Added async props test (#9)

test/fixtures/basic/pages/async-props.js

@@ -0,0 +1,18 @@
+import React from 'react'
+
+export default class AsyncProps extends React.Component {
+  static async getInitialProps () {
+    return await AsyncProps.fetchData()
+  }
+
+  static fetchData () {
+    const p = new Promise(resolve => {
+      setTimeout(() => resolve({ name: 'Diego Milito' }), 10)
+    })
+    return p
+  }
+
+  render () {
+    return <p>{this.props.name}</p>
+  }
+}

test/index.js

@@ -19,7 +19,7 @@ test(async t => {
 })
 
 test(async t => {
-  const html = await (render('/stateful'))
+  const html = await render('/stateful')
   t.true(html.includes('<div><p>The answer is 42</p></div>'))
 })
 
@@ -29,6 +29,11 @@ test(async t => {
   t.true(html.includes('<div><h1>I can haz meta tags</h1></div>'))
 })
 
+test(async t => {
+  const html = await render('/async-props')
+  t.true(html.includes('<p>Diego Milito</p>'))
+})
+
 function render (url, ctx) {
   return _render(url, ctx, { dir, staticMarkup: true })
 }