Added test to cover evaluation of class.
Added test to cover evaluation of class.

This test fails with 0.3.11 release.

wfxiang08/Nuitka,kayhayen/Nuitka,wfxiang08/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka,wfxiang08/Nuitka,tempbottle/Nuitka,wfxiang08/Nuitka,tempbottle/Nuitka,tempbottle/Nuitka,kayhayen/Nuitka,tempbottle/Nuitka