# Pastebin okcuOznn
describe("getCoverArt", () => {
  it("updates coverArtUrl state", async () => {
    const wrapper = shallow<ListenCard>(<ListenCard {...props} />);
    const instance = wrapper.instance();
    const imageUrl =
      "https://i.scdn.co/image/ab67616d00004851d976f08a9feba38efcafb5ff";

    instance.getCoverArt = jest.fn();

    const spy = jest.fn().mockImplementation(() => {
      return Promise.resolve(imageUrl);
    });
    // eslint-disable-next-line dot-notation
    instance["APIService"].getCoverArt = spy;
    expect(wrapper.state("coverArtUrl")).toBeUndefined();
    await instance.componentDidMount();

    expect(spy).toHaveBeenCalledWith("foo", "bar");
    expect(wrapper.state("coverArtUrl")).toEqual(imageUrl);
  });