Set the first section in a new course to visible and the second section to hidden. Add 2 activities to each (using the activity chooser - not drag and drop). Hide 1 activity in the first section. Hide the first section Show the first section Verify that the activities go back to the visible state they were in before the section was hidden. Unhide the second section, verify the activities in that section become unhidden Hide the third section, Move a visible activity into the third section Unhide the third section Verify the activity is made visible. Hide the fourth section Drag a hidden activity to the fourth section Drag a visible activity to the fourth section Verify both activities are hidden Unhide the section Verify only one activity in the fourth section is visible Hide the fifth section Drag a hidden activity to the fifth section Drag a visible activity to the fifth section Drag both activities to the sixth section Verify only one of the activities becomes visible when dragged to a visible section. Repeat all tests with ajaxenabled set to 0 (non drag and drop version).