Add test framework

README.md

@@ -21,6 +21,13 @@ Run webpack
 npm run-script webpack
 ```
 
+Run tests 
+
+```bash
+npm test
+```
+
+
 Run app
 
 ```bash

package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "webpack": "webpack",
     "start": "electron .",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "mocha"
   },
   "repository": {
     "type": "git",
@@ -26,6 +26,7 @@
     "babel-preset-react": "^6.23.0",
     "css-loader": "^0.26.1",
     "electron": "^1.4.15",
+    "mocha": "^3.2.0",
     "style-loader": "^0.13.1",
     "webpack": "^2.2.1"
   },

test/test.js

@@ -0,0 +1,9 @@
+var assert = require('assert');
+
+describe('Array', function() {
+  describe('#indexOf()', function() {
+    it('should return -1 when the value is not present', function() {
+      assert.equal(-1, [1,2,3].indexOf(4));
+    });
+  });
+});