我已经编写了许多单元测试来测试可观察量,但由于某种原因,这个测试不像我写的其他测试那样,但是我没看到问题是什么。
我想要一个模拟ChangePasswordFacade.successful $来返回一个返回true的Observable。尽管我以前使用过下面的模拟策略,但它不起作用。我尝试将ChangePasswordFacade注入测试。我尝试在TestBed提供程序的useValue中使用模拟成功的$函数。我尝试了下面的方法。它们都是虚假的成功美元。我怎么能以不同的方式嘲笑这个以回归呢?
import { ComponentFixture, TestBed } from '@angular/core/testing';
import { PasswordChangeModalComponent } from './password-change-modal.component';
import { ReactiveFormsModule } from '@angular/forms';
import { PasswordChangeFormComponent } from '../../..';
import { DefaultPopoverComponent } from '@bis-angular/shared-components/pattern-library';
import { Store, StoreModule } from '@ngrx/store';
import {
ChangePasswordFacade,
UserInformationFacade,
changePasswordInitialState,
CHANGEPASSWORD_FEATURE_KEY,
changePasswordReducer
} from '@bis-angular/users';
import { configureTestSuite } from 'ng-bullet';
import { of } from 'rxjs';
describe('PasswordChangeModalComponent', () => {
let component: PasswordChangeModalComponent;
let fixture: ComponentFixture<PasswordChangeModalComponent>;
const childDefaultPopoverComponent = jasmine.createSpyObj('DefaultPopoverComponent', ['hideModal', 'showModal']);
const childPasswordChangeFormComponent = jasmine.createSpyObj('PasswordChangeFormComponent', ['setFormControlsToEmpty']);
const changePasswordFacadeSpy = jasmine.createSpyObj('ChangePasswordFacade', ['resetState']);
configureTestSuite(() => {
TestBed.configureTestingModule({
imports: [
ReactiveFormsModule,
StoreModule.forRoot({}),
StoreModule.forFeature(CHANGEPASSWORD_FEATURE_KEY, changePasswordReducer, {
initialState: changePasswordInitialState
})
],
declarations: [PasswordChangeFormComponent, DefaultPopoverComponent, PasswordChangeModalComponent],
providers: [Store, UserInformationFacade, ChangePasswordFacade]
});
});
beforeEach(() => {
fixture = TestBed.createComponent(PasswordChangeModalComponent);
component = fixture.componentInstance;
fixture.detectChanges();
component.defaultPopoverComponent = childDefaultPopoverComponent;
component.watchSuccessful = { unsubscribe: () => {} };
spyOn(component.watchSuccessful, 'unsubscribe');
const service = TestBed.get(ChangePasswordFacade);
spyOn(service, 'successful$').and.returnValue(of(true));
});
describe('showPasswordChangeModal function ', () => {
it('should call showModal and then not hide if not successful ', () => {
spyOn(component, 'hidePasswordChangeModal');
component.successful$.subscribe((successful: boolean) => {
expect(component.hidePasswordChangeModal).toHaveBeenCalled();
expect(changePasswordFacadeSpy.resetState).toHaveBeenCalled();
expect(component.watchSuccessful.unsubscribe).toHaveBeenCalled();
});
component.showPasswordChangeModal();
expect(childDefaultPopoverComponent.showModal).toHaveBeenCalled();
});
});
});
import { Injectable } from '@angular/core';
import { select, Store } from '@ngrx/store';
import { ChangePasswordPartialState } from './change-password.reducer';
import { changePasswordQuery } from './change-password.selectors';
import { ChangePassword, ChangePasswordResetState } from './change-password.actions';
import { NewPassword } from '@bis-angular/users';
@Injectable()
export class ChangePasswordFacade {
successful$ = this.store.pipe(select(changePasswordQuery.getSuccessful));
initiated$ = this.store.pipe(select(changePasswordQuery.getInitiated));
constructor(private store: Store<ChangePasswordPartialState>) {}
changePassword(newPassword: NewPassword, userId: string) {
this.store.dispatch(new ChangePassword(newPassword, userId));
}
resetState() {
this.store.dispatch(new ChangePasswordResetState());
}
}
这是我如何做到的:我使用商店发送一个动作来将成功的$改为true。现在它是一个集成测试,而不是单元测试。
import { ChangePasswordFacade, UserInformationFacade } from '@bis-angular/users';
import { ComponentFixture, TestBed } from '@angular/core/testing';
import { StoreModule, Store } from '@ngrx/store';
import { PasswordChangeModalComponent, PasswordChangeFormComponent } from '../../..';
import * as fromFeature from '@bis-angular/users';
import { ReactiveFormsModule } from '@angular/forms';
import { configureTestSuite } from 'ng-bullet';
import { DefaultPopoverComponent } from '@bis-angular/shared-components/pattern-library';
describe('PasswordChangeModalComponent', () => {
let component: PasswordChangeModalComponent;
let fixture: ComponentFixture<PasswordChangeModalComponent>;
let store: Store<fromFeature.ChangePasswordState>;
const childDefaultPopoverComponent = jasmine.createSpyObj('DefaultPopoverComponent', ['hideModal', 'showModal']);
const childPasswordChangeFormComponent = jasmine.createSpyObj('PasswordChangeFormComponent', ['setFormControlsToEmpty']);
configureTestSuite(() => {
TestBed.configureTestingModule({
imports: [
StoreModule.forRoot({}),
ReactiveFormsModule,
StoreModule.forFeature(fromFeature.CHANGEPASSWORD_FEATURE_KEY, fromFeature.changePasswordReducer, {
initialState: fromFeature.changePasswordInitialState
})
],
declarations: [PasswordChangeModalComponent, DefaultPopoverComponent, PasswordChangeFormComponent],
providers: [ChangePasswordFacade, UserInformationFacade]
});
});
beforeEach(() => {
store = TestBed.get(Store);
spyOn(store, 'dispatch').and.callThrough();
fixture = TestBed.createComponent(PasswordChangeModalComponent);
component = fixture.componentInstance;
component.defaultPopoverComponent = childDefaultPopoverComponent;
component.watchSuccessful = { unsubscribe: () => {} };
spyOn(component.watchSuccessful, 'unsubscribe');
fixture.detectChanges();
});
it('should be created', () => {
expect(component).toBeTruthy();
});
describe('showPasswordChangeModal function ', () => {
it('should call showModal and then hide if successful ', () => {
spyOn(component, 'hidePasswordChangeModal');
spyOn(component.changePasswordService, 'resetState');
const action = new fromFeature.ChangePasswordSuccessful({});
store.dispatch(action);
component.showPasswordChangeModal();
component.successful$.subscribe((successful: boolean) => {
expect(component.hidePasswordChangeModal).toHaveBeenCalled();
expect(component.changePasswordService.resetState).toHaveBeenCalled();
});
expect(childDefaultPopoverComponent.showModal).toHaveBeenCalled();
});
});
});
因为,您想要访问successful$
,它是在ChangePasswordFacade
的类级定义的。
就像是:
export class ChangePasswordFacade{
successful$:observable // ... something like this
}
你应该尝试useValue
:
configureTestSuite(() => {
TestBed.configureTestingModule({
imports: [
ReactiveFormsModule,
StoreModule.forRoot({}),
StoreModule.forFeature(CHANGEPASSWORD_FEATURE_KEY, changePasswordReducer, {
initialState: changePasswordInitialState
})
],
declarations: [PasswordChangeFormComponent, DefaultPopoverComponent, PasswordChangeModalComponent],
providers: [Store, UserInformationFacade,
{provide: ChangePasswordFacade , useValue:
{
successful$ : of(true)
}
}'
]
});
});