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import { Component, NO_ERRORS_SCHEMA } from '@angular/core';
import { async, ComponentFixture, TestBed, fakeAsync, tick } from '@angular/core/testing';
import { Observable, from } from 'rxjs';
import { TodoListPageComponent } from './todo-list-page.component';
import { TodoListService, WorkItem } from './todo-list.service';
import { By } from '@angular/platform-browser';
import { delay } from 'rxjs/operators';
import { NoopAnimationsModule } from '@angular/platform-browser/animations';
@Component({
/* tslint:disable-next-line:component-selector*/
selector: 'mat-progress-bar',
template: ''
})
class MatProgressBarStubComponent {}
function asyncArray<T>(data: T[]): Observable<T> {
return from(data).pipe(delay(0));
}
describe('TodoListPageComponent', () => {
let component: TodoListPageComponent;
let fixture: ComponentFixture<TodoListPageComponent>;
let mockWorkItems: WorkItem[];
beforeEach(async(() => {
const todoListService: jasmine.SpyObj<TodoListService> = jasmine.createSpyObj('TodoListService', ['getWorkItemList']);
mockWorkItems = [
{
id: 0,
title: 'Test title 1',
isCompleted: true,
detailUrl: 'https://test.org/workitems/0',
iconUrl: 'https://test.org/icon/0'
},
{
id: 1,
title: 'Test title 2',
isCompleted: false,
detailUrl: 'https://test.org/workitems/1',
iconUrl: 'https://test.org/icon/1'
}
];
todoListService.getWorkItemList.and.returnValue(asyncArray(mockWorkItems));
TestBed.configureTestingModule({
declarations: [TodoListPageComponent, MatProgressBarStubComponent],
imports: [NoopAnimationsModule],
providers: [{ provide: TodoListService, useValue: todoListService }],
schemas: [NO_ERRORS_SCHEMA]
}).compileComponents();
}));
beforeEach(() => {
fixture = TestBed.createComponent(TodoListPageComponent);
component = fixture.componentInstance;
});
it('should create', () => {
fixture.detectChanges();
expect(component).toBeTruthy();
});
it('should show progress bar during loading', () => {
fixture.detectChanges();
expect(fixture.debugElement.query(By.css('mat-progress-bar'))).toBeTruthy();
});
it('should hide progress bar after loading', fakeAsync(() => {
fixture.detectChanges();
tick();
fixture.detectChanges();
expect(fixture.debugElement.query(By.css('mat-progress-bar'))).toBeFalsy();
}));
});
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