Fix variable test
Fix variable test

ktnyt/chainer,jnishi/chainer,anaruse/chainer,cupy/cupy,niboshi/chainer,truongdq/chainer,keisuke-umezawa/chainer,tkerola/chainer,chainer/chainer,benob/chainer,pfnet/chainer,cemoody/chainer,kiyukuta/chainer,ronekko/chainer,hvy/chainer,benob/chainer,sinhrks/chainer,sinhrks/chainer,chainer/chainer,keisuke-umezawa/chainer,aonotas/chainer,keisuke-umezawa/chainer,ktnyt/chainer,ktnyt/chainer,hvy/chainer,hvy/chainer,kashif/chainer,wkentaro/chainer,ysekky/chainer,okuta/chainer,truongdq/chainer,cupy/cupy,AlpacaDB/chainer,niboshi/chainer,chainer/chainer,cupy/cupy,delta2323/chainer,rezoo/chainer,okuta/chainer,kikusu/chainer,keisuke-umezawa/chainer,okuta/chainer,chainer/chainer,jnishi/chainer,cupy/cupy,wkentaro/chainer,ktnyt/chainer,wkentaro/chainer,wkentaro/chainer,kikusu/chainer,okuta/chainer,AlpacaDB/chainer,hvy/chainer,niboshi/chainer,niboshi/chainer,jnishi/chainer,jnishi/chainer