!1448 Fix input check in graphdata

Merge pull request !1448 from heleiwang/fix_input_check

mindspore/ccsrc/dataset/engine/gnn/graph.cc

@@ -152,6 +152,7 @@ Status Graph::GetNodeFeature(const std::shared_ptr<Tensor> &nodes, const std::ve
   if (!nodes || nodes->Size() == 0) {
     RETURN_STATUS_UNEXPECTED("Input nodes is empty");
   }
+  CHECK_FAIL_RETURN_UNEXPECTED(!feature_types.empty(), "Inpude feature_types is empty");
   TensorRow tensors;
   for (auto f_type : feature_types) {
     std::shared_ptr<Feature> default_feature;

mindspore/dataset/engine/validators.py

@@ -1153,6 +1153,9 @@ def check_aligned_list(param, param_name, membor_type):
 
     if not isinstance(param, list):
         raise TypeError("Parameter {0} is not a list".format(param_name))
+    if not param:
+        raise TypeError(
+            "Parameter {0} or its members are empty".format(param_name))
     membor_have_list = None
     list_len = None
     for membor in param: