test/actions/quiz.spec.js
import expect from 'expect'
import * as actions from '../../actions'
describe('Quiz actions', () => {
it('setStartingLetter should create SET_STARTING_LETTER action', () => {
expect(actions.setStartingLetter('A')).toEqual({
type: 'SET_STARTING_LETTER',
letter: 'A'
})
})
})