Coverage for tests/test_stdlib.py: 95.56%

1"""Fuzzing on the standard library.""" 

2 

3from __future__ import annotations 

4 

5import sys 

6from contextlib import suppress 

7from typing import TYPE_CHECKING, Iterator 

8 

9import pytest 

10 

11from griffe import GriffeLoader, LoadingError 

12 

13if TYPE_CHECKING: 

14 from griffe import Alias, Object 

15 

16 

17def _access_inherited_members(obj: Object | Alias) -> None: 

18 try: 

19 is_class = obj.is_class 

20 except Exception: # noqa: BLE001 

21 return 

22 if is_class: 

23 assert obj.inherited_members is not None 

24 else: 

25 for cls in obj.classes.values(): 

26 _access_inherited_members(cls) 

27 

28 

29@pytest.fixture(name="stdlib_loader", scope="session") 

30def fixture_stdlib_loader() -> Iterator[GriffeLoader]: 

31 """Yield a GriffeLoader instance. 

32 

33 During teardown, resolve aliases and access inherited members 

34 to make sure that no exception is raised when computing MRO. 

35 """ 

36 loader = GriffeLoader(allow_inspection=False, store_source=False) 

37 yield loader 

38 loader.resolve_aliases(implicit=True, external=None) 

39 for module in loader.modules_collection.members.values(): 

40 _access_inherited_members(module) 

41 loader.stats() 

42 

43 

44@pytest.mark.skipif(sys.version_info < (3, 10), reason="Python less than 3.10 does not have sys.stdlib_module_names") 

45@pytest.mark.parametrize("mod", sorted([m for m in getattr(sys, "stdlib_module_names", ()) if not m.startswith("_")])) 

46def test_fuzzing_on_stdlib(stdlib_loader: GriffeLoader, mod: str) -> None: 

47 """Run Griffe on the standard library.""" 

48 with suppress(ImportError, LoadingError): 

49 stdlib_loader.load(mod)