Adds karma test suite

karma.conf.js

@@ -0,0 +1,23 @@
+module.exports = function(karma) {
+    karma.set({
+        plugins: ['karma-browserify', 'karma-chai', 'karma-mocha', 'karma-phantomjs-launcher'],
+
+        frameworks: ['browserify', 'chai', 'mocha'],
+
+        files: [
+            'src/**/*.js',
+            'test/**/*.js'
+        ],
+        preprocessors: {
+            'src/**/*.js' : ['browserify'],
+            'test/**/*.js': ['browserify']
+        },
+
+        browserify: {
+            debug: true,
+            transform: ['babelify']
+        },
+
+        browsers: ['PhantomJS']
+    });
+}