View source for Testcase gnome desktop background

== Description ==
This test case tests selection of a desktop background within theGNOME desktop.

=== Setup ===
* Boot into a GNOME 3 session with GNOME Shell

=== How to test ===
* Launch the '''Background '''preferences applet: you can find it by activating the Overview and typing 'background' into the search box
* Select an image from the list
* Check whether the selected image is applied as the desktop background
* Select an image from the list which is a size that does not match the resolution of your display
* Select  different options in the drop-down menu which allows you to select how  non-matching sized images are applied (this option will only be  available for images outside the "Wallpapers" section)
* Check to see if these options are correctly applied
* Return to the applet, and change the background type drop-down menu to ''Colors & Gradients''
* Select a solid color
* Check whether the selected color is applied as the desktop background
* Select a gradient, and select two colors for it
* Check whether the selected gradient is applied as the desktop background

=== Expected Results ===
* When you select an image, color or gradient it should immediately be applied as the desktop background
* Images with a size different from your display's resolution should be adjusted according to the option selected