diff --git a/karma.conf.js b/karma.conf.js
index 42b2337..118f095 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -1,10 +1,17 @@
+const webpackEnv = {test: true}
+const webpackConfig = require('./webpack.config.babel')(webpackEnv)
+const fileGlob = 'src/**/*.test.js'
+
 module.exports = config => {
   config.set({
     basePath: '',
     frameworks: ['mocha', 'chai'],
-    files: [
-      'src/**/*.test.js',
-    ],
+    files: [fileGlob],
+    preprocessors: {
+      [fileGlob]: ['webpack']
+    },
+    webpack: webpackConfig,
+    webpackMiddleware: {noInfo: true},
     reporters: ['progress'],
     port: 9876,
     colors: true,
diff --git a/package.json b/package.json
index 654ece5..825659f 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
     "karma-chai": "0.1.0",
     "karma-chrome-launcher": "1.0.1",
     "karma-mocha": "1.1.1",
+    "karma-webpack": "1.7.0",
     "mocha": "3.0.1",
     "npm-run-all": "2.3.0",
     "opt-cli": "1.5.1",
diff --git a/src/controller.test.js b/src/controller.test.js
index 00436bc..ba67dc9 100644
--- a/src/controller.test.js
+++ b/src/controller.test.js
@@ -1,8 +1,7 @@
-describe('test', () => {
-  it('works', () => {
-    expect(true).to.be.true
-  })
-  it('works again', () => {
-    expect('hi').to.equal('hi')
+var Controller = require('./controller')
+
+describe('controller', () => {
+  it('exists', () => {
+    expect(Controller).to.exist
   })
 })