Fixed test case failure
Fixed test case failure

jnishi/chainer,jnishi/chainer,ktnyt/chainer,keisuke-umezawa/chainer,okuta/chainer,hvy/chainer,niboshi/chainer,hvy/chainer,niboshi/chainer,ronekko/chainer,pfnet/chainer,wkentaro/chainer,jnishi/chainer,ktnyt/chainer,keisuke-umezawa/chainer,ktnyt/chainer,chainer/chainer,niboshi/chainer,keisuke-umezawa/chainer,niboshi/chainer,chainer/chainer,wkentaro/chainer,anaruse/chainer,okuta/chainer,okuta/chainer,wkentaro/chainer,wkentaro/chainer,jnishi/chainer,aonotas/chainer,chainer/chainer,hvy/chainer,rezoo/chainer,tkerola/chainer,chainer/chainer,keisuke-umezawa/chainer,ktnyt/chainer,okuta/chainer,hvy/chainer