fileUsage tests were applying styles to the fixture element, which
apparently does not get cleaned between tests. This was because
fileUsage.$container had different semantics from element.$container
(widget's own container div vs. parent container div). FileUsage
now inherits from Element to make sure behavior is consistent.
Change-Id: I8fab8bcf084d8b7e480655114506d9848e9d9a49
The code was incorrectly adding the link to the first section
no matter what. This wasn't caught by the existing assertions,
so these are being improved as well.
Change-Id: I4dcbf44b504bd4cb875b4058fe5604f2a3c871b7
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/44
Interface code is its own class which does not depend on the main
interface class it can be unit tested (and eventually moved into its
own file to make browsing the code easier). IMO we should aim to
eventually break up the interface into similar classes (with a simple
init/empty/set interface + custom events where it makes sense).
Also, sneak-introducing LESS!
API usage could be more effective (globalusage is a separate API call;
it needn't be), but we will have to rewrite that part soon anyway, so
it should pass for now.
Bug: 60087
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/44
Change-Id: Ibe5c323cdeab4a378316925f0c3efb3dc7ef5997
