Prerequisites

1. Create a course
2. Enrol three students A, B, C
3. Add a group G containing the students A and B

Testing with individual submissions

1. Create an assignment with feedback types "Offline grading worksheet" and "Feedback files" enabled and group submission disabled
2. Create a submission for the students B and C
3. Visit the assignment as a teacher
4. Click on "Submissions" in the secondary navigation.
5. Enable the "Download submissions in folders" option, then click on "Download all submissions" from the "Actions" dropdown menu.
6. Unzip the file.
7. Add a file in the folder belonging to student C
8. Re-ZIP the contents and upload the modified ZIP file by choosing "Upload multiple feedback files in a zip" in the "Actions" dropdown
9. Confirm that you see the added file for student C
10. Visit the assignment as a teacher
11. Click on "Submissions" in the secondary navigation.
12. Enable the "Download submissions in folders" option (if not already), and then select student B in the table using the checkbox
13. Click on "Download" in the sticky footer and confirm the action in the popup modal.
14. Unzip the file.
15. Add a file in the folder belonging to student B
16. Re-ZIP the contents and upload the modified ZIP file by choosing "Upload multiple feedback files in a zip" in the "Actions" dropdown
17. Confirm that you see the added file for student B

Testing uploading folders

1. Create an assignment with feedback types "Offline grading worksheet" and "Feedback files" enabled and group submission disabled
2. Create a submission for the student A
3. Visit the assignment as a teacher
4. Click on "Submissions" in the secondary navigation
5. Enable the "Download submissions in folders" option, then click on "Download all submissions" from the "Actions" dropdown menu.
6. Unzip the file.
7. Add a sub-folder "Test" in the folder belonging to student A
8. Add a file to the sub-folder "Test"
9. Re-ZIP the contents and upload the modified ZIP file by choosing "Upload multiple feedback files in a zip" in the "Actions" dropdown
10. Confirm that you see the added file