If you want to make me really happy, I would like to remove this and use the new helpers we've created for this. This would allow us to remove the duplicate HTML.

See here for implementation details: 

Instead of requireApp: https://github.com/crdlc/gaia/blob/e1d90008cc427a3bd8e8eabc9b8a3d4e3f1c1ee8/apps/calendar/test/unit/views/advanced_settings_test.js#L4

Instead of HTML assignment: https://github.com/crdlc/gaia/blob/e1d90008cc427a3bd8e8eabc9b8a3d4e3f1c1ee8/apps/calendar/test/unit/views/advanced_settings_test.js#L57