Jest with moxios keeps timing out when I use custom axios instance - unit-testing

Question

I have a service that uses a custom axios instance that I am trying to test but I keep getting an error.
Here is the error:
: Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.
Here is the test:
import moxios from 'moxios';
import NotificationService, { instance } from '../NotificationService';
beforeEach(() => {
moxios.install(instance);
});
afterEach(() => {
moxios.uninstall(instance);
});
const fetchNotifData = {
data: {
bell: false,
rollups: []
}
};
describe('NotificationService.js', () => {
it('returns the bell property', async done => {
const isResolved = true;
const data = await NotificationService.fetchNotifications(isResolved);
moxios.wait(() => {
let request = moxios.requests.mostRecent();
console.log(request);
request
.respondWith({
status: 200,
response: fetchNotifData
})
.then(() => {
console.log(data);
expect(data).toHaveProperty('data.bell');
done();
});
});
});
});
And here is the code that I'm trying to test:
import axios from 'axios';
// hardcoded user guid
const userId = '8c4';
// axios instance with hardcoded url and auth header
export const instance = axios.create({
baseURL: 'hidden',
headers: {
Authorization:
'JWT ey'
});
/**
* Notification Service
* Call these methods from the Notification Vuex Module
*/
export default class NotificationService {
/**
* #GET Gets a list of Notifications for a User
* #returns {AxiosPromise<any>}
* #param query
*/
static async fetchNotifications(query) {
try {
const res = await instance.get(`/rollups/user/${userId}`, {
query: query
});
console.log('NotificationService.fetchNotifications()', res);
return res;
} catch (error) {
console.error(error);
}
}
}
I've tried shortening the jest timeout and that did not work. I think it is moxios not installing the axios instance properly, but I can't find any reason why it wouldn't.
Any help is appreciated, thanks in advance.

Answer 1

have you tried changing the Jest environment settings by adding this to your test file?
/**
* #jest-environment node
*/
import moxios from 'moxios';
...
Jest tends to prevent the requests from going out unless you add that. Either way, I use nock instead of moxios and I recommend it.