added karma

Author: Malte W

karma.conf.js

@@ -0,0 +1,34 @@
+/* eslint no-var: 0, no-unused-vars: 0 */
+var path = require('path');
+var webpack = require('webpack');
+
+module.exports = function karmaConfig(config) {
+    config.set({
+        browsers: [ 'Chrome' ],
+        singleRun: true,
+        // autoWatch: true,
+        frameworks: [ 'mocha' ],
+        files: [ './test.js' ],
+        preprocessors: {
+            './test.js': [ 'webpack', 'sourcemap' ]
+        },
+        reporters: [ 'mocha' ],
+        webpack: {
+            devtool: 'inline-source-map',
+            resolve: {
+                root: path.resolve(__dirname, './src')
+            },
+            module: {
+                loaders: [{
+                    test: /\.js$/,
+                    loader: 'babel',
+                    exclude: /(node_modules)/
+                }]
+            }
+        },
+        // webpackMiddleware: {
+        //     noInfo: true,
+        //     watchOptions: { poll: 3000 }
+        // }
+    });
+};

package.json

@@ -8,8 +8,8 @@
     "build": "babel src --out-dir lib",
     "build:umd": "webpack src/index.js dist/react-custom-scrollbars.js && NODE_ENV=production webpack src/index.js dist/react-custom-scrollbars.min.js",
     "lint": "eslint src test examples",
-    "test": "NODE_ENV=test mocha --compilers js:babel-register --recursive",
-    "test:watch": "NODE_ENV=test mocha --compilers js:babel-register --recursive --watch",
+    "test": "NODE_ENV=test karma start",
+    "test:watch": "NODE_ENV=test karma start --auto-watch --no-single-run",
     "prepublish": "npm run lint && npm run test && npm run clean && npm run build"
   },
   "repository": {
@@ -44,6 +44,13 @@
     "eslint-config-airbnb": "^0.1.0",
     "eslint-plugin-react": "^3.5.1",
     "expect": "^1.6.0",
+    "karma": "^0.13.10",
+    "karma-chrome-launcher": "^0.2.1",
+    "karma-cli": "^0.1.1",
+    "karma-mocha": "^0.2.0",
+    "karma-mocha-reporter": "^1.0.3",
+    "karma-sourcemap-loader": "^0.3.6",
+    "karma-webpack": "^1.6.0",
     "mocha": "^2.2.5",
     "react": "^0.14.3",
     "react-dom": "^0.14.3",

test.js

@@ -0,0 +1,5 @@
+import expect from 'expect';
+window.expect = expect;
+
+const context = require.context('./test', true, /.*\.js$/);
+context.keys().forEach(context);