MAINT: Change test to read random sized chunks
MAINT: Change test to read random sized chunks

Speeds the test up vs. reading single bytes at a time, and is now
correctly handled when reading the magic string and array header.

WarrenWeckesser/numpy,skwbc/numpy,pizzathief/numpy,sonnyhu/numpy,GrimDerp/numpy,WillieMaddox/numpy,ChristopherHogan/numpy,SiccarPoint/numpy,njase/numpy,empeeu/numpy,Anwesh43/numpy,nbeaver/numpy,MaPePeR/numpy,cjermain/numpy,GrimDerp/numpy,mortada/numpy,pbrod/numpy,AustereCuriosity/numpy,SunghanKim/numpy,cjermain/numpy,ChanderG/numpy,MichaelAquilina/numpy,leifdenby/numpy,ChristopherHogan/numpy,stuarteberg/numpy,anntzer/numpy,empeeu/numpy,hainm/numpy,sinhrks/numpy,jschueller/numpy,jakirkham/numpy,felipebetancur/numpy,jorisvandenbossche/numpy,GrimDerp/numpy,rhythmsosad/numpy,Eric89GXL/numpy,githubmlai/numpy,groutr/numpy,trankmichael/numpy,immerrr/numpy,githubmlai/numpy,ahaldane/numpy,dato-code/numpy,Eric89GXL/numpy,jonathanunderwood/numpy,gmcastil/numpy,kiwifb/numpy,Linkid/numpy,MSeifert04/numpy,nbeaver/numpy,ahaldane/numpy,mathdd/numpy,BMJHayward/numpy,dwillmer/numpy,WarrenWeckesser/numpy,Linkid/numpy,cjermain/numpy,ekalosak/numpy,dch312/numpy,pizzathief/numpy,mhvk/numpy,pbrod/numpy,mattip/numpy,ESSS/numpy,rudimeier/numpy,maniteja123/numpy,charris/numpy,felipebetancur/numpy,sinhrks/numpy,skymanaditya1/numpy,nguyentu1602/numpy,kiwifb/numpy,rhythmsosad/numpy,githubmlai/numpy,behzadnouri/numpy,rmcgibbo/numpy,rmcgibbo/numpy,behzadnouri/numpy,ContinuumIO/numpy,ViralLeadership/numpy,NextThought/pypy-numpy,has2k1/numpy,bertrand-l/numpy,naritta/numpy,MSeifert04/numpy,tdsmith/numpy,gfyoung/numpy,jakirkham/numpy,has2k1/numpy,gfyoung/numpy,githubmlai/numpy,rherault-insa/numpy,Dapid/numpy,drasmuss/numpy,felipebetancur/numpy,joferkington/numpy,chatcannon/numpy,ContinuumIO/numpy,GaZ3ll3/numpy,joferkington/numpy,stuarteberg/numpy,cowlicks/numpy,sigma-random/numpy,madphysicist/numpy,skwbc/numpy,hainm/numpy,mathdd/numpy,mindw/numpy,ChristopherHogan/numpy,drasmuss/numpy,gmcastil/numpy,rmcgibbo/numpy,hainm/numpy,empeeu/numpy,ajdawson/numpy,SunghanKim/numpy,embray/numpy,kirillzhuravlev/numpy,BMJHayward/numpy,pdebuyl/numpy,Srisai85/numpy,tacaswell/numpy,SiccarPoint/numpy,MaPePeR/numpy,naritta/numpy,groutr/numpy,jakirkham/numpy,andsor/numpy,ajdawson/numpy,ddasilva/numpy,CMartelLML/numpy,gmcastil/numpy,naritta/numpy,tacaswell/numpy,Eric89GXL/numpy,bertrand-l/numpy,grlee77/numpy,mindw/numpy,Srisai85/numpy,b-carter/numpy,numpy/numpy,endolith/numpy,rgommers/numpy,BabeNovelty/numpy,jankoslavic/numpy,ajdawson/numpy,larsmans/numpy,mhvk/numpy,mhvk/numpy,rudimeier/numpy,larsmans/numpy,MaPePeR/numpy,charris/numpy,ChanderG/numpy,rajathkumarmp/numpy,tacaswell/numpy,abalkin/numpy,leifdenby/numpy,anntzer/numpy,sigma-random/numpy,CMartelLML/numpy,simongibbons/numpy,solarjoe/numpy,madphysicist/numpy,chatcannon/numpy,njase/numpy,chiffa/numpy,mattip/numpy,simongibbons/numpy,has2k1/numpy,rhythmsosad/numpy,abalkin/numpy,seberg/numpy,GaZ3ll3/numpy,argriffing/numpy,shoyer/numpy,jankoslavic/numpy,dch312/numpy,andsor/numpy,sonnyhu/numpy,rherault-insa/numpy,dato-code/numpy,utke1/numpy,dimasad/numpy,mathdd/numpy,Anwesh43/numpy,tdsmith/numpy,solarjoe/numpy,shoyer/numpy,mindw/numpy,skymanaditya1/numpy,numpy/numpy,cowlicks/numpy,jonathanunderwood/numpy,utke1/numpy,brandon-rhodes/numpy,ekalosak/numpy,stuarteberg/numpy,CMartelLML/numpy,trankmichael/numpy,musically-ut/numpy,maniteja123/numpy,kirillzhuravlev/numpy,charris/numpy,yiakwy/numpy,immerrr/numpy,Srisai85/numpy,dimasad/numpy,cowlicks/numpy,sigma-random/numpy,grlee77/numpy,jakirkham/numpy,jonathanunderwood/numpy,ahaldane/numpy,rgommers/numpy,KaelChen/numpy,Yusa95/numpy,grlee77/numpy,yiakwy/numpy,pdebuyl/numpy,dato-code/numpy,BMJHayward/numpy,BabeNovelty/numpy,musically-ut/numpy,mwiebe/numpy,embray/numpy,empeeu/numpy,Yusa95/numpy,sinhrks/numpy,Anwesh43/numpy,mattip/numpy,sinhrks/numpy,endolith/numpy,dwillmer/numpy,behzadnouri/numpy,dato-code/numpy,Srisai85/numpy,musically-ut/numpy,mingwpy/numpy,cowlicks/numpy,yiakwy/numpy,cjermain/numpy,mwiebe/numpy,ESSS/numpy,embray/numpy,endolith/numpy,hainm/numpy,rudimeier/numpy,tynn/numpy,MSeifert04/numpy,joferkington/numpy,pizzathief/numpy,sigma-random/numpy,argriffing/numpy,SiccarPoint/numpy,solarjoe/numpy,jorisvandenbossche/numpy,trankmichael/numpy,dwillmer/numpy,mwiebe/numpy,WarrenWeckesser/numpy,ddasilva/numpy,ddasilva/numpy,mhvk/numpy,jankoslavic/numpy,nbeaver/numpy,NextThought/pypy-numpy,kirillzhuravlev/numpy,simongibbons/numpy,ahaldane/numpy,argriffing/numpy,jorisvandenbossche/numpy,embray/numpy,rajathkumarmp/numpy,brandon-rhodes/numpy,MSeifert04/numpy,pbrod/numpy,madphysicist/numpy,musically-ut/numpy,dwillmer/numpy,mathdd/numpy,CMartelLML/numpy,MaPePeR/numpy,ChanderG/numpy,skwbc/numpy,ChristopherHogan/numpy,MSeifert04/numpy,ssanderson/numpy,grlee77/numpy,ChanderG/numpy,seberg/numpy,Dapid/numpy,ahaldane/numpy,GrimDerp/numpy,AustereCuriosity/numpy,MichaelAquilina/numpy,simongibbons/numpy,MichaelAquilina/numpy,Linkid/numpy,ekalosak/numpy,bmorris3/numpy,njase/numpy,drasmuss/numpy,SunghanKim/numpy,pizzathief/numpy,MichaelAquilina/numpy,pdebuyl/numpy,skymanaditya1/numpy,b-carter/numpy,nguyentu1602/numpy,bertrand-l/numpy,jschueller/numpy,simongibbons/numpy,seberg/numpy,shoyer/numpy,mindw/numpy,AustereCuriosity/numpy,grlee77/numpy,stuarteberg/numpy,mortada/numpy,brandon-rhodes/numpy,madphysicist/numpy,mingwpy/numpy,nguyentu1602/numpy,ekalosak/numpy,dimasad/numpy,pizzathief/numpy,moreati/numpy,jschueller/numpy,larsmans/numpy,ContinuumIO/numpy,Eric89GXL/numpy,joferkington/numpy,rhythmsosad/numpy,rmcgibbo/numpy,WarrenWeckesser/numpy,gfyoung/numpy,endolith/numpy,groutr/numpy,bringingheavendown/numpy,rgommers/numpy,pyparallel/numpy,jorisvandenbossche/numpy,utke1/numpy,SunghanKim/numpy,mortada/numpy,skymanaditya1/numpy,embray/numpy,kirillzhuravlev/numpy,maniteja123/numpy,rajathkumarmp/numpy,andsor/numpy,shoyer/numpy,bmorris3/numpy,moreati/numpy,Anwesh43/numpy,sonnyhu/numpy,WillieMaddox/numpy,larsmans/numpy,ViralLeadership/numpy,moreati/numpy,numpy/numpy,pbrod/numpy,ViralLeadership/numpy,yiakwy/numpy,mortada/numpy,trankmichael/numpy,nguyentu1602/numpy,tynn/numpy,ESSS/numpy,numpy/numpy,BabeNovelty/numpy,pbrod/numpy,chiffa/numpy,chatcannon/numpy,immerrr/numpy,rherault-insa/numpy,KaelChen/numpy,madphysicist/numpy,tdsmith/numpy,mhvk/numpy,dch312/numpy,shoyer/numpy,tynn/numpy,ssanderson/numpy,anntzer/numpy,b-carter/numpy,NextThought/pypy-numpy,seberg/numpy,tdsmith/numpy,WarrenWeckesser/numpy,leifdenby/numpy,immerrr/numpy,rudimeier/numpy,jschueller/numpy,jorisvandenbossche/numpy,Yusa95/numpy,Yusa95/numpy,anntzer/numpy,bmorris3/numpy,BabeNovelty/numpy,andsor/numpy,bringingheavendown/numpy,WillieMaddox/numpy,rgommers/numpy,brandon-rhodes/numpy,mingwpy/numpy,SiccarPoint/numpy,abalkin/numpy,pyparallel/numpy,naritta/numpy,felipebetancur/numpy,pdebuyl/numpy,dch312/numpy,NextThought/pypy-numpy,bringingheavendown/numpy,sonnyhu/numpy,KaelChen/numpy,GaZ3ll3/numpy,Linkid/numpy,kiwifb/numpy,pyparallel/numpy,GaZ3ll3/numpy,bmorris3/numpy,BMJHayward/numpy,rajathkumarmp/numpy,dimasad/numpy,Dapid/numpy,jakirkham/numpy,has2k1/numpy,KaelChen/numpy,chiffa/numpy,mattip/numpy,mingwpy/numpy,jankoslavic/numpy,ssanderson/numpy,charris/numpy,ajdawson/numpy