working on xvfb tests in docker

Dockerfile

 FROM node:6
 
+# RUN mkdir /tmp/.X11-unix/ && chmod 777 /tmp/.X11-unix/
 RUN apt-get update && apt-get install -y \
   apt-utils \
+  dbus-x11 \
   xvfb
 
 RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
@@ -10,7 +12,7 @@ RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key
   && apt-get install -y google-chrome-stable \
   && google-chrome --version
 
-RUN groupadd -r wechaty && useradd -m -r -g wechaty wechaty -d /wechaty
+# RUN groupadd -r wechaty && useradd -m -r -g wechaty wechaty -d /wechaty
 
 WORKDIR /wechaty
 COPY package.json .
@@ -23,5 +25,5 @@ RUN npm link \
 ENTRYPOINT [ "/wechaty/entrypoint.sh" ]
 CMD [ "start" ]
 
-RUN chown -R wechaty.wechaty /wechaty
-USER wechaty
+# RUN chown -R wechaty.wechaty /wechaty
+# USER wechaty

entrypoint.sh

@@ -3,7 +3,9 @@
 # Credit: https://github.com/cusspvz/node.docker/blob/master/entrypoint
 #
 
-echo "Docker Starting Wechaty v$(wechaty-version)"
+echo
+echo "Starting Wechaty v$(wechaty-version) ..."
+echo
 
 # to identify run env (for tests)
 export WECHATY_DOCKER='docker'
@@ -15,7 +17,7 @@ echo "WECHATY_HEAD=$WECHATY_HEAD"
 
 if [ "$WECHATY_HEAD" != "phantomjs" ]; then
   export DISPLAY=':99.0'
-  Xvfb :99 -screen 0 1024x768x24 &
+  Xvfb :99 -ac -screen 0 640x480x8 -nolisten tcp &
   echo "Xvfb started on DISPLAY=$DISPLAY"
 fi
 

package.json

@@ -15,7 +15,7 @@
     "pretest": "npm run lint",
     "start": "node bin/io-bot",
     "demo": "node example/ding-dong-bot.js",
-    "test": "cross-env LC_ALL=C WECHATY_LOG=info ava --timeout=10m \"{src,test}/**/*.spec.js\"",
+    "test": "cross-env LC_ALL=C WECHATY_LOG=info ava --serial --timeout=10m \"{src,test}/**/*.spec.js\"",
     "testdev": "cross-env LC_ALL=C WECHATY_LOG=silly ava --verbose --fail-fast --timeout=3m"
   },
   "repository": {

script/start-xvfb.sh

@@ -8,6 +8,9 @@
 [ "$DISPLAY" = "" ] && {
 	export DISPLAY=':99.0'
 	echo "Set DISPLAY to $DISPLAY"
+}
+
+[ "$(ps a | grep Xvfb | grep -v grep | wc -l)" = 0 ] && {
 	Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
 	echo "Xvfb started"