Selenium Headless Automated Testing

关于ubuntu的介绍如下：

1. 如果使用的是yum源系统，安装如下的包：

yum install xorg-x11-server-Xvfb.x86_64

2. 然后执行如下，启动xvfb服务：

Xvfb :10 -ac

3. 在系统中以headless方式启动centos

export DISPLAY=:10

firefox

4.  执行selenium测试：

python code 如下：

```

from selenium import webdriver

from selenium.common.exceptions import TimeoutException

from selenium.webdriver.support.ui import WebDriverWait # available since 2.4.0

from selenium.webdriver.support import expected_conditions as EC # available since 2.26.0

# Create a new instance of the Firefox driver

driver = webdriver.Firefox()

# go to the baidu home page

driver.get("")

# the page is ajaxy so the title is originally this:

print driver.title

# find the element that's name attribute is q (the baidu search box)

inputElement = driver.find_element_by_name("wd")

# type in the search

inputElement.send_keys("cheese!")

# submit the form (although baidu automatically searches now without submitting)

inputElement.submit()

try:

    # we have to wait for the page to refresh, the last thing that seems to be updated is the title

    WebDriverWait(driver, 10).until(EC.title_contains("cheese!"))

    # You should see "cheese! - baidu Search"

    print driver.title

finally:

        driver.quit()

```

运行如下：

百度一下，你就知道

cheese!_百度搜索