Fix failng windows tests.
Fix failng windows tests.

path_to_url uses os.path.normcase that breaks this test on windows.

Mocked out to use posix paths.

cjerdonek/pip,blarghmatey/pip,patricklaw/pip,willingc/pip,Carreau/pip,sigmavirus24/pip,rouge8/pip,esc/pip,mujiansu/pip,natefoo/pip,fiber-space/pip,willingc/pip,wkeyword/pip,luzfcb/pip,haridsv/pip,ncoghlan/pip,natefoo/pip,haridsv/pip,willingc/pip,ChristopherHogan/pip,zorosteven/pip,RonnyPfannschmidt/pip,Ivoz/pip,benesch/pip,zenlambda/pip,Gabriel439/pip,fiber-space/pip,squidsoup/pip,mujiansu/pip,rouge8/pip,harrisonfeng/pip,yati-sagade/pip,ianw/pip,ChristopherHogan/pip,nthall/pip,esc/pip,James-Firth/pip,KarelJakubec/pip,minrk/pip,jythontools/pip,habnabit/pip,KarelJakubec/pip,habnabit/pip,jythontools/pip,squidsoup/pip,qwcode/pip,zvezdan/pip,caosmo/pip,tdsmith/pip,harrisonfeng/pip,davidovich/pip,zvezdan/pip,pradyunsg/pip,alex/pip,xavfernandez/pip,supriyantomaftuh/pip,davidovich/pip,jamezpolley/pip,zenlambda/pip,qbdsoft/pip,jasonkying/pip,h4ck3rm1k3/pip,esc/pip,sbidoul/pip,zenlambda/pip,Gabriel439/pip,graingert/pip,pradyunsg/pip,supriyantomaftuh/pip,alquerci/pip,benesch/pip,haridsv/pip,alex/pip,ncoghlan/pip,zorosteven/pip,squidsoup/pip,atdaemon/pip,natefoo/pip,techtonik/pip,minrk/pip,techtonik/pip,jamezpolley/pip,jmagnusson/pip,atdaemon/pip,caosmo/pip,zvezdan/pip,jmagnusson/pip,alquerci/pip,luzfcb/pip,xavfernandez/pip,pypa/pip,tdsmith/pip,chaoallsome/pip,ChristopherHogan/pip,Carreau/pip,nthall/pip,chaoallsome/pip,qbdsoft/pip,prasaianooz/pip,alex/pip,sbidoul/pip,rbtcollins/pip,pypa/pip,erikrose/pip,pjdelport/pip,wkeyword/pip,sigmavirus24/pip,caosmo/pip,nthall/pip,dstufft/pip,benesch/pip,prasaianooz/pip,davidovich/pip,mattrobenolt/pip,rbtcollins/pip,cjerdonek/pip,msabramo/pip,supriyantomaftuh/pip,patricklaw/pip,blarghmatey/pip,h4ck3rm1k3/pip,jamezpolley/pip,Gabriel439/pip,zorosteven/pip,blarghmatey/pip,yati-sagade/pip,mindw/pip,dstufft/pip,h4ck3rm1k3/pip,fiber-space/pip,xavfernandez/pip,erikrose/pip,wkeyword/pip,mindw/pip,rouge8/pip,James-Firth/pip,RonnyPfannschmidt/pip,pjdelport/pip,prasaianooz/pip,luzfcb/pip,erikrose/pip,rbtcollins/pip,yati-sagade/pip,pfmoore/pip,radiosilence/pip,jythontools/pip,harrisonfeng/pip,pfmoore/pip,qwcode/pip,habnabit/pip,James-Firth/pip,atdaemon/pip,mindw/pip,pjdelport/pip,RonnyPfannschmidt/pip,Ivoz/pip,mattrobenolt/pip,jasonkying/pip,techtonik/pip,qbdsoft/pip,graingert/pip,ncoghlan/pip,ianw/pip,dstufft/pip,msabramo/pip,jasonkying/pip,tdsmith/pip,graingert/pip,chaoallsome/pip,KarelJakubec/pip,mujiansu/pip,jmagnusson/pip,sigmavirus24/pip