Examples on how to use thtest

[orlovskyjavaprofi]

I am kind of new to Thymeleaf, but i spent almost one day to figure it out how to run Junit with thtest , but i getting one and the same java.lang.ExceptionInInitializerError , well the docu i think is out of date because there Template Mode 'HTML5' is deprecated. Using Template Mode 'HTML' instead.
I think this would beneficent if somebody put time and effort and produce a simple example how to compare html input with output and upload on to github.
For me is obvious testing for Thymeleaf is tedious task ;)