Release Notes: September 2, 2023
xUnit.net Analyzers 1.3.0 Pre-Release (build 19)
This is co-released with core framework release v2
We have introduced a new analyzer (xUnit1032) that will
flag test classes embedded inside a generic class. As there is no way for xUnit.net to know how to close
the outer generic class to create instances of the inner test class, this is an error.