Add tests with function units (magnitude)
Add tests with function units (magnitude)

astropy/astropy,pllim/astropy,astropy/astropy,astropy/astropy,astropy/astropy,pllim/astropy,larrybradley/astropy,lpsinger/astropy,StuartLittlefair/astropy,larrybradley/astropy,lpsinger/astropy,saimn/astropy,saimn/astropy,mhvk/astropy,StuartLittlefair/astropy,astropy/astropy,pllim/astropy,StuartLittlefair/astropy,lpsinger/astropy,mhvk/astropy,larrybradley/astropy,larrybradley/astropy,StuartLittlefair/astropy,mhvk/astropy,mhvk/astropy,pllim/astropy,mhvk/astropy,saimn/astropy,lpsinger/astropy,pllim/astropy,lpsinger/astropy,StuartLittlefair/astropy,saimn/astropy,saimn/astropy,larrybradley/astropy