ci(config): use xvfb in e2e test

.circleci/config.yml

@@ -9,7 +9,6 @@ jobs:
       - run: apt-get -y update
       - run: apt-get -y install libusb-1.0-0-dev graphicsmagick libudev-dev
       - run: apt-get -y install libxtst6 libxss1 libgtk2.0-0 libnss3 libasound2 libgconf-2-4
-      - run: yarn config set registry https://registry.npmjs.org
       - run: yarn install
       - run:
           name: Run Webpack
@@ -20,7 +19,7 @@ jobs:
           command: yarn e2e:serve
           background: true
       - run: yarn wait-on http://localhost:8080 && yarn wait-on http://localhost:18232
-      - run: yarn e2e:run
+      - run: xvfb-run -a yarn e2e:run
 workflows:
   version: 2
   test:

package.json

@@ -45,7 +45,7 @@
     "babel-eslint": "^10.0.1",
     "babel-loader": "^8.0.4",
     "concurrently": "^4.1.0",
-    "create-test-server": "https://github.com/georgelima/create-test-server",
+    "create-test-server": "georgelima/create-test-server",
     "cross-env": "^5.2.0",
     "css-loader": "^1.0.1",
     "docz": "0.13.4",