Add test for query string encoding.
Add test for query string encoding.

Closes #2768

cakephp-fr/cakephp,tenkoma/cakephp,eboominathan/cakephp,eryw/cakephp,tgr0ss/cakephp,web-player/cakephp,gmponos/cakephp,mvdriel/cakephp,dakota/cakephp,elboletaire/cakephp,jeffblack360/cakephp,dkarvounaris/cakephp,michaelze/cakephp,ADmad/cakephp,erikfig/cakephp,dakota/cakephp,davidyell/cakephp,CVO-Technologies/cakephp,tgr0ss/cakephp,bravo-kernel/cakephp,justinyost/cakephp,jerems02/cakephp,adopico/cakephp,burriko/cakephp,kumamidori/cakephp,et304383/passbolt_api,bravo-kernel/cakephp,davidyell/cakephp,gmponos/cakephp,michaelze/cakephp,dakota/cakephp,web-player/cakephp,garethellis36/cakephp,yinhe007/cakephp,Balachan27/cakephp,dkarvounaris/cakephp,adopico/cakephp,elboletaire/cakephp,pbaire/cakephp,cakephp/cakephp,Phillaf/cakephp,kumamidori/cakephp,bravo-kernel/cakephp,akintoey/cakephp,ndm2/cakephp,et304383/passbolt_api,elboletaire/cakephp,nrother/cakephp,yinhe007/cakephp,CVO-Technologies/cakephp,ionas/cakephp,CakeDC/cakephp,tenkoma/cakephp,garethellis36/cakephp,petteyg/cakephp,ndm2/cakephp,pbaire/cakephp,pbaire/cakephp,et304383/passbolt_api,erikfig/cakephp,HavokInspiration/cakephp,tgr0ss/cakephp,adopico/cakephp,yinhe007/cakephp,jerems02/cakephp,Phillaf/cakephp,petteyg/cakephp,mvdriel/cakephp,akintoey/cakephp,jjj117/cakephp,ndm2/cakephp,garethellis36/cakephp,eryw/cakephp,eboominathan/cakephp,khoimt/cakephp-study,jjj117/cakephp,burriko/cakephp,berrygoudswaard/cakephp,tenkoma/cakephp,eboominathan/cakephp,jeffblack360/cakephp,michaelze/cakephp,CakeDC/cakephp,petteyg/cakephp,thinkingmedia/cakephp,ionas/cakephp,timhoeppner/cakephp,berrygoudswaard/cakephp,erikfig/cakephp,jerems02/cakephp,justinyost/cakephp,burriko/cakephp,thinkingmedia/cakephp,mvdriel/cakephp,ADmad/cakephp,Phillaf/cakephp,web-player/cakephp,Balachan27/cakephp,garethellis36/cakephp,akintoey/cakephp,dakota/cakephp,cakephp/cakephp,cakephp-fr/cakephp,timhoeppner/cakephp,nrother/cakephp,HavokInspiration/cakephp,petteyg/cakephp,nrother/cakephp,HavokInspiration/cakephp,justinyost/cakephp,davidyell/cakephp,ADmad/cakephp,Balachan27/cakephp,khoimt/cakephp-study,cakephp/cakephp,thinkingmedia/cakephp,eryw/cakephp,CVO-Technologies/cakephp,kumamidori/cakephp,mvdriel/cakephp,CakeDC/cakephp,dkarvounaris/cakephp,cakephp-fr/cakephp,et304383/passbolt_api,tisu2tisu/cakephp,CakeDC/cakephp,ADmad/cakephp,cakephp/cakephp,et304383/passbolt_api,tisu2tisu/cakephp,jeffblack360/cakephp,tenkoma/cakephp,ionas/cakephp,berrygoudswaard/cakephp,gmponos/cakephp,tisu2tisu/cakephp,timhoeppner/cakephp,ndm2/cakephp,jjj117/cakephp,khoimt/cakephp-study