Environment setup Setup the environment using the following link:  https://github.com/mattporritt/moodle-docker (Feel free to reach out for any issues) Make sure you have access to the following information: Element web URL (e.g. https://element:8081) Home server URL (e.g. https://synapse:8008 ) Access token, generated using the same account used to login to element client Refresh token (optional) Test scenario Login to Moodle as admin Navigate to  Site admin > Development > Experimental settings  and enable 'Enable communication subsystem' Navigate to  Site admin > Plugins > Communication > Manage communication providers and ensure 'Matrix' is enabled. Navigate to  Site admin > Plugins > Communication > Matrix Add the access token (available from the environment setup) Add the refresh token if available, otherwise paste the access token Add the element server url (available from the environment setup) Save your changes Navigate to  Site admin > HTTP Security Add the Synapse port to 'cURL allowed ports list' (e.g. 8008) Navigate to the create a new course form Add all the required information in form Go to the communication section Set communication provider to 'Matrix' Enter a name for the provider room Save changes Run the ad-hoc task or the cron itself Navigate to your course page CONFIRM  there is a new icon above the '?' icon in the bottom right of your window. Click the new icon CONFIRM that it launches element in a new browser window Log in with your admin account details if prompted. CONFIRM the newly created room is displayed Enrol a student and a teacher into the course Log in as that student and navigate to the course CONFIRM  there is a new icon above the '?' icon in the bottom right of your window. Click the new icon CONFIRM that it launches element in a new browser window (you will NOT have access as a student. Room membership is out of scope in this issue and will be handled in MDL-76703 ) Login to Moodle as admin Navigate to  Site admin > Development > Experimental settings and disable 'Enable communication subsystem' Navigate back to one of your courses that previously had a button that took you to the chat room. CONFIRM you can no longer see this icon/button above the '?' icon. Unit test Setup the mock server using following repository: https://github.com/stevandoMoodle/matrixsynapse_mock Standup up a Moodle instance using this tracker Go to the config.php Add the following line after $CFG->wwwroot: define('TEST_COMMUNICATION_MATRIX_MOCK_SERVER', "http://localhost:8001/hash" . sha1($CFG->wwwroot)); Initialize phpunit Run the following testsuite: vendor/bin/phpunit --testsuite communication_matrix_testsuite CONFIRM the tests ran successfully Run the following testsuite: vendor/bin/phpunit --testsuite core_communication_testsuite CONFIRM the tests ran successfully