diff --git a/approvaltests/namer/stack_frame_namer.py b/approvaltests/namer/stack_frame_namer.py
index 6359550d..72d19b35 100644
--- a/approvaltests/namer/stack_frame_namer.py
+++ b/approvaltests/namer/stack_frame_namer.py
@@ -45,7 +45,10 @@ def get_test_frame_index(caller: List[FrameInfo]) -> int:
     def is_pytest_test(frame: FrameInfo) -> bool:
         method_name = frame[3]
         patterns = PytestConfig.test_naming_patterns
-
+        return StackFrameNamer._is_match_for_pytest(method_name, patterns)
+    @staticmethod
+    def _is_match_for_pytest(method_name: str, patterns: List[str]) -> bool:
+        # Do not modify this method, so we can compare with original code
         # taken from pytest/python.py (class PyCollector)
         for pattern in patterns:
             if method_name.startswith(pattern):
@@ -54,12 +57,12 @@ def is_pytest_test(frame: FrameInfo) -> bool:
                 # because this is called for every name in each collected module,
                 # and fnmatch is somewhat expensive to call.
             elif (
-                "*" in pattern or "?" in pattern or "[" in pattern
+                    "*" in pattern or "?" in pattern or "[" in pattern
             ) and fnmatch.fnmatch(method_name, pattern):
                 return True
 
         return False
-
+    
     @staticmethod
     def is_unittest_test(frame: FrameInfo) -> bool:
         method_name = frame[3]
@@ -107,3 +110,5 @@ def get_test_frame(cls) -> FrameInfo:
         calling_stack = inspect.stack(1)
         frame = StackFrameNamer.get_test_frame_index(calling_stack)
         return calling_stack[frame]
+
+