unit-testing a method that contains a promise in it

[Kiflemariam Andom]

Angular 2. My component contains the following piece of code:

export class SectorComponent implements OnInit {

let myList = [];
let loading = false;

refresh(){
this.loading = true;
const that : any = this;
this.dataService.products().subscribe(products=>{
   
that.myList= products;
console.log(that.myList);
that.loading = false;
});


}

}

the refresh() method is called from a button. Now I want to unit test it. the dataService is mocked to return a set of products. In my test, I want to see the corre

  it("should get products", () => {
    component.refresh();
    console.log('total found', component.myList.length)
    expect(component.myList.length).toEqual(1);
  });

the test fails because myList is always 1 while console.log(that.myList) returns 1. I am almost sure it is related to the expect() happening before observable is complete. How do I go handle it please?

[Kiflemariam Andom]

oh never mind, solved it with (done). Cant believe it.

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