Add test for `MacOS.languages`.
Add test for `MacOS.languages`.

bfontaine/brew,vitorgalvao/brew,jmsundar/brew,JCount/brew,mahori/brew,tonyg/homebrew,konqui/brew,zmwangx/brew,ilovezfs/brew,hanxue/linuxbrew,palxex/brew,Linuxbrew/brew,alyssais/brew,MikeMcQuaid/brew,reitermarkus/brew,bfontaine/brew,Homebrew/brew,aw1621107/brew,jmsundar/brew,Homebrew/brew,mgrimes/brew,DomT4/brew,reelsense/brew,gregory-nisbet/brew,sjackman/homebrew,rwhogg/brew,nandub/brew,nandub/brew,gregory-nisbet/brew,MikeMcQuaid/brew,reitermarkus/brew,zmwangx/brew,amar-laksh/brew_sudo,MikeMcQuaid/brew,vitorgalvao/brew,hanxue/linuxbrew,mgrimes/brew,Homebrew/brew,mahori/brew,JCount/brew,mahori/brew,amar-laksh/brew_sudo,nandub/brew,EricFromCanada/brew,reitermarkus/brew,maxim-belkin/brew,reelsense/brew,konqui/brew,tonyg/homebrew,pseudocody/brew,DomT4/brew,Linuxbrew/brew,aw1621107/brew,ilovezfs/brew,gregory-nisbet/brew,tonyg/homebrew,palxex/brew,rwhogg/brew,jmsundar/brew,amar-laksh/brew_sudo,mahori/brew,maxim-belkin/brew,Linuxbrew/brew,bfontaine/brew,EricFromCanada/brew,konqui/brew,claui/brew,DomT4/brew,Linuxbrew/brew,aw1621107/brew,ilovezfs/brew,sjackman/homebrew,claui/brew,zmwangx/brew,JCount/brew,MikeMcQuaid/brew,claui/brew,vitorgalvao/brew,Homebrew/brew,rwhogg/brew,konqui/brew,mgrimes/brew,reelsense/brew,JCount/brew,sjackman/homebrew,vitorgalvao/brew,palxex/brew,reitermarkus/brew,hanxue/linuxbrew,alyssais/brew,muellermartin/dist,sjackman/homebrew,claui/brew,alyssais/brew,pseudocody/brew,muellermartin/dist,pseudocody/brew,muellermartin/dist,nandub/brew,maxim-belkin/brew,EricFromCanada/brew,EricFromCanada/brew,DomT4/brew