calculator 
Plain calculator mirco app in HTML/CSS/JS.
Getting started
Setting up environemt
node@8, npm@5 or yarn@stable
npm install or yarn install
Fire up server
gulp start or gulp s
Run tests
npm test
Build assets
gulp assets or gulp a
Architecture
We use flux as its architecture pattern:
Tests structure
Unit tests live in the same folder of source file. e.g. calculator_store.js and calculator_store.test.js.
jest src for short.
Functional tests are defined in tests/functional folder.
jest functional or jest fun for short.
No integration tests: functional + unit tests should cover it.
Jest coverage report are created at tests/coverage.