Test Vue with Jest fail, Jest encountered an unexpected token, SyntaxError: Unexpected token import

Question

I test Vue project with jest, bug I got errors says:

Jest encountered an unexpected token and SyntaxError: Unexpected token import

Answer 1

Most probably when updating package dependency, "babel-core" dependency may have been updated to 6.xx.x, it should be "7.0.0-bridge.0" for jest to work.

Reference: https://github.com/vuejs/vue-cli/issues/1879#issuecomment-412300256 https://github.com/vuejs/vue-cli/issues/1879#issuecomment-435194932

Answer 2

I had a similar problem and "babel-plugin-transform-es2015-modules-commonjs" is working for me

npm i -D babel-plugin-transform-es2015-modules-commonjs

.babelrc config "plugins":["transform-es2015-modules-commonjs"]