Tag: babel-jest

Unable to run JEST test

babel-jest javascript jestjs node.js reactjs

I’m facing an issue when I try to import something using require() function in jest test file. script2.test.js Package.json babel.config.cjs I’m getting following errors when I run the test using npm test I’m new to JEST, any help is much appreciated. My Node version is 14.17.3 Thanks you. Answer It seems that one still needs to jump through the hoops

SyntaxError: Unexpected token ‘<' on shallow render with Enzyme and Jest in React

babel-jest enzyme javascript jestjs reactjs

I am running tests with jest and enzyme in my React application, and while my simple sanity check test (2+2 expect 4) works, this error is thrown when I go to shallow render a component. It also throws when I try to replace shallow() with render() Here is the app.test.js file: babel.config.js: EDIT : I added babel-jest and now this

Mocking globals in Jest

babel-jest dependencies javascript jestjs unit-testing

Is there any way in Jest to mock global objects, such as navigator, or Image*? I’ve pretty much given up on this, and left it up to a series of mockable utility methods. For example: Testing this tiny function is simple, but crufty and not deterministic at all. I can get 75% of the way there, but this is about