You've written your
create-react-app application using absolute imports resolved from e.g. a folder named
src but when you run your tests you get a message like this:
You may have configured Webpack or the TypeScript compiler to resolve absolute imports from the
src folder but Jest doesn't yet know about that configuration.
You can tell Jest about your absolute import resolution strategy by passing another option to the default
test script. Specifically, it's Jest's
modulePaths option that makes this possible.
To use Jest's
modulePaths option, add
--modulePaths=src to the end of the
test script in your
package.json. If your imports resolve from the
src folder, for example, you would change the script to this:
Although the image above shows the option being passed to
react-scripts-ts it should work for regular
react-scripts as well. Now if you run your tests Jest is able to resolve your absolute imports.