This is a small example front-end React based application with testing set up so that we have mocking of dependencies through babel-rewire-plugin and code coverage through babel-plugin-istanbul.
It's using Karma as test-runner with Jasmine as testing framework.
There is one file which is untested to make sure also those files are included in the output.
To run the tests:
npm run test
To see the code coverage:
open coverage/PhantomJS\ 2.1.1\ \(Mac\ OS\ X\ 0.0.0\)/index.html