diff --git a/paddle/function/BufferArgTest.cpp b/paddle/function/BufferArgTest.cpp
index b345597435c9911ce95b596f5f7f2add47f4cd03..1744f377808f137dcda4a28acce336dc22be3d01 100644
--- a/paddle/function/BufferArgTest.cpp
+++ b/paddle/function/BufferArgTest.cpp
@@ -14,9 +14,7 @@ limitations under the License. */
 
 #include "BufferArg.h"
 #include <gtest/gtest.h>
-#include "Function.h"
 #include "paddle/math/MemoryHandle.h"
-#include "paddle/math/SparseMatrix.h"
 
 namespace paddle {
 
@@ -37,55 +35,4 @@ TEST(BufferTest, SequenceIdArg) {
   EXPECT_EQ(buffer.numSeqs(), 9);
 }
 
-TEST(BufferTest, asArgument) {
-  MatrixPtr matrix = Matrix::create(100, 200);
-  VectorPtr vector = Vector::create(100, false);
-  CpuSparseMatrix sparse(200, 300, 50);
-
-  // prepare arguments
-  BufferArgs argments;
-  argments.addArg(*matrix);
-  argments.addArg(*vector);
-  argments.addArg(sparse);
-
-  // function
-  auto function = [=](const BufferArgs& inputs) {
-    EXPECT_EQ(inputs.size(), 3);
-
-    // check inputs[0]
-    EXPECT_EQ(inputs[0].shape().ndims(), 2);
-    EXPECT_EQ(inputs[0].shape()[0], 100);
-    EXPECT_EQ(inputs[0].shape()[1], 200);
-    EXPECT_EQ(inputs[0].data(), matrix->getData());
-
-    EXPECT_EQ(inputs[0].matrix<DEVICE_TYPE_CPU>().getHeight(),
-              matrix->getHeight());
-    EXPECT_EQ(inputs[0].matrix<DEVICE_TYPE_CPU>().getWidth(),
-              matrix->getWidth());
-    EXPECT_EQ(inputs[0].matrix<DEVICE_TYPE_CPU>().getData(), matrix->getData());
-
-    // check inputs[1]
-    EXPECT_EQ(inputs[1].shape().ndims(), 1);
-    EXPECT_EQ(inputs[1].shape()[0], 100);
-    EXPECT_EQ(inputs[1].data(), vector->getData());
-    CpuVector inVector = inputs[1].vector<real, DEVICE_TYPE_CPU>();
-    EXPECT_EQ(inVector.getSize(), vector->getSize());
-    EXPECT_EQ(inVector.getData(), vector->getData());
-
-    // check inputs[2]
-    EXPECT_EQ(inputs[2].shape().ndims(), 2);
-    EXPECT_EQ(inputs[2].shape()[0], 200);
-    EXPECT_EQ(inputs[2].shape()[1], 300);
-    EXPECT_EQ(inputs[2].data(), sparse.getData());
-    // CHECK_EQ(inputs[2].sparse().nnz(), 50);
-    // CHECK_EQ(inputs[2].sparse().dataFormat(), SPARSE_CSR_FORMAT);
-    // CHECK_EQ(inputs[2].sparse().dataType(), SPARSE_FLOAT_VALUE);
-    EXPECT_EQ(inputs[2].sparse().getRowBuf(), sparse.getRows());
-    EXPECT_EQ(inputs[2].sparse().getColBuf(), sparse.getCols());
-  };
-
-  // call function
-  function(argments);
-}
-
 }  // namespace paddle
diff --git a/paddle/function/FunctionTest.cpp b/paddle/function/FunctionTest.cpp
index 7ce908320a6f6f764e8fdacc96432aca78d7b2df..6e44c2f5dbf3472d9651b4c5cfa1f3bc9a80ffc1 100644
--- a/paddle/function/FunctionTest.cpp
+++ b/paddle/function/FunctionTest.cpp
@@ -14,6 +14,7 @@ limitations under the License. */
 
 #include "Function.h"
 #include <gtest/gtest.h>
+#include "paddle/math/SparseMatrix.h"
 
 namespace paddle {
 
@@ -56,4 +57,55 @@ TEST(Function, BufferArgs) {
   Function<DEVICE_TYPE_GPU>(gpuArgments);
 }
 
+TEST(BufferArgs, asArgument) {
+  MatrixPtr matrix = Matrix::create(100, 200);
+  VectorPtr vector = Vector::create(100, false);
+  CpuSparseMatrix sparse(200, 300, 50);
+
+  // prepare arguments
+  BufferArgs argments;
+  argments.addArg(*matrix);
+  argments.addArg(*vector);
+  argments.addArg(sparse);
+
+  // function
+  auto function = [=](const BufferArgs& inputs) {
+    EXPECT_EQ(inputs.size(), 3);
+
+    // check inputs[0]
+    EXPECT_EQ(inputs[0].shape().ndims(), 2);
+    EXPECT_EQ(inputs[0].shape()[0], 100);
+    EXPECT_EQ(inputs[0].shape()[1], 200);
+    EXPECT_EQ(inputs[0].data(), matrix->getData());
+
+    EXPECT_EQ(inputs[0].matrix<DEVICE_TYPE_CPU>().getHeight(),
+              matrix->getHeight());
+    EXPECT_EQ(inputs[0].matrix<DEVICE_TYPE_CPU>().getWidth(),
+              matrix->getWidth());
+    EXPECT_EQ(inputs[0].matrix<DEVICE_TYPE_CPU>().getData(), matrix->getData());
+
+    // check inputs[1]
+    EXPECT_EQ(inputs[1].shape().ndims(), 1);
+    EXPECT_EQ(inputs[1].shape()[0], 100);
+    EXPECT_EQ(inputs[1].data(), vector->getData());
+    CpuVector inVector = inputs[1].vector<real, DEVICE_TYPE_CPU>();
+    EXPECT_EQ(inVector.getSize(), vector->getSize());
+    EXPECT_EQ(inVector.getData(), vector->getData());
+
+    // check inputs[2]
+    EXPECT_EQ(inputs[2].shape().ndims(), 2);
+    EXPECT_EQ(inputs[2].shape()[0], 200);
+    EXPECT_EQ(inputs[2].shape()[1], 300);
+    EXPECT_EQ(inputs[2].data(), sparse.getData());
+    // CHECK_EQ(inputs[2].sparse().nnz(), 50);
+    // CHECK_EQ(inputs[2].sparse().dataFormat(), SPARSE_CSR_FORMAT);
+    // CHECK_EQ(inputs[2].sparse().dataType(), SPARSE_FLOAT_VALUE);
+    EXPECT_EQ(inputs[2].sparse().getRowBuf(), sparse.getRows());
+    EXPECT_EQ(inputs[2].sparse().getColBuf(), sparse.getCols());
+  };
+
+  // call function
+  function(argments);
+}
+
 }  // namespace paddle