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| 1 // Copyright 2013 Google Inc. All Rights Reserved. |
| 2 // |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 // you may not use this file except in compliance with the License. |
| 5 // You may obtain a copy of the License at |
| 6 // |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 // |
| 9 // Unless required by applicable law or agreed to in writing, software |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 // See the License for the specific language governing permissions and |
| 13 // limitations under the License. |
| 14 |
| 15 library quiver.collection.multimap_test; |
| 16 |
| 17 import 'package:quiver/collection.dart'; |
| 18 import 'package:test/test.dart'; |
| 19 |
| 20 void main() { |
| 21 group('Multimap', () { |
| 22 test('should be a list-backed multimap', () { |
| 23 var map = new Multimap(); |
| 24 expect(map is ListMultimap, true); |
| 25 }); |
| 26 }); |
| 27 |
| 28 group('Multimap asMap() view', () { |
| 29 var mmap; |
| 30 var map; |
| 31 setUp(() { |
| 32 mmap = new Multimap() |
| 33 ..add('k1', 'v1') |
| 34 ..add('k1', 'v2') |
| 35 ..add('k2', 'v3'); |
| 36 map = mmap.asMap(); |
| 37 }); |
| 38 |
| 39 test('operator[]= should throw UnsupportedError', () { |
| 40 expect(() => map['k1'] = [1, 2, 3], throwsUnsupportedError); |
| 41 }); |
| 42 |
| 43 test('containsKey() should return false for missing key', () { |
| 44 expect(map.containsKey('k3'), isFalse); |
| 45 }); |
| 46 |
| 47 test('containsKey() should return true for key in map', () { |
| 48 expect(map.containsKey('k1'), isTrue); |
| 49 }); |
| 50 |
| 51 test('containsValue() should return false for missing value', () { |
| 52 expect(map.containsValue('k3'), isFalse); |
| 53 }); |
| 54 |
| 55 test('containsValue() should return true for value in map', () { |
| 56 expect(map.containsValue('v1'), isTrue); |
| 57 }); |
| 58 |
| 59 test('forEach should iterate over all key-value pairs', () { |
| 60 var results = []; |
| 61 map.forEach((k, v) => results.add(new Pair(k, v))); |
| 62 expect(results, unorderedEquals([ |
| 63 new Pair('k1', ['v1', 'v2']), |
| 64 new Pair('k2', ['v3']) |
| 65 ])); |
| 66 }); |
| 67 |
| 68 test('isEmpty should return whether the map contains key-value pairs', () { |
| 69 expect(map.isEmpty, isFalse); |
| 70 expect(map.isNotEmpty, isTrue); |
| 71 expect(new Multimap().asMap().isEmpty, isTrue); |
| 72 expect(new Multimap().asMap().isNotEmpty, isFalse); |
| 73 }); |
| 74 |
| 75 test('length should return the number of key-value pairs', () { |
| 76 expect(new Multimap().asMap().length, equals(0)); |
| 77 expect(map.length, equals(2)); |
| 78 }); |
| 79 |
| 80 test('addAll(Map m) should throw UnsupportedError', () { |
| 81 expect(() => map.addAll({'k1': [1, 2, 3]}), throwsUnsupportedError); |
| 82 }); |
| 83 |
| 84 test('putIfAbsent() should throw UnsupportedError', () { |
| 85 var map = new Multimap().asMap(); |
| 86 expect(() => map.putIfAbsent('k1', () => [1]), throwsUnsupportedError); |
| 87 }); |
| 88 }); |
| 89 |
| 90 group('ListMultimap', () { |
| 91 test('should initialize empty', () { |
| 92 var map = new ListMultimap(); |
| 93 expect(map.isEmpty, true); |
| 94 expect(map.isNotEmpty, false); |
| 95 }); |
| 96 |
| 97 test('should not be empty after adding', () { |
| 98 var map = new ListMultimap<String, String>()..add('k', 'v'); |
| 99 expect(map.isEmpty, false); |
| 100 expect(map.isNotEmpty, true); |
| 101 }); |
| 102 |
| 103 test('should return the number of keys as length', () { |
| 104 var map = new ListMultimap<String, String>(); |
| 105 expect(map.length, 0); |
| 106 map |
| 107 ..add('k1', 'v1') |
| 108 ..add('k1', 'v2') |
| 109 ..add('k2', 'v3'); |
| 110 expect(map.length, 2); |
| 111 }); |
| 112 |
| 113 test('should return an empty iterable for unmapped keys', () { |
| 114 var map = new ListMultimap<String, String>(); |
| 115 expect(map['k1'], []); |
| 116 }); |
| 117 |
| 118 test('should support adding values for unmapped keys', () { |
| 119 var map = new ListMultimap<String, String>()..['k1'].add('v1'); |
| 120 expect(map['k1'], ['v1']); |
| 121 }); |
| 122 |
| 123 test('should support adding multiple values for unmapped keys', () { |
| 124 var map = new ListMultimap<String, String>()..['k1'].addAll(['v1', 'v2']); |
| 125 expect(map['k1'], ['v1', 'v2']); |
| 126 }); |
| 127 |
| 128 test('should support inserting values for unmapped keys', () { |
| 129 var map = new ListMultimap<String, String>()..['k1'].insert(0, 'v1'); |
| 130 expect(map['k1'], ['v1']); |
| 131 }); |
| 132 |
| 133 test('should support inserting multiple values for unmapped keys', () { |
| 134 var map = new ListMultimap<String, String>() |
| 135 ..['k1'].insertAll(0, ['v1', 'v2']); |
| 136 expect(map['k1'], ['v1', 'v2']); |
| 137 }); |
| 138 |
| 139 test('should support inserting multiple values for unmapped keys', () { |
| 140 var map = new ListMultimap<String, String>()..['k1'].length = 2; |
| 141 expect(map['k1'], [null, null]); |
| 142 }); |
| 143 |
| 144 test('should return unmapped iterables that stay in sync on add', () { |
| 145 var map = new ListMultimap<String, String>(); |
| 146 List values1 = map['k1']; |
| 147 List values2 = map['k1']; |
| 148 values1.add('v1'); |
| 149 expect(map['k1'], ['v1']); |
| 150 expect(values2, ['v1']); |
| 151 }); |
| 152 |
| 153 test('should return unmapped iterables that stay in sync on addAll', () { |
| 154 var map = new ListMultimap<String, String>(); |
| 155 List values1 = map['k1']; |
| 156 List values2 = map['k1']; |
| 157 values1.addAll(['v1', 'v2']); |
| 158 expect(map['k1'], ['v1', 'v2']); |
| 159 expect(values2, ['v1', 'v2']); |
| 160 }); |
| 161 |
| 162 test('should support adding duplicate values for a key', () { |
| 163 var map = new ListMultimap<String, String>() |
| 164 ..add('k', 'v1') |
| 165 ..add('k', 'v1'); |
| 166 expect(map['k'], ['v1', 'v1']); |
| 167 }); |
| 168 |
| 169 test('should support adding multiple keys', () { |
| 170 var map = new ListMultimap<String, String>() |
| 171 ..add('k1', 'v1') |
| 172 ..add('k1', 'v2') |
| 173 ..add('k2', 'v3'); |
| 174 expect(map['k1'], ['v1', 'v2']); |
| 175 expect(map['k2'], ['v3']); |
| 176 }); |
| 177 |
| 178 test('should support adding multiple values at once', () { |
| 179 var map = new ListMultimap<String, String>() |
| 180 ..addValues('k1', ['v1', 'v2']); |
| 181 expect(map['k1'], ['v1', 'v2']); |
| 182 }); |
| 183 |
| 184 test('should support adding multiple values at once for existing keys', () { |
| 185 var map = new ListMultimap<String, String>() |
| 186 ..add('k1', 'v1') |
| 187 ..addValues('k1', ['v1', 'v2']); |
| 188 expect(map['k1'], ['v1', 'v1', 'v2']); |
| 189 }); |
| 190 |
| 191 test('should support adding from another multimap', () { |
| 192 var from = new ListMultimap<String, String>() |
| 193 ..addValues('k1', ['v1', 'v2']) |
| 194 ..add('k2', 'v3'); |
| 195 var map = new ListMultimap<String, String>()..addAll(from); |
| 196 expect(map['k1'], ['v1', 'v2']); |
| 197 expect(map['k2'], ['v3']); |
| 198 }); |
| 199 |
| 200 test('should support adding from another multimap with existing keys', () { |
| 201 var from = new ListMultimap<String, String>() |
| 202 ..addValues('k1', ['v1', 'v2']) |
| 203 ..add('k2', 'v3'); |
| 204 var map = new ListMultimap<String, String>() |
| 205 ..add('k1', 'v0') |
| 206 ..add('k2', 'v3') |
| 207 ..addAll(from); |
| 208 expect(map['k1'], ['v0', 'v1', 'v2']); |
| 209 expect(map['k2'], ['v3', 'v3']); |
| 210 }); |
| 211 |
| 212 test('should return its keys', () { |
| 213 var map = new ListMultimap<String, String>() |
| 214 ..add('k1', 'v1') |
| 215 ..add('k1', 'v2') |
| 216 ..add('k2', 'v3'); |
| 217 expect(map.keys, unorderedEquals(['k1', 'k2'])); |
| 218 }); |
| 219 |
| 220 test('should return its values', () { |
| 221 var map = new ListMultimap<String, String>() |
| 222 ..add('k1', 'v1') |
| 223 ..add('k1', 'v2') |
| 224 ..add('k2', 'v3'); |
| 225 expect(map.values, unorderedEquals(['v1', 'v2', 'v3'])); |
| 226 }); |
| 227 |
| 228 test('should support duplicate values', () { |
| 229 var map = new ListMultimap<String, String>() |
| 230 ..add('k1', 'v1') |
| 231 ..add('k1', 'v2') |
| 232 ..add('k2', 'v1'); |
| 233 expect(map.values, unorderedEquals(['v1', 'v2', 'v1'])); |
| 234 }); |
| 235 |
| 236 test('should return an ordered list of values', () { |
| 237 var map = new ListMultimap<String, String>() |
| 238 ..add('k', 'v1') |
| 239 ..add('k', 'v2'); |
| 240 expect(map['k'], ['v1', 'v2']); |
| 241 }); |
| 242 |
| 243 test('should reflect changes to underlying list', () { |
| 244 var map = new ListMultimap<String, String>() |
| 245 ..add('k', 'v1') |
| 246 ..add('k', 'v2'); |
| 247 map['k'].add('v3'); |
| 248 map['k'].remove('v2'); |
| 249 expect(map['k'], ['v1', 'v3']); |
| 250 }); |
| 251 |
| 252 test('should return whether it contains a key', () { |
| 253 var map = new ListMultimap<String, String>() |
| 254 ..add('k', 'v1') |
| 255 ..add('k', 'v2'); |
| 256 expect(map.containsKey('j'), false); |
| 257 expect(map.containsKey('k'), true); |
| 258 }); |
| 259 |
| 260 test('should return whether it contains a value', () { |
| 261 var map = new ListMultimap<String, String>() |
| 262 ..add('k', 'v1') |
| 263 ..add('k', 'v2'); |
| 264 expect(map.containsValue('v0'), false); |
| 265 expect(map.containsValue('v1'), true); |
| 266 }); |
| 267 |
| 268 test('should remove specified key-value associations', () { |
| 269 var map = new ListMultimap<String, String>() |
| 270 ..add('k1', 'v1') |
| 271 ..add('k1', 'v2') |
| 272 ..add('k2', 'v3'); |
| 273 expect(map.remove('k1', 'v0'), false); |
| 274 expect(map.remove('k1', 'v1'), true); |
| 275 expect(map['k1'], ['v2']); |
| 276 expect(map.containsKey('k2'), true); |
| 277 }); |
| 278 |
| 279 test('should remove a key when all associated values are removed', () { |
| 280 var map = new ListMultimap<String, String>() |
| 281 ..add('k1', 'v1') |
| 282 ..remove('k1', 'v1'); |
| 283 expect(map.containsKey('k1'), false); |
| 284 }); |
| 285 |
| 286 test('should remove a key when all associated values are removed ' |
| 287 'via the underlying iterable.remove', () { |
| 288 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 289 map['k1'].remove('v1'); |
| 290 expect(map.containsKey('k1'), false); |
| 291 }); |
| 292 |
| 293 test('should remove a key when all associated values are removed ' |
| 294 'via the underlying iterable.removeAt', () { |
| 295 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 296 map['k1'].removeAt(0); |
| 297 expect(map.containsKey('k1'), false); |
| 298 }); |
| 299 |
| 300 test('should remove a key when all associated values are removed ' |
| 301 'via the underlying iterable.removeAt', () { |
| 302 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 303 map['k1'].removeLast(); |
| 304 expect(map.containsKey('k1'), false); |
| 305 }); |
| 306 |
| 307 test('should remove a key when all associated values are removed ' |
| 308 'via the underlying iterable.removeRange', () { |
| 309 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 310 map['k1'].removeRange(0, 1); |
| 311 expect(map.containsKey('k1'), false); |
| 312 }); |
| 313 |
| 314 test('should remove a key when all associated values are removed ' |
| 315 'via the underlying iterable.removeWhere', () { |
| 316 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 317 map['k1'].removeWhere((_) => true); |
| 318 expect(map.containsKey('k1'), false); |
| 319 }); |
| 320 |
| 321 test('should remove a key when all associated values are removed ' |
| 322 'via the underlying iterable.replaceRange', () { |
| 323 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 324 map['k1'].replaceRange(0, 1, []); |
| 325 expect(map.containsKey('k1'), false); |
| 326 }); |
| 327 |
| 328 test('should remove a key when all associated values are removed ' |
| 329 'via the underlying iterable.retainWhere', () { |
| 330 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 331 map['k1'].retainWhere((_) => false); |
| 332 expect(map.containsKey('k1'), false); |
| 333 }); |
| 334 |
| 335 test('should remove a key when all associated values are removed ' |
| 336 'via the underlying iterable.clear', () { |
| 337 var map = new ListMultimap<String, String>() |
| 338 ..add('k1', 'v1') |
| 339 ..add('k1', 'v2'); |
| 340 map['k1'].clear(); |
| 341 expect(map.containsKey('k1'), false); |
| 342 }); |
| 343 |
| 344 test('should remove all values for a key', () { |
| 345 var map = new ListMultimap<String, String>() |
| 346 ..add('k1', 'v1') |
| 347 ..add('k1', 'v2') |
| 348 ..add('k2', 'v3'); |
| 349 expect(map.removeAll('k1'), ['v1', 'v2']); |
| 350 expect(map.containsKey('k1'), false); |
| 351 expect(map.containsKey('k2'), true); |
| 352 }); |
| 353 |
| 354 test('should clear underlying iterable on remove', () { |
| 355 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 356 List values = map['k1']; |
| 357 expect(map.removeAll('k1'), ['v1']); |
| 358 expect(values, []); |
| 359 }); |
| 360 |
| 361 test('should return an empty iterable on removeAll of unmapped key', () { |
| 362 var map = new ListMultimap<String, String>(); |
| 363 var removed = map.removeAll('k1'); |
| 364 expect(removed, []); |
| 365 }); |
| 366 |
| 367 test('should be uncoupled from the iterable returned by removeAll', () { |
| 368 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 369 var removed = map.removeAll('k1'); |
| 370 removed.add('v2'); |
| 371 map.add('k1', 'v3'); |
| 372 expect(removed, ['v1', 'v2']); |
| 373 expect(map['k1'], ['v3']); |
| 374 }); |
| 375 |
| 376 test('should clear the map', () { |
| 377 var map = new ListMultimap<String, String>() |
| 378 ..add('k1', 'v1') |
| 379 ..add('k1', 'v2') |
| 380 ..add('k2', 'v3') |
| 381 ..clear(); |
| 382 expect(map.isEmpty, true); |
| 383 expect(map.containsKey('k1'), false); |
| 384 expect(map.containsKey('k2'), false); |
| 385 }); |
| 386 |
| 387 test('should clear underlying iterables on clear', () { |
| 388 var map = new ListMultimap<String, String>()..add('k1', 'v1'); |
| 389 List values = map['k1']; |
| 390 map.clear(); |
| 391 expect(values, []); |
| 392 }); |
| 393 |
| 394 test('should not add mappings on lookup of unmapped keys', () { |
| 395 var map = new ListMultimap<String, String>()..['k1']; |
| 396 expect(map.containsKey('k1'), false); |
| 397 }); |
| 398 |
| 399 test('should not remove mappings on clearing mapped values', () { |
| 400 var map = new ListMultimap<String, String>() |
| 401 ..add('k1', 'v1') |
| 402 ..['v1'].clear(); |
| 403 expect(map.containsKey('k1'), true); |
| 404 }); |
| 405 |
| 406 test('should return a map view', () { |
| 407 var mmap = new ListMultimap<String, String>() |
| 408 ..add('k1', 'v1') |
| 409 ..add('k1', 'v2') |
| 410 ..add('k2', 'v3'); |
| 411 Map map = mmap.asMap(); |
| 412 expect(map.keys, unorderedEquals(['k1', 'k2'])); |
| 413 expect(map.values, hasLength(2)); |
| 414 expect(map.values, anyElement(unorderedEquals(['v1', 'v2']))); |
| 415 expect(map.values, anyElement(unorderedEquals(['v3']))); |
| 416 expect(map['k1'], ['v1', 'v2']); |
| 417 expect(map['k2'], ['v3']); |
| 418 }); |
| 419 |
| 420 test('should return an empty iterable on map view unmapped key', () { |
| 421 Map map = new ListMultimap<String, String>().asMap(); |
| 422 expect(map['k1'], []); |
| 423 }); |
| 424 |
| 425 test('should allow addition via unmapped key lookup on map view', () { |
| 426 var mmap = new ListMultimap<String, String>(); |
| 427 Map map = mmap.asMap(); |
| 428 map['k1'].add('v1'); |
| 429 map['k2'].addAll(['v1', 'v2']); |
| 430 expect(mmap['k1'], ['v1']); |
| 431 expect(mmap['k2'], ['v1', 'v2']); |
| 432 }); |
| 433 |
| 434 test('should reflect additions to iterables returned by map view', () { |
| 435 var mmap = new ListMultimap<String, String>() |
| 436 ..add('k1', 'v1') |
| 437 ..add('k1', 'v2'); |
| 438 Map map = mmap.asMap(); |
| 439 map['k1'].add('v3'); |
| 440 expect(mmap['k1'], ['v1', 'v2', 'v3']); |
| 441 }); |
| 442 |
| 443 test('should reflect removals of keys in returned map view', () { |
| 444 var mmap = new ListMultimap<String, String>() |
| 445 ..add('k1', 'v1') |
| 446 ..add('k1', 'v2'); |
| 447 Map map = mmap.asMap(); |
| 448 map.remove('k1'); |
| 449 expect(mmap.containsKey('k1'), false); |
| 450 }); |
| 451 |
| 452 test('should reflect clearing of returned map view', () { |
| 453 var mmap = new ListMultimap<String, String>() |
| 454 ..add('k1', 'v1') |
| 455 ..add('k1', 'v2') |
| 456 ..add('k2', 'v3'); |
| 457 Map map = mmap.asMap(); |
| 458 map.clear(); |
| 459 expect(mmap.isEmpty, true); |
| 460 }); |
| 461 |
| 462 test('should support iteration over all {key, value} pairs', () { |
| 463 Set s = new Set(); |
| 464 new ListMultimap<String, String>() |
| 465 ..add('k1', 'v1') |
| 466 ..add('k1', 'v2') |
| 467 ..add('k2', 'v3') |
| 468 ..forEach((k, v) => s.add(new Pair(k, v))); |
| 469 expect(s, unorderedEquals( |
| 470 [new Pair('k1', 'v1'), new Pair('k1', 'v2'), new Pair('k2', 'v3')])); |
| 471 }); |
| 472 |
| 473 test('should support iteration over all {key, Iterable<value>} pairs', () { |
| 474 Map map = new Map(); |
| 475 var mmap = new ListMultimap<String, String>() |
| 476 ..add('k1', 'v1') |
| 477 ..add('k1', 'v2') |
| 478 ..add('k2', 'v3') |
| 479 ..forEachKey((k, v) => map[k] = v); |
| 480 expect(map.length, mmap.length); |
| 481 expect(map['k1'], ['v1', 'v2']); |
| 482 expect(map['k2'], ['v3']); |
| 483 }); |
| 484 |
| 485 test( |
| 486 'should support operations on empty map views without breaking delegate
synchronization', |
| 487 () { |
| 488 var mmap = new ListMultimap<String, String>(); |
| 489 List x = mmap['k1']; |
| 490 List y = mmap['k1']; |
| 491 List z = mmap['k1']; |
| 492 List w = mmap['k1']; |
| 493 mmap['k1'].add('v1'); |
| 494 expect(mmap['k1'], ['v1']); |
| 495 x.add('v2'); |
| 496 expect(mmap['k1'], ['v1', 'v2']); |
| 497 y.addAll(['v3', 'v4']); |
| 498 expect(mmap['k1'], ['v1', 'v2', 'v3', 'v4']); |
| 499 z.insert(0, 'v0'); |
| 500 expect(mmap['k1'], ['v0', 'v1', 'v2', 'v3', 'v4']); |
| 501 w.insertAll(5, ['v5', 'v6']); |
| 502 expect(mmap['k1'], ['v0', 'v1', 'v2', 'v3', 'v4', 'v5', 'v6']); |
| 503 }); |
| 504 }); |
| 505 |
| 506 group('SetMultimap', () { |
| 507 test('should initialize empty', () { |
| 508 var map = new SetMultimap<String, String>(); |
| 509 expect(map.isEmpty, true); |
| 510 expect(map.isNotEmpty, false); |
| 511 }); |
| 512 |
| 513 test('should not be empty after adding', () { |
| 514 var map = new SetMultimap<String, String>()..add('k', 'v'); |
| 515 expect(map.isEmpty, false); |
| 516 expect(map.isNotEmpty, true); |
| 517 }); |
| 518 |
| 519 test('should return the number of keys as length', () { |
| 520 var map = new SetMultimap<String, String>(); |
| 521 expect(map.length, 0); |
| 522 map |
| 523 ..add('k1', 'v1') |
| 524 ..add('k1', 'v2') |
| 525 ..add('k2', 'v3'); |
| 526 expect(map.length, 2); |
| 527 }); |
| 528 |
| 529 test('should return an empty iterable for unmapped keys', () { |
| 530 var map = new SetMultimap<String, String>(); |
| 531 expect(map['k1'], []); |
| 532 }); |
| 533 |
| 534 test('should support adding values for unmapped keys', () { |
| 535 var map = new SetMultimap<String, String>()..['k1'].add('v1'); |
| 536 expect(map['k1'], ['v1']); |
| 537 }); |
| 538 |
| 539 test('should support adding multiple values for unmapped keys', () { |
| 540 var map = new SetMultimap<String, String>()..['k1'].addAll(['v1', 'v2']); |
| 541 expect(map['k1'], unorderedEquals(['v1', 'v2'])); |
| 542 }); |
| 543 |
| 544 test('should return unmapped iterables that stay in sync on add', () { |
| 545 var map = new SetMultimap<String, String>(); |
| 546 Set values1 = map['k1']; |
| 547 Set values2 = map['k1']; |
| 548 values1.add('v1'); |
| 549 expect(map['k1'], ['v1']); |
| 550 expect(values2, ['v1']); |
| 551 }); |
| 552 |
| 553 test('should return unmapped iterables that stay in sync on addAll', () { |
| 554 var map = new SetMultimap<String, String>(); |
| 555 Set values1 = map['k1']; |
| 556 Set values2 = map['k1']; |
| 557 values1.addAll(['v1', 'v2']); |
| 558 expect(map['k1'], unorderedEquals(['v1', 'v2'])); |
| 559 expect(values2, unorderedEquals(['v1', 'v2'])); |
| 560 }); |
| 561 |
| 562 test('should not support adding duplicate values for a key', () { |
| 563 var map = new SetMultimap<String, String>() |
| 564 ..add('k', 'v1') |
| 565 ..add('k', 'v1'); |
| 566 expect(map['k'], ['v1']); |
| 567 }); |
| 568 |
| 569 test('should support adding multiple keys', () { |
| 570 var map = new SetMultimap<String, String>() |
| 571 ..add('k1', 'v1') |
| 572 ..add('k1', 'v2') |
| 573 ..add('k2', 'v3'); |
| 574 expect(map['k1'], unorderedEquals(['v1', 'v2'])); |
| 575 expect(map['k2'], ['v3']); |
| 576 }); |
| 577 |
| 578 test('should support adding multiple values at once', () { |
| 579 var map = new SetMultimap<String, String>() |
| 580 ..addValues('k1', ['v1', 'v2']); |
| 581 expect(map['k1'], ['v1', 'v2']); |
| 582 }); |
| 583 |
| 584 test('should support adding multiple values at once for existing keys', () { |
| 585 var map = new SetMultimap<String, String>() |
| 586 ..add('k1', 'v0') |
| 587 ..addValues('k1', ['v1', 'v2']); |
| 588 expect(map['k1'], unorderedEquals(['v0', 'v1', 'v2'])); |
| 589 }); |
| 590 |
| 591 test('should support adding multiple values for existing (key,value)', () { |
| 592 var map = new SetMultimap<String, String>() |
| 593 ..add('k1', 'v1') |
| 594 ..addValues('k1', ['v1', 'v2']); |
| 595 expect(map['k1'], unorderedEquals(['v1', 'v2'])); |
| 596 }); |
| 597 |
| 598 test('should support adding from another multimap', () { |
| 599 var from = new SetMultimap<String, String>() |
| 600 ..addValues('k1', ['v1', 'v2']) |
| 601 ..add('k2', 'v3'); |
| 602 var map = new SetMultimap<String, String>()..addAll(from); |
| 603 expect(map['k1'], unorderedEquals(['v1', 'v2'])); |
| 604 expect(map['k2'], ['v3']); |
| 605 }); |
| 606 |
| 607 test('should support adding from another multimap with existing keys', () { |
| 608 var from = new SetMultimap<String, String>() |
| 609 ..addValues('k1', ['v1', 'v2']) |
| 610 ..add('k2', 'v3'); |
| 611 var map = new SetMultimap<String, String>() |
| 612 ..add('k1', 'v0') |
| 613 ..add('k2', 'v3') |
| 614 ..addAll(from); |
| 615 expect(map['k1'], unorderedEquals(['v0', 'v1', 'v2'])); |
| 616 expect(map['k2'], ['v3']); |
| 617 }); |
| 618 |
| 619 test('should return its keys', () { |
| 620 var map = new SetMultimap<String, String>() |
| 621 ..add('k1', 'v1') |
| 622 ..add('k1', 'v2') |
| 623 ..add('k2', 'v3'); |
| 624 expect(map.keys, unorderedEquals(['k1', 'k2'])); |
| 625 }); |
| 626 |
| 627 test('should return its values', () { |
| 628 var map = new SetMultimap<String, String>() |
| 629 ..add('k1', 'v1') |
| 630 ..add('k1', 'v2') |
| 631 ..add('k2', 'v3'); |
| 632 expect(map.values, unorderedEquals(['v1', 'v2', 'v3'])); |
| 633 }); |
| 634 |
| 635 test('should support duplicate values', () { |
| 636 var map = new SetMultimap<String, String>() |
| 637 ..add('k1', 'v1') |
| 638 ..add('k1', 'v2') |
| 639 ..add('k2', 'v1'); |
| 640 expect(map.values, unorderedEquals(['v1', 'v2', 'v1'])); |
| 641 }); |
| 642 |
| 643 test('should return an ordered list of values', () { |
| 644 var map = new SetMultimap<String, String>() |
| 645 ..add('k', 'v1') |
| 646 ..add('k', 'v2'); |
| 647 expect(map['k'], unorderedEquals(['v1', 'v2'])); |
| 648 }); |
| 649 |
| 650 test('should reflect changes to underlying set', () { |
| 651 var map = new SetMultimap<String, String>() |
| 652 ..add('k', 'v1') |
| 653 ..add('k', 'v2'); |
| 654 map['k'].add('v3'); |
| 655 map['k'].remove('v2'); |
| 656 expect(map['k'], unorderedEquals(['v1', 'v3'])); |
| 657 }); |
| 658 |
| 659 test('should return whether it contains a key', () { |
| 660 var map = new SetMultimap<String, String>() |
| 661 ..add('k', 'v1') |
| 662 ..add('k', 'v2'); |
| 663 expect(map.containsKey('j'), false); |
| 664 expect(map.containsKey('k'), true); |
| 665 }); |
| 666 |
| 667 test('should return whether it contains a value', () { |
| 668 var map = new SetMultimap<String, String>() |
| 669 ..add('k', 'v1') |
| 670 ..add('k', 'v2'); |
| 671 expect(map.containsValue('v0'), false); |
| 672 expect(map.containsValue('v1'), true); |
| 673 }); |
| 674 |
| 675 test('should remove specified key-value associations', () { |
| 676 var map = new SetMultimap<String, String>() |
| 677 ..add('k1', 'v1') |
| 678 ..add('k1', 'v2') |
| 679 ..add('k2', 'v3'); |
| 680 expect(map.remove('k1', 'v0'), false); |
| 681 expect(map.remove('k1', 'v1'), true); |
| 682 expect(map['k1'], ['v2']); |
| 683 expect(map.containsKey('k2'), true); |
| 684 }); |
| 685 |
| 686 test('should remove a key when all associated values are removed', () { |
| 687 var map = new SetMultimap<String, String>() |
| 688 ..add('k1', 'v1') |
| 689 ..remove('k1', 'v1'); |
| 690 expect(map.containsKey('k1'), false); |
| 691 }); |
| 692 |
| 693 test('should remove a key when all associated values are removed ' |
| 694 'via the underlying iterable.remove', () { |
| 695 var map = new SetMultimap<String, String>()..add('k1', 'v1'); |
| 696 map['k1'].remove('v1'); |
| 697 expect(map.containsKey('k1'), false); |
| 698 }); |
| 699 |
| 700 test('should remove a key when all associated values are removed ' |
| 701 'via the underlying iterable.removeAll', () { |
| 702 var map = new SetMultimap<String, String>() |
| 703 ..add('k1', 'v1') |
| 704 ..add('k1', 'v2'); |
| 705 map['k1'].removeAll(['v1', 'v2']); |
| 706 expect(map.containsKey('k1'), false); |
| 707 }); |
| 708 |
| 709 test('should remove a key when all associated values are removed ' |
| 710 'via the underlying iterable.removeWhere', () { |
| 711 var map = new SetMultimap<String, String>()..add('k1', 'v1'); |
| 712 map['k1'].removeWhere((_) => true); |
| 713 expect(map.containsKey('k1'), false); |
| 714 }); |
| 715 |
| 716 test('should remove a key when all associated values are removed ' |
| 717 'via the underlying iterable.retainAll', () { |
| 718 var map = new SetMultimap<String, String>()..add('k1', 'v1'); |
| 719 map['k1'].retainAll([]); |
| 720 expect(map.containsKey('k1'), false); |
| 721 }); |
| 722 |
| 723 test('should remove a key when all associated values are removed ' |
| 724 'via the underlying iterable.retainWhere', () { |
| 725 var map = new SetMultimap<String, String>()..add('k1', 'v1'); |
| 726 map['k1'].retainWhere((_) => false); |
| 727 expect(map.containsKey('k1'), false); |
| 728 }); |
| 729 |
| 730 test('should remove a key when all associated values are removed ' |
| 731 'via the underlying iterable.clear', () { |
| 732 var map = new SetMultimap<String, String>()..add('k1', 'v1'); |
| 733 map['k1'].clear(); |
| 734 expect(map.containsKey('k1'), false); |
| 735 }); |
| 736 |
| 737 test('should remove all values for a key', () { |
| 738 var map = new SetMultimap<String, String>() |
| 739 ..add('k1', 'v1') |
| 740 ..add('k1', 'v2') |
| 741 ..add('k2', 'v3'); |
| 742 expect(map.removeAll('k1'), unorderedEquals(['v1', 'v2'])); |
| 743 expect(map.containsKey('k1'), false); |
| 744 expect(map.containsKey('k2'), true); |
| 745 }); |
| 746 |
| 747 test('should clear underlying iterable on remove', () { |
| 748 var map = new SetMultimap<String, String>()..add('k1', 'v1'); |
| 749 Set values = map['k1']; |
| 750 expect(map.removeAll('k1'), ['v1']); |
| 751 expect(values, []); |
| 752 }); |
| 753 |
| 754 test('should return an empty iterable on removeAll of unmapped key', () { |
| 755 var map = new SetMultimap<String, String>(); |
| 756 var removed = map.removeAll('k1'); |
| 757 expect(removed, []); |
| 758 }); |
| 759 |
| 760 test('should be uncoupled from the iterable returned by removeAll', () { |
| 761 var map = new SetMultimap<String, String>()..add('k1', 'v1'); |
| 762 var removed = map.removeAll('k1'); |
| 763 removed.add('v2'); |
| 764 map.add('k1', 'v3'); |
| 765 expect(removed, unorderedEquals(['v1', 'v2'])); |
| 766 expect(map['k1'], ['v3']); |
| 767 }); |
| 768 |
| 769 test('should clear the map', () { |
| 770 var map = new SetMultimap<String, String>() |
| 771 ..add('k1', 'v1') |
| 772 ..add('k1', 'v2') |
| 773 ..add('k2', 'v3') |
| 774 ..clear(); |
| 775 expect(map.isEmpty, true); |
| 776 expect(map.containsKey('k1'), false); |
| 777 expect(map.containsKey('k2'), false); |
| 778 }); |
| 779 |
| 780 test('should clear underlying iterables on clear', () { |
| 781 var map = new SetMultimap<String, String>()..add('k1', 'v1'); |
| 782 Set values = map['k1']; |
| 783 map.clear(); |
| 784 expect(values, []); |
| 785 }); |
| 786 |
| 787 test('should not add mappings on lookup of unmapped keys', () { |
| 788 var map = new SetMultimap<String, String>()..['k1']; |
| 789 expect(map.containsKey('k1'), false); |
| 790 }); |
| 791 |
| 792 test('should not remove mappings on clearing mapped values', () { |
| 793 var map = new SetMultimap<String, String>() |
| 794 ..add('k1', 'v1') |
| 795 ..['v1'].clear(); |
| 796 expect(map.containsKey('k1'), true); |
| 797 }); |
| 798 |
| 799 test('should return a map view', () { |
| 800 var mmap = new SetMultimap<String, String>() |
| 801 ..add('k1', 'v1') |
| 802 ..add('k1', 'v2') |
| 803 ..add('k2', 'v3'); |
| 804 Map map = mmap.asMap(); |
| 805 expect(map.keys, unorderedEquals(['k1', 'k2'])); |
| 806 expect(map['k1'], ['v1', 'v2']); |
| 807 expect(map['k2'], ['v3']); |
| 808 }); |
| 809 |
| 810 test('should return an empty iterable on map view unmapped key', () { |
| 811 Map map = new SetMultimap<String, String>().asMap(); |
| 812 expect(map['k1'], []); |
| 813 }); |
| 814 |
| 815 test('should allow addition via unmapped key lookup on map view', () { |
| 816 var mmap = new SetMultimap<String, String>(); |
| 817 Map map = mmap.asMap(); |
| 818 map['k1'].add('v1'); |
| 819 map['k2'].addAll(['v1', 'v2']); |
| 820 expect(mmap['k1'], ['v1']); |
| 821 expect(mmap['k2'], unorderedEquals(['v1', 'v2'])); |
| 822 }); |
| 823 |
| 824 test('should reflect additions to iterables returned by map view', () { |
| 825 var mmap = new SetMultimap<String, String>() |
| 826 ..add('k1', 'v1') |
| 827 ..add('k1', 'v2'); |
| 828 Map map = mmap.asMap(); |
| 829 map['k1'].add('v3'); |
| 830 expect(mmap['k1'], unorderedEquals(['v1', 'v2', 'v3'])); |
| 831 }); |
| 832 |
| 833 test('should reflect additions to iterables returned by map view', () { |
| 834 var mmap = new SetMultimap<String, String>() |
| 835 ..add('k1', 'v1') |
| 836 ..add('k1', 'v2'); |
| 837 Map map = mmap.asMap(); |
| 838 map['k1'].add('v3'); |
| 839 expect(mmap['k1'], unorderedEquals(['v1', 'v2', 'v3'])); |
| 840 }); |
| 841 |
| 842 test('should reflect removals of keys in returned map view', () { |
| 843 var mmap = new SetMultimap<String, String>() |
| 844 ..add('k1', 'v1') |
| 845 ..add('k1', 'v2'); |
| 846 Map map = mmap.asMap(); |
| 847 map.remove('k1'); |
| 848 expect(mmap.containsKey('k1'), false); |
| 849 }); |
| 850 |
| 851 test('should reflect clearing of returned map view', () { |
| 852 var mmap = new SetMultimap<String, String>() |
| 853 ..add('k1', 'v1') |
| 854 ..add('k1', 'v2') |
| 855 ..add('k2', 'v3'); |
| 856 Map map = mmap.asMap(); |
| 857 map.clear(); |
| 858 expect(mmap.isEmpty, true); |
| 859 }); |
| 860 |
| 861 test('should support iteration over all {key, value} pairs', () { |
| 862 Set s = new Set(); |
| 863 new SetMultimap<String, String>() |
| 864 ..add('k1', 'v1') |
| 865 ..add('k1', 'v2') |
| 866 ..add('k2', 'v3') |
| 867 ..forEach((k, v) => s.add(new Pair(k, v))); |
| 868 expect(s, unorderedEquals( |
| 869 [new Pair('k1', 'v1'), new Pair('k1', 'v2'), new Pair('k2', 'v3')])); |
| 870 }); |
| 871 |
| 872 test('should support iteration over all {key, Iterable<value>} pairs', () { |
| 873 Map map = new Map(); |
| 874 var mmap = new SetMultimap<String, String>() |
| 875 ..add('k1', 'v1') |
| 876 ..add('k1', 'v2') |
| 877 ..add('k2', 'v3') |
| 878 ..forEachKey((k, v) => map[k] = v); |
| 879 expect(map.length, mmap.length); |
| 880 expect(map['k1'], unorderedEquals(['v1', 'v2'])); |
| 881 expect(map['k2'], unorderedEquals(['v3'])); |
| 882 }); |
| 883 |
| 884 test('should support operations on empty map views without breaking ' |
| 885 'delegate synchronization', () { |
| 886 var mmap = new SetMultimap<String, String>(); |
| 887 Set x = mmap['k1']; |
| 888 Set y = mmap['k1']; |
| 889 mmap['k1'].add('v0'); |
| 890 x.add('v1'); |
| 891 y.addAll(['v2', 'v3']); |
| 892 expect(mmap['k1'], unorderedEquals(['v0', 'v1', 'v2', 'v3'])); |
| 893 }); |
| 894 }); |
| 895 } |
| 896 |
| 897 class Pair { |
| 898 final x; |
| 899 final y; |
| 900 Pair(this.x, this.y); |
| 901 bool operator ==(Pair other) { |
| 902 if (x != other.x) return false; |
| 903 return equals(y).matches(other.y, {}); |
| 904 } |
| 905 String toString() => "($x, $y)"; |
| 906 } |
| OLD | NEW |
|---|
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