Don't unit test component methods directly

[reyraa]

Expected behaviour

We' moved all the no presentational logics out of our components and just left them with presentational behaviours.
So, preferred is to look at the component as a black box that we won’t penetrate to test. we’ll check its behaviour from outside. so this makes it a unit test in which unit resembles a component as a whole.
an example of such a test is:

it('should allow to change passphrase field to type="text"', () => {
      expect(wrapper.find('.passphrase input').props().type).to.equal('password');
      wrapper.setState({ showPassphrase: true });
      expect(wrapper.find('.passphrase input').props().type).to.equal('text');
});

Actual behaviour

in some cases we test componentDidMount or other specific method directly using notations like:
wrapper.instance().validateUrl

Steps to reproduce

This, this and this are some samples of this kind of tests.