Improve test
Improve test

astropy/astropy,dhomeier/astropy,mhvk/astropy,mhvk/astropy,larrybradley/astropy,saimn/astropy,pllim/astropy,larrybradley/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,lpsinger/astropy,pllim/astropy,dhomeier/astropy,mhvk/astropy,mhvk/astropy,aleksandr-bakanov/astropy,saimn/astropy,aleksandr-bakanov/astropy,larrybradley/astropy,lpsinger/astropy,lpsinger/astropy,dhomeier/astropy,astropy/astropy,dhomeier/astropy,StuartLittlefair/astropy,dhomeier/astropy,larrybradley/astropy,pllim/astropy,astropy/astropy,lpsinger/astropy,StuartLittlefair/astropy,larrybradley/astropy,pllim/astropy,lpsinger/astropy,saimn/astropy,aleksandr-bakanov/astropy,astropy/astropy,saimn/astropy,pllim/astropy,saimn/astropy,mhvk/astropy,astropy/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy