"""Pytest configuration and fixtures."""
import os
import pytest
@pytest.fixture(autouse=True)
def clear_pytest_env_leakage():
"""Clear pytest env vars that would interfere with debugged pytest subprocess.
When running pytest e2e tests, the outer pytest process sets environment variables
like PYTEST_ADDOPTS that get inherited by debugged pytest subprocesses. This causes
test filtering/deselection in the debugged process.
This fixture clears these vars before each test and restores them after.
"""
vars_to_clear = ["PYTEST_ADDOPTS", "PYTEST_CURRENT_TEST"]
saved = {k: os.environ.pop(k, None) for k in vars_to_clear}
yield
for k, v in saved.items():
if v is not None:
os.environ[k] = v
