selenium-webdriver
http://selenium.googlecode.com/git/docs/api/javascript/index.html

下载安装扩展组件：
Chrome chromedriver(.exe)
http://chromedriver.storage.googleapis.com/index.html

Internet Explorer IEDriverServer.exe
http://selenium-release.storage.googleapis.com/index.html

PhantomJS phantomjs(.exe)
http://phantomjs.org/download.html

Opera operadriver(.exe)
https://github.com/operasoftware/operachromiumdriver/releases

Safari SafariDriver.safariextz
http://selenium-release.storage.googleapis.com/index.html

安装selenium-webdriver
cnpm install selenium-webdriver

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install the standalone server

Open a command prompt, navigate to the file location and enter the following command:

java -jar selenium-server-standalone-[version].jar

To run in IE, the command should be as follows:

java -jar selenium-server-standalone-[version].jar -Dbwebdriver.ie.driver=IEDriverServer.exe

写入bat，执行出错：Exception in thread "main" java.lang.NoClassDefFoundError
直接在命令行运行可以。java -jar selenium-server-standalone-2.45.0.jar


//////////////////////////////////////
https://www.npmjs.com/package/selenium-standalone
It will install a selenium-standalone command line that will be able to install selenium server and start firefox, chrome, internet explorer or phantomjs for your tests.

npm install selenium-standalone@latest -g
selenium-standalone install (dos下会下载失败，通过浏览器下载后，复制到C:\Program Files\nodejs\node_modules\selenium-standalone\.selenium\)
selenium-standalone start

//////////////////////////////////////////////
windows7下出错：node-gyp rebuild AttributeError: 'module' object has no attribute 'F_GETFD' gyp ERRor （可以忽略）

下载chromedriver_win32.zip等组件，解压chromedriver.exe到selenium目录，将selenium目录加入path。Mac下可编辑~./.bash_profile：
export PATH=/selenium/web:$PATH

然后运行 . .bash_profile
echo $PATH
看看是否有selenium目录
//////////////////////////////////////////////
windows7下调用IEDriver出错：UnknownError: Unexpected error launching Internet Explorer. Protected Mode setti
ngs are not the same for all zones. Enable Protected Mode must be set to the sam
e value (enabled or disabled) for all zones.

IE浏览器->internet安全选项->取消保护模式

//////////////////////////////////////////////
Error: Could not locate Firefox on the current system

////////////////////////////////
centos7 64下node selenium.js 出错Error: spawn EACCES
把chromedriver chmod 755.

/////////////////////////////////
centos7 64下node selenium-server.js 出错:
The path to the driver executable must be set by the webdriver.chrome.driver system property.

办法
chmod 755 /chromedriver
java -jar selenium-server-standalone-2.35.0.jar -Dwebdriver.chrome.driver="./chromedriver"

/////////////////////////////////
centos7 64下node selenium-server.js 出错:
error while loading shared libraries: libgconf-2.so

原因：Linux based EC2 instances lack gtk+, which is a must to launch any GUI enabled applications. - See more at: http://itsallabtamil.blogspot.com/2013/02/setting-up-chrome-firefox-ec2-selenium-java.html#sthash.Ga4egJnu.dpuf

办法：yum install libgconf-2.so.4 -y
/////////////////////////////////
通过server网址访问出错：HTTP ERROR: 403 Forbidden for Proxy RequestURI=/session

var driver = new webdriver.Builder()
//.forBrowser('firefox')
.usingServer("http://localhost:4444")
.withCapabilities(webdriver.Capabilities.chrome())
.build();

办法：用这个路径 http://localhost:4444/wd/hub

http://localhost:4444/wd/hub/static/resource/hub.html
//////////////////////////////////////////////
最后node test.js
测试脚本：

var webdriver = require('selenium-webdriver'),
By = require('selenium-webdriver').By,
until = require('selenium-webdriver').until;

var driver = new webdriver.Builder()
.forBrowser('chrome')
.build();

driver.get('https://www.baidu.com/');
driver.findElement(By.id('kw')).sendKeys('zhaiduo');
driver.findElement(By.id('su')).click();
driver.wait(until.titleIs('zhaiduo_百度搜索'), 3000);
driver.quit();

运行后，chrome浏览器自动打开，并访问相应网址，自动执行脚本中的各种事件。

///////////////

语法参考：

driver.navigate("file:///race_condition.html")
el = driver.find_element_by_tag_name("p")
assert el.text == "Hello from JavaScript!"

def document_initialised(driver):
return driver.execute_script("return initialised")

driver.navigate("file:///race_condition.html")
WebDriverWait(driver).until(document_initialised)
el = driver.find_element_by_tag_name("p")
assert el.text == "Hello from JavaScript!"

from selenium.webdriver.support.ui import WebDriverWait

driver.navigate("file:///race_condition.html")
el = WebDriverWait(driver).until(lambda d: return d.find_element_by_tag_name("p"))
assert el.text == "Hello from JavaScript!"

https://seleniumhq.github.io/docs/wd.html#driver_requirements

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更多参考：
https://github.com/chibimagic/WebDriver-PHP

http://code.google.com/p/php-webdriver-bindings/