What is TestBed in Jasmine
Please call "TestBed.compileComponents" before your test
This call is required when testing components using templateUrl
Error: Cannot create the component AppComponent as it was not imported into the testing module!
You need to configure the TestBed
before each test, adding any components, modules and services you need for the test. It's just like configuring an regular @NgModule
from scratch, but you just add what you need.
import { async, TestBed } from '@angular/core/testing';
beforeEach(async(() => {
TestBed.configureTestingModule({
declarations: [ AppComponent ],
providers: [],
imports: []
})
.compileComponents();
}));
it('...', () => {
let fixture = TestBed.createComponent(AppComponent);
});
See Also
- Angular testing docs for many more complete examples.
fruitjs
I am a frontend developer, I am working for Zensar India as frontend lead. I also run youtube channel where I put UI technologies related tutorials.
Updated on August 18, 2022Comments
-
fruitjs over 1 year
I am new to Jasmine with Angular 2, I am frequently working with the TestBed object when writting a Testcase and getting the error:
Please call "TestBed.compileComponents" before your test.
How do I solve this error?
@Component({ moduleId:module.id, selector: 'my-app', templateUrl: 'app-component.html', })