diff --git a/venus/tests/unit/api/test_extensions.py b/venus/tests/unit/api/test_extensions.py
index 85e6558..2e8e24e 100644
--- a/venus/tests/unit/api/test_extensions.py
+++ b/venus/tests/unit/api/test_extensions.py
@@ -25,3 +25,7 @@ class TestExtensions(unittest.TestCase):
     def test_get_resources(self):
         result = self.extension_descriptor.get_resources()
         self.assertEqual(result, [])
+
+    def test_get_controller_extensions(self):
+        result = self.extension_descriptor.get_controller_extensions()
+        self.assertEqual(result, [])