@molgenis/molgenis-vue-test-utils

molgenis-vue-test-utils

Testing utilities for Vue and Vuex Javascript unit tests

Installation

NPM

npm install @molgenis/molgenis-vue-test-utils --save

Yarn

yarn add @molgenis/molgenis-vue-test-utils

Usage

Import in your HTML

<script src="path/to/molgenis-vue-test-utils.js"></script>

Import as ES6 module

import utils from '@molgenis/molgenis-vue-test-utils'

utils.testAction(...)

CommonJS import

const utils = require('@molgenis/molgenis-vue-test-utils/dist/molgenis-vue-test-utils.js')

utils.testAction(...)

Examples

// actions.js

import api from 'whatever-you-use-as-api'
export const GET_A_NICE_RESPONSE = '__GET_A_NICE_RESPONSE__'

export default {
  [GET_A_NICE_RESPONSE] ({commit}, id) {
    api.get('/api/response/' + id).then(response => {
      commit(SET_RESPONSE, response)
    }
  }
}
 
// actions.spec.js
 
import td from 'testdouble'
import api from 'whatever-you-use-as-api'
import { testAction } from '@molgenis/molgenis-js-test-utils'
import actions from 'store/actions'
 
it('call an api, and call a mutation with the response', done => {
  const response = 'got a nice response'
  
  const get = td.function('api.get')
  td.when(get('/api/response/my_id')).thenResolve(response)
  td.replace(api, 'get', get)
 
  const options = {
    payload: 'my_id',
    expectedMutations: [
      {type: SET_RESPONSE, payload: response}
    ]
  }
  testAction(actions.__GET_NICE_RESPONSE__, options, done)
})

Methods

Method	Description
utils.testAction(action, options, done)	Test a Vuex action

Options

The options object that can be supplied to the testAction function can contain the following parameters

Parameter	Description	Default value
payload	a JS object or string or number to pass to the action being tested	null
state	the state used by the action being tested	{}
expectedMutations	an array of object{type:..., payload:...} describing all the mutations that are committed by the action being tested	[]
expectedActions	an array of object{type:..., payload:...} describing all the actions that are dispatched by the action being tested	[]
getters	an object containing getter functions as keys, and their expected return value as value. Use this to mock getters in your actions	{}

Contributing

This project uses Yarn for development, uses Mocha for testing and is compiled with Rollup

To get started: yarn install

To build: yarn build

To test: yarn test

To test with coverage: yarn test:cover

To get coverage: yarn coveralls

To lint: yarn lint

To debug: first add node-inspector: npm install -g node-inspector then run: yarn debug