This plugin tests the Moodle HTML purifier in order to check whether it filters out MathML or not.
To install it using git, type this command in the root of your Moodle install:
git clone https://github.com/wiris/moodle-local_mathmlunittesting.git local/mathmlunittesting
Then add /local/mathmlunittesting to your git ignore.
Alternatively, download the zip from https://github.com/wiris/moodle-local_mathmlunittesting/archive/master.zip it into the local folder, and then rename the new folder to "mathmlunittesting".
MathML unit testing local plugin is Licensed under the GNU General Public, License Version 3.