Experiment with using JSX to write tests

jsx-test.js

// @flow

/* globals describe it expect */
import Renderer from 'react-test-renderer'

/** @jsx convert */
const convert = (component, props, children) => {
  const args = { ...props, children }
  return component(args)
}

export const Describe = ({ unit, children }: { children: any, unit: string }) => {
  return describe(unit, children)
}

export const It = ({ description, expect }: { description: string, expect: Function }) => {
  return () => it(description, expect)
}

const foo = (value = 123) => value

Renderer.create(
  <Describe unit={'foo'}>
    <It
      description={'should return default value'}
      expect={() => {
        const expected = 123
        const actual = foo()
        expect(actual).toEqual(expected)
      }}
    />
  </Describe>
)