RE: Improving JaCoCo's branch coverage of a Groovy assert statement

I forgot to explicitly mention the primary motivation for doing this.

At the moment, there is no way to have full branch coverage for Groovy assert statements.
In a larger project, this is very distractive when trying to find the pieces of actual logic that
should be better covered with tests. I believe a slight change in assert statement code
generation can significantly improve the situation.