Testing the GET method in an Angular service: A guide

I'm currently facing an issue with my service method and unit test setup. Despite writing a unit test for the getter method, the coverage report indicates that this method is not covered. I would appreciate any advice on what might be going wrong in my unit test implementation.

export class ItemService{
#item: Item;
  get item(): Item{
    return this.#item;
  }
}
import itemMock from '../mocks/item-response.json';
describe('ItemService', () => {
  let itemService: ItemService;
  it('should get item information', () => {
      itemService['#item'] = itemMock ;
      spyOnProperty(itemService, 'item').and.returnValue(itemMock);
      expect(itemService['#item']).toEqual(itemMock );
  });
}

Answer №1

It seems that the issue lies in your spy function replacing the getter, which is why it is not being called. Perhaps consider a different approach and only monitor the private property without using the Spy?

Answer №2

verify(itemService.item).isSameAs(itemMock);

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