@fitch-digital/fitch-create-app/templates/parcel/__tests__/unit/app/api/index.js

Boilerplate templates for FITCH projects

import React from 'react';
import axios from 'axios';
import { fetchData } from 'app/api/index.js';

jest.mock('axios');

describe('fetchData', () => {
    it('fetches successfully data from an API', async () => {
        const data = {
            objectID: '1',
            title: 'a',
        };

        axios.get.mockImplementationOnce(() => Promise.resolve(data));
        await expect(fetchData('react')).resolves.toEqual(data);
    });

    it('fetches erroneously data from an API', async () => {
        const errorMessage = 'Network Error';

        axios.get.mockImplementationOnce(() =>
            Promise.reject(new Error(errorMessage))
        );

        await expect(fetchData('react')).rejects.toThrow(errorMessage);
    });
});