Use autospec in mock creation.
Use autospec in mock creation.

wkentaro/chainer,hvy/chainer,okuta/chainer,kashif/chainer,ysekky/chainer,ktnyt/chainer,ktnyt/chainer,chainer/chainer,wkentaro/chainer,cupy/cupy,ktnyt/chainer,okuta/chainer,ktnyt/chainer,niboshi/chainer,cupy/cupy,niboshi/chainer,jnishi/chainer,jnishi/chainer,keisuke-umezawa/chainer,niboshi/chainer,aonotas/chainer,keisuke-umezawa/chainer,kiyukuta/chainer,chainer/chainer,pfnet/chainer,delta2323/chainer,niboshi/chainer,jnishi/chainer,okuta/chainer,ronekko/chainer,hvy/chainer,anaruse/chainer,wkentaro/chainer,tkerola/chainer,keisuke-umezawa/chainer,cupy/cupy,hvy/chainer,chainer/chainer,hvy/chainer,okuta/chainer,wkentaro/chainer,jnishi/chainer,rezoo/chainer,keisuke-umezawa/chainer,chainer/chainer,cupy/cupy