TST: sparse/linalg: limit pydata/sparse tests to existing matrix classes
TST: sparse/linalg: limit pydata/sparse tests to existing matrix classes

jamestwebber/scipy,nmayorov/scipy,scipy/scipy,endolith/scipy,aeklant/scipy,andyfaff/scipy,mdhaber/scipy,pizzathief/scipy,zerothi/scipy,grlee77/scipy,nmayorov/scipy,pizzathief/scipy,rgommers/scipy,tylerjereddy/scipy,jamestwebber/scipy,Stefan-Endres/scipy,anntzer/scipy,vigna/scipy,arokem/scipy,ilayn/scipy,aeklant/scipy,grlee77/scipy,e-q/scipy,andyfaff/scipy,ilayn/scipy,tylerjereddy/scipy,mdhaber/scipy,scipy/scipy,WarrenWeckesser/scipy,matthew-brett/scipy,pizzathief/scipy,zerothi/scipy,Eric89GXL/scipy,andyfaff/scipy,rgommers/scipy,aeklant/scipy,vigna/scipy,Stefan-Endres/scipy,vigna/scipy,scipy/scipy,endolith/scipy,Stefan-Endres/scipy,anntzer/scipy,Stefan-Endres/scipy,andyfaff/scipy,matthew-brett/scipy,vigna/scipy,ilayn/scipy,perimosocordiae/scipy,scipy/scipy,zerothi/scipy,jamestwebber/scipy,anntzer/scipy,endolith/scipy,matthew-brett/scipy,zerothi/scipy,grlee77/scipy,person142/scipy,person142/scipy,ilayn/scipy,arokem/scipy,zerothi/scipy,person142/scipy,endolith/scipy,rgommers/scipy,perimosocordiae/scipy,e-q/scipy,arokem/scipy,WarrenWeckesser/scipy,tylerjereddy/scipy,aeklant/scipy,aeklant/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,matthew-brett/scipy,perimosocordiae/scipy,andyfaff/scipy,ilayn/scipy,mdhaber/scipy,scipy/scipy,andyfaff/scipy,nmayorov/scipy,mdhaber/scipy,arokem/scipy,matthew-brett/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,e-q/scipy,Eric89GXL/scipy,rgommers/scipy,Eric89GXL/scipy,nmayorov/scipy,person142/scipy,e-q/scipy,zerothi/scipy,anntzer/scipy,mdhaber/scipy,pizzathief/scipy,rgommers/scipy,WarrenWeckesser/scipy,anntzer/scipy,Stefan-Endres/scipy,pizzathief/scipy,anntzer/scipy,perimosocordiae/scipy,Eric89GXL/scipy,Eric89GXL/scipy,Stefan-Endres/scipy,person142/scipy,tylerjereddy/scipy,jamestwebber/scipy,WarrenWeckesser/scipy,endolith/scipy,grlee77/scipy,jamestwebber/scipy,scipy/scipy,mdhaber/scipy,e-q/scipy,endolith/scipy,arokem/scipy,vigna/scipy,ilayn/scipy,nmayorov/scipy,Eric89GXL/scipy,grlee77/scipy,tylerjereddy/scipy