NOTE: You need admin permissions and public moodle instance to test this issue.

Create LTI tool registration

1. As admin got to Site administration > Plugins > Activity modules > LTI > Manage tools
2. Enter http://lti.tools/test/tp.php in the Tool URL input and click "Add"
3. Select all options under Capabilities and Service in the new page that loads
4. Press "Register tool"
5. When asked if you'd like to activate this tool, click "Yes"

Add a LTI activity

1. As a teacher in a course, add an activity and select your recently configured LTI tool from the list (likely called "Test tool provider").
2. Type a Activity name
3. Save and Display
4. Ensure that you see a page that says: "IMS LTI tool provider emulator"
5. Click on "Memberships" icon and then click on "Read" button
6. Check the JSON in the response to ensure it correctly reports each user enrolled in the course

Add a LTI activity (alternate way)

1. As a teacher in a course, add an activity "External tool".
2. Type a Activity name and select "Test tool provider" for "External tool type"
3. Save and Display
4. Ensure that you see a page that says: "IMS LTI tool provider emulator"
5. Click on "Memberships" icon and then click on "Read" button
6. Check the JSON in the response to ensure it correctly reports each user enrolled in the course