Angular 12 Testcase

Environments

dev - Development QA - environment is used by testers, QA analysts or other testing professionals to perform many forms of functional and non-functional testing. SI - System Integrator - first test of components running on different (virtual) servers actually talking together as planned ST - Staging - a live-like environment where a final sanity test happens before we push to live UAT - User acceptance testing - also called staging environments—allow the application's main users to test new features before they are pushed into the production environment. Prod - Production - real, paying users run the code on here.

Ng-India

https://www.youtube.com/watch?v=caYgrkXCG5s https://www.youtube.com/watch?v=Yaimk5Z22sA

Authtoken

https://jasonwatmore.com/post/2020/09/21/angular-10-facebook-login-tutorial-example https://www.angulararchitects.io/aktuelles/authentication-in-angular-2-with-oauth2-oidc/

API URLs

1. https://reqres.in/
2. https://apipheny.io/free-api/
3. https://gorest.co.in/

Angular Http Caching using Interceptor and Refresh

https://www.youtube.com/watch?v=y921lgvICnQ https://netbasal.com/testing-asynchronous-code-in-angular-using-fakeasync-fc777f86ed13

Components Testacse

1. user

Directives Testacse

1. Bgcolor change Directive on click
2. Bgcolor change Directive on mouse hover and mouse out

onKeyDown(event){
    let charCode = String.fromCharCode(event.which).toLowerCase();
    if(event.ctrlKey && charCode === 's'){
      //other actions
      event.preventDefault();
    }
  }

Unit testcase

describe('Testing tests', () => {
  let fixture: ComponentFixture<AppComponent>;
  let component: AppComponent;

  beforeEach(() => {
    TestBed.configureTestingModule({
      declarations: [
        AppComponent
      ]
    }).compileComponents();
  });

  beforeEach(() => {
    fixture = TestBed.createComponent(AppComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

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

  it('should call preventDefault is Ctrl-S is pressed', () => {
    const eventInit: KeyboardEventInit = {
      key: 'S',
      ctrlKey: true
    };
    eventInit['keyCode'] = 83;

    const event = new KeyboardEvent('keydown', eventInit);

    const preventDefaultSpy = spyOn(event, 'preventDefault').and.stub();
    component.onKeyDown(event);

    expect(preventDefaultSpy).toHaveBeenCalled();
  });

  it('should NOT call preventDefault is just S is pressed', () => {
    const eventInit: KeyboardEventInit = {
      key: 'S'
    };
    eventInit['keyCode'] = 83;

    const event = new KeyboardEvent('keydown', eventInit);

    const preventDefaultSpy = spyOn(event, 'preventDefault').and.stub();
    component.onKeyDown(event);

    expect(preventDefaultSpy).not.toHaveBeenCalled();
  });
});

Pipes Testacse

1. truncate

Services Testacse

1. api
2. api-testbed
3. calculator
4. logger

https://testing-angular.com/testing-components-depending-on-services/ https://codehandbook.org/mock-using-spyon-angular-karma/ Part 18 - SpyOn to mock and Stub methods in angular unit test | Angular unit test case Tutorials

https://github.com/angular/angular/blob/main/aio/content/examples/testing/src/app/model/hero.service.spec.ts

https://braydoncoyer.dev/blog/how-to-unit-test-an-http-service-in-angular https://www.dotnetcurry.com/angularjs/unit-testing-angular-services

https://www.scaler.com/topics/angular/angular-interceptor/ https://javascript.plainenglish.io/angular-handle-http-errors-using-interceptors-5cc483103740

https://www.youtube.com/watch?v=YJ4dgoHEmGs https://armno.medium.com/til-mocking-localstorage-and-sessionstorage-in-angular-unit-tests-a765abdc9d87

https://github.com/Marisha-tech/AngularBlogTest