babel-plugin-s2s-reducer-test-case

create reducer test using switch/case

Usage no npm install needed!

<script type="module">
  import babelPluginS2sReducerTestCase from 'https://cdn.skypack.dev/babel-plugin-s2s-reducer-test-case';
</script>

README

babel-plugin-s2s-reducer-test-case

styled with prettier

s2s plugin: create reducr test case from reducer.js

Install

$ npm install --save-dev babel-plugin-s2s-state-root

Example

reducer.js

import * as Actions from './actionTypes'

export const initialState = {
  count: 0,
}

export default function(state = initialState, action) {
  switch (action.type) {
    case Actions.INCREMENT:
      return { count: state + 1 }
    case Actions.DECREMENT:
      return { count: state - 1 }
    default:
      return state
  }
}

IN:

import reducer, { initialState } from './actions'

OUT:

import reducer, { initialState } from './actions'

test('handle INCREMENT', () => {
  expect(actions.increment()).toEqual({ count: 0 })
})

test('handle DECREMENT', () => {
  expect(actions.decrement()).toEqual({ count: 0 })
})

And, Just change {count: 0} → {count: 1}.

Usage

{
  ['s2s-reducer-test-case']
}

from

type: string
required: true

reducer.js path

If you use s2s, you don't use this option.