test.js

var humanize = require('./lib/humanize')
var storage = require('./lib/storage')
var renderContent = require('./lib/renderContent')

describe('humanize', () => {
  it('formats the date', done => {
    if (
      humanize.prettyDate('2017-03-28T13:42:09.3233868') !== '2017-03-28 13:42'
    )
      return done('format is incorrect')

    done()
  })

  it('displays a timespan', done => {
    if (humanize(new Date()) !== '0 seconds') return done('format is incorrect')

    done()
  })

  it('displays a timespan for a day', done => {
    if (humanize(addDays(-1)) !== '1 day') return done('format is incorrect')

    done()
  })
})

describe('storage', () => {
  it('polyfills localstorage', done => {
    if (storage.get('foo')) return done('expected null')

    storage.put('foo', 'bar')

    if ('bar' !== storage.get('foo')) return done('expected bar')

    storage.del('foo')

    if (storage.get('foo')) return done('expected value to be deleted')

    done()
  })
})

describe('memStorage', () => {
  it('a local memory store', done => {
    if (storage.get('foo')) return done('expected null')

    storage.put('foo', 'bar')

    if ('bar' !== storage.get('foo')) return done('expected bar')

    storage.del('foo')

    if (storage.get('foo')) return done('expected value to be deleted')

    done()
  })
})

describe('renderContent', () => {
  it('renders markdown', done => {
    var content = renderContent('# Hello World')
    if ('<h1 id="hello-world">Hello World</h1>\n' !== content)
      return done(`content not rendered correctly (${content})`)

    done()
  })

  it('renders emoji', done => {
    var content = renderContent(':sparkles:')
    if ('<p>✨</p>\n' !== content)
      return done(`content not rendered correctly (${content})`)

    done()
  })
})

function addDays(days) {
  var date = new Date()
  date.setDate(date.getDate() + days)
  return date
}