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I'm trying to migrate from AVA to Jest. In AVA you can set ava.setup, in which you set the jsdo… Read more How To Setup Jsdom When Working With Jest

I have this codepiece in my React component, which renders an HTML in the end: new Date(createDate)… Read more How Do I Mock Date.tolocaledatestring In Jest?

Here is the function I am trying to test: index.js: import ThirdParty from 'third-party'; … Read more How Do I Call A Resolve In The Callback Of A Mocked Function?

I'm trying to mock one specific function when using module.exports. How could I test the inner … Read more Jest: How To Mock One Specific Function When Using Module.exports

I'm trying to mock axios.create() because I'm using its instance across the app and obvious… Read more How To Mock Axios.create([config]) Function To Return Its Instance Methods Instead Of Overriding Them With Mock?

The Problem I've been using Jest and Enzyme to write tests for my React components build with t… Read more Can't Get Jest To Work With Styled Components Which Contain Theming

I have a function that writes data to a mongodb, like so: const writeToDB = async (db, data) => … Read more Using Foreach And Async/await, Behaves Different For Node And Jest

I've got a redux action creator that utilizes redux-thunk to do some logic to determine what to… Read more Testing Redux Thunk Action Creator