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| 1 @Injectables(const [ | |
| 2 ClassOne, | |
| 3 CircularA, | |
| 4 CircularB, | |
| 5 MultipleConstructors, | |
| 6 NumDependency, | |
| 7 IntDependency, | |
| 8 DoubleDependency, | |
| 9 BoolDependency, | |
| 10 StringDependency | |
| 11 ]) | |
| 12 library di.tests; | |
| 13 | |
| 14 import 'fixed-unittest.dart'; | |
| 15 import 'package:di/di.dart'; | |
| 16 import 'package:di/dynamic_injector.dart'; | |
| 17 import 'package:di/static_injector.dart'; | |
| 18 import 'package:di/annotations.dart'; | |
| 19 | |
| 20 // Generated file. Run ../test_tf_gen.sh. | |
| 21 import 'type_factories_gen.dart' as type_factories_gen; | |
| 22 | |
| 23 /** | |
| 24 * Annotation used to mark classes for which static type factory must be | |
| 25 * generated. For testing purposes not all classes are marked with this | |
| 26 * annotation, some classes are included in @Injectables at the top. | |
| 27 */ | |
| 28 class Injectable { | |
| 29 const Injectable(); | |
| 30 } | |
| 31 | |
| 32 // just some classes for testing | |
| 33 @Injectable() | |
| 34 class Engine { | |
| 35 final String id = 'v8-id'; | |
| 36 } | |
| 37 | |
| 38 @Injectable() | |
| 39 class MockEngine implements Engine { | |
| 40 final String id = 'mock-id'; | |
| 41 } | |
| 42 | |
| 43 @Injectable() | |
| 44 class MockEngine2 implements Engine { | |
| 45 String id = 'mock-id-2'; | |
| 46 } | |
| 47 | |
| 48 class HiddenConstructor { | |
| 49 HiddenConstructor._(); | |
| 50 } | |
| 51 | |
| 52 @Injectable() | |
| 53 class Car { | |
| 54 Engine engine; | |
| 55 Injector injector; | |
| 56 | |
| 57 Car(this.engine, this.injector); | |
| 58 } | |
| 59 | |
| 60 class Lemon { | |
| 61 final engine; | |
| 62 final Injector injector; | |
| 63 | |
| 64 Lemon(this.engine, this.injector); | |
| 65 } | |
| 66 | |
| 67 class NumDependency { | |
| 68 NumDependency(num value) {} | |
| 69 } | |
| 70 | |
| 71 class IntDependency { | |
| 72 IntDependency(int value) {} | |
| 73 } | |
| 74 | |
| 75 class DoubleDependency { | |
| 76 DoubleDependency(double value) {} | |
| 77 } | |
| 78 | |
| 79 class StringDependency { | |
| 80 StringDependency(String value) {} | |
| 81 } | |
| 82 | |
| 83 class BoolDependency { | |
| 84 BoolDependency(bool value) {} | |
| 85 } | |
| 86 | |
| 87 | |
| 88 class CircularA { | |
| 89 CircularA(CircularB b) {} | |
| 90 } | |
| 91 | |
| 92 class CircularB { | |
| 93 CircularB(CircularA a) {} | |
| 94 } | |
| 95 | |
| 96 typedef int CompareInt(int a, int b); | |
| 97 | |
| 98 int compareIntAsc(int a, int b) => b.compareTo(a); | |
| 99 | |
| 100 class WithTypeDefDependency { | |
| 101 CompareInt compare; | |
| 102 | |
| 103 WithTypeDefDependency(this.compare); | |
| 104 } | |
| 105 | |
| 106 class MultipleConstructors { | |
| 107 String instantiatedVia; | |
| 108 MultipleConstructors() : instantiatedVia = 'default'; | |
| 109 MultipleConstructors.named() : instantiatedVia = 'named'; | |
| 110 } | |
| 111 | |
| 112 class InterfaceOne { | |
| 113 } | |
| 114 | |
| 115 class ClassOne implements InterfaceOne { | |
| 116 ClassOne(Log log) { | |
| 117 log.add('ClassOne'); | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 @Injectable() | |
| 122 class ParameterizedType<T1, T2> { | |
| 123 ParameterizedType(); | |
| 124 } | |
| 125 | |
| 126 @Injectable() | |
| 127 class ParameterizedDependency { | |
| 128 final ParameterizedType<bool, int> _p; | |
| 129 ParameterizedDependency(this._p); | |
| 130 } | |
| 131 | |
| 132 @Injectable() | |
| 133 class GenericParameterizedDependency { | |
| 134 final ParameterizedType _p; | |
| 135 GenericParameterizedDependency(this._p); | |
| 136 } | |
| 137 | |
| 138 @Injectable() | |
| 139 class Log { | |
| 140 var log = []; | |
| 141 | |
| 142 add(String message) => log.add(message); | |
| 143 } | |
| 144 | |
| 145 class EmulatedMockEngineFactory { | |
| 146 call(Injector i) => new MockEngine(); | |
| 147 } | |
| 148 | |
| 149 void main() { | |
| 150 createInjectorSpec('DynamicInjector', | |
| 151 (modules, [name]) => new DynamicInjector(modules: modules, name: name)); | |
| 152 | |
| 153 createInjectorSpec('StaticInjector', | |
| 154 (modules, [name]) => new StaticInjector(modules: modules, name: name, | |
| 155 typeFactories: type_factories_gen.typeFactories)); | |
| 156 | |
| 157 dynamicInjectorTest(); | |
| 158 staticInjectorTest(); | |
| 159 } | |
| 160 | |
| 161 typedef Injector InjectorFactory(List<Module> modules, [String name]); | |
| 162 | |
| 163 createInjectorSpec(String injectorName, InjectorFactory injectorFactory) { | |
| 164 | |
| 165 describe(injectorName, () { | |
| 166 | |
| 167 it('should instantiate a type', () { | |
| 168 var injector = injectorFactory([new Module()..type(Engine)]); | |
| 169 var instance = injector.get(Engine); | |
| 170 | |
| 171 expect(instance, instanceOf(Engine)); | |
| 172 expect(instance.id, toEqual('v8-id')); | |
| 173 }); | |
| 174 | |
| 175 it('should fail if no binding is found', () { | |
| 176 var injector = injectorFactory([]); | |
| 177 expect(() { | |
| 178 injector.get(Engine); | |
| 179 }, toThrow(NoProviderError, 'No provider found for Engine! ' | |
| 180 '(resolving Engine)')); | |
| 181 }); | |
| 182 | |
| 183 | |
| 184 it('should resolve basic dependencies', () { | |
| 185 var injector = injectorFactory([new Module()..type(Car)..type(Engine)]); | |
| 186 var instance = injector.get(Car); | |
| 187 | |
| 188 expect(instance, instanceOf(Car)); | |
| 189 expect(instance.engine.id, toEqual('v8-id')); | |
| 190 }); | |
| 191 | |
| 192 | |
| 193 it('should inject generic parameterized types', () { | |
| 194 var injector = injectorFactory([new Module() | |
| 195 ..type(ParameterizedType) | |
| 196 ..type(GenericParameterizedDependency) | |
| 197 ]); | |
| 198 expect(injector.get(GenericParameterizedDependency), | |
| 199 new isInstanceOf<GenericParameterizedDependency>()); | |
| 200 }); | |
| 201 | |
| 202 | |
| 203 xit('should error while resolving parameterized types', () { | |
| 204 var injector = injectorFactory([new Module() | |
| 205 ..type(ParameterizedType) | |
| 206 ..type(ParameterizedDependency) | |
| 207 ]); | |
| 208 expect(() => injector.get(ParameterizedDependency), throws); | |
| 209 }); | |
| 210 | |
| 211 | |
| 212 it('should allow modules and overriding providers', () { | |
| 213 var module = new Module()..type(Engine, implementedBy: MockEngine); | |
| 214 | |
| 215 // injector is immutable | |
| 216 // you can't load more modules once it's instantiated | |
| 217 // (you can create a child injector) | |
| 218 var injector = injectorFactory([module]); | |
| 219 var instance = injector.get(Engine); | |
| 220 | |
| 221 expect(instance.id, toEqual('mock-id')); | |
| 222 }); | |
| 223 | |
| 224 | |
| 225 it('should only create a single instance', () { | |
| 226 var injector = injectorFactory([new Module()..type(Engine)]); | |
| 227 var first = injector.get(Engine); | |
| 228 var second = injector.get(Engine); | |
| 229 | |
| 230 expect(first, toBe(second)); | |
| 231 }); | |
| 232 | |
| 233 | |
| 234 it('should allow providing values', () { | |
| 235 var module = new Module() | |
| 236 ..value(Engine, 'str value') | |
| 237 ..value(Car, 123); | |
| 238 | |
| 239 var injector = injectorFactory([module]); | |
| 240 var abcInstance = injector.get(Engine); | |
| 241 var complexInstance = injector.get(Car); | |
| 242 | |
| 243 expect(abcInstance, toEqual('str value')); | |
| 244 expect(complexInstance, toEqual(123)); | |
| 245 }); | |
| 246 | |
| 247 | |
| 248 it('should allow providing factory functions', () { | |
| 249 var module = new Module()..factory(Engine, (Injector injector) { | |
| 250 return 'factory-product'; | |
| 251 }); | |
| 252 | |
| 253 var injector = injectorFactory([module]); | |
| 254 var instance = injector.get(Engine); | |
| 255 | |
| 256 expect(instance, toEqual('factory-product')); | |
| 257 }); | |
| 258 | |
| 259 | |
| 260 it('should allow providing with emulated factory functions', () { | |
| 261 var module = new Module(); | |
| 262 module.factory(Engine, new EmulatedMockEngineFactory()); | |
| 263 | |
| 264 var injector = injectorFactory([module]); | |
| 265 var instance = injector.get(Engine); | |
| 266 | |
| 267 expect(instance, new isInstanceOf<MockEngine>()); | |
| 268 }); | |
| 269 | |
| 270 | |
| 271 it('should inject injector into factory function', () { | |
| 272 var module = new Module() | |
| 273 ..type(Engine) | |
| 274 ..factory(Car, (Injector injector) { | |
| 275 return new Car(injector.get(Engine), injector); | |
| 276 }); | |
| 277 | |
| 278 var injector = injectorFactory([module]); | |
| 279 var instance = injector.get(Car); | |
| 280 | |
| 281 expect(instance, instanceOf(Car)); | |
| 282 expect(instance.engine.id, toEqual('v8-id')); | |
| 283 }); | |
| 284 | |
| 285 | |
| 286 it('should throw an exception when injecting a primitive type', () { | |
| 287 var injector = injectorFactory([ | |
| 288 new Module() | |
| 289 ..type(NumDependency) | |
| 290 ..type(IntDependency) | |
| 291 ..type(DoubleDependency) | |
| 292 ..type(BoolDependency) | |
| 293 ..type(StringDependency) | |
| 294 ]); | |
| 295 | |
| 296 expect(() { | |
| 297 injector.get(NumDependency); | |
| 298 }, toThrow(NoProviderError, 'Cannot inject a primitive type of num! ' | |
| 299 '(resolving NumDependency -> num)')); | |
| 300 | |
| 301 expect(() { | |
| 302 injector.get(IntDependency); | |
| 303 }, toThrow(NoProviderError, 'Cannot inject a primitive type of int! ' | |
| 304 '(resolving IntDependency -> int)')); | |
| 305 | |
| 306 expect(() { | |
| 307 injector.get(DoubleDependency); | |
| 308 }, toThrow(NoProviderError, 'Cannot inject a primitive type of double! ' | |
| 309 '(resolving DoubleDependency -> double)')); | |
| 310 | |
| 311 expect(() { | |
| 312 injector.get(BoolDependency); | |
| 313 }, toThrow(NoProviderError, 'Cannot inject a primitive type of bool! ' | |
| 314 '(resolving BoolDependency -> bool)')); | |
| 315 | |
| 316 expect(() { | |
| 317 injector.get(StringDependency); | |
| 318 }, toThrow(NoProviderError, 'Cannot inject a primitive type of String! ' | |
| 319 '(resolving StringDependency -> String)')); | |
| 320 }); | |
| 321 | |
| 322 | |
| 323 it('should throw an exception when circular dependency', () { | |
| 324 var injector = injectorFactory([new Module()..type(CircularA)..type(Circul
arB)]); | |
| 325 | |
| 326 expect(() { | |
| 327 injector.get(CircularA); | |
| 328 }, toThrow(CircularDependencyError, 'Cannot resolve a circular dependency!
' | |
| 329 '(resolving CircularA -> ' | |
| 330 'CircularB -> CircularA)')); | |
| 331 }); | |
| 332 | |
| 333 | |
| 334 it('should provide the injector as Injector', () { | |
| 335 var injector = injectorFactory([]); | |
| 336 | |
| 337 expect(injector.get(Injector), toBe(injector)); | |
| 338 }); | |
| 339 | |
| 340 | |
| 341 it('should inject a typedef', () { | |
| 342 var module = new Module()..value(CompareInt, compareIntAsc); | |
| 343 | |
| 344 var injector = injectorFactory([module]); | |
| 345 var compare = injector.get(CompareInt); | |
| 346 | |
| 347 expect(compare(1, 2), toBe(1)); | |
| 348 expect(compare(5, 2), toBe(-1)); | |
| 349 }); | |
| 350 | |
| 351 | |
| 352 it('should throw an exception when injecting typedef without providing it',
() { | |
| 353 var injector = injectorFactory([new Module()..type(WithTypeDefDependency)]
); | |
| 354 | |
| 355 expect(() { | |
| 356 injector.get(WithTypeDefDependency); | |
| 357 }, throws); | |
| 358 }); | |
| 359 | |
| 360 | |
| 361 it('should instantiate via the default/unnamed constructor', () { | |
| 362 var injector = injectorFactory([new Module()..type(MultipleConstructors)])
; | |
| 363 MultipleConstructors instance = injector.get(MultipleConstructors); | |
| 364 expect(instance.instantiatedVia, 'default'); | |
| 365 }); | |
| 366 | |
| 367 // CHILD INJECTORS | |
| 368 it('should inject from child', () { | |
| 369 var module = new Module()..type(Engine, implementedBy: MockEngine); | |
| 370 | |
| 371 var parent = injectorFactory([new Module()..type(Engine)]); | |
| 372 var child = parent.createChild([module]); | |
| 373 | |
| 374 var abcFromParent = parent.get(Engine); | |
| 375 var abcFromChild = child.get(Engine); | |
| 376 | |
| 377 expect(abcFromParent.id, toEqual('v8-id')); | |
| 378 expect(abcFromChild.id, toEqual('mock-id')); | |
| 379 }); | |
| 380 | |
| 381 | |
| 382 it('should enumerate across children', () { | |
| 383 var parent = injectorFactory([new Module()..type(Engine)]); | |
| 384 var child = parent.createChild([new Module()..type(MockEngine)]); | |
| 385 | |
| 386 expect(parent.types, unorderedEquals(new Set.from([Engine, Injector]))); | |
| 387 expect(child.types, unorderedEquals(new Set.from([Engine, MockEngine, Inje
ctor]))); | |
| 388 }); | |
| 389 | |
| 390 | |
| 391 it('should inject instance from parent if not provided in child', () { | |
| 392 var module = new Module()..type(Car); | |
| 393 | |
| 394 var parent = injectorFactory([new Module()..type(Car)..type(Engine)]); | |
| 395 var child = parent.createChild([module]); | |
| 396 | |
| 397 var complexFromParent = parent.get(Car); | |
| 398 var complexFromChild = child.get(Car); | |
| 399 var abcFromParent = parent.get(Engine); | |
| 400 var abcFromChild = child.get(Engine); | |
| 401 | |
| 402 expect(complexFromChild, not(toBe(complexFromParent))); | |
| 403 expect(abcFromChild, toBe(abcFromParent)); | |
| 404 }); | |
| 405 | |
| 406 | |
| 407 it('should inject instance from parent but never use dependency from child',
() { | |
| 408 var module = new Module()..type(Engine, implementedBy: MockEngine); | |
| 409 | |
| 410 var parent = injectorFactory([new Module()..type(Car)..type(Engine)]); | |
| 411 var child = parent.createChild([module]); | |
| 412 | |
| 413 var complexFromParent = parent.get(Car); | |
| 414 var complexFromChild = child.get(Car); | |
| 415 var abcFromParent = parent.get(Engine); | |
| 416 var abcFromChild = child.get(Engine); | |
| 417 | |
| 418 expect(complexFromChild, toBe(complexFromParent)); | |
| 419 expect(complexFromChild.engine, toBe(abcFromParent)); | |
| 420 expect(complexFromChild.engine, not(toBe(abcFromChild))); | |
| 421 }); | |
| 422 | |
| 423 | |
| 424 it('should force new instance in child even if already instantiated in paren
t', () { | |
| 425 var parent = injectorFactory([new Module()..type(Engine)]); | |
| 426 var abcAlreadyInParent = parent.get(Engine); | |
| 427 | |
| 428 var child = parent.createChild([], forceNewInstances: [Engine]); | |
| 429 var abcFromChild = child.get(Engine); | |
| 430 | |
| 431 expect(abcFromChild, not(toBe(abcAlreadyInParent))); | |
| 432 }); | |
| 433 | |
| 434 | |
| 435 it('should force new instance in child using provider from grand parent', ()
{ | |
| 436 var module = new Module()..type(Engine, implementedBy: MockEngine); | |
| 437 | |
| 438 var grandParent = injectorFactory([module]); | |
| 439 var parent = grandParent.createChild([]); | |
| 440 var child = parent.createChild([], forceNewInstances: [Engine]); | |
| 441 | |
| 442 var abcFromGrandParent = grandParent.get(Engine); | |
| 443 var abcFromChild = child.get(Engine); | |
| 444 | |
| 445 expect(abcFromChild.id, toEqual(('mock-id'))); | |
| 446 expect(abcFromChild, not(toBe(abcFromGrandParent))); | |
| 447 }); | |
| 448 | |
| 449 | |
| 450 it('should provide child injector as Injector', () { | |
| 451 var injector = injectorFactory([]); | |
| 452 var child = injector.createChild([]); | |
| 453 | |
| 454 expect(child.get(Injector), toBe(child)); | |
| 455 }); | |
| 456 | |
| 457 | |
| 458 it('should set the injector name', () { | |
| 459 var injector = injectorFactory([], 'foo'); | |
| 460 expect(injector.name, 'foo'); | |
| 461 }); | |
| 462 | |
| 463 | |
| 464 it('should set the child injector name', () { | |
| 465 var injector = injectorFactory([], 'foo'); | |
| 466 var childInjector = injector.createChild(null, name: 'bar'); | |
| 467 expect(childInjector.name, 'bar'); | |
| 468 }); | |
| 469 | |
| 470 | |
| 471 it('should instantiate class only once (Issue #18)', () { | |
| 472 var injector = injectorFactory([ | |
| 473 new Module() | |
| 474 ..type(Log) | |
| 475 ..type(ClassOne) | |
| 476 ..factory(InterfaceOne, (i) => i.get(ClassOne)) | |
| 477 ]); | |
| 478 | |
| 479 expect(injector.get(InterfaceOne), same(injector.get(ClassOne))); | |
| 480 expect(injector.get(Log).log.join(' '), 'ClassOne'); | |
| 481 }); | |
| 482 | |
| 483 | |
| 484 describe('creation strategy', () { | |
| 485 | |
| 486 it('should get called for instance creation', () { | |
| 487 | |
| 488 List creationLog = []; | |
| 489 dynamic creation(Injector requesting, Injector defining, factory) { | |
| 490 creationLog.add([requesting, defining]); | |
| 491 return factory(); | |
| 492 } | |
| 493 | |
| 494 var parentModule = new Module() | |
| 495 ..type(Engine, implementedBy: MockEngine, creation: creation) | |
| 496 ..type(Car, creation: creation); | |
| 497 | |
| 498 var parentInjector = injectorFactory([parentModule]); | |
| 499 var childInjector = parentInjector.createChild([]); | |
| 500 childInjector.get(Car); | |
| 501 expect(creationLog, [ | |
| 502 [childInjector, parentInjector], | |
| 503 [childInjector, parentInjector] | |
| 504 ]); | |
| 505 }); | |
| 506 | |
| 507 it('should be able to prevent instantiation', () { | |
| 508 | |
| 509 List creationLog = []; | |
| 510 dynamic creation(Injector requesting, Injector defining, factory) { | |
| 511 throw 'not allowing'; | |
| 512 } | |
| 513 | |
| 514 var module = new Module() | |
| 515 ..type(Engine, implementedBy: MockEngine, creation: creation); | |
| 516 var injector = injectorFactory([module]); | |
| 517 expect(() { | |
| 518 injector.get(Engine); | |
| 519 }, throwsA('not allowing')); | |
| 520 }); | |
| 521 }); | |
| 522 | |
| 523 | |
| 524 describe('visiblity', () { | |
| 525 | |
| 526 it('should hide instances', () { | |
| 527 | |
| 528 var rootMock = new MockEngine(); | |
| 529 var childMock = new MockEngine(); | |
| 530 | |
| 531 var parentModule = new Module() | |
| 532 ..value(Engine, rootMock); | |
| 533 var childModule = new Module() | |
| 534 ..value(Engine, childMock, visibility: (_, __) => false); | |
| 535 | |
| 536 var parentInjector = injectorFactory([parentModule]); | |
| 537 var childInjector = parentInjector.createChild([childModule]); | |
| 538 | |
| 539 var val = childInjector.get(Engine); | |
| 540 expect(val, same(rootMock)); | |
| 541 }); | |
| 542 | |
| 543 it('should throw when an instance in not visible in the root injector', ()
{ | |
| 544 var module = new Module() | |
| 545 ..value(Car, 'Invisible', visibility: (_, __) => false); | |
| 546 | |
| 547 var injector = injectorFactory([module]); | |
| 548 | |
| 549 expect(() { | |
| 550 injector.get(Car); | |
| 551 }, toThrow( | |
| 552 NoProviderError, | |
| 553 'No provider found for Car! (resolving Car)' | |
| 554 )); | |
| 555 }); | |
| 556 | |
| 557 }); | |
| 558 | |
| 559 }); | |
| 560 | |
| 561 } | |
| 562 | |
| 563 void dynamicInjectorTest() { | |
| 564 describe('DynamicInjector', () { | |
| 565 | |
| 566 it('should throw a comprehensible error message on untyped argument', () { | |
| 567 var module = new Module()..type(Lemon)..type(Engine); | |
| 568 var injector = new DynamicInjector(modules : [module]); | |
| 569 | |
| 570 expect(() { | |
| 571 injector.get(Lemon); | |
| 572 }, toThrow(NoProviderError, "The 'engine' parameter must be typed " | |
| 573 "(resolving Lemon)")); | |
| 574 }); | |
| 575 | |
| 576 it('should throw a comprehensible error message when no default constructor
found', () { | |
| 577 var module = new Module()..type(HiddenConstructor); | |
| 578 var injector = new DynamicInjector(modules: [module]); | |
| 579 | |
| 580 expect(() { | |
| 581 injector.get(HiddenConstructor); | |
| 582 }, toThrow(NoProviderError, startsWith('Unable to find default ' | |
| 583 'constructor for HiddenConstructor. Make sure class has a ' | |
| 584 'default constructor.'))); | |
| 585 }); | |
| 586 | |
| 587 }); | |
| 588 } | |
| 589 | |
| 590 void staticInjectorTest() { | |
| 591 describe('StaticInjector', () { | |
| 592 | |
| 593 it('should use type factories passed in the constructor', () { | |
| 594 var module = new Module() | |
| 595 ..type(Engine); | |
| 596 var injector = new StaticInjector(modules: [module], typeFactories: { | |
| 597 Engine: (f) => new Engine() | |
| 598 }); | |
| 599 | |
| 600 var engine; | |
| 601 expect(() { | |
| 602 engine = injector.get(Engine); | |
| 603 }, isNot(throws)); | |
| 604 expect(engine, new isInstanceOf<Engine>()); | |
| 605 }); | |
| 606 | |
| 607 it('should use type factories passes in one module', () { | |
| 608 var module = new Module() | |
| 609 ..type(Engine) | |
| 610 ..typeFactories = { | |
| 611 Engine: (f) => new Engine() | |
| 612 }; | |
| 613 var injector = new StaticInjector(modules: [module]); | |
| 614 | |
| 615 var engine; | |
| 616 expect(() { | |
| 617 engine = injector.get(Engine); | |
| 618 }, isNot(throws)); | |
| 619 expect(engine, new isInstanceOf<Engine>()); | |
| 620 }); | |
| 621 | |
| 622 it('should use type factories passes in many modules', () { | |
| 623 var module1 = new Module() | |
| 624 ..type(Engine) | |
| 625 ..typeFactories = { | |
| 626 Engine: (f) => new Engine() | |
| 627 }; | |
| 628 var module2 = new Module() | |
| 629 ..type(Car) | |
| 630 ..typeFactories = { | |
| 631 Car: (f) => new Car(f(Engine), f(Injector)) | |
| 632 }; | |
| 633 | |
| 634 var injector = new StaticInjector(modules: [module1, module2]); | |
| 635 | |
| 636 var engine; | |
| 637 expect(() { | |
| 638 engine = injector.get(Car); | |
| 639 }, isNot(throws)); | |
| 640 expect(engine, new isInstanceOf<Car>()); | |
| 641 }); | |
| 642 | |
| 643 it('should use type factories passes in hierarchical module', () { | |
| 644 var module = new Module() | |
| 645 ..type(Engine) | |
| 646 ..typeFactories = { | |
| 647 Engine: (f) => new Engine() | |
| 648 }; | |
| 649 | |
| 650 module.install(new Module() | |
| 651 ..type(Car) | |
| 652 ..typeFactories = { | |
| 653 Car: (f) => new Car(f(Engine), f(Injector)) | |
| 654 }); | |
| 655 | |
| 656 var injector = new StaticInjector(modules: [module]); | |
| 657 | |
| 658 var engine; | |
| 659 expect(() { | |
| 660 engine = injector.get(Car); | |
| 661 }, isNot(throws)); | |
| 662 expect(engine, new isInstanceOf<Car>()); | |
| 663 }); | |
| 664 | |
| 665 it('should find type factories from parent injector', () { | |
| 666 var module1 = new Module() | |
| 667 ..type(Engine) | |
| 668 ..typeFactories = { | |
| 669 Engine: (f) => new Engine() | |
| 670 }; | |
| 671 var module2 = new Module() | |
| 672 ..type(Car) | |
| 673 ..typeFactories = { | |
| 674 Car: (f) => new Car(f(Engine), f(Injector)) | |
| 675 }; | |
| 676 | |
| 677 var rootInjector = new StaticInjector(modules: [module1]); | |
| 678 var childInjector = rootInjector.createChild([module2]); | |
| 679 | |
| 680 expect(() { | |
| 681 rootInjector.get(Car); | |
| 682 }, throws); | |
| 683 | |
| 684 var engine; | |
| 685 expect(() { | |
| 686 engine = childInjector.get(Car); | |
| 687 }, isNot(throws)); | |
| 688 expect(engine, new isInstanceOf<Car>()); | |
| 689 }); | |
| 690 | |
| 691 }); | |
| 692 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1086713003:
Remove everything but markdown from third_party (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart