some frontend unit tests

package.json

@@ -9,6 +9,7 @@
   "private": true,
   "scripts": {
     "precommit": "lint-staged",
+    "prepush": "npm test",
     "clean": "rimraf dist",
     "build": "npm run clean && webpack -p",
     "lint": "npm-run-all lint:*",
@@ -23,8 +24,9 @@
     "changelog": "github-changes -o mozilla -r send --only-pulls --use-commit-body --no-merges",
     "contributors": "git shortlog -s | awk -F\\t '{print $2}' > CONTRIBUTORS",
     "release": "npm-run-all contributors changelog",
-    "test": "mocha test/unit",
-    "test:ci": "nyc mocha --reporter=min test/unit",
+    "test": "npm-run-all test:*",
+    "test:backend": "nyc mocha --reporter=min test/unit",
+    "test:frontend": "cross-env NODE_ENV=development node test/frontend/runner.js && nyc report --reporter=html",
     "start": "cross-env NODE_ENV=development webpack-dev-server",
     "prod": "node server/prod.js",
     "cover": "nyc --reporter=html mocha test/unit"
@@ -43,7 +45,7 @@
   },
   "nyc": {
     "reporter": [
-      "text-summary"
+      "text"
     ],
     "cache": true
   },
@@ -53,6 +55,7 @@
   "devDependencies": {
     "babel-core": "^6.26.0",
     "babel-loader": "^7.1.2",
+    "babel-plugin-istanbul": "^4.1.5",
     "babel-plugin-yo-yoify": "^1.0.2",
     "babel-preset-env": "^1.6.1",
     "babel-preset-es2015": "^6.24.1",
@@ -88,11 +91,11 @@
     "postcss-loader": "^2.1.0",
     "prettier": "^1.10.2",
     "proxyquire": "^1.8.0",
+    "puppeteer": "^1.1.0",
     "raven-js": "^3.22.2",
     "redis-mock": "^0.21.0",
     "require-from-string": "^2.0.1",
     "rimraf": "^2.6.2",
-    "selenium-webdriver": "^3.6.0",
     "sinon": "^4.3.0",
     "string-hash": "^1.1.3",
     "stylelint": "^9.0.0",
@@ -102,6 +105,7 @@
     "testpilot-ga": "^0.3.0",
     "val-loader": "^1.1.0",
     "webpack": "^3.11.0",
+    "webpack-dev-middleware": "^2.0.6",
     "webpack-dev-server": "2.9.1",
     "webpack-manifest-plugin": "^1.3.2",
     "webpack-unassert-loader": "^1.2.0"