Mostly copied from MDL-38661 Test on: Some browsers, but at least IE8 Preparation: Configure your Front Page to have: Combo list Categories list Set maximum category depth to 2 Ensure you have a few courses and categories, and subcategories Some of your courses should have teachers enrolled and a description Assuming you set everything up correctly, your front page Combo list should show: Top level Category Second level category Any courses in the top level category You category list should show the same Top level Category Second level category Any courses in the top level category Test the combo list: Make sure in combo list some/all courses have ( i ) icon on the right. If they don't add summary to the courses or enroll teachers Click on ( i ) icon, make sure it toggles the course summary Repeat for courses in subcategories that were not initially present on page but loaded in AJAX Test the category list: Make sure you can collapse and expand categories Collapse/expand all: Open any big form with collapsible form sections (i.e. edit course) Make sure you can expand/collapse form sections by clicking on the section name and using "expand all"/"collapse all" links on top Make sure collapse/expand all work for categories list as well Check that expand/collapse works smoothly in Clean, Standard and maybe some other themes