Added unit test for astrofrog/wcsaxes#58
Added unit test for astrofrog/wcsaxes#58

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