Clear flushed files before running tests

Author: George-Ogden

mypy_pytest_plugin/checker_wrapper.py

@@ -18,9 +18,6 @@ class CheckerWrapper(abc.ABC):
     def __init__(self) -> None: ...
 
     def fail(self, msg: str, *, context: Context, code: ErrorCode, file: None | str = None) -> None:
-        self.checker.msg.errors.flushed_files.discard(
-            self.checker.msg.errors.file if file is None else file
-        )
         self.checker.msg.fail(msg, context=context, code=code, file=file)
 
     def note(self, msg: str, *, context: Context, code: ErrorCode | None) -> None:

mypy_pytest_plugin/test_utils.py

@@ -133,6 +133,8 @@ def parse_multiple(modules: Sequence[tuple[str, str]], *, header: str = "") -> M
             raise ValueError(f"Unable to infer types. Errors: {state.early_errors}")
 
         type_checker = state.type_checker()
+        type_checker.msg.errors.flushed_files.clear()
+
         errors = type_checker.errors
         if errors.is_errors():
             for info in errors.error_info_map.values():