Describe the current behavior / 问题描述 (Mandatory / 必填)

算子在ascend运行用例
def test_combinations_input_is_null():
x = Tensor([])
input_list = [x]
fact = CombinationsMock(inputs=input_list)
# with pytest.raises(TypeError):
# fact.forward_mindspore_impl()

fact.forward_cmp()
fact.grad_cmp()
fact.grad_pytorch_impl()

Environment / 环境信息 (Mandatory / 必填)

• Hardware Environment(Ascend/GPU/CPU) / 硬件环境:

Please delete the backend not involved / 请删除不涉及的后端:
/device ascend/GPU/CPU/kirin/等其他芯片

• Software Environment / 软件环境 (Mandatory / 必填):
  -- MindSpore version (e.g., 1.7.0.Bxxx) :
  -- Python version (e.g., Python 3.7.5) :
  -- OS platform and distribution (e.g., Linux Ubuntu 16.04):
  -- GCC/Compiler version (if compiled from source):

• Excute Mode / 执行模式 (Mandatory / 必填)(PyNative/Graph):

Please delete the mode not involved / 请删除不涉及的模式:
/mode pynative
/mode graph

Related testcase / 关联用例 (Mandatory / 必填)

test_combinations_input_is_null

Steps to reproduce the issue / 重现步骤 (Mandatory / 必填)

Describe the expected behavior / 预期结果 (Mandatory / 必填)

正向通过反向报错 合适，并且提示ValueError: input_data can not contain zero dimension

Related log / screenshot / 日志 / 截图 (Mandatory / 必填)

Special notes for this issue/备注 (Optional / 选填)