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#!/usr/bin/env python3
import os
from ctypes import CDLL
from ctypes import get_errno
from ctypes.util import find_library
from typing import List
from typing import Optional
import pytest
class LibCWrapper(object):
def __init__(self):
path: Optional[str] = find_library("c")
if path is None:
raise RuntimeError("libc not found")
self._libc = CDLL(path, use_errno=True)
def modfind(self, mod_name: str) -> int:
if self._libc.modfind(bytes(mod_name, encoding="ascii")) == -1:
return get_errno()
return 0
def jail_attach(self, jid: int) -> int:
if self._libc.jail_attach(jid) != 0:
return get_errno()
return 0
libc = LibCWrapper()
class BaseTest(object):
REQUIRED_MODULES: List[str] = []
def _check_modules(self):
for mod_name in self.REQUIRED_MODULES:
error_code = libc.modfind(mod_name)
if error_code != 0:
err_str = os.strerror(error_code)
pytest.skip(
"kernel module '{}' not available: {}".format(mod_name, err_str)
)
@property
def test_id(self):
# 'test_ip6_output.py::TestIP6Output::test_output6_pktinfo[ipandif] (setup)'
return os.environ.get("PYTEST_CURRENT_TEST").split(" ")[0]
def setup_method(self, method):
"""Run all pre-requisits for the test execution"""
self._check_modules()
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