Cover by newly created PHPUnit. Manual testing is below

1. Login as admin.
2. Create or use existing OpenAI Provider instance.
3. Click on the Settings link for the created instance.
4. Click on the Settings link for action Generate text.
5. Verify that you will see two sections: General and Settings.
6. Verify that the AI model is a combo box.
7. Verify that AI model values are: Custom, GPT-4o and O1.
8. Select GPT4-o.
9. Verify that you will see the below fields in the Model section:
   • top_p
   • max_tokens
   • frequency_penalty
   • presence_penalty
10. Select Custom.
11. Verify that you will see the Custom model name field.
12. Verify that you will see the Extra parameters text area.
13. Input below to the Extra parameters field.

    {

    "temperature": 0.5,

    "max_tokens": abc

    }

14. Verify that you will see an error: Invalid JSON string
15. Input below to the Extra parameters field.

    {

    "temperature": 0.5,

    "max_tokens": 100

    }

16. Verify that you can save the form.
17. Click on the Settings link for action Generate image.
18. Verify that the AI model is a combo box.
19. Verify that AI model values are: Custom and DALL-e-3.
20. Select Custom.
21. Verify that you will see the Custom model name field.
22. Verify that you will see the Extra parameters text area.
23. Empty the Custom model name.
24. Press Save changes.
25. Verify that you see an error: Required in the Custom model name.
26. Set the Custom model name to: my-custom-gpt.
27. Press Save changes.
28. Verify that you can save the form.

Code verified against automated checks.

Checked MDL-82980 using repository: https://github.com/HuongNV13/moodle.git

• main (0 errors / 0 warnings) [branch: MDL-82980-main | CI Job]

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Built on: Tue Jan 28 06:15:02 AM UTC 2025

Launching automatic jobs for branch MDL-82980-main

• https://ci.moodle.org/view/Testing/job/DEV.02%20-%20Developer-requested%20PHPUnit/18302/ PHPUnit (sqlsrv / complete)
• https://ci.moodle.org/view/Testing/job/DEV.01%20-%20Developer-requested%20Behat/62582/ Behat (NonJS - boost and classic / complete)
• https://ci.moodle.org/view/Testing/job/DEV.01%20-%20Developer-requested%20Behat/62583/ Behat (Firefox - boost / complete)
• https://ci.moodle.org/view/Testing/job/DEV.01%20-%20Developer-requested%20Behat/62584/ Behat (Firefox - classic / complete)
• https://ci.moodle.org/view/Testing/job/DEV.01%20-%20Developer-requested%20Behat/62585/ App tests (stable app version) / complete)

Built on: Wed Feb 19 02:18:50 PM UTC 2025