Jenkins XVnc Plugin

Linux下的Jenkins里配置Webdriver项目会碰到如下错误

org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output:

Error: no display specified

Error: no display specified

主要是因为webdriver需要一个虚拟的GUI来运行浏览器， 查了网上的资料，大多数都说用Xvfb， 配置里还需要有export DISPLAY=:1

可是我又碰到了新的错误即使配置了DISPLAY

Error: cannot open display: :1

感觉Xvfb使用比较麻烦，特别是我的机器还不是官方的Ubuntu， Red hat可以参考下面两篇文章

Running headless WebDriver tests with Firefox 10, Xvfb and Jenkins (all on RHEL 6)

http://www.jpalomaki.fi/?p=403 

Running headless webdriver based selenium junit tests inside jenkins under ubuntu linux

http://ralf.schaeftlein.de/2012/05/26/running-headless-webdriver-based-selenium-junit-tests-inside-jenkins-under-ubuntu-linux/

最后找到还有一个虚拟UI就是VNC， Jenkins XVnc Plugin，使用非常简单，安装后在项目的config里勾选“Run Xvnc during build”就可以了，

服务端安装

sudo apt-get install vnc4server
# Now start the VNC server once as the jenkins user and give it a password,
# otherwise it'll try to ask Jenkins
sudo su jenkins
vncserver
[enter password: vncserver]
Ctrl-C

Testing with Selenium 2 / WebDriver, Firefox, Jenkins and Linux

http://fuzzydb.blogspot.tw/2011/08/testing-with-selenium-2-webdriver.html