diff --git a/paddle/function/ConvOpTest.cpp b/paddle/function/ConvOpTest.cpp
index 280aed8a5c8e4eb782b9b494a84dd3194c21266c..59c7238d218a5adc4e19c9f6df627d7e203b965d 100644
--- a/paddle/function/ConvOpTest.cpp
+++ b/paddle/function/ConvOpTest.cpp
@@ -20,9 +20,9 @@ limitations under the License. */
 namespace paddle {
 
 enum TestType {
-  FORWARD_TEST = 0,
-  BACKWARD_INPUT_TEST = 1,
-  BACKWARD_FILTER_TEST = 2,
+  kForwardTest = 0,
+  kBackwardInputTest = 1,
+  kBackwardFilterTest = 2,
 };
 
 template <DeviceType DType1, DeviceType DType2>
@@ -43,16 +43,16 @@ public:
                   if (padding >= filterSize) break;
                   size_t outputSize =
                       (inputSize - filterSize + 2 * padding + stride) / stride;
-                  LOG(INFO) << " batchSize=" << batchSize
-                            << " inputChannels=" << inputChannels
-                            << " inputHeight=" << inputSize
-                            << " inputWidth=" << inputSize
-                            << " outputChannels=" << outputChannels
-                            << " filterHeight=" << filterSize
-                            << " filterWidth=" << filterSize
-                            << " outputHeight=" << outputSize
-                            << " outputWidth=" << outputSize
-                            << " stride=" << stride << " padding=" << padding;
+                  VLOG(3) << " batchSize=" << batchSize
+                          << " inputChannels=" << inputChannels
+                          << " inputHeight=" << inputSize
+                          << " inputWidth=" << inputSize
+                          << " outputChannels=" << outputChannels
+                          << " filterHeight=" << filterSize
+                          << " filterWidth=" << filterSize
+                          << " outputHeight=" << outputSize
+                          << " outputWidth=" << outputSize
+                          << " stride=" << stride << " padding=" << padding;
 
                   std::vector<size_t> paddings = {padding, padding};
                   std::vector<size_t> strides = {stride, stride};
@@ -72,17 +72,17 @@ public:
                   TensorShape output{
                       batchSize, outputChannels, outputSize, outputSize};
 
-                  if (type == FORWARD_TEST) {
+                  if (type == kForwardTest) {
                     test.addInputs(BufferArg(VALUE_TYPE_FLOAT, input));
                     test.addInputs(BufferArg(VALUE_TYPE_FLOAT, filter));
                     test.addOutputs(BufferArg(VALUE_TYPE_FLOAT, output));
                     test.run();
-                  } else if (type == BACKWARD_INPUT_TEST) {
+                  } else if (type == kBackwardInputTest) {
                     test.addInputs(BufferArg(VALUE_TYPE_FLOAT, output));
                     test.addInputs(BufferArg(VALUE_TYPE_FLOAT, filter));
                     test.addOutputs(BufferArg(VALUE_TYPE_FLOAT, input), ADD_TO);
                     test.run();
-                  } else if (type == BACKWARD_FILTER_TEST) {
+                  } else if (type == kBackwardFilterTest) {
                     test.addInputs(BufferArg(VALUE_TYPE_FLOAT, output));
                     test.addInputs(BufferArg(VALUE_TYPE_FLOAT, input));
                     test.addOutputs(BufferArg(VALUE_TYPE_FLOAT, filter));
@@ -100,23 +100,23 @@ public:
 
 TEST(Forward, GEMM) {
   ConvolutionTest<DEVICE_TYPE_CPU, DEVICE_TYPE_CPU> test(
-      "NaiveConv-CPU", "GemmConv-CPU", FORWARD_TEST);
+      "NaiveConv-CPU", "GemmConv-CPU", kForwardTest);
 }
 
 #ifndef PADDLE_ONLY_CPU
 TEST(Forward, GEMM2) {
   ConvolutionTest<DEVICE_TYPE_CPU, DEVICE_TYPE_GPU> test(
-      "GemmConv-CPU", "GemmConv-GPU", FORWARD_TEST);
+      "GemmConv-CPU", "GemmConv-GPU", kForwardTest);
 }
 
 TEST(BackwardInput, GEMM) {
   ConvolutionTest<DEVICE_TYPE_CPU, DEVICE_TYPE_GPU> test(
-      "GemmConvGradInput-CPU", "GemmConvGradInput-GPU", BACKWARD_INPUT_TEST);
+      "GemmConvGradInput-CPU", "GemmConvGradInput-GPU", kBackwardInputTest);
 }
 
 TEST(BackwardFilter, GEMM) {
   ConvolutionTest<DEVICE_TYPE_CPU, DEVICE_TYPE_GPU> test(
-      "GemmConvGradFilter-CPU", "GemmConvGradFilter-GPU", BACKWARD_FILTER_TEST);
+      "GemmConvGradFilter-CPU", "GemmConvGradFilter-GPU", kBackwardFilterTest);
 }
 #endif