Remove some indirection in rake dbs test
Remove some indirection in rake dbs test

Just pass in the expected database as argument rather than "caching"
it in a hash and using the hash in the helper methods.

rafaelfranca/omg-rails,MSP-Greg/rails,tgxworld/rails,mohitnatoo/rails,eileencodes/rails,untidy-hair/rails,riseshia/railsguides.kr,arjes/rails,tjschuck/rails,vipulnsward/rails,sergey-alekseev/rails,rossta/rails,MichaelSp/rails,eileencodes/rails,EmmaB/rails-1,BlakeWilliams/rails,rails/rails,stefanmb/rails,odedniv/rails,Sen-Zhang/rails,maicher/rails,yasslab/railsguides.jp,arunagw/rails,pschambacher/rails,arunagw/rails,schuetzm/rails,assain/rails,joonyou/rails,mechanicles/rails,Envek/rails,rails/rails,pvalena/rails,rails/rails,bogdanvlviv/rails,palkan/rails,pschambacher/rails,elfassy/rails,riseshia/railsguides.kr,assain/rails,rafaelfranca/omg-rails,Sen-Zhang/rails,flanger001/rails,kddeisz/rails,jeremy/rails,illacceptanything/illacceptanything,alecspopa/rails,Vasfed/rails,Spin42/rails,hanystudy/rails,betesh/rails,illacceptanything/illacceptanything,untidy-hair/rails,lcreid/rails,kamipo/rails,lcreid/rails,tijwelch/rails,notapatch/rails,flanger001/rails,yalab/rails,notapatch/rails,illacceptanything/illacceptanything,bogdanvlviv/rails,iainbeeston/rails,gcourtemanche/rails,vassilevsky/rails,repinel/rails,richseviora/rails,lucasmazza/rails,stefanmb/rails,alecspopa/rails,baerjam/rails,sealocal/rails,sealocal/rails,yasslab/railsguides.jp,yhirano55/rails,arunagw/rails,bogdanvlviv/rails,rbhitchcock/rails,georgeclaghorn/rails,tijwelch/rails,iainbeeston/rails,illacceptanything/illacceptanything,Vasfed/rails,illacceptanything/illacceptanything,palkan/rails,kamipo/rails,illacceptanything/illacceptanything,deraru/rails,kirs/rails-1,vipulnsward/rails,mechanicles/rails,fabianoleittes/rails,aditya-kapoor/rails,mtsmfm/railstest,assain/rails,matrinox/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,printercu/rails,felipecvo/rails,88rabbit/newRails,printercu/rails,elfassy/rails,hanystudy/rails,ngpestelos/rails,kenta-s/rails,rossta/rails,prathamesh-sonpatki/rails,illacceptanything/illacceptanything,felipecvo/rails,notapatch/rails,kmcphillips/rails,Edouard-chin/rails,ledestin/rails,palkan/rails,deraru/rails,Vasfed/rails,Envek/rails,coreyward/rails,odedniv/rails,vassilevsky/rails,illacceptanything/illacceptanything,ngpestelos/rails,tjschuck/rails,gfvcastro/rails,bolek/rails,Vasfed/rails,palkan/rails,matrinox/rails,kmcphillips/rails,baerjam/rails,mtsmfm/railstest,hanystudy/rails,MichaelSp/rails,richseviora/rails,MSP-Greg/rails,untidy-hair/rails,aditya-kapoor/rails,yawboakye/rails,yawboakye/rails,maicher/rails,kmayer/rails,rbhitchcock/rails,mohitnatoo/rails,gfvcastro/rails,MichaelSp/rails,Erol/rails,brchristian/rails,gavingmiller/rails,gauravtiwari/rails,mechanicles/rails,voray/rails,ngpestelos/rails,vipulnsward/rails,Spin42/rails,koic/rails,schuetzm/rails,Erol/rails,BlakeWilliams/rails,illacceptanything/illacceptanything,odedniv/rails,betesh/rails,yalab/rails,xlymian/rails,bradleypriest/rails,jeremy/rails,matrinox/rails,gavingmiller/rails,sergey-alekseev/rails,BlakeWilliams/rails,kaspth/rails,yawboakye/rails,utilum/rails,EmmaB/rails-1,utilum/rails,yasslab/railsguides.jp,Envek/rails,untidy-hair/rails,Stellenticket/rails,Edouard-chin/rails,eileencodes/rails,kmayer/rails,Envek/rails,shioyama/rails,mijoharas/rails,fabianoleittes/rails,yahonda/rails,mathieujobin/reduced-rails-for-travis,eileencodes/rails,yawboakye/rails,vassilevsky/rails,maicher/rails,voray/rails,88rabbit/newRails,kachick/rails,mijoharas/rails,amoody2108/TechForJustice,kirs/rails-1,vipulnsward/rails,illacceptanything/illacceptanything,coreyward/rails,tijwelch/rails,prathamesh-sonpatki/rails,BlakeWilliams/rails,tjschuck/rails,EmmaB/rails-1,stefanmb/rails,mtsmfm/rails,richseviora/rails,marklocklear/rails,pschambacher/rails,MSP-Greg/rails,Erol/rails,mijoharas/rails,bolek/rails,lcreid/rails,repinel/rails,yhirano55/rails,aditya-kapoor/rails,Stellenticket/rails,baerjam/rails,fabianoleittes/rails,bogdanvlviv/rails,kachick/rails,esparta/rails,schuetzm/rails,esparta/rails,Stellenticket/rails,joonyou/rails,shioyama/rails,tjschuck/rails,prathamesh-sonpatki/rails,marklocklear/rails,ttanimichi/rails,kmayer/rails,marklocklear/rails,illacceptanything/illacceptanything,yalab/rails,kenta-s/rails,mathieujobin/reduced-rails-for-travis,illacceptanything/illacceptanything,Stellenticket/rails,voray/rails,joonyou/rails,travisofthenorth/rails,joonyou/rails,printercu/rails,ttanimichi/rails,gfvcastro/rails,betesh/rails,gavingmiller/rails,mohitnatoo/rails,yahonda/rails,rails/rails,amoody2108/TechForJustice,ledestin/rails,Edouard-chin/rails,brchristian/rails,iainbeeston/rails,rbhitchcock/rails,gcourtemanche/rails,bolek/rails,assain/rails,Sen-Zhang/rails,xlymian/rails,Edouard-chin/rails,travisofthenorth/rails,iainbeeston/rails,samphilipd/rails,prathamesh-sonpatki/rails,kddeisz/rails,felipecvo/rails,mtsmfm/rails,mathieujobin/reduced-rails-for-travis,illacceptanything/illacceptanything,printercu/rails,fabianoleittes/rails,gfvcastro/rails,betesh/rails,kirs/rails-1,arunagw/rails,ledestin/rails,shioyama/rails,georgeclaghorn/rails,brchristian/rails,lucasmazza/rails,georgeclaghorn/rails,ttanimichi/rails,kamipo/rails,koic/rails,riseshia/railsguides.kr,jeremy/rails,georgeclaghorn/rails,riseshia/railsguides.kr,koic/rails,travisofthenorth/rails,lucasmazza/rails,tgxworld/rails,gcourtemanche/rails,kachick/rails,bradleypriest/rails,deraru/rails,arjes/rails,starknx/rails,rafaelfranca/omg-rails,coreyward/rails,aditya-kapoor/rails,kddeisz/rails,mohitnatoo/rails,starknx/rails,esparta/rails,arjes/rails,sealocal/rails,elfassy/rails,baerjam/rails,mtsmfm/rails,kmcphillips/rails,travisofthenorth/rails,rossta/rails,jeremy/rails,88rabbit/newRails,MSP-Greg/rails,Erol/rails,schuetzm/rails,yhirano55/rails,samphilipd/rails,yasslab/railsguides.jp,kenta-s/rails,starknx/rails,utilum/rails,kaspth/rails,esparta/rails,Spin42/rails,yalab/rails,pvalena/rails,yahonda/rails,pvalena/rails,amoody2108/TechForJustice,bradleypriest/rails,gauravtiwari/rails,gauravtiwari/rails,kaspth/rails,lcreid/rails,tgxworld/rails,flanger001/rails,xlymian/rails,kddeisz/rails,repinel/rails,yahonda/rails,sergey-alekseev/rails,yhirano55/rails,deraru/rails,utilum/rails,pvalena/rails,mechanicles/rails,notapatch/rails,shioyama/rails,alecspopa/rails,tgxworld/rails,repinel/rails,mtsmfm/railstest,samphilipd/rails,kmcphillips/rails,flanger001/rails