Jest - Test Gives An Error Typeerror: Cannot Read Property 'then' Of Undefined

When i the run test it gives me an error TypeError: Cannot read property 'then' of undefined, I've tried to look for some fix on the Docs but i didn't find one to fix this issue, a

Solution 1:

Be sure to return the promise from the anonymous function inside getContacts():

exportfunctiongetContacts() {
  returnfunction(dispatch) {
    dispatch({type: 'GET_CONTACTS_PENDING'})
    axios.get('http://127.0.0.1:8000/api/contacts', { // THIS LINE
    })
    ...

Change this:

axios.get('http://127.0.0.1:8000/api/contacts', {

to this:

return axios.get('http://127.0.0.1:8000/api/contacts', {

Right now it lacks a return statement and so returns undefined.