[BrowserTheory] and associated attributes for use with xUnit.net and Selenium.

Allows you to write tests like the following:

[BrowserTheory]
[URL("http://www.google.co.uk")]
[URL("http://www.google.com")]
[Browser(Browsers.InternetExplorer6)]
[Browser(Browsers.InternetExplorer7, "http://www.google.com")]
[Browser(Browsers.InternetExplorer8)]
[Browser(Browsers.Firefox2)]
[Browser(Browsers.Firefox3)]
[Browser(Browsers.Firefox3_5)]
[Browser(Browsers.GoogleChrome)]
[Browser(Browsers.Opera)]
public void Google_For_SimpleTalk(SeleniumProvider seleniumProvider)
{
    Browser = seleniumProvider.GetBrowser();
    //Test code
}

The above will execute the test case 15 times. 

Twice each (once for each [URL]) for every [Browser] that does not include a specific URL, and once each for any [Browser] that does include a specific URL.