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"""Fuzzing on the standard library."""
from __future__ import annotations
import sys
from contextlib import suppress
from typing import TYPE_CHECKING
import pytest
from griffe import GriffeLoader, LoadingError
if TYPE_CHECKING:
from collections.abc import Iterator
from griffe import Alias, Object
def _access_inherited_members(obj: Object | Alias) -> None:
try:
is_class = obj.is_class
except Exception: # noqa: BLE001
return
if is_class:
assert obj.inherited_members is not None
else:
for cls in obj.classes.values():
_access_inherited_members(cls)
@pytest.fixture(name="stdlib_loader", scope="session")
def fixture_stdlib_loader() -> Iterator[GriffeLoader]:
"""Yield a GriffeLoader instance.
During teardown, resolve aliases and access inherited members
to make sure that no exception is raised when computing MRO.
"""
loader = GriffeLoader(allow_inspection=False, store_source=False)
yield loader
loader.resolve_aliases(implicit=True, external=None)
for module in loader.modules_collection.members.values():
_access_inherited_members(module)
loader.stats()
@pytest.mark.skipif(sys.version_info < (3, 10), reason="Python less than 3.10 does not have sys.stdlib_module_names")
@pytest.mark.parametrize("mod", sorted([m for m in getattr(sys, "stdlib_module_names", ()) if not m.startswith("_")]))
def test_fuzzing_on_stdlib(stdlib_loader: GriffeLoader, mod: str) -> None:
"""Run Griffe on the standard library."""
with suppress(ImportError, LoadingError):
stdlib_loader.load(mod)
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