Add youtube case

Author: Kikobeats

src/get-data/rules/author.js

@@ -79,5 +79,7 @@ module.exports = [
     .filter((i, el) => $(el).text().trim())
     .first()
     .text()
-  )
+  ),
+
+  wrap($ => $('[class*="user-info"]').text())
 ]

test/web/youtube/index.js

@@ -0,0 +1,17 @@
+'use strict'
+
+const {load: loadJSON} = require('json-future')
+const {resolve} = require('path')
+const {promisify} = require('util')
+const should = require('should')
+const fs = require('fs')
+
+const getMetaData = require('../../..')
+const readFile = promisify(fs.readFile)
+
+it('video', async () => {
+  const html = await readFile(resolve(__dirname, 'input.html'))
+  const json = await loadJSON(resolve(__dirname, 'output.json'))
+  const metadata = await getMetaData(html)
+  should(metadata).be.deepEqual(json)
+})

test/web/youtube/input.html

@@ -0,0 +1,9 @@
+{
+  "author": "Andrew Jrt",
+  "date": "2017-07-07T00:00:00.000Z",
+  "description": "👍 Subscribe - http://bit.do/AndrewJRT 🐦 Twitter - https://twitter.com/andrew_jrt 🎮 Twitch - https://twitch.tv/andrewjrt ❤ Patreon - https://www.patreon.com/a...",
+  "image": "https://i.ytimg.com/vi/GDRd-BFTYIg/maxresdefault.jpg",
+  "publisher": "YouTube",
+  "title": "Overwatch - Huge Massive Fist Punch Man",
+  "url": "https://www.youtube.com/watch?v=GDRd-BFTYIg"
+}