diff --git a/tests/ut/parser/testcase/graph_optimizer_testcase/graph_optimizer_unittest.cc b/tests/ut/parser/testcase/graph_optimizer_testcase/graph_optimizer_unittest.cc
index 0627af8..94d201d 100644
--- a/tests/ut/parser/testcase/graph_optimizer_testcase/graph_optimizer_unittest.cc
+++ b/tests/ut/parser/testcase/graph_optimizer_testcase/graph_optimizer_unittest.cc
@@ -9,58 +9,54 @@
 #define private public
 #include "tensorflow/graph_optimizer.h"
 #undef private
-namespace ge
-{
-  class UtestGraphOptimizer : public testing::Test
-  {
+namespace ge {
+  class UtestGraphOptimizer : public testing::Test {
     protected:
       void SetUp() {}
       void TearDown() {}
   };
-  namespace
-  {
-    ComputeGraphPtr MakeGraph() {
-      ge::ut::GraphBuilder builder("graph");
-      std::string name = "graph";
-      std::string original_type;
-      original_type = "IteratorV2"; //
-      auto data1 = builder.AddNode(name + "_" + original_type, ge::parser::FRAMEWORKOP, 1, 1);
-      ge::AttrUtils::SetStr(data1->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_ORIGINAL_TYPE, original_type);
-      original_type = "IteratorGetNext";
-      auto data2 = builder.AddNode(name + "_" + original_type + "2", ge::parser::FRAMEWORKOP, 1, 2);
-      ge::AttrUtils::SetStr(data2->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_ORIGINAL_TYPE, original_type);
-      string nodefStr;
-      AttrUtils::SetZeroCopyBytes(
-      data2->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_NODE_DEF,
-      Buffer::CopyFrom(reinterpret_cast<const uint8_t *>(nodefStr.data()), nodefStr.length()));
-      original_type = "IteratorGetNext";
-      auto data3 = builder.AddNode(name + "_" + original_type + "3", ge::parser::FRAMEWORKOP, 2, 1);
-      ge::AttrUtils::SetStr(data3->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_ORIGINAL_TYPE, original_type);
-      AttrUtils::SetZeroCopyBytes(
-      data3->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_NODE_DEF,
-      Buffer::CopyFrom(reinterpret_cast<const uint8_t *>(nodefStr.data()), nodefStr.length()));
+namespace {
+  ComputeGraphPtr MakeGraph() {
+  ge::ut::GraphBuilder builder("graph");
+  std::string name = "graph";
+  std::string original_type;
+  original_type = "IteratorV2"; //
+  auto data1 = builder.AddNode(name + "_" + original_type, ge::parser::FRAMEWORKOP, 1, 1);
+  ge::AttrUtils::SetStr(data1->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_ORIGINAL_TYPE, original_type);
+  original_type = "IteratorGetNext";
+  auto data2 = builder.AddNode(name + "_" + original_type + "2", ge::parser::FRAMEWORKOP, 1, 2);
+  ge::AttrUtils::SetStr(data2->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_ORIGINAL_TYPE, original_type);
+  string nodefStr;
+  AttrUtils::SetZeroCopyBytes(
+  data2->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_NODE_DEF,
+  Buffer::CopyFrom(reinterpret_cast<const uint8_t *>(nodefStr.data()), nodefStr.length()));
+  original_type = "IteratorGetNext";
+  auto data3 = builder.AddNode(name + "_" + original_type + "3", ge::parser::FRAMEWORKOP, 2, 1);
+  ge::AttrUtils::SetStr(data3->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_ORIGINAL_TYPE, original_type);
+  AttrUtils::SetZeroCopyBytes(
+  data3->GetOpDesc(), ge::ATTR_NAME_FRAMEWORK_NODE_DEF,
+  Buffer::CopyFrom(reinterpret_cast<const uint8_t *>(nodefStr.data()), nodefStr.length()));
 
-      builder.AddDataEdge(data1, 0, data2, 0);
-      builder.AddDataEdge(data2, 0, data3, 0);
-      builder.AddDataEdge(data2, 1, data3, 1);
-      return builder.GetGraph();
-    }
+  builder.AddDataEdge(data1, 0, data2, 0);
+  builder.AddDataEdge(data2, 0, data3, 0);
+  builder.AddDataEdge(data2, 1, data3, 1);
+  return builder.GetGraph();
   }
+}
+TEST_F(UtestGraphOptimizer, graph_optimizer) {
+  ge::ComputeGraphPtr graph = MakeGraph();
+  ge::IteratorFusionPass iteratorFusionPass(domi::TENSORFLOW);
+  EXPECT_NE(iteratorFusionPass.Run(graph), ge::SUCCESS);
+}
+TEST_F(UtestGraphOptimizer, graph_optimizer_output) {
+  ge::ComputeGraphPtr graph = MakeGraph();
+  domi::FrameworkType type = domi::TENSORFLOW;
+  ge::ParserGraphOptimizer parserGraphOptimizer(graph, type);
 
-  TEST_F(UtestGraphOptimizer, graph_optimizer) {
-    ge::ComputeGraphPtr graph = MakeGraph();
-    ge::IteratorFusionPass iteratorFusionPass(domi::TENSORFLOW);
-    EXPECT_NE(iteratorFusionPass.Run(graph), ge::SUCCESS);
-  }
-  TEST_F(UtestGraphOptimizer, graph_optimizer_output) {
-    ge::ComputeGraphPtr graph = MakeGraph();
-    domi::FrameworkType type = domi::TENSORFLOW;
-    ge::ParserGraphOptimizer parserGraphOptimizer(graph, type);
-
-    vector<ge::InDataAnchorPtr> input_anchors;
-    vector<ge::OutDataAnchorPtr> output_anchors;
-    ge::OpDescPtr fusion_op_desc;
-    EXPECT_NE(parserGraphOptimizer.RebuildInputAnchors(input_anchors, fusion_op_desc), ge::SUCCESS);
-    EXPECT_NE(parserGraphOptimizer.RebuildOutputAnchors(output_anchors, fusion_op_desc), ge::SUCCESS);
-  }
+  vector<ge::InDataAnchorPtr> input_anchors;
+  vector<ge::OutDataAnchorPtr> output_anchors;
+  ge::OpDescPtr fusion_op_desc;
+  EXPECT_NE(parserGraphOptimizer.RebuildInputAnchors(input_anchors, fusion_op_desc), ge::SUCCESS);
+  EXPECT_NE(parserGraphOptimizer.RebuildOutputAnchors(output_anchors, fusion_op_desc), ge::SUCCESS);
+}
 }
\ No newline at end of file