It looks like this repository is no longer maintained, but just in case someone is still reading this, it would be nice if the Enzyme/Jest test example actually followed the Enzyme/Jest instructions, which:

1. Use a jest.config.js file (the example doesn't)
2. Add a setupTestFrameworkScriptFile entry to that config, and have it point to a setupTests.js file (the example also lacks this file)
3. require in both enzyme.configure and enzyme-adapter-react-16 (or a different adapter for older Reacts)
4. Call configure and pass it a new enzyme-adapter-react-16 adapter.

Honestly getting all that setup right seems more difficult (and thus more in need of a proper example) than the stuff the example does demonstrate.

Hello!
I was reading through the documentation and while taking a look at the tests I found this little bugger:
expect(mount(<Foo />).find('.foo').length).toBe(1); where length should be length() ? Im more than happy to fix it. Its tiny. Like me.

You only have one test "expect(true).toBe(true);"

As soon as I uncomment the "expect(shallow..." lines it breaks with various errors.