Full stack developer building things to make life a little easier. Huge fan of JavaScript, React, Node.js, and testing my code. • twitter.com/ZakLaughton • zaklaughton.dev
That should at least pass type checking and give you the auto-complete in your editor for mock functions. This should be good enough to at least get it working. If I remember correctly though, it won't actually check the types on the resolved value, so fakeResp could be any type, even if it doesn't match the return type of Users.all(). You'll also have to add as jest.Mock everywhere you call axios.get
If you want stricter typing for this without needing to cast as jest.Mock each time, I've had a great experience with ts-jest. Looks like they've updated a lot since I used it last, so I can't give a syntax example, but you can check out their docs.
tl;dr: use (axios.get as jest.Mock) for generic mock function types, or use a tool like ts-jest for stricter types of that specific mock function.
Thank you so much! Was finally able to get the test passing! The trick of using (axios.get as jest.Mock) was the key to letting me debug this thoroughly.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Ah, got it! Yeah, how to type mock functions is not immediately clear. Try this:
That should at least pass type checking and give you the auto-complete in your editor for mock functions. This should be good enough to at least get it working. If I remember correctly though, it won't actually check the types on the resolved value, so
fakeRespcould be any type, even if it doesn't match the return type ofUsers.all(). You'll also have to addas jest.Mockeverywhere you call axios.getIf you want stricter typing for this without needing to cast as jest.Mock each time, I've had a great experience with ts-jest. Looks like they've updated a lot since I used it last, so I can't give a syntax example, but you can check out their docs.
tl;dr: use
(axios.get as jest.Mock)for generic mock function types, or use a tool like ts-jest for stricter types of that specific mock function.Thank you so much! Was finally able to get the test passing! The trick of using
(axios.get as jest.Mock)was the key to letting me debug this thoroughly.