diff --git a/tests/Tensor_test.cpp b/tests/Tensor_test.cpp
index 1f06c330..2380c05a 100644
--- a/tests/Tensor_test.cpp
+++ b/tests/Tensor_test.cpp
@@ -2,6 +2,7 @@
 #include "test_tools.h"
 
 TEST_F(TensorTest, Constructor) {
+  // just test
   Tensor A;
   EXPECT_EQ(A.dtype(), Type.Void);
   EXPECT_EQ(A.device(), Device.cpu);