adding more test cases for expand_cache_key
adding more test cases for expand_cache_key

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