Fit ut.

ge/generator/ge_generator.cc

@@ -696,10 +696,7 @@ Status GeGenerator::BuildSingleOp(OpDescPtr &op_desc, const vector<GeTensor> &in
   // 1. Create ComputeGraph.
   string name = ge::CurrentTimeInStr() + "_" + model_file_name;
   Graph graph;
-  if (BuildSingleOpGraph(op_desc, inputs, outputs, name, graph) != ge::SUCCESS) {
-    GELOGE(GRAPH_FAILED, "make graph fail.");
-    return GRAPH_FAILED;
-  }
+  GE_CHK_STATUS(BuildSingleOpGraph(op_desc, inputs, outputs, name, graph), "make graph fail.");
 
   // 2. check engine type when compile online
   if (model_file_name == kFileNameSuffix) {