We need to create a Behat test that can test the visibility of the status banners that indicate if a communication room is pending or ready. It will need to communicate with the Matrix Mock server.

The banner is visible to teachers and admins of a course at course/view.php.

The pending banner is visible when the following criteria is met:

1. There is a communication record
2. The user has not yet seen the 'success' banner
3. The room link is not available yet

The success banner is visible when the following criteria is met:

1. There is a communication record
2. The user has not yet seen the 'success' banner
3. The room link is available

There is already a Matrix Mock server available at MDL-76737