| 29 |
|
class Implementation implements CollectionImplementation { |
| 30 |
|
public Class<?> klazz() { return CopyOnWriteArrayList.class; } |
| 31 |
|
public List emptyCollection() { return new CopyOnWriteArrayList(); } |
| 32 |
< |
public Object makeElement(int i) { return i; } |
| 32 |
> |
public Object makeElement(int i) { return JSR166TestCase.itemFor(i); } |
| 33 |
|
public boolean isConcurrent() { return true; } |
| 34 |
|
public boolean permitsNulls() { return true; } |
| 35 |
|
} |
| 36 |
|
class SubListImplementation extends Implementation { |
| 37 |
+ |
@SuppressWarnings("unchecked") |
| 38 |
|
public List emptyCollection() { |
| 39 |
|
List list = super.emptyCollection(); |
| 40 |
|
ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
| 50 |
|
CollectionTest.testSuite(new SubListImplementation())); |
| 51 |
|
} |
| 52 |
|
|
| 53 |
< |
static CopyOnWriteArrayList<Integer> populatedList(int n) { |
| 54 |
< |
CopyOnWriteArrayList<Integer> list = new CopyOnWriteArrayList<>(); |
| 53 |
> |
static CopyOnWriteArrayList<Item> populatedList(int n) { |
| 54 |
> |
CopyOnWriteArrayList<Item> list = new CopyOnWriteArrayList<>(); |
| 55 |
|
assertTrue(list.isEmpty()); |
| 56 |
|
for (int i = 0; i < n; i++) |
| 57 |
< |
list.add(i); |
| 58 |
< |
assertEquals(n <= 0, list.isEmpty()); |
| 59 |
< |
assertEquals(n, list.size()); |
| 57 |
> |
mustAdd(list, i); |
| 58 |
> |
mustEqual(n <= 0, list.isEmpty()); |
| 59 |
> |
mustEqual(n, list.size()); |
| 60 |
|
return list; |
| 61 |
|
} |
| 62 |
|
|
| 63 |
< |
static CopyOnWriteArrayList<Integer> populatedList(Integer[] elements) { |
| 64 |
< |
CopyOnWriteArrayList<Integer> list = new CopyOnWriteArrayList<>(); |
| 63 |
> |
static CopyOnWriteArrayList<Item> populatedList(Item[] elements) { |
| 64 |
> |
CopyOnWriteArrayList<Item> list = new CopyOnWriteArrayList<>(); |
| 65 |
|
assertTrue(list.isEmpty()); |
| 66 |
< |
for (Integer element : elements) |
| 66 |
> |
for (Item element : elements) |
| 67 |
|
list.add(element); |
| 68 |
|
assertFalse(list.isEmpty()); |
| 69 |
< |
assertEquals(elements.length, list.size()); |
| 69 |
> |
mustEqual(elements.length, list.size()); |
| 70 |
|
return list; |
| 71 |
|
} |
| 72 |
|
|
| 74 |
|
* a new list is empty |
| 75 |
|
*/ |
| 76 |
|
public void testConstructor() { |
| 77 |
< |
List list = new CopyOnWriteArrayList(); |
| 77 |
> |
List<Item> list = new CopyOnWriteArrayList<Item>(); |
| 78 |
|
assertTrue(list.isEmpty()); |
| 79 |
|
} |
| 80 |
|
|
| 82 |
|
* new list contains all elements of initializing array |
| 83 |
|
*/ |
| 84 |
|
public void testConstructor2() { |
| 85 |
< |
Integer[] elts = new Integer[SIZE]; |
| 86 |
< |
for (int i = 0; i < SIZE - 1; ++i) |
| 86 |
< |
elts[i] = i; |
| 87 |
< |
List list = new CopyOnWriteArrayList(elts); |
| 85 |
> |
Item[] elts = defaultItems; |
| 86 |
> |
List<Item> list = new CopyOnWriteArrayList<Item>(elts); |
| 87 |
|
for (int i = 0; i < SIZE; ++i) |
| 88 |
< |
assertEquals(elts[i], list.get(i)); |
| 88 |
> |
mustEqual(elts[i], list.get(i)); |
| 89 |
|
} |
| 90 |
|
|
| 91 |
|
/** |
| 92 |
|
* new list contains all elements of initializing collection |
| 93 |
|
*/ |
| 94 |
|
public void testConstructor3() { |
| 95 |
< |
Integer[] elts = new Integer[SIZE]; |
| 96 |
< |
for (int i = 0; i < SIZE - 1; ++i) |
| 98 |
< |
elts[i] = i; |
| 99 |
< |
List list = new CopyOnWriteArrayList(Arrays.asList(elts)); |
| 95 |
> |
Item[] elts = defaultItems; |
| 96 |
> |
List<Item> list = new CopyOnWriteArrayList<Item>(Arrays.asList(elts)); |
| 97 |
|
for (int i = 0; i < SIZE; ++i) |
| 98 |
< |
assertEquals(elts[i], list.get(i)); |
| 98 |
> |
mustEqual(elts[i], list.get(i)); |
| 99 |
|
} |
| 100 |
|
|
| 101 |
|
/** |
| 102 |
|
* addAll adds each element from the given collection, including duplicates |
| 103 |
|
*/ |
| 104 |
|
public void testAddAll() { |
| 105 |
< |
List list = populatedList(3); |
| 105 |
> |
List<Item> list = populatedList(3); |
| 106 |
|
assertTrue(list.addAll(Arrays.asList(three, four, five))); |
| 107 |
< |
assertEquals(6, list.size()); |
| 107 |
> |
mustEqual(6, list.size()); |
| 108 |
|
assertTrue(list.addAll(Arrays.asList(three, four, five))); |
| 109 |
< |
assertEquals(9, list.size()); |
| 109 |
> |
mustEqual(9, list.size()); |
| 110 |
|
} |
| 111 |
|
|
| 112 |
|
/** |
| 114 |
|
* already exist in the List |
| 115 |
|
*/ |
| 116 |
|
public void testAddAllAbsent() { |
| 117 |
< |
CopyOnWriteArrayList list = populatedList(3); |
| 117 |
> |
CopyOnWriteArrayList<Item> list = populatedList(3); |
| 118 |
|
// "one" is duplicate and will not be added |
| 119 |
< |
assertEquals(2, list.addAllAbsent(Arrays.asList(three, four, one))); |
| 120 |
< |
assertEquals(5, list.size()); |
| 121 |
< |
assertEquals(0, list.addAllAbsent(Arrays.asList(three, four, one))); |
| 122 |
< |
assertEquals(5, list.size()); |
| 119 |
> |
mustEqual(2, list.addAllAbsent(Arrays.asList(three, four, one))); |
| 120 |
> |
mustEqual(5, list.size()); |
| 121 |
> |
mustEqual(0, list.addAllAbsent(Arrays.asList(three, four, one))); |
| 122 |
> |
mustEqual(5, list.size()); |
| 123 |
|
} |
| 124 |
|
|
| 125 |
|
/** |
| 126 |
|
* addIfAbsent will not add the element if it already exists in the list |
| 127 |
|
*/ |
| 128 |
|
public void testAddIfAbsent() { |
| 129 |
< |
CopyOnWriteArrayList list = populatedList(SIZE); |
| 129 |
> |
CopyOnWriteArrayList<Item> list = populatedList(SIZE); |
| 130 |
|
list.addIfAbsent(one); |
| 131 |
< |
assertEquals(SIZE, list.size()); |
| 131 |
> |
mustEqual(SIZE, list.size()); |
| 132 |
|
} |
| 133 |
|
|
| 134 |
|
/** |
| 135 |
|
* addIfAbsent adds the element when it does not exist in the list |
| 136 |
|
*/ |
| 137 |
|
public void testAddIfAbsent2() { |
| 138 |
< |
CopyOnWriteArrayList list = populatedList(SIZE); |
| 138 |
> |
CopyOnWriteArrayList<Item> list = populatedList(SIZE); |
| 139 |
|
list.addIfAbsent(three); |
| 140 |
< |
assertTrue(list.contains(three)); |
| 140 |
> |
mustContain(list, three); |
| 141 |
|
} |
| 142 |
|
|
| 143 |
|
/** |
| 144 |
|
* clear removes all elements from the list |
| 145 |
|
*/ |
| 146 |
|
public void testClear() { |
| 147 |
< |
List list = populatedList(SIZE); |
| 147 |
> |
List<Item> list = populatedList(SIZE); |
| 148 |
|
list.clear(); |
| 149 |
< |
assertEquals(0, list.size()); |
| 149 |
> |
mustEqual(0, list.size()); |
| 150 |
|
} |
| 151 |
|
|
| 152 |
|
/** |
| 153 |
|
* Cloned list is equal |
| 154 |
|
*/ |
| 155 |
|
public void testClone() { |
| 156 |
< |
CopyOnWriteArrayList l1 = populatedList(SIZE); |
| 157 |
< |
CopyOnWriteArrayList l2 = (CopyOnWriteArrayList)(l1.clone()); |
| 158 |
< |
assertEquals(l1, l2); |
| 156 |
> |
CopyOnWriteArrayList<Item> l1 = populatedList(SIZE); |
| 157 |
> |
@SuppressWarnings("unchecked") |
| 158 |
> |
CopyOnWriteArrayList<Item> l2 = (CopyOnWriteArrayList<Item>)(l1.clone()); |
| 159 |
> |
mustEqual(l1, l2); |
| 160 |
|
l1.clear(); |
| 161 |
|
assertFalse(l1.equals(l2)); |
| 162 |
|
} |
| 165 |
|
* contains is true for added elements |
| 166 |
|
*/ |
| 167 |
|
public void testContains() { |
| 168 |
< |
List list = populatedList(3); |
| 169 |
< |
assertTrue(list.contains(one)); |
| 170 |
< |
assertFalse(list.contains(five)); |
| 168 |
> |
List<Item> list = populatedList(3); |
| 169 |
> |
mustContain(list, one); |
| 170 |
> |
mustNotContain(list, five); |
| 171 |
|
} |
| 172 |
|
|
| 173 |
|
/** |
| 174 |
|
* adding at an index places it in the indicated index |
| 175 |
|
*/ |
| 176 |
|
public void testAddIndex() { |
| 177 |
< |
List list = populatedList(3); |
| 178 |
< |
list.add(0, m1); |
| 179 |
< |
assertEquals(4, list.size()); |
| 180 |
< |
assertEquals(m1, list.get(0)); |
| 181 |
< |
assertEquals(zero, list.get(1)); |
| 182 |
< |
|
| 183 |
< |
list.add(2, m2); |
| 184 |
< |
assertEquals(5, list.size()); |
| 185 |
< |
assertEquals(m2, list.get(2)); |
| 186 |
< |
assertEquals(two, list.get(4)); |
| 177 |
> |
List<Item> list = populatedList(3); |
| 178 |
> |
list.add(0, minusOne); |
| 179 |
> |
mustEqual(4, list.size()); |
| 180 |
> |
mustEqual(minusOne, list.get(0)); |
| 181 |
> |
mustEqual(zero, list.get(1)); |
| 182 |
> |
|
| 183 |
> |
list.add(2, minusTwo); |
| 184 |
> |
mustEqual(5, list.size()); |
| 185 |
> |
mustEqual(minusTwo, list.get(2)); |
| 186 |
> |
mustEqual(two, list.get(4)); |
| 187 |
|
} |
| 188 |
|
|
| 189 |
|
/** |
| 190 |
|
* lists with same elements are equal and have same hashCode |
| 191 |
|
*/ |
| 192 |
|
public void testEquals() { |
| 193 |
< |
List a = populatedList(3); |
| 194 |
< |
List b = populatedList(3); |
| 193 |
> |
List<Item> a = populatedList(3); |
| 194 |
> |
List<Item> b = populatedList(3); |
| 195 |
|
assertTrue(a.equals(b)); |
| 196 |
|
assertTrue(b.equals(a)); |
| 197 |
|
assertTrue(a.containsAll(b)); |
| 198 |
|
assertTrue(b.containsAll(a)); |
| 199 |
< |
assertEquals(a.hashCode(), b.hashCode()); |
| 200 |
< |
a.add(m1); |
| 199 |
> |
mustEqual(a.hashCode(), b.hashCode()); |
| 200 |
> |
a.add(minusOne); |
| 201 |
|
assertFalse(a.equals(b)); |
| 202 |
|
assertFalse(b.equals(a)); |
| 203 |
|
assertTrue(a.containsAll(b)); |
| 204 |
|
assertFalse(b.containsAll(a)); |
| 205 |
< |
b.add(m1); |
| 205 |
> |
b.add(minusOne); |
| 206 |
|
assertTrue(a.equals(b)); |
| 207 |
|
assertTrue(b.equals(a)); |
| 208 |
|
assertTrue(a.containsAll(b)); |
| 209 |
|
assertTrue(b.containsAll(a)); |
| 210 |
< |
assertEquals(a.hashCode(), b.hashCode()); |
| 210 |
> |
mustEqual(a.hashCode(), b.hashCode()); |
| 211 |
|
|
| 212 |
|
assertFalse(a.equals(null)); |
| 213 |
|
} |
| 216 |
|
* containsAll returns true for collections with subset of elements |
| 217 |
|
*/ |
| 218 |
|
public void testContainsAll() { |
| 219 |
< |
List list = populatedList(3); |
| 219 |
> |
List<Item> list = populatedList(3); |
| 220 |
|
assertTrue(list.containsAll(Arrays.asList())); |
| 221 |
|
assertTrue(list.containsAll(Arrays.asList(one))); |
| 222 |
|
assertTrue(list.containsAll(Arrays.asList(one, two))); |
| 233 |
|
* get returns the value at the given index |
| 234 |
|
*/ |
| 235 |
|
public void testGet() { |
| 236 |
< |
List list = populatedList(3); |
| 237 |
< |
assertEquals(0, list.get(0)); |
| 236 |
> |
List<Item> list = populatedList(3); |
| 237 |
> |
mustEqual(0, list.get(0)); |
| 238 |
|
} |
| 239 |
|
|
| 240 |
|
/** |
| 243 |
|
* contain the element |
| 244 |
|
*/ |
| 245 |
|
public void testIndexOf() { |
| 246 |
< |
List list = populatedList(3); |
| 247 |
< |
assertEquals(-1, list.indexOf(-42)); |
| 246 |
> |
List<Item> list = populatedList(3); |
| 247 |
> |
mustEqual(-1, list.indexOf(minusTen)); |
| 248 |
|
int size = list.size(); |
| 249 |
|
for (int i = 0; i < size; i++) { |
| 250 |
< |
assertEquals(i, list.indexOf(i)); |
| 251 |
< |
assertEquals(i, list.subList(0, size).indexOf(i)); |
| 252 |
< |
assertEquals(i, list.subList(0, i + 1).indexOf(i)); |
| 253 |
< |
assertEquals(-1, list.subList(0, i).indexOf(i)); |
| 254 |
< |
assertEquals(0, list.subList(i, size).indexOf(i)); |
| 255 |
< |
assertEquals(-1, list.subList(i + 1, size).indexOf(i)); |
| 250 |
> |
Item I = itemFor(i); |
| 251 |
> |
mustEqual(i, list.indexOf(I)); |
| 252 |
> |
mustEqual(i, list.subList(0, size).indexOf(I)); |
| 253 |
> |
mustEqual(i, list.subList(0, i + 1).indexOf(I)); |
| 254 |
> |
mustEqual(-1, list.subList(0, i).indexOf(I)); |
| 255 |
> |
mustEqual(0, list.subList(i, size).indexOf(I)); |
| 256 |
> |
mustEqual(-1, list.subList(i + 1, size).indexOf(I)); |
| 257 |
|
} |
| 258 |
|
|
| 259 |
< |
list.add(1); |
| 260 |
< |
assertEquals(1, list.indexOf(1)); |
| 261 |
< |
assertEquals(1, list.subList(0, size + 1).indexOf(1)); |
| 262 |
< |
assertEquals(0, list.subList(1, size + 1).indexOf(1)); |
| 263 |
< |
assertEquals(size - 2, list.subList(2, size + 1).indexOf(1)); |
| 264 |
< |
assertEquals(0, list.subList(size, size + 1).indexOf(1)); |
| 265 |
< |
assertEquals(-1, list.subList(size + 1, size + 1).indexOf(1)); |
| 259 |
> |
list.add(one); |
| 260 |
> |
mustEqual(1, list.indexOf(one)); |
| 261 |
> |
mustEqual(1, list.subList(0, size + 1).indexOf(one)); |
| 262 |
> |
mustEqual(0, list.subList(1, size + 1).indexOf(one)); |
| 263 |
> |
mustEqual(size - 2, list.subList(2, size + 1).indexOf(one)); |
| 264 |
> |
mustEqual(0, list.subList(size, size + 1).indexOf(one)); |
| 265 |
> |
mustEqual(-1, list.subList(size + 1, size + 1).indexOf(one)); |
| 266 |
|
} |
| 267 |
|
|
| 268 |
|
/** |
| 271 |
|
* or returns -1 if the element is not found |
| 272 |
|
*/ |
| 273 |
|
public void testIndexOf2() { |
| 274 |
< |
CopyOnWriteArrayList list = populatedList(3); |
| 274 |
> |
CopyOnWriteArrayList<Item> list = populatedList(3); |
| 275 |
|
int size = list.size(); |
| 276 |
< |
assertEquals(-1, list.indexOf(-42, 0)); |
| 276 |
> |
mustEqual(-1, list.indexOf(minusTen, 0)); |
| 277 |
|
|
| 278 |
|
// we might expect IOOBE, but spec says otherwise |
| 279 |
< |
assertEquals(-1, list.indexOf(0, size)); |
| 280 |
< |
assertEquals(-1, list.indexOf(0, Integer.MAX_VALUE)); |
| 279 |
> |
mustEqual(-1, list.indexOf(zero, size)); |
| 280 |
> |
mustEqual(-1, list.indexOf(zero, Integer.MAX_VALUE)); |
| 281 |
|
|
| 282 |
|
assertThrows( |
| 283 |
|
IndexOutOfBoundsException.class, |
| 284 |
< |
() -> list.indexOf(0, -1), |
| 285 |
< |
() -> list.indexOf(0, Integer.MIN_VALUE)); |
| 284 |
> |
() -> list.indexOf(zero, -1), |
| 285 |
> |
() -> list.indexOf(zero, Integer.MIN_VALUE)); |
| 286 |
|
|
| 287 |
|
for (int i = 0; i < size; i++) { |
| 288 |
< |
assertEquals(i, list.indexOf(i, 0)); |
| 289 |
< |
assertEquals(i, list.indexOf(i, i)); |
| 290 |
< |
assertEquals(-1, list.indexOf(i, i + 1)); |
| 288 |
> |
Item I = itemFor(i); |
| 289 |
> |
mustEqual(i, list.indexOf(I, 0)); |
| 290 |
> |
mustEqual(i, list.indexOf(I, i)); |
| 291 |
> |
mustEqual(-1, list.indexOf(I, i + 1)); |
| 292 |
|
} |
| 293 |
|
|
| 294 |
< |
list.add(1); |
| 295 |
< |
assertEquals(1, list.indexOf(1, 0)); |
| 296 |
< |
assertEquals(1, list.indexOf(1, 1)); |
| 297 |
< |
assertEquals(size, list.indexOf(1, 2)); |
| 298 |
< |
assertEquals(size, list.indexOf(1, size)); |
| 294 |
> |
list.add(one); |
| 295 |
> |
mustEqual(1, list.indexOf(one, 0)); |
| 296 |
> |
mustEqual(1, list.indexOf(one, 1)); |
| 297 |
> |
mustEqual(size, list.indexOf(one, 2)); |
| 298 |
> |
mustEqual(size, list.indexOf(one, size)); |
| 299 |
|
} |
| 300 |
|
|
| 301 |
|
/** |
| 302 |
|
* isEmpty returns true when empty, else false |
| 303 |
|
*/ |
| 304 |
|
public void testIsEmpty() { |
| 305 |
< |
List empty = new CopyOnWriteArrayList(); |
| 305 |
> |
List<Item> empty = new CopyOnWriteArrayList<Item>(); |
| 306 |
|
assertTrue(empty.isEmpty()); |
| 307 |
|
assertTrue(empty.subList(0, 0).isEmpty()); |
| 308 |
|
|
| 309 |
< |
List full = populatedList(SIZE); |
| 309 |
> |
List<Item> full = populatedList(SIZE); |
| 310 |
|
assertFalse(full.isEmpty()); |
| 311 |
|
assertTrue(full.subList(0, 0).isEmpty()); |
| 312 |
|
assertTrue(full.subList(SIZE, SIZE).isEmpty()); |
| 317 |
|
* list in insertion order |
| 318 |
|
*/ |
| 319 |
|
public void testIterator() { |
| 320 |
< |
Collection empty = new CopyOnWriteArrayList(); |
| 320 |
> |
Collection<Item> empty = new CopyOnWriteArrayList<Item>(); |
| 321 |
|
assertFalse(empty.iterator().hasNext()); |
| 322 |
|
try { |
| 323 |
|
empty.iterator().next(); |
| 324 |
|
shouldThrow(); |
| 325 |
|
} catch (NoSuchElementException success) {} |
| 326 |
|
|
| 327 |
< |
Integer[] elements = new Integer[SIZE]; |
| 328 |
< |
for (int i = 0; i < SIZE; i++) |
| 329 |
< |
elements[i] = i; |
| 327 |
> |
Item[] elements = seqItems(SIZE); |
| 328 |
|
shuffle(elements); |
| 329 |
< |
Collection<Integer> full = populatedList(elements); |
| 329 |
> |
Collection<Item> full = populatedList(elements); |
| 330 |
|
|
| 331 |
< |
Iterator it = full.iterator(); |
| 331 |
> |
Iterator<? extends Item> it = full.iterator(); |
| 332 |
|
for (int j = 0; j < SIZE; j++) { |
| 333 |
|
assertTrue(it.hasNext()); |
| 334 |
< |
assertEquals(elements[j], it.next()); |
| 334 |
> |
mustEqual(elements[j], it.next()); |
| 335 |
|
} |
| 336 |
|
assertIteratorExhausted(it); |
| 337 |
|
} |
| 340 |
|
* iterator of empty collection has no elements |
| 341 |
|
*/ |
| 342 |
|
public void testEmptyIterator() { |
| 343 |
< |
Collection c = new CopyOnWriteArrayList(); |
| 343 |
> |
Collection<Item> c = new CopyOnWriteArrayList<Item>(); |
| 344 |
|
assertIteratorExhausted(c.iterator()); |
| 345 |
|
} |
| 346 |
|
|
| 348 |
|
* iterator.remove throws UnsupportedOperationException |
| 349 |
|
*/ |
| 350 |
|
public void testIteratorRemove() { |
| 351 |
< |
CopyOnWriteArrayList list = populatedList(SIZE); |
| 352 |
< |
Iterator it = list.iterator(); |
| 351 |
> |
CopyOnWriteArrayList<Item> list = populatedList(SIZE); |
| 352 |
> |
Iterator<? extends Item> it = list.iterator(); |
| 353 |
|
it.next(); |
| 354 |
|
try { |
| 355 |
|
it.remove(); |
| 361 |
|
* toString contains toString of elements |
| 362 |
|
*/ |
| 363 |
|
public void testToString() { |
| 364 |
< |
assertEquals("[]", new CopyOnWriteArrayList().toString()); |
| 365 |
< |
List list = populatedList(3); |
| 364 |
> |
mustEqual("[]", new CopyOnWriteArrayList<Item>().toString()); |
| 365 |
> |
List<Item> list = populatedList(3); |
| 366 |
|
String s = list.toString(); |
| 367 |
|
for (int i = 0; i < 3; ++i) |
| 368 |
|
assertTrue(s.contains(String.valueOf(i))); |
| 369 |
< |
assertEquals(new ArrayList(list).toString(), |
| 369 |
> |
mustEqual(new ArrayList<Item>(list).toString(), |
| 370 |
|
list.toString()); |
| 371 |
|
} |
| 372 |
|
|
| 376 |
|
* contain the element |
| 377 |
|
*/ |
| 378 |
|
public void testLastIndexOf1() { |
| 379 |
< |
List list = populatedList(3); |
| 380 |
< |
assertEquals(-1, list.lastIndexOf(-42)); |
| 379 |
> |
List<Item> list = populatedList(3); |
| 380 |
> |
mustEqual(-1, list.lastIndexOf(itemFor(-42))); |
| 381 |
|
int size = list.size(); |
| 382 |
|
for (int i = 0; i < size; i++) { |
| 383 |
< |
assertEquals(i, list.lastIndexOf(i)); |
| 384 |
< |
assertEquals(i, list.subList(0, size).lastIndexOf(i)); |
| 385 |
< |
assertEquals(i, list.subList(0, i + 1).lastIndexOf(i)); |
| 386 |
< |
assertEquals(-1, list.subList(0, i).lastIndexOf(i)); |
| 387 |
< |
assertEquals(0, list.subList(i, size).lastIndexOf(i)); |
| 388 |
< |
assertEquals(-1, list.subList(i + 1, size).lastIndexOf(i)); |
| 383 |
> |
Item I = itemFor(i); |
| 384 |
> |
mustEqual(i, list.lastIndexOf(I)); |
| 385 |
> |
mustEqual(i, list.subList(0, size).lastIndexOf(I)); |
| 386 |
> |
mustEqual(i, list.subList(0, i + 1).lastIndexOf(I)); |
| 387 |
> |
mustEqual(-1, list.subList(0, i).lastIndexOf(I)); |
| 388 |
> |
mustEqual(0, list.subList(i, size).lastIndexOf(I)); |
| 389 |
> |
mustEqual(-1, list.subList(i + 1, size).lastIndexOf(I)); |
| 390 |
|
} |
| 391 |
|
|
| 392 |
< |
list.add(1); |
| 393 |
< |
assertEquals(size, list.lastIndexOf(1)); |
| 394 |
< |
assertEquals(size, list.subList(0, size + 1).lastIndexOf(1)); |
| 395 |
< |
assertEquals(1, list.subList(0, size).lastIndexOf(1)); |
| 396 |
< |
assertEquals(0, list.subList(1, 2).lastIndexOf(1)); |
| 397 |
< |
assertEquals(-1, list.subList(0, 1).indexOf(1)); |
| 392 |
> |
list.add(one); |
| 393 |
> |
mustEqual(size, list.lastIndexOf(one)); |
| 394 |
> |
mustEqual(size, list.subList(0, size + 1).lastIndexOf(one)); |
| 395 |
> |
mustEqual(1, list.subList(0, size).lastIndexOf(one)); |
| 396 |
> |
mustEqual(0, list.subList(1, 2).lastIndexOf(one)); |
| 397 |
> |
mustEqual(-1, list.subList(0, 1).indexOf(one)); |
| 398 |
|
} |
| 399 |
|
|
| 400 |
|
/** |
| 403 |
|
* returns -1 if the element is not found |
| 404 |
|
*/ |
| 405 |
|
public void testLastIndexOf2() { |
| 406 |
< |
CopyOnWriteArrayList list = populatedList(3); |
| 406 |
> |
CopyOnWriteArrayList<Item> list = populatedList(3); |
| 407 |
|
|
| 408 |
|
// we might expect IOOBE, but spec says otherwise |
| 409 |
< |
assertEquals(-1, list.lastIndexOf(0, -1)); |
| 409 |
> |
mustEqual(-1, list.lastIndexOf(zero, -1)); |
| 410 |
|
|
| 411 |
|
int size = list.size(); |
| 412 |
|
assertThrows( |
| 413 |
|
IndexOutOfBoundsException.class, |
| 414 |
< |
() -> list.lastIndexOf(0, size), |
| 415 |
< |
() -> list.lastIndexOf(0, Integer.MAX_VALUE)); |
| 414 |
> |
() -> list.lastIndexOf(zero, size), |
| 415 |
> |
() -> list.lastIndexOf(zero, Integer.MAX_VALUE)); |
| 416 |
|
|
| 417 |
|
for (int i = 0; i < size; i++) { |
| 418 |
< |
assertEquals(i, list.lastIndexOf(i, i)); |
| 419 |
< |
assertEquals(list.indexOf(i), list.lastIndexOf(i, i)); |
| 418 |
> |
Item I = itemFor(i); |
| 419 |
> |
mustEqual(i, list.lastIndexOf(I, i)); |
| 420 |
> |
mustEqual(list.indexOf(I), list.lastIndexOf(I, i)); |
| 421 |
|
if (i > 0) |
| 422 |
< |
assertEquals(-1, list.lastIndexOf(i, i - 1)); |
| 422 |
> |
mustEqual(-1, list.lastIndexOf(I, i - 1)); |
| 423 |
|
} |
| 424 |
|
list.add(one); |
| 425 |
|
list.add(three); |
| 426 |
< |
assertEquals(1, list.lastIndexOf(one, 1)); |
| 427 |
< |
assertEquals(1, list.lastIndexOf(one, 2)); |
| 428 |
< |
assertEquals(3, list.lastIndexOf(one, 3)); |
| 429 |
< |
assertEquals(3, list.lastIndexOf(one, 4)); |
| 430 |
< |
assertEquals(-1, list.lastIndexOf(three, 3)); |
| 426 |
> |
mustEqual(1, list.lastIndexOf(one, 1)); |
| 427 |
> |
mustEqual(1, list.lastIndexOf(one, 2)); |
| 428 |
> |
mustEqual(3, list.lastIndexOf(one, 3)); |
| 429 |
> |
mustEqual(3, list.lastIndexOf(one, 4)); |
| 430 |
> |
mustEqual(-1, list.lastIndexOf(three, 3)); |
| 431 |
|
} |
| 432 |
|
|
| 433 |
|
/** |
| 434 |
|
* listIterator traverses all elements |
| 435 |
|
*/ |
| 436 |
|
public void testListIterator1() { |
| 437 |
< |
List list = populatedList(SIZE); |
| 438 |
< |
ListIterator i = list.listIterator(); |
| 437 |
> |
List<Item> list = populatedList(SIZE); |
| 438 |
> |
ListIterator<? extends Item> i = list.listIterator(); |
| 439 |
|
int j; |
| 440 |
|
for (j = 0; i.hasNext(); j++) |
| 441 |
< |
assertEquals(j, i.next()); |
| 442 |
< |
assertEquals(SIZE, j); |
| 441 |
> |
mustEqual(j, i.next()); |
| 442 |
> |
mustEqual(SIZE, j); |
| 443 |
|
} |
| 444 |
|
|
| 445 |
|
/** |
| 446 |
|
* listIterator only returns those elements after the given index |
| 447 |
|
*/ |
| 448 |
|
public void testListIterator2() { |
| 449 |
< |
List list = populatedList(3); |
| 450 |
< |
ListIterator i = list.listIterator(1); |
| 449 |
> |
List<Item> list = populatedList(3); |
| 450 |
> |
ListIterator<? extends Item> i = list.listIterator(1); |
| 451 |
|
int j; |
| 452 |
|
for (j = 0; i.hasNext(); j++) |
| 453 |
< |
assertEquals(j + 1, i.next()); |
| 454 |
< |
assertEquals(2, j); |
| 453 |
> |
mustEqual(j + 1, i.next()); |
| 454 |
> |
mustEqual(2, j); |
| 455 |
|
} |
| 456 |
|
|
| 457 |
|
/** |
| 460 |
|
public void testRemove_int() { |
| 461 |
|
int SIZE = 3; |
| 462 |
|
for (int i = 0; i < SIZE; i++) { |
| 463 |
< |
List list = populatedList(SIZE); |
| 464 |
< |
assertEquals(i, list.remove(i)); |
| 465 |
< |
assertEquals(SIZE - 1, list.size()); |
| 466 |
< |
assertFalse(list.contains(new Integer(i))); |
| 463 |
> |
List<Item> list = populatedList(SIZE); |
| 464 |
> |
mustEqual(i, list.remove(i)); |
| 465 |
> |
mustEqual(SIZE - 1, list.size()); |
| 466 |
> |
mustNotContain(list, i); |
| 467 |
|
} |
| 468 |
|
} |
| 469 |
|
|
| 473 |
|
public void testRemove_Object() { |
| 474 |
|
int SIZE = 3; |
| 475 |
|
for (int i = 0; i < SIZE; i++) { |
| 476 |
< |
List list = populatedList(SIZE); |
| 477 |
< |
assertFalse(list.remove(new Integer(-42))); |
| 478 |
< |
assertTrue(list.remove(new Integer(i))); |
| 479 |
< |
assertEquals(SIZE - 1, list.size()); |
| 480 |
< |
assertFalse(list.contains(new Integer(i))); |
| 481 |
< |
} |
| 482 |
< |
CopyOnWriteArrayList x = new CopyOnWriteArrayList(Arrays.asList(4, 5, 6)); |
| 483 |
< |
assertTrue(x.remove(new Integer(6))); |
| 484 |
< |
assertEquals(x, Arrays.asList(4, 5)); |
| 485 |
< |
assertTrue(x.remove(new Integer(4))); |
| 486 |
< |
assertEquals(x, Arrays.asList(5)); |
| 487 |
< |
assertTrue(x.remove(new Integer(5))); |
| 488 |
< |
assertEquals(x, Arrays.asList()); |
| 489 |
< |
assertFalse(x.remove(new Integer(5))); |
| 476 |
> |
List<Item> list = populatedList(SIZE); |
| 477 |
> |
mustNotRemove(list, fortytwo); |
| 478 |
> |
mustRemove(list, i); |
| 479 |
> |
mustEqual(SIZE - 1, list.size()); |
| 480 |
> |
mustNotContain(list, i); |
| 481 |
> |
} |
| 482 |
> |
CopyOnWriteArrayList<Item> x = new CopyOnWriteArrayList<Item>(Arrays.asList(four, five, six)); |
| 483 |
> |
mustRemove(x, six); |
| 484 |
> |
mustEqual(x, Arrays.asList(four, five)); |
| 485 |
> |
mustRemove(x, four); |
| 486 |
> |
mustEqual(x, Arrays.asList(five)); |
| 487 |
> |
mustRemove(x, five); |
| 488 |
> |
mustEqual(x, Arrays.asList()); |
| 489 |
> |
mustNotRemove(x, five); |
| 490 |
|
} |
| 491 |
|
|
| 492 |
|
/** |
| 493 |
|
* removeAll removes all elements from the given collection |
| 494 |
|
*/ |
| 495 |
|
public void testRemoveAll() { |
| 496 |
< |
List list = populatedList(3); |
| 496 |
> |
List<Item> list = populatedList(3); |
| 497 |
|
assertTrue(list.removeAll(Arrays.asList(one, two))); |
| 498 |
< |
assertEquals(1, list.size()); |
| 498 |
> |
mustEqual(1, list.size()); |
| 499 |
|
assertFalse(list.removeAll(Arrays.asList(one, two))); |
| 500 |
< |
assertEquals(1, list.size()); |
| 500 |
> |
mustEqual(1, list.size()); |
| 501 |
|
} |
| 502 |
|
|
| 503 |
|
/** |
| 504 |
|
* set changes the element at the given index |
| 505 |
|
*/ |
| 506 |
|
public void testSet() { |
| 507 |
< |
List list = populatedList(3); |
| 508 |
< |
assertEquals(2, list.set(2, four)); |
| 509 |
< |
assertEquals(4, list.get(2)); |
| 507 |
> |
List<Item> list = populatedList(3); |
| 508 |
> |
mustEqual(2, list.set(2, four)); |
| 509 |
> |
mustEqual(4, list.get(2)); |
| 510 |
|
} |
| 511 |
|
|
| 512 |
|
/** |
| 513 |
|
* size returns the number of elements |
| 514 |
|
*/ |
| 515 |
|
public void testSize() { |
| 516 |
< |
List empty = new CopyOnWriteArrayList(); |
| 517 |
< |
assertEquals(0, empty.size()); |
| 518 |
< |
assertEquals(0, empty.subList(0, 0).size()); |
| 519 |
< |
|
| 520 |
< |
List full = populatedList(SIZE); |
| 521 |
< |
assertEquals(SIZE, full.size()); |
| 522 |
< |
assertEquals(0, full.subList(0, 0).size()); |
| 523 |
< |
assertEquals(0, full.subList(SIZE, SIZE).size()); |
| 516 |
> |
List<Item> empty = new CopyOnWriteArrayList<Item>(); |
| 517 |
> |
mustEqual(0, empty.size()); |
| 518 |
> |
mustEqual(0, empty.subList(0, 0).size()); |
| 519 |
> |
|
| 520 |
> |
List<Item> full = populatedList(SIZE); |
| 521 |
> |
mustEqual(SIZE, full.size()); |
| 522 |
> |
mustEqual(0, full.subList(0, 0).size()); |
| 523 |
> |
mustEqual(0, full.subList(SIZE, SIZE).size()); |
| 524 |
|
} |
| 525 |
|
|
| 526 |
|
/** |
| 528 |
|
* the list in insertion order |
| 529 |
|
*/ |
| 530 |
|
public void testToArray() { |
| 531 |
< |
Object[] a = new CopyOnWriteArrayList().toArray(); |
| 531 |
> |
Object[] a = new CopyOnWriteArrayList<Item>().toArray(); |
| 532 |
|
assertTrue(Arrays.equals(new Object[0], a)); |
| 533 |
|
assertSame(Object[].class, a.getClass()); |
| 534 |
|
|
| 535 |
< |
Integer[] elements = new Integer[SIZE]; |
| 536 |
< |
for (int i = 0; i < SIZE; i++) |
| 537 |
< |
elements[i] = i; |
| 535 |
> |
Item[] elements = seqItems(SIZE); |
| 536 |
|
shuffle(elements); |
| 537 |
< |
Collection<Integer> full = populatedList(elements); |
| 537 |
> |
Collection<Item> full = populatedList(elements); |
| 538 |
|
|
| 539 |
|
assertTrue(Arrays.equals(elements, full.toArray())); |
| 540 |
|
assertSame(Object[].class, full.toArray().getClass()); |
| 541 |
|
} |
| 542 |
|
|
| 543 |
|
/** |
| 544 |
< |
* toArray(Integer array) returns an Integer array containing all |
| 544 |
> |
* toArray(Item array) returns an Item array containing all |
| 545 |
|
* elements from the list in insertion order |
| 546 |
|
*/ |
| 547 |
|
public void testToArray2() { |
| 548 |
< |
Collection empty = new CopyOnWriteArrayList(); |
| 549 |
< |
Integer[] a; |
| 548 |
> |
Collection<Item> empty = new CopyOnWriteArrayList<Item>(); |
| 549 |
> |
Item[] a; |
| 550 |
|
|
| 551 |
< |
a = new Integer[0]; |
| 551 |
> |
a = new Item[0]; |
| 552 |
|
assertSame(a, empty.toArray(a)); |
| 553 |
|
|
| 554 |
< |
a = new Integer[SIZE / 2]; |
| 555 |
< |
Arrays.fill(a, 42); |
| 554 |
> |
a = new Item[SIZE / 2]; |
| 555 |
> |
Arrays.fill(a, fortytwo); |
| 556 |
|
assertSame(a, empty.toArray(a)); |
| 557 |
|
assertNull(a[0]); |
| 558 |
|
for (int i = 1; i < a.length; i++) |
| 559 |
< |
assertEquals(42, (int) a[i]); |
| 559 |
> |
mustEqual(42, a[i]); |
| 560 |
|
|
| 561 |
< |
Integer[] elements = new Integer[SIZE]; |
| 564 |
< |
for (int i = 0; i < SIZE; i++) |
| 565 |
< |
elements[i] = i; |
| 561 |
> |
Item[] elements = seqItems(SIZE); |
| 562 |
|
shuffle(elements); |
| 563 |
< |
Collection<Integer> full = populatedList(elements); |
| 563 |
> |
Collection<Item> full = populatedList(elements); |
| 564 |
|
|
| 565 |
< |
Arrays.fill(a, 42); |
| 565 |
> |
Arrays.fill(a, fortytwo); |
| 566 |
|
assertTrue(Arrays.equals(elements, full.toArray(a))); |
| 567 |
|
for (int i = 0; i < a.length; i++) |
| 568 |
< |
assertEquals(42, (int) a[i]); |
| 569 |
< |
assertSame(Integer[].class, full.toArray(a).getClass()); |
| 568 |
> |
mustEqual(42, a[i]); |
| 569 |
> |
assertSame(Item[].class, full.toArray(a).getClass()); |
| 570 |
|
|
| 571 |
< |
a = new Integer[SIZE]; |
| 572 |
< |
Arrays.fill(a, 42); |
| 571 |
> |
a = new Item[SIZE]; |
| 572 |
> |
Arrays.fill(a, fortytwo); |
| 573 |
|
assertSame(a, full.toArray(a)); |
| 574 |
|
assertTrue(Arrays.equals(elements, a)); |
| 575 |
|
|
| 576 |
< |
a = new Integer[2 * SIZE]; |
| 577 |
< |
Arrays.fill(a, 42); |
| 576 |
> |
a = new Item[2 * SIZE]; |
| 577 |
> |
Arrays.fill(a, fortytwo); |
| 578 |
|
assertSame(a, full.toArray(a)); |
| 579 |
|
assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE))); |
| 580 |
|
assertNull(a[SIZE]); |
| 581 |
|
for (int i = SIZE + 1; i < a.length; i++) |
| 582 |
< |
assertEquals(42, (int) a[i]); |
| 582 |
> |
mustEqual(42, a[i]); |
| 583 |
|
} |
| 584 |
|
|
| 585 |
|
/** |
| 586 |
|
* sublists contains elements at indexes offset from their base |
| 587 |
|
*/ |
| 588 |
|
public void testSubList() { |
| 589 |
< |
List a = populatedList(10); |
| 589 |
> |
List<Item> a = populatedList(10); |
| 590 |
|
assertTrue(a.subList(1,1).isEmpty()); |
| 591 |
|
for (int j = 0; j < 9; ++j) { |
| 592 |
|
for (int i = j ; i < 10; ++i) { |
| 593 |
< |
List b = a.subList(j,i); |
| 593 |
> |
List<Item> b = a.subList(j,i); |
| 594 |
|
for (int k = j; k < i; ++k) { |
| 595 |
< |
assertEquals(new Integer(k), b.get(k-j)); |
| 595 |
> |
mustEqual(itemFor(k), b.get(k-j)); |
| 596 |
|
} |
| 597 |
|
} |
| 598 |
|
} |
| 599 |
|
|
| 600 |
< |
List s = a.subList(2, 5); |
| 601 |
< |
assertEquals(3, s.size()); |
| 602 |
< |
s.set(2, m1); |
| 603 |
< |
assertEquals(a.get(4), m1); |
| 600 |
> |
List<Item> s = a.subList(2, 5); |
| 601 |
> |
mustEqual(3, s.size()); |
| 602 |
> |
s.set(2, minusOne); |
| 603 |
> |
mustEqual(a.get(4), minusOne); |
| 604 |
|
s.clear(); |
| 605 |
< |
assertEquals(7, a.size()); |
| 605 |
> |
mustEqual(7, a.size()); |
| 606 |
|
|
| 607 |
|
assertThrows( |
| 608 |
|
IndexOutOfBoundsException.class, |
| 609 |
|
() -> s.get(0), |
| 610 |
< |
() -> s.set(0, 42)); |
| 610 |
> |
() -> s.set(0, fortytwo)); |
| 611 |
|
} |
| 612 |
|
|
| 613 |
|
// Exception tests |
| 617 |
|
* can not store the objects inside the list |
| 618 |
|
*/ |
| 619 |
|
public void testToArray_ArrayStoreException() { |
| 620 |
< |
List list = new CopyOnWriteArrayList(); |
| 621 |
< |
// Integers are not auto-converted to Longs |
| 622 |
< |
list.add(86); |
| 623 |
< |
list.add(99); |
| 620 |
> |
List<Item> list = new CopyOnWriteArrayList<Item>(); |
| 621 |
> |
// Items are not auto-converted to Longs |
| 622 |
> |
list.add(eightysix); |
| 623 |
> |
list.add(ninetynine); |
| 624 |
|
assertThrows( |
| 625 |
|
ArrayStoreException.class, |
| 626 |
|
() -> list.toArray(new Long[0]), |
| 627 |
|
() -> list.toArray(new Long[5])); |
| 628 |
|
} |
| 629 |
|
|
| 630 |
+ |
@SuppressWarnings("unchecked") |
| 631 |
|
void testIndexOutOfBoundsException(List list) { |
| 632 |
|
int size = list.size(); |
| 633 |
|
assertThrows( |
| 667 |
|
*/ |
| 668 |
|
public void testIndexOutOfBoundsException() { |
| 669 |
|
ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
| 670 |
< |
List x = populatedList(rnd.nextInt(5)); |
| 670 |
> |
List<Item> x = populatedList(rnd.nextInt(5)); |
| 671 |
|
testIndexOutOfBoundsException(x); |
| 672 |
|
|
| 673 |
|
int start = rnd.nextInt(x.size() + 1); |
| 675 |
|
assertThrows( |
| 676 |
|
IndexOutOfBoundsException.class, |
| 677 |
|
() -> x.subList(start, start - 1)); |
| 678 |
< |
List subList = x.subList(start, end); |
| 678 |
> |
List<Item> subList = x.subList(start, end); |
| 679 |
|
testIndexOutOfBoundsException(x); |
| 680 |
|
} |
| 681 |
|
|
| 683 |
|
* a deserialized/reserialized list equals original |
| 684 |
|
*/ |
| 685 |
|
public void testSerialization() throws Exception { |
| 686 |
< |
List x = populatedList(SIZE); |
| 687 |
< |
List y = serialClone(x); |
| 686 |
> |
List<Item> x = populatedList(SIZE); |
| 687 |
> |
List<Item> y = serialClone(x); |
| 688 |
|
|
| 689 |
|
assertNotSame(x, y); |
| 690 |
< |
assertEquals(x.size(), y.size()); |
| 691 |
< |
assertEquals(x.toString(), y.toString()); |
| 690 |
> |
mustEqual(x.size(), y.size()); |
| 691 |
> |
mustEqual(x.toString(), y.toString()); |
| 692 |
|
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
| 693 |
< |
assertEquals(x, y); |
| 694 |
< |
assertEquals(y, x); |
| 693 |
> |
mustEqual(x, y); |
| 694 |
> |
mustEqual(y, x); |
| 695 |
|
while (!x.isEmpty()) { |
| 696 |
|
assertFalse(y.isEmpty()); |
| 697 |
< |
assertEquals(x.remove(0), y.remove(0)); |
| 697 |
> |
mustEqual(x.remove(0), y.remove(0)); |
| 698 |
|
} |
| 699 |
|
assertTrue(y.isEmpty()); |
| 700 |
|
} |
