This directory contains tests for the MathML in HTML5 implementation note which is itself based on the HTML5 W3C recommendation, on the MathML3 W3C recommendation and on the Open Font Format 3 standard.
Many of the tests verify OpenType features and require specific Web fonts for that purpose. WOFF fonts are generated by scripts in the tools/ folder using the Python API of fontforge. A recent enough version of FontForge is necessary so that it includes fixes for WOFF checkSumAdjustment, USE_TYPO_METRICS flag and for other various bugs.