unit test, scroll left&right

Author: guoxun

karma.conf.js

@@ -0,0 +1,20 @@
+var webpackConfig = require('./webpack.config.js')
+process.env.CHROME_BIN = require('puppeteer').executablePath()
+
+module.exports = function(config) {
+  config.set({
+    frameworks: ['mocha'],
+
+    files: ['test/**/*.spec.js'],
+
+    preprocessors: {
+      '**/*.spec.js': ['webpack', 'sourcemap']
+    },
+
+    webpack: webpackConfig,
+
+    reporters: ['spec'],
+
+    browsers: ['ChromeHeadless']
+  })
+}