Querying window state on closed window does not trigger a NoSuchWindow error

[beluha]

Meta -

OS: Windows 7 Professional

Selenium Version: 2.52.0

Browser: Firefox

Browser Version: 45.0.2

Expected Behavior -

Methods related to closed browser window return null

Actual Behavior -

There are several methods related to browser window:

• getCurrentUrl
• getPageSource
• getTitle
• getWindowHandle
• getWindowHandles

When we call them after calling of "close()" method, they return the same value as before calling of "close()".

Steps to reproduce -

1. Start FireFox - driver = new FirefoxDriver(Binary, profile);
2. Call one of the following methods:
3. getCurrentUrl
4. getPageSource
5. getTitle
6. getWindowHandle
7. getWindowHandles
8. Return value of these methods is not null. For example value of "getCurrentUrl()" is "about:blank".
9. Call "close()" method to close current opened window of browser.
10. Window is closed.
11. Call one of the following methods:
12. getCurrentUrl
13. getPageSource
14. getTitle
15. getWindowHandle
16. getWindowHandles
17. Return value of these methods is not null. For example value of "getCurrentUrl()" is still "about:blank".

Returning of null would allow to verify whether browser window is closed.