fix tests so that document related is in a separate fixture base
fix tests so that document related is in a separate fixture base

wfxiang08/sqlalchemy,elelianghh/sqlalchemy,robin900/sqlalchemy,graingert/sqlalchemy,pdufour/sqlalchemy,sandan/sqlalchemy,Cito/sqlalchemy,davidjb/sqlalchemy,Cito/sqlalchemy,zzzeek/sqlalchemy,alex/sqlalchemy,hsum/sqlalchemy,wujuguang/sqlalchemy,bootandy/sqlalchemy,dstufft/sqlalchemy,alex/sqlalchemy,bdupharm/sqlalchemy,Akrog/sqlalchemy,WinterNis/sqlalchemy,robin900/sqlalchemy,Akrog/sqlalchemy,davidjb/sqlalchemy,WinterNis/sqlalchemy,wfxiang08/sqlalchemy,hsum/sqlalchemy,sqlalchemy/sqlalchemy,davidfraser/sqlalchemy,ThiefMaster/sqlalchemy,bootandy/sqlalchemy,dstufft/sqlalchemy,Cito/sqlalchemy,monetate/sqlalchemy,itkovian/sqlalchemy,epa/sqlalchemy,halfcrazy/sqlalchemy,epa/sqlalchemy,olemis/sqlalchemy,ThiefMaster/sqlalchemy,inspirehep/sqlalchemy,davidfraser/sqlalchemy,halfcrazy/sqlalchemy,brianv0/sqlalchemy,bdupharm/sqlalchemy,inspirehep/sqlalchemy,itkovian/sqlalchemy,sandan/sqlalchemy,pdufour/sqlalchemy,brianv0/sqlalchemy,276361270/sqlalchemy,elelianghh/sqlalchemy,EvaSDK/sqlalchemy,olemis/sqlalchemy,j5int/sqlalchemy,wujuguang/sqlalchemy,EvaSDK/sqlalchemy,graingert/sqlalchemy,j5int/sqlalchemy,alex/sqlalchemy,monetate/sqlalchemy,276361270/sqlalchemy