Fix incorrect test cases.
Fix incorrect test cases.

Skip test for the clear() method, as no idea to test from CLI.
At this time, testIncrement and testDecrement would fail due to a bug in
commit 1200f8606b09aaa0fd0bb9341f9ef42bdbf05d63.

tgr0ss/cakephp,elboletaire/cakephp,garethellis36/cakephp,cakephp/cakephp,mvdriel/cakephp,justinyost/cakephp,berrygoudswaard/cakephp,berrygoudswaard/cakephp,CVO-Technologies/cakephp,ADmad/cakephp,CVO-Technologies/cakephp,cakephp/cakephp,dakota/cakephp,davidyell/cakephp,nrother/cakephp,nrother/cakephp,Phillaf/cakephp,thinkingmedia/cakephp,cakephp/cakephp,cakephp-fr/cakephp,HavokInspiration/cakephp,elboletaire/cakephp,jeffblack360/cakephp,mvdriel/cakephp,CVO-Technologies/cakephp,tgr0ss/cakephp,ndm2/cakephp,HavokInspiration/cakephp,davidyell/cakephp,ADmad/cakephp,petteyg/cakephp,tenkoma/cakephp,petteyg/cakephp,tenkoma/cakephp,ionas/cakephp,jeffblack360/cakephp,ADmad/cakephp,petteyg/cakephp,mvdriel/cakephp,ionas/cakephp,ndm2/cakephp,thinkingmedia/cakephp,ndm2/cakephp,mvdriel/cakephp,jeffblack360/cakephp,dakota/cakephp,petteyg/cakephp,nrother/cakephp,garethellis36/cakephp,cakephp-fr/cakephp,Phillaf/cakephp,tenkoma/cakephp,elboletaire/cakephp,ndm2/cakephp,thinkingmedia/cakephp,CakeDC/cakephp,tgr0ss/cakephp,CakeDC/cakephp,Phillaf/cakephp,CakeDC/cakephp,dakota/cakephp,CakeDC/cakephp,garethellis36/cakephp,dakota/cakephp,berrygoudswaard/cakephp,cakephp-fr/cakephp,cakephp/cakephp,ionas/cakephp,ADmad/cakephp,tenkoma/cakephp,HavokInspiration/cakephp,justinyost/cakephp,davidyell/cakephp,garethellis36/cakephp,justinyost/cakephp