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import { Component, NO_ERRORS_SCHEMA } from '@angular/core';
import { async, ComponentFixture, TestBed, fakeAsync, tick } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { NoopAnimationsModule } from '@angular/platform-browser/animations';
import { Observable, from } from 'rxjs';
import { delay } from 'rxjs/operators';
import { TodoItem } from '../todo-item';
import { TodoPageComponent } from './todo-page.component';
import { TodoService } from '../todo-service/todo.service';
@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: TodoPageComponent;
let fixture: ComponentFixture<TodoPageComponent>;
const mockTodoItems: TodoItem[] = [
{
number: 0,
title: 'Test title 1',
isClosed: true,
detailUrl: 'test_url1'
},
{
number: 1,
title: 'Test title 2',
isClosed: false,
detailUrl: 'test_url2'
}
];
beforeEach(async(() => {
const mockTodoService: jasmine.SpyObj<TodoService> = jasmine.createSpyObj('TodoService', ['getWorkItemList']);
mockTodoService.getWorkItemList.and.returnValue(asyncArray(mockTodoItems));
TestBed.configureTestingModule({
declarations: [TodoPageComponent, MatProgressBarStubComponent],
imports: [NoopAnimationsModule],
providers: [{ provide: TodoService, useValue: mockTodoService }],
schemas: [NO_ERRORS_SCHEMA]
}).compileComponents();
}));
beforeEach(() => {
fixture = TestBed.createComponent(TodoPageComponent);
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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