Simple Karma config

.babelrc

@@ -1,3 +1,3 @@
 {
     "presets": ["es2015"]
-}
+}

karma.conf.js

@@ -0,0 +1,48 @@
+var path = require('path');
+var webpack = require('webpack');
+
+module.exports = function (config) {
+
+  // To specify browsers to test against use BROWSER var and comma separated list:
+  // BROWSER=Firefox,Chrome,Safari,IE npm run test:browser
+  var browsers = process.env.BROWSER ? process.env.BROWSER.split(',') : [ 'Firefox' ];
+
+  config.set({
+
+    browsers: browsers,
+    frameworks: [ 'mocha' ],
+    reporters: [ 'mocha' ],
+
+    files: [
+      'test/index.js'
+    ],
+
+    preprocessors: {
+      'test/index.js': [ 'webpack', 'sourcemap' ]
+    },
+
+    singleRun: true,
+
+    webpack: {
+      devtool: 'inline-source-map',
+      entry: path.join(__dirname, 'test', 'index.js'),
+      module: {
+        preLoaders: [
+          {
+            test: /\.js$/,
+            exclude: /node_modules/,
+            loader: 'babel',
+            query: {
+              presets: ['es2015'],
+              plugins: ['transform-object-assign']
+            }
+          }
+        ]
+      }
+    },
+
+    webpackServer: {
+      noInfo: true
+    },
+  });
+};

package.json

@@ -14,6 +14,7 @@
   "scripts": {
     "build": "mkdir -p lib && babel ./src/index.js --plugins transform-object-assign --out-file ./lib/index.js",
     "test": "mocha --compilers js:babel-core/register --recursive",
+    "test:browser": "karma start",
     "test:cov": "babel-node $(npm bin)/isparta cover $(npm bin)/_mocha -- --recursive",
     "prepublish": "npm run build"
   },
@@ -29,12 +30,23 @@
   "devDependencies": {
     "babel-cli": "^6.1.2",
     "babel-core": "^6.2.1",
+    "babel-loader": "^6.2.0",
     "babel-plugin-transform-object-assign": "^6.0.14",
     "babel-preset-es2015": "^6.1.2",
     "expect": "^1.13.0",
     "history": "^1.13.1",
     "isparta": "^4.0.0",
+    "karma": "^0.13.3",
+    "karma-chrome-launcher": "^0.2.0",
+    "karma-firefox-launcher": "^0.1.7",
+    "karma-ie-launcher": "^0.2.0",
+    "karma-mocha": "^0.2.0",
+    "karma-mocha-reporter": "^1.0.4",
+    "karma-safari-launcher": "^0.1.1",
+    "karma-sourcemap-loader": "^0.3.5",
+    "karma-webpack": "^1.7.0",
     "mocha": "^2.3.4",
-    "redux": "^3.0.4"
+    "redux": "^3.0.4",
+    "webpack": "^1.12.9"
   }
 }