added jest dependencies

Author: emin93

__tests__/App.tsx

@@ -0,0 +1,9 @@
+import * as React from "react";
+import "react-native";
+import renderer from "react-test-renderer";
+
+import App from "../src/App";
+
+it("renders correctly", () => {
+    const tree = renderer.create(<App exampleProp="helloWorld" />);
+});

devDependencies.json

@@ -2,7 +2,9 @@
     "typescript",
     "tslint",
     "tslint-react",
+    "react-native-typescript-transformer",
+    "ts-jest",
     "@types/react",
     "@types/react-native",
-    "react-native-typescript-transformer"
+    "@types/jest"
 ]

index.js

@@ -1,4 +1,4 @@
 import { AppRegistry } from 'react-native';
-import App from './lib/App';
+import App from './src/App';
 
 AppRegistry.registerComponent('HelloWorld', () => App);

setup.js

@@ -13,9 +13,12 @@ packageJson.scripts.lint = 'tslint -c tslint.json "src/**/*.{ts,tsx}"';
 writeFile('package.json', JSON.stringify(packageJson, null, 2));
 
 execSync(`npm i ${devDependencies.join(' ')} --save-dev --save-exact`);
+execSync(`npm uninstall babel-jest babel-preset-react-native --save`);
 
 deleteFile('App.js');
+deleteFile('__tests__/App.js');
 deleteFile('.flowconfig');
+deleteFile('.babelrc');
 deleteFile('devDependencies.json');
 deleteFile('README.md');
 deleteFile('LICENSE');