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/**
* Test the request function
*/
import 'whatwg-fetch';
import request from '../request';
describe('request', () => {
// Before each test, stub the fetch function
beforeEach(() => {
window.fetch = jest.fn();
});
describe('stubbing successful response', () => {
// Before each test, pretend we got a successful response
beforeEach(() => {
const res = new Response('{"hello":"world"}', {
status: 200,
headers: {
'Content-type': 'application/json',
},
});
window.fetch.mockReturnValue(Promise.resolve(res));
});
it('should format the response correctly', done => {
request('/thisurliscorrect')
.catch(done)
.then(json => {
expect(json.hello).toBe('world');
done();
});
});
});
describe('stubbing 204 response', () => {
// Before each test, pretend we got a successful response
beforeEach(() => {
const res = new Response('', {
status: 204,
statusText: 'No Content',
});
window.fetch.mockReturnValue(Promise.resolve(res));
});
it('should return null on 204 response', done => {
request('/thisurliscorrect')
.catch(done)
.then(json => {
expect(json).toBeNull();
done();
});
});
});
describe('stubbing error response', () => {
// Before each test, pretend we got an unsuccessful response
beforeEach(() => {
const res = new Response('', {
status: 404,
statusText: 'Not Found',
headers: {
'Content-type': 'application/json',
},
});
window.fetch.mockReturnValue(Promise.resolve(res));
});
it('should catch errors', done => {
request('/thisdoesntexist').catch(err => {
expect(err.response.status).toBe(404);
expect(err.response.statusText).toBe('Not Found');
done();
});
});
});
});
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