TypeScript 2.x By Example

Writing the test case

The first step being the import statements, we will be importing the Trello service and Board class. Also, because we know that our HTTP returns a promise, which is basically a wrapper around the observables, we will import those as well, as shown in the following snippet:

import {TrelloService} from './trello.service';import { Observable } from 'rxjs/Observable';import { Board } from '../model/board';