block36.ts

beforeEach(() => {
  axios.get = jest.fn();
  axios.post = jest.fn();
});
describe("add task", () => {
  it("maps added task into reponse", () => {
    const task = new Task("task");
    axios.post.mockReturnValueOnce(Promise.resolve({data: task}));
    return expect(TasksApi.addTask("task")).resolves.toEqual(task);
  });

  it("hands error down", () => {
    const error = {};
    axios.post.mockReturnValueOnce(Promise.reject(error));
    return expect(TasksApi.addTask("task")).rejects.toEqual(error);
  });
});