Add regression test
Add regression test

StuartLittlefair/astropy,stargaser/astropy,tbabej/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,mhvk/astropy,larrybradley/astropy,joergdietrich/astropy,funbaker/astropy,saimn/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,stargaser/astropy,lpsinger/astropy,larrybradley/astropy,DougBurke/astropy,StuartLittlefair/astropy,kelle/astropy,tbabej/astropy,stargaser/astropy,AustereCuriosity/astropy,dhomeier/astropy,mhvk/astropy,StuartLittlefair/astropy,pllim/astropy,kelle/astropy,tbabej/astropy,astropy/astropy,lpsinger/astropy,mhvk/astropy,joergdietrich/astropy,saimn/astropy,pllim/astropy,astropy/astropy,dhomeier/astropy,astropy/astropy,saimn/astropy,kelle/astropy,lpsinger/astropy,AustereCuriosity/astropy,pllim/astropy,bsipocz/astropy,bsipocz/astropy,larrybradley/astropy,mhvk/astropy,pllim/astropy,AustereCuriosity/astropy,joergdietrich/astropy,astropy/astropy,dhomeier/astropy,lpsinger/astropy,funbaker/astropy,larrybradley/astropy,AustereCuriosity/astropy,MSeifert04/astropy,bsipocz/astropy,AustereCuriosity/astropy,saimn/astropy,dhomeier/astropy,aleksandr-bakanov/astropy,stargaser/astropy,astropy/astropy,StuartLittlefair/astropy,DougBurke/astropy,DougBurke/astropy,tbabej/astropy,DougBurke/astropy,bsipocz/astropy,aleksandr-bakanov/astropy,joergdietrich/astropy,kelle/astropy,mhvk/astropy,tbabej/astropy,MSeifert04/astropy,MSeifert04/astropy,saimn/astropy,pllim/astropy,funbaker/astropy,larrybradley/astropy,joergdietrich/astropy,dhomeier/astropy,kelle/astropy,StuartLittlefair/astropy,funbaker/astropy