testing.md

Testing

We use a custom runner for testing.

How to

Run webpack dev server

npm test:serve

Open another terminal and Run test runner

npm test:run

Then, runner will track changes from **.spec.js files in specs directory and its dependencies and run the needed test.

**.spec.js

Spec file should export test method to default.

import assert from 'assert'
import StorageManager from 'main/lib/StorageManager'

export default t => {
  assert.ok(true)
}

Mocking

On test environment, babel-plugin-rewire is enabled.

You can replace any dependencies of a module by __Rewire__ method.

import loadAllStorages from 'main/lib/data/loadAllStorages'

const storageMock = require('storageMock')
loadAllStorages.__Rewire__('localStorage', storageMock)