Try to increase test coverage

pylint-dev · Julfried · May 26, 2025 · May 26, 2025 · Jun 29, 2025 · Jul 2, 2025
commit a76ccc57536245b2af61bc78ea8c7b24a7003e4a
diff --git a/tests/functional/i/invalid/invalid_overridden_method.py b/tests/functional/i/invalid/invalid_overridden_method.py
@@ -130,13 +130,21 @@ def bar2(self):  # [invalid-overridden-method]
 
 # https://github.com/pylint-dev/pylint/issues/10351
 # Test case for return type mismatch
+class ReturnType(TextIOWrapper):
+    pass
+
 class BaseClass(abc.ABC):
     @abc.abstractmethod
     def read_file(self, path: str) -> TextIOWrapper:
         """Abstract method that should return a TextIOWrapper."""
         raise NotImplementedError("Method must be implemented by subclass")
 
-class ChildClass(BaseClass):
+class ChildClass1(BaseClass):
     def read_file(self, path: str) -> BytesIO:  # [invalid-overridden-method]
         """Implementation returns BytesIO instead of TextIOWrapper."""
         return BytesIO(b"content")
+
+class ChildClass2(BaseClass):
+    def read_file(self, path: str) -> ReturnType:
+        """Implementation returns BytesIO instead of TextIOWrapper."""
+        return ReturnType(BytesIO(b"content"))
diff --git a/tests/functional/i/invalid/invalid_overridden_method.txt b/tests/functional/i/invalid/invalid_overridden_method.txt
@@ -4,4 +4,4 @@ invalid-overridden-method:46:4:46:16:InvalidDerived.method_a:Method 'method_a' w
 invalid-overridden-method:49:4:49:22:InvalidDerived.method_b:Method 'method_b' was expected to be 'non-async', found it instead as 'async':UNDEFINED
 invalid-overridden-method:123:4:123:11:B.bar:Method 'bar' was expected to be 'property', found it instead as 'method':UNDEFINED
 invalid-overridden-method:127:4:127:12:B.bar2:Method 'bar2' was expected to be 'property', found it instead as 'method':UNDEFINED
-invalid-overridden-method:140:4:140:17:ChildClass.read_file:Method 'read_file' was expected to be "return type 'TextIOWrapper'", found it instead as "return type 'BytesIO'":UNDEFINED
+invalid-overridden-method:143:4:143:17:ChildClass1.read_file:Method 'read_file' was expected to be "return type 'TextIOWrapper'", found it instead as "return type 'BytesIO'":UNDEFINED