Create an assignment that accepts online text submissions (and nothing else) Login as a student and attempt to submit empty text ('') Check that you receive a notification that "Nothing was submitted" and the submission is not accepted. Enter some text and save the submission The submission should be saved Create an assignment that accepts file submissions (and nothing else) Login as a student and attempt to submit without uploading any files Check that you receive a notification that "Nothing was submitted" and the submission is not accepted. Upload a file and save the submission The submission should be saved Create an assignment that accepts online text submissions and file submissions Login as a student and attempt to submit empty text ('') and no files Check that you receive a notification that "Nothing was submitted" and the submission is not accepted. Upload a file and save the submission The submission should be saved