fix a unit test
fix a unit test

tensor-tang/Paddle,lcy-seso/Paddle,lcy-seso/Paddle,reyoung/Paddle,pkuyym/Paddle,putcn/Paddle,PaddlePaddle/Paddle,jacquesqiao/Paddle,putcn/Paddle,chengduoZH/Paddle,baidu/Paddle,Canpio/Paddle,baidu/Paddle,luotao1/Paddle,reyoung/Paddle,jacquesqiao/Paddle,chengduoZH/Paddle,putcn/Paddle,PaddlePaddle/Paddle,lcy-seso/Paddle,putcn/Paddle,Canpio/Paddle,Canpio/Paddle,baidu/Paddle,pkuyym/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,reyoung/Paddle,baidu/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,tensor-tang/Paddle,QiJune/Paddle,reyoung/Paddle,Canpio/Paddle,baidu/Paddle,luotao1/Paddle,lcy-seso/Paddle,Canpio/Paddle,lcy-seso/Paddle,luotao1/Paddle,chengduoZH/Paddle,PaddlePaddle/Paddle,putcn/Paddle,pkuyym/Paddle,QiJune/Paddle,jacquesqiao/Paddle,PaddlePaddle/Paddle,Canpio/Paddle,pkuyym/Paddle,pkuyym/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,reyoung/Paddle,pkuyym/Paddle,QiJune/Paddle,jacquesqiao/Paddle,luotao1/Paddle,tensor-tang/Paddle,jacquesqiao/Paddle,Canpio/Paddle,reyoung/Paddle,QiJune/Paddle,lcy-seso/Paddle,luotao1/Paddle,luotao1/Paddle,chengduoZH/Paddle,QiJune/Paddle,jacquesqiao/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,putcn/Paddle,chengduoZH/Paddle