tôi đã xác định một FooService
như sauSử dụng TypeMoq Mock Với Testbed góc
import {Injectable} from "@angular/core";
export interface Foo {
Foo(): string;
}
@Injectable()
export class FooService implements Foo {
Foo(): string {
return "Fooey!";
}
}
và BarComponent
như thế này
import {Component} from "@angular/core";
import {FooService} from "./foo.service";
@Component({
moduleId: 'module.id',
template: '<h1>Bar Component</h1>'
})
export class BarComponent {
constructor(private fooService: FooService) {}
doFoo(): string {
return(this.fooService.Foo());
}
}
Bây giờ tôi muốn thử nghiệm của tôi BarComponent
và tôi muốn sử dụng TypeMoq
để giả lập FooService
, vì vậy tôi đã làm như sau
import * as TypeMoq from 'typemoq';
import {Foo, FooService} from "./foo.service";
import {TestBed, async} from "@angular/core/testing";
import {BarComponent} from "./bar.component";
describe('BarComponent',() => {
let component: BarComponent;
let mockFooService: TypeMoq.IMock<Foo>;
beforeEach(async(() => {
mockFooService = TypeMoq.Mock.ofType<Foo>();
TestBed.configureTestingModule({
declarations: [BarComponent],
providers: [{ provide: FooService, useValue: mockFooService.object}]
});
}));
beforeEach(() => {
let fixture = TestBed.createComponent(BarComponent);
component = fixture.componentInstance;
});
it('does something',() => {
mockFooService.setup(x => x.Foo()).returns(() => "FooBar!");
expect(component.doFoo()).toEqual("FooBar!");
});
});
Tuy nhiên chạy trên cung cấp cho các lỗi sau
SyntaxError: Function arg string contains parenthesis
at new Function (<anonymous>)
at evalExpression (webpack:///~/@angular/compiler/@angular/compiler.es5.js:25431:25 <- config/karma-test-shim.js:59412:40)
at jitStatements (webpack:///~/@angular/compiler/@angular/compiler.es5.js:25448:0 <- config/karma-test-shim.js:59429:12)
at JitCompiler._compileModule (webpack:///~/@angular/compiler/@angular/compiler.es5.js:25658:0 <- config/karma-test-shim.js:59639:35)
at createResult (webpack:///~/@angular/compiler/@angular/compiler.es5.js:25613:0 <- config/karma-test-shim.js:59594:106)
at JitCompiler._compileModuleAndAllComponents (webpack:///~/@angular/compiler/@angular/compiler.es5.js:25616:0 <- config/karma-test-shim.js:59597:40)
at JitCompiler.compileModuleAndAllComponentsSync (webpack:///~/@angular/compiler/@angular/compiler.es5.js:25559:0 <- config/karma-test-shim.js:59540:23)
at TestingCompilerImpl.compileModuleAndAllComponentsSync (webpack:///~/@angular/compiler/@angular/compiler/testing.es5.js:475:0 <- config/karma-test-shim.js:68201:31)
at TestBed._initIfNeeded (webpack:///~/@angular/core/@angular/core/testing.es5.js:705:0 <- config/karma-test-shim.js:21376:36)
at TestBed.createComponent (webpack:///~/@angular/core/@angular/core/testing.es5.js:791:0 <- config/karma-test-shim.js:21462:14)
at Function.TestBed.createComponent (webpack:///~/@angular/core/@angular/core/testing.es5.js:610:0 <- config/karma-test-shim.js:21281:29)
at Object.<anonymous> (webpack:///src/app/auth/login/bar.component.spec.ts:19:30 <- config/karma-test-shim.js:99954:41)
at ZoneDelegate.invoke (webpack:///~/zone.js/dist/zone.js:365:0 <- config/karma-test-shim.js:65763:26)
at ProxyZoneSpec.onInvoke (webpack:///~/zone.js/dist/proxy.js:79:0 <- config/karma-test-shim.js:65294:39)
at ZoneDelegate.invoke (webpack:///~/zone.js/dist/zone.js:364:0 <- config/karma-test-shim.js:65762:32)
at Zone.run (webpack:///~/zone.js/dist/zone.js:125:0 <- config/karma-test-shim.js:65523:43)
at Object.<anonymous> (webpack:///~/zone.js/dist/jasmine-patch.js:104:0 <- config/karma-test-shim.js:65010:34)
at webpack:///~/@angular/core/@angular/core/testing.es5.js:96:0 <- config/karma-test-shim.js:20767:17
at ZoneDelegate.invoke (webpack:///~/zone.js/dist/zone.js:365:0 <- config/karma-test-shim.js:65763:26)
at AsyncTestZoneSpec.onInvoke (webpack:///~/zone.js/dist/async-test.js:49:0 <- config/karma-test-shim.js:64605:39)
at ProxyZoneSpec.onInvoke (webpack:///~/zone.js/dist/proxy.js:76:0 <- config/karma-test-shim.js:65291:39)
at ZoneDelegate.invoke (webpack:///~/zone.js/dist/zone.js:364:0 <- config/karma-test-shim.js:65762:32)
at Zone.run (webpack:///~/zone.js/dist/zone.js:125:0 <- config/karma-test-shim.js:65523:43)
at AsyncTestZoneSpec._finishCallback (webpack:///~/@angular/core/@angular/core/testing.es5.js:91:0 <- config/karma-test-shim.js:20762:25)
at webpack:///~/zone.js/dist/async-test.js:38:0 <- config/karma-test-shim.js:64594:31
at ZoneDelegate.invokeTask (webpack:///~/zone.js/dist/zone.js:398:0 <- config/karma-test-shim.js:65796:31)
at Zone.runTask (webpack:///~/zone.js/dist/zone.js:165:0 <- config/karma-test-shim.js:65563:47)
at ZoneTask.invoke (webpack:///~/zone.js/dist/zone.js:460:0 <- config/karma-test-shim.js:65858:38)
at timer (webpack:///~/zone.js/dist/zone.js:1732:0 <- config/karma-test-shim.js:67130:29)
Có thể sử dụng TypeMoq
's với góc TestBed
và nếu như vậy làm thế nào để bạn làm điều đó một cách chính xác?
này lọt vào mắt tôi. Tại sao chính xác chúng ta gặp lỗi trong khi sử dụng cấu hình nhà cung cấp 'useValue'? –
Khi tôi cố gắng làm theo cách này, tôi thấy một lỗi 'LoạiError: Không thể chuyển đổi không xác định hoặc null để đối tượng tại Function.getPrototypeOf (bản địa)' :-(Tôi có một thiết lập rất giống nhau – Benno