Unit Testing Angular Observables

Question

I am new to testing world and I have just started writing unit tests for an existing Angular 2 code. I have a function confirmDelete which returns Obserable&l

Answer 1

I've built off of peeskillet's answer. The p-confirmDialog component calls the subscribe of the service, so I had to added requireConfirmationSource, which I found in the PrimeNg source. My mock is as follows:

//
import { Subject } from 'rxjs/Subject';
import { Observable } from 'rxjs/Observable';
//
export class ConfirmationServiceMock {
    public key: string = 'mock1';
    public header: string = 'Delete Confirmation';
    public icon: string = '';
    public message: string = '';
    //  Call Accept to emulate a user accepting
    public accept: Function;
    //  Call Reject to emulate a user rejecting
    public reject: Function;
    private requireConfirmationSource = new Subject();
    requireConfirmation$ = this.requireConfirmationSource.asObservable();
    //
    public confirm(config: any) {
        console.log( 'In confirm service mock...' );
        this.message = config.message;
        this.accept = config.accept;
        this.reject = config.reject;
        console.log( this.message );
        return this;
    }
}
//