorEntry(three); |
| 255 |
assertEquals(three, e1.getKey()); |
| 256 |
|
| 257 |
Map.Entry e2 = map.floorEntry(six); |
| 258 |
assertEquals(five, e2.getKey()); |
| 259 |
|
| 260 |
Map.Entry e3 = map.floorEntry(one); |
| 261 |
assertEquals(one, e3.getKey()); |
| 262 |
|
| 263 |
Map.Entry e4 = map.floorEntry(zero); |
| 264 |
assertNull(e4); |
| 265 |
|
| 266 |
} |
| 267 |
|
| 268 |
/** |
| 269 |
* ceilingEntry returns next entry. |
| 270 |
*/ |
| 271 |
public void testCeilingEntry() { |
| 272 |
NavigableMap map = map5(); |
| 273 |
Map.Entry e1 = map.ceilingEntry(three); |
| 274 |
assertEquals(three, e1.getKey()); |
| 275 |
|
| 276 |
Map.Entry e2 = map.ceilingEntry(zero); |
| 277 |
assertEquals(one, e2.getKey()); |
| 278 |
|
| 279 |
Map.Entry e3 = map.ceilingEntry(five); |
| 280 |
assertEquals(five, e3.getKey()); |
| 281 |
|
| 282 |
Map.Entry e4 = map.ceilingEntry(six); |
| 283 |
assertNull(e4); |
| 284 |
|
| 285 |
} |
| 286 |
|
| 287 |
/** |
| 288 |
* pollFirstEntry returns entries in order |
| 289 |
*/ |
| 290 |
public void testPollFirstEntry() { |
| 291 |
NavigableMap map = map5(); |
| 292 |
Map.Entry e = map.pollFirstEntry(); |
| 293 |
assertEquals(one, e.getKey()); |
| 294 |
assertEquals("A", e.getValue()); |
| 295 |
e = map.pollFirstEntry(); |
| 296 |
assertEquals(two, e.getKey()); |
| 297 |
map.put(one, "A"); |
| 298 |
e = map.pollFirstEntry(); |
| 299 |
assertEquals(one, e.getKey()); |
| 300 |
assertEquals("A", e.getValue()); |
| 301 |
e = map.pollFirstEntry(); |
| 302 |
assertEquals(three, e.getKey()); |
| 303 |
map.remove(four); |
| 304 |
e = map.pollFirstEntry(); |
| 305 |
assertEquals(five, e.getKey()); |
| 306 |
try { |
| 307 |
e.setValue("A"); |
| 308 |
shouldThrow(); |
| 309 |
} catch (Exception ok) { |
| 310 |
} |
| 311 |
assertTrue(map.isEmpty()); |
| 312 |
Map.Entry f = map.firstEntry(); |
| 313 |
assertNull(f); |
| 314 |
e = map.pollFirstEntry(); |
| 315 |
assertNull(e); |
| 316 |
} |
| 317 |
|
| 318 |
/** |
| 319 |
* pollLastEntry returns entries in order |
| 320 |
*/ |
| 321 |
public void testPollLastEntry() { |
| 322 |
NavigableMap map = map5(); |
| 323 |
Map.Entry e = map.pollLastEntry(); |
| 324 |
assertEquals(five, e.getKey()); |
| 325 |
assertEquals("E", e.getValue()); |
| 326 |
e = map.pollLastEntry(); |
| 327 |
assertEquals(four, e.getKey()); |
| 328 |
map.put(five, "E"); |
| 329 |
e = map.pollLastEntry(); |
| 330 |
assertEquals(five, e.getKey()); |
| 331 |
assertEquals("E", e.getValue()); |
| 332 |
e = map.pollLastEntry(); |
| 333 |
assertEquals(three, e.getKey()); |
| 334 |
map.remove(two); |
| 335 |
e = map.pollLastEntry(); |
| 336 |
assertEquals(one, e.getKey()); |
| 337 |
try { |
| 338 |
e.setValue("E"); |
| 339 |
shouldThrow(); |
| 340 |
} catch (Exception ok) { |
| 341 |
} |
| 342 |
e = map.pollLastEntry(); |
| 343 |
assertNull(e); |
| 344 |
} |
| 345 |
|
| 346 |
/** |
| 347 |
* size returns the correct values |
| 348 |
*/ |
| 349 |
public void testSize() { |
| 350 |
NavigableMap map = map5(); |
| 351 |
NavigableMap empty = map0(); |
| 352 |
assertEquals(0, empty.size()); |
| 353 |
assertEquals(5, map.size()); |
| 354 |
} |
| 355 |
|
| 356 |
/** |
| 357 |
* toString contains toString of elements |
| 358 |
*/ |
| 359 |
public void testToString() { |
| 360 |
NavigableMap map = map5(); |
| 361 |
String s = map.toString(); |
| 362 |
for (int i = 1; i <= 5; ++i) { |
| 363 |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
| 364 |
} |
| 365 |
} |
| 366 |
|
| 367 |
// Exception tests |
| 368 |
|
| 369 |
/** |
| 370 |
* get(null) of nonempty map throws NPE |
| 371 |
*/ |
| 372 |
public void testGet_NullPointerException() { |
| 373 |
try { |
| 374 |
NavigableMap c = map5(); |
| 375 |
c.get(null); |
| 376 |
shouldThrow(); |
| 377 |
} catch(NullPointerException e){} |
| 378 |
} |
| 379 |
|
| 380 |
/** |
| 381 |
* containsKey(null) of nonempty map throws NPE |
| 382 |
*/ |
| 383 |
public void testContainsKey_NullPointerException() { |
| 384 |
try { |
| 385 |
NavigableMap c = map5(); |
| 386 |
c.containsKey(null); |
| 387 |
shouldThrow(); |
| 388 |
} catch(NullPointerException e){} |
| 389 |
} |
| 390 |
|
| 391 |
/** |
| 392 |
* put(null,x) throws NPE |
| 393 |
*/ |
| 394 |
public void testPut1_NullPointerException() { |
| 395 |
try { |
| 396 |
NavigableMap c = map5(); |
| 397 |
c.put(null, "whatever"); |
| 398 |
shouldThrow(); |
| 399 |
} catch(NullPointerException e){} |
| 400 |
} |
| 401 |
|
| 402 |
/** |
| 403 |
* remove(null) throws NPE |
| 404 |
*/ |
| 405 |
public void testRemove1_NullPointerException() { |
| 406 |
try { |
| 407 |
NavigableMap c = map5(); |
| 408 |
c.remove(null); |
| 409 |
shouldThrow(); |
| 410 |
} catch(NullPointerException e){} |
| 411 |
} |
| 412 |
|
| 413 |
/** |
| 414 |
* A deserialized map equals original |
| 415 |
*/ |
| 416 |
public void testSerialization() { |
| 417 |
NavigableMap q = map5(); |
| 418 |
|
| 419 |
try { |
| 420 |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
| 421 |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
| 422 |
out.writeObject(q); |
| 423 |
out.close(); |
| 424 |
|
| 425 |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
| 426 |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
| 427 |
NavigableMap r = (NavigableMap)in.readObject(); |
| 428 |
assertFalse(r.isEmpty()); |
| 429 |
assertEquals(q.size(), r.size()); |
| 430 |
assertTrue(q.equals(r)); |
| 431 |
assertTrue(r.equals(q)); |
| 432 |
} catch(Exception e){ |
| 433 |
e.printStackTrace(); |
| 434 |
unexpectedException(); |
| 435 |
} |
| 436 |
} |
| 437 |
|
| 438 |
|
| 439 |
|
| 440 |
/** |
| 441 |
* subMap returns map with keys in requested range |
| 442 |
*/ |
| 443 |
public void testSubMapContents() { |
| 444 |
NavigableMap map = map5(); |
| 445 |
SortedMap sm = map.subMap(two, four); |
| 446 |
assertEquals(two, sm.firstKey()); |
| 447 |
assertEquals(three, sm.lastKey()); |
| 448 |
assertEquals(2, sm.size()); |
| 449 |
assertFalse(sm.containsKey(one)); |
| 450 |
assertTrue(sm.containsKey(two)); |
| 451 |
assertTrue(sm.containsKey(three)); |
| 452 |
assertFalse(sm.containsKey(four)); |
| 453 |
assertFalse(sm.containsKey(five)); |
| 454 |
Iterator i = sm.keySet().iterator(); |
| 455 |
Object k; |
| 456 |
k = (Integer)(i.next()); |
| 457 |
assertEquals(two, k); |
| 458 |
k = (Integer)(i.next()); |
| 459 |
assertEquals(three, k); |
| 460 |
assertFalse(i.hasNext()); |
| 461 |
Iterator j = sm.keySet().iterator(); |
| 462 |
j.next(); |
| 463 |
j.remove(); |
| 464 |
assertFalse(map.containsKey(two)); |
| 465 |
assertEquals(4, map.size()); |
| 466 |
assertEquals(1, sm.size()); |
| 467 |
assertEquals(three, sm.firstKey()); |
| 468 |
assertEquals(three, sm.lastKey()); |
| 469 |
assertTrue(sm.remove(three) != null); |
| 470 |
assertTrue(sm.isEmpty()); |
| 471 |
assertEquals(3, map.size()); |
| 472 |
} |
| 473 |
|
| 474 |
public void testSubMapContents2() { |
| 475 |
NavigableMap map = map5(); |
| 476 |
SortedMap sm = map.subMap(two, three); |
| 477 |
assertEquals(1, sm.size()); |
| 478 |
assertEquals(two, sm.firstKey()); |
| 479 |
assertEquals(two, sm.lastKey()); |
| 480 |
assertFalse(sm.containsKey(one)); |
| 481 |
assertTrue(sm.containsKey(two)); |
| 482 |
assertFalse(sm.containsKey(three)); |
| 483 |
assertFalse(sm.containsKey(four)); |
| 484 |
assertFalse(sm.containsKey(five)); |
| 485 |
Iterator i = sm.keySet().iterator(); |
| 486 |
Object k; |
| 487 |
k = (Integer)(i.next()); |
| 488 |
assertEquals(two, k); |
| 489 |
assertFalse(i.hasNext()); |
| 490 |
Iterator j = sm.keySet().iterator(); |
| 491 |
j.next(); |
| 492 |
j.remove(); |
| 493 |
assertFalse(map.containsKey(two)); |
| 494 |
assertEquals(4, map.size()); |
| 495 |
assertEquals(0, sm.size()); |
| 496 |
assertTrue(sm.isEmpty()); |
| 497 |
assertTrue(sm.remove(three) == null); |
| 498 |
assertEquals(4, map.size()); |
| 499 |
} |
| 500 |
|
| 501 |
/** |
| 502 |
* headMap returns map with keys in requested range |
| 503 |
*/ |
| 504 |
public void testHeadMapContents() { |
| 505 |
NavigableMap map = map5(); |
| 506 |
SortedMap sm = map.headMap(four); |
| 507 |
assertTrue(sm.containsKey(one)); |
| 508 |
assertTrue(sm.containsKey(two)); |
| 509 |
assertTrue(sm.containsKey(three)); |
| 510 |
assertFalse(sm.containsKey(four)); |
| 511 |
assertFalse(sm.containsKey(five)); |
| 512 |
Iterator i = sm.keySet().iterator(); |
| 513 |
Object k; |
| 514 |
k = (Integer)(i.next()); |
| 515 |
assertEquals(one, k); |
| 516 |
k = (Integer)(i.next()); |
| 517 |
assertEquals(two, k); |
| 518 |
k = (Integer)(i.next()); |
| 519 |
assertEquals(three, k); |
| 520 |
assertFalse(i.hasNext()); |
| 521 |
sm.clear(); |
| 522 |
assertTrue(sm.isEmpty()); |
| 523 |
assertEquals(2, map.size()); |
| 524 |
assertEquals(four, map.firstKey()); |
| 525 |
} |
| 526 |
|
| 527 |
/** |
| 528 |
* headMap returns map with keys in requested range |
| 529 |
*/ |
| 530 |
public void testTailMapContents() { |
| 531 |
NavigableMap map = map5(); |
| 532 |
SortedMap sm = map.tailMap(two); |
| 533 |
assertFalse(sm.containsKey(one)); |
| 534 |
assertTrue(sm.containsKey(two)); |
| 535 |
assertTrue(sm.containsKey(three)); |
| 536 |
assertTrue(sm.containsKey(four)); |
| 537 |
assertTrue(sm.containsKey(five)); |
| 538 |
Iterator i = sm.keySet().iterator(); |
| 539 |
Object k; |
| 540 |
k = (Integer)(i.next()); |
| 541 |
assertEquals(two, k); |
| 542 |
k = (Integer)(i.next()); |
| 543 |
assertEquals(three, k); |
| 544 |
k = (Integer)(i.next()); |
| 545 |
assertEquals(four, k); |
| 546 |
k = (Integer)(i.next()); |
| 547 |
assertEquals(five, k); |
| 548 |
assertFalse(i.hasNext()); |
| 549 |
|
| 550 |
Iterator ei = sm.entrySet().iterator(); |
| 551 |
Map.Entry e; |
| 552 |
e = (Map.Entry)(ei.next()); |
| 553 |
assertEquals(two, e.getKey()); |
| 554 |
assertEquals("B", e.getValue()); |
| 555 |
e = (Map.Entry)(ei.next()); |
| 556 |
assertEquals(three, e.getKey()); |
| 557 |
assertEquals("C", e.getValue()); |
| 558 |
e = (Map.Entry)(ei.next()); |
| 559 |
assertEquals(four, e.getKey()); |
| 560 |
assertEquals("D", e.getValue()); |
| 561 |
e = (Map.Entry)(ei.next()); |
| 562 |
assertEquals(five, e.getKey()); |
| 563 |
assertEquals("E", e.getValue()); |
| 564 |
assertFalse(i.hasNext()); |
| 565 |
|
| 566 |
SortedMap ssm = sm.tailMap(four); |
| 567 |
assertEquals(four, ssm.firstKey()); |
| 568 |
assertEquals(five, ssm.lastKey()); |
| 569 |
assertTrue(ssm.remove(four) != null); |
| 570 |
assertEquals(1, ssm.size()); |
| 571 |
assertEquals(3, sm.size()); |
| 572 |
assertEquals(4, map.size()); |
| 573 |
} |
| 574 |
|
| 575 |
} |
