Covered mostly by unit tests. However, the following tests should be executed manually, to guarantee the edit form can be accessed only by users with the expected permissions: Setup Login as admin. Go to "Site administration > H5P > Manage H5P content types" and upload the attached H5P into the "H5P content type" field. Create a course (Course1). Enrol t1 user as a teacher in Course1.   Testing instructions Login as teacher1. Access to Private files and upload the attached H5P file. Access to Course1. Create an H5P activity. Select the Private file uploaded previously and add it as a "Link to the file". Save and display. Check the "Edit H5P content" button is displayed below the H5P player. Copy the URL in the "Edit H5P content" button. Click the "Edit H5P content" button. Check the H5P editor is displayed. Logout Login as admin Go to the Course1 and access to the H5P activity. Check the "Edit H5P content" button is not displayed. Paste the URL copied in step #6. Check the following error is displayed: "The given URL is incorrect or you cannot edit this file.".