Fix calculation tests to work on sqlite
Fix calculation tests to work on sqlite

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