Files
paperless-ngx/src-ui/src/app/components/common/toasts/toasts.component.spec.ts
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TypeScript

import { provideHttpClient, withInterceptorsFromDi } from '@angular/common/http'
import { provideHttpClientTesting } from '@angular/common/http/testing'
import { ComponentFixture, TestBed } from '@angular/core/testing'
import { By } from '@angular/platform-browser'
import { NgxBootstrapIconsModule, allIcons } from 'ngx-bootstrap-icons'
import { Subject } from 'rxjs'
import { Toast, ToastService } from 'src/app/services/toast.service'
import { MAX_VISIBLE_TOASTS, ToastsComponent } from './toasts.component'
const toast = {
content: 'Error 2 content',
delay: 5000,
error: {
url: 'https://example.com',
status: 500,
statusText: 'Internal Server Error',
message: 'Internal server error 500 message',
error: { detail: 'Error 2 message details' },
},
}
describe('ToastsComponent', () => {
let component: ToastsComponent
let fixture: ComponentFixture<ToastsComponent>
let toastService: ToastService
let toastSubject: Subject<Toast>
beforeEach(async () => {
TestBed.configureTestingModule({
imports: [ToastsComponent, NgxBootstrapIconsModule.pick(allIcons)],
providers: [
provideHttpClient(withInterceptorsFromDi()),
provideHttpClientTesting(),
],
}).compileComponents()
toastService = TestBed.inject(ToastService)
toastSubject = new Subject()
jest.replaceProperty(toastService, 'showToast', toastSubject)
fixture = TestBed.createComponent(ToastsComponent)
component = fixture.componentInstance
fixture.detectChanges()
})
it('should create', () => {
expect(component).toBeTruthy()
})
it('should close toast', () => {
toastSubject.next(toast)
const closeToastSpy = jest.spyOn(toastService, 'closeToast')
component.closeToast(toast)
expect(component.toasts()).toEqual([])
expect(closeToastSpy).toHaveBeenCalledWith(toast)
})
it('should update from toastService', () => {
toastSubject.next(toast)
expect(component.toasts()).toEqual([toast])
})
it('should stack popups newest first, up to the maximum', () => {
const toasts: Toast[] = Array.from(
{ length: MAX_VISIBLE_TOASTS + 1 },
(_, i) => ({ id: `${i}`, content: `Toast ${i}`, delay: 5000 })
)
toasts.forEach((t) => toastSubject.next(t))
expect(component.toasts().map((t) => t.id)).toEqual(['3', '2', '1'])
// showing a visible toast again moves it to the top without duplicating
toastSubject.next(toasts[1])
expect(component.toasts().map((t) => t.id)).toEqual(['1', '3', '2'])
})
it('should remove a popup when it hides without closing it', () => {
const closeToastSpy = jest.spyOn(toastService, 'closeToast')
const first = { id: 'a', content: 'A', delay: 5000 }
const second = { id: 'b', content: 'B', delay: 5000 }
toastSubject.next(first)
toastSubject.next(second)
component.removePopup(first)
expect(component.toasts()).toEqual([second])
expect(closeToastSpy).not.toHaveBeenCalled()
})
it('should clear popups when toastService emits null', () => {
toastSubject.next(toast)
toastSubject.next(null)
expect(component.toasts()).toEqual([])
})
it('should render one toast component per popup', () => {
toastSubject.next({ id: 'a', content: 'A', delay: 5000 })
toastSubject.next({ id: 'b', content: 'B', delay: 5000 })
fixture.detectChanges()
expect(fixture.nativeElement.querySelectorAll('pngx-toast')).toHaveLength(2)
})
it('should only hide the popup on close, but clear it on action', () => {
const closeToastSpy = jest.spyOn(toastService, 'closeToast')
const first = { id: 'a', content: 'A', delay: 5000 }
const second = { id: 'b', content: 'B', delay: 5000 }
toastSubject.next(first)
toastSubject.next(second)
fixture.detectChanges()
const popups = fixture.debugElement.queryAll(By.css('pngx-toast'))
popups[1].triggerEventHandler('closed', first)
expect(closeToastSpy).not.toHaveBeenCalled()
expect(component.toasts()).toEqual([second])
popups[0].triggerEventHandler('actioned', second)
expect(closeToastSpy).toHaveBeenCalledWith(second)
expect(component.toasts()).toEqual([])
})
})