diff --git a/httprunner/loader/check.py b/httprunner/loader/check.py
index 27e647a4..9654709b 100644
--- a/httprunner/loader/check.py
+++ b/httprunner/loader/check.py
@@ -127,6 +127,8 @@ def is_testcase_path(path):
         if not os.path.exists(path):
             return False
 
+        # TODO: check file format if valid
+
     return True