Jenkins XVnc Plugin

Linux下的Jenkins裏配置Webdriver項目會碰到以下錯誤

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

主要是由於webdriver須要一個虛擬的GUI來運行瀏覽器， 查了網上的資料，大多數都說用Xvfb， 配置裏還須要有export DISPLAY=:1

但是我又碰到了新的錯誤即便配置了DISPLAY

Error: cannot open display: :1

感受Xvfb使用比較麻煩，特別是個人機器還不是官方的Ubuntu， Red hat能夠參考下面兩篇文章

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/

最後找到還有一個虛擬UI就是VNC， Jenkins XVnc Plugin，使用很是簡單，安裝後在項目的config裏勾選「Run Xvnc during build」就能夠了，

服務端安裝

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