TST: added a test for constant padding on 4 sides of a 2d array
TST: added a test for constant padding on 4 sides of a 2d array

This test exposes padding bug described in the issue #7353

stuarteberg/numpy,skwbc/numpy,jorisvandenbossche/numpy,chiffa/numpy,anntzer/numpy,mhvk/numpy,argriffing/numpy,ssanderson/numpy,Eric89GXL/numpy,grlee77/numpy,rgommers/numpy,abalkin/numpy,pizzathief/numpy,jorisvandenbossche/numpy,jorisvandenbossche/numpy,rgommers/numpy,endolith/numpy,ahaldane/numpy,MSeifert04/numpy,WarrenWeckesser/numpy,jorisvandenbossche/numpy,pizzathief/numpy,b-carter/numpy,maniteja123/numpy,seberg/numpy,abalkin/numpy,bertrand-l/numpy,mhvk/numpy,charris/numpy,madphysicist/numpy,madphysicist/numpy,tacaswell/numpy,pbrod/numpy,pbrod/numpy,numpy/numpy,chiffa/numpy,grlee77/numpy,jakirkham/numpy,joferkington/numpy,simongibbons/numpy,simongibbons/numpy,ddasilva/numpy,anntzer/numpy,shoyer/numpy,ahaldane/numpy,dwillmer/numpy,endolith/numpy,MSeifert04/numpy,njase/numpy,kiwifb/numpy,SiccarPoint/numpy,utke1/numpy,SiccarPoint/numpy,drasmuss/numpy,stuarteberg/numpy,ContinuumIO/numpy,stuarteberg/numpy,madphysicist/numpy,madphysicist/numpy,mattip/numpy,seberg/numpy,joferkington/numpy,solarjoe/numpy,bertrand-l/numpy,dwillmer/numpy,chiffa/numpy,utke1/numpy,endolith/numpy,WarrenWeckesser/numpy,grlee77/numpy,pdebuyl/numpy,ahaldane/numpy,numpy/numpy,pdebuyl/numpy,pizzathief/numpy,mhvk/numpy,skwbc/numpy,pizzathief/numpy,SiccarPoint/numpy,bringingheavendown/numpy,gmcastil/numpy,kiwifb/numpy,AustereCuriosity/numpy,bringingheavendown/numpy,solarjoe/numpy,WarrenWeckesser/numpy,WarrenWeckesser/numpy,anntzer/numpy,simongibbons/numpy,Eric89GXL/numpy,abalkin/numpy,rgommers/numpy,jakirkham/numpy,rherault-insa/numpy,ssanderson/numpy,charris/numpy,MSeifert04/numpy,mhvk/numpy,numpy/numpy,behzadnouri/numpy,grlee77/numpy,charris/numpy,shoyer/numpy,tynn/numpy,skwbc/numpy,simongibbons/numpy,b-carter/numpy,shoyer/numpy,endolith/numpy,utke1/numpy,maniteja123/numpy,mattip/numpy,ahaldane/numpy,njase/numpy,ddasilva/numpy,jakirkham/numpy,charris/numpy,b-carter/numpy,anntzer/numpy,shoyer/numpy,gmcastil/numpy,numpy/numpy,pizzathief/numpy,rherault-insa/numpy,ContinuumIO/numpy,solarjoe/numpy,AustereCuriosity/numpy,madphysicist/numpy,rherault-insa/numpy,simongibbons/numpy,chatcannon/numpy,MSeifert04/numpy,mattip/numpy,ContinuumIO/numpy,AustereCuriosity/numpy,gfyoung/numpy,gfyoung/numpy,Eric89GXL/numpy,mattip/numpy,tynn/numpy,rgommers/numpy,tacaswell/numpy,argriffing/numpy,behzadnouri/numpy,pbrod/numpy,seberg/numpy,kiwifb/numpy,pdebuyl/numpy,bertrand-l/numpy,dwillmer/numpy,njase/numpy,SiccarPoint/numpy,chatcannon/numpy,pbrod/numpy,jakirkham/numpy,drasmuss/numpy,tacaswell/numpy,argriffing/numpy,seberg/numpy,grlee77/numpy,joferkington/numpy,ddasilva/numpy,maniteja123/numpy,jorisvandenbossche/numpy,WarrenWeckesser/numpy,Eric89GXL/numpy,MSeifert04/numpy,pdebuyl/numpy,bringingheavendown/numpy,drasmuss/numpy,joferkington/numpy,pbrod/numpy,tynn/numpy,jakirkham/numpy,dwillmer/numpy,ssanderson/numpy,behzadnouri/numpy,ahaldane/numpy,shoyer/numpy,chatcannon/numpy,gmcastil/numpy,gfyoung/numpy,mhvk/numpy,stuarteberg/numpy