Upgrades the renderer tests to ts.

Author: skellock

package-lock.json

@@ -53,10 +53,11 @@
   "description": "An electron starter project.",
   "devDependencies": {
     "@types/electron-store": "1.2.0",
-    "@types/mockery": "^1.4.29",
+    "@types/mockery": "1.4.29",
     "@types/mousetrap": "1.5.34",
     "@types/react": "15.0.38",
     "@types/react-dom": "15.5.2",
+    "@types/react-test-renderer": "15.5.2",
     "@types/sinon": "2.3.3",
     "ava": "0.21.0",
     "babel-preset-react": "6.24.1",

package.json

@@ -1,7 +1,7 @@
-const React = require('react')
-const { test } = require('ava')
-const { create } = require('react-test-renderer')
-const { Text } = require('./text')
+import * as React from 'react'
+import { test } from 'ava'
+import { create } from 'react-test-renderer'
+import { Text } from './text'
 
 test('Text can be prop-less.', t => {
   const c = <Text />