perf: Tests are written in typescript

Author: KnisterPeter

Diff for: .gitignore

@@ -1,3 +1,4 @@
 /index.js
 /node_modules
 *.js.map
+/tests/*-test.js

Diff for: package.json

@@ -7,6 +7,8 @@
     "react2dts": "cli.js"
   },
   "scripts": {
+    "clean": "rm -f index.js index.js.map tests/*.js tests/*.js.map",
+    "prebuild": "npm run clean",
     "build": "tsc",
     "pretest": "npm run build",
     "test": "mocha -r babel-register 'tests/**/*-test.js'",

Diff for: tests/component-test.js renamed to tests/component-test.ts

@@ -4,8 +4,8 @@ import * as path from 'path';
 
 import * as react2dts from '../index';
 
-describe('Parsing', function() {
-  it('should create definition from simple component', function() {
+describe('Parsing', () => {
+  it('should create definition from simple component', () => {
     assert.equal(
       react2dts.generateFromFile('simple-component', path.join(__dirname, 'simple-component.jsx')), 
       fs.readFileSync(path.join(__dirname, 'simple-component.d.ts')).toString()

Diff for: tsconfig.json

@@ -7,6 +7,7 @@
   },
   "files": [
     "typings/tsd.d.ts",
-    "index.ts"
+    "index.ts",
+    "tests/component-test.ts"
   ]
 }