Move from using `async` to `waitForAsync`

[ionitron-bot]

Original issue by @Lindsor on 2020-09-23T15:26:07Z

CLI

Angular is deprecating async() in favor of waitForAsync() the CLI should change this in the generated output spec file.

Example:

import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { IonicModule } from '@ionic/angular';

import { LoginPage } from './login.page';

describe('LoginPage', () => {
  let component: LoginPage;
  let fixture: ComponentFixture<LoginPage>;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [LoginPage],
      imports: [IonicModule.forRoot()],
    }).compileComponents();

    fixture = TestBed.createComponent(LoginPage);
    component = fixture.componentInstance;
    fixture.detectChanges();
  }));

  it('should create', () => {
    expect(component).toBeTruthy();
  });
});

Should be:

import { waitForAsync, ComponentFixture, TestBed } from '@angular/core/testing';
import { IonicModule } from '@ionic/angular';

import { LoginPage } from './login.page';

describe('LoginPage', () => {
  let component: LoginPage;
  let fixture: ComponentFixture<LoginPage>;

  beforeEach(waitForAsync(() => {
    TestBed.configureTestingModule({
      declarations: [LoginPage],
      imports: [IonicModule.forRoot()],
    }).compileComponents();

    fixture = TestBed.createComponent(LoginPage);
    component = fixture.componentInstance;
    fixture.detectChanges();
  }));

  it('should create', () => {
    expect(component).toBeTruthy();
  });
});

[mhartington]

Resolved