CLONE - Run PHPUnit tests on MySQL

Prerequisite:

1. Ensure environment checks is all ok (Site administration ► Server ► Environment)
2. Use the utf8_bin collation on your database for unit tests, but we recommend utf8_unicode_ci for actual live Moodle sites. Work is being done to resolve this issue, read more about the Database collation issue for further info.
3. Default InnoDB table format should be Barracuda

Test to perform:

Run the PHP Unit tests on Moodle hosted on Apache with a MySQL database.

NOTE: If any failure occur then please refer https://docs.moodle.org/dev/Common_unit_test_problems