Files
sigma-rules/tests/base.py
T
Sergey Polzunov 1fb60d6475 fix: type hinting fixes and additional code checks (#4790)
* first pass

* Adding a dedicated code checking workflow

* Type fixes

* linting config and python version bump

* Type hints

* Drop incorrect config option

* More fixes

* Style fixes

* CI adjustments

* Pyproject fixes

* CI & pyproject fixes

* Proper version bump

* Tests formatting

* Resolve cirtular dependency

* Test fixes

* Make sure the tests are formatted correctly

* Check tweaks

* Bumping python version in CI images

* Pin marshmallow do 3.x because 4.x is not supported

* License fix

* Convert path to str

* Making myself a codeowner

* Missing kwargs param

* Adding a missing kwargs to `set_score`

* Update .github/CODEOWNERS

Co-authored-by: Mika Ayenson, PhD <Mikaayenson@users.noreply.github.com>

* Dropping unnecessary raise

* Dropping skipped test

* Drop unnecessary var

* Drop unused commented-out func

* Disable typehinting for the whole func

* Update linting command

* Invalid type hist on the input param

* Incorrect field type

* Incorrect value used fix

* Stricter values check

* Simpler function call

* Type condition fix

* TOML formatter fix

* Simpligy output conditions

* Formatting

* Use proper types instead of aliases

* MITRE attack fixes

* Using pathlib.Path for an argument

* Use proper method to update a set from a dict

* First round of `ruff` fixes

* More fixes

* More fixes

* Hack against cyclic dependency

* Ignore `PLC0415`

* Remove unused markers

* Cleanup

* Fixing the incorrect condition

* Update .github/CODEOWNERS

Co-authored-by: Mika Ayenson, PhD <Mikaayenson@users.noreply.github.com>

* Set explicit default values for optional fields

* Update the guidelines

* Adding None Defaults

---------

Co-authored-by: Mika Ayenson, PhD <Mikaayenson@users.noreply.github.com>
Co-authored-by: eric-forte-elastic <eric.forte@elastic.co>
2025-07-01 08:20:55 -05:00

86 lines
2.9 KiB
Python

# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
# or more contributor license agreements. Licensed under the Elastic License
# 2.0; you may not use this file except in compliance with the Elastic License
# 2.0.
"""Shared resources for tests."""
import os
import unittest
from functools import lru_cache
from pathlib import Path
from detection_rules.config import parse_rules_config
from detection_rules.rule import TOMLRule
from detection_rules.rule_loader import DeprecatedCollection, DeprecatedRule, RuleCollection, production_filter
RULE_LOADER_FAIL = False
RULE_LOADER_FAIL_MSG = None
RULE_LOADER_FAIL_RAISED = False
CUSTOM_RULES_DIR = os.getenv("CUSTOM_RULES_DIR", None)
RULES_CONFIG = parse_rules_config()
@lru_cache
def load_rules() -> RuleCollection:
if CUSTOM_RULES_DIR:
rc = RuleCollection()
path = Path(CUSTOM_RULES_DIR)
assert path.exists(), f"Custom rules directory {path} does not exist"
rc.load_directories(directories=RULES_CONFIG.rule_dirs)
rc.freeze()
return rc
return RuleCollection.default()
def default_bbr(rc: RuleCollection) -> RuleCollection:
rules = [r for r in rc.rules if "rules_building_block" in r.path.parent.parts]
return RuleCollection(rules=rules)
class BaseRuleTest(unittest.TestCase):
"""Base class for shared test cases which need to load rules"""
RULE_LOADER_FAIL = False
RULE_LOADER_FAIL_MSG = None
RULE_LOADER_FAIL_RAISED = False
@classmethod
def setUpClass(cls):
global RULE_LOADER_FAIL, RULE_LOADER_FAIL_MSG # noqa: PLW0603
if not RULE_LOADER_FAIL:
try:
rc = load_rules()
rc_bbr = default_bbr(rc)
cls.rc = rc
cls.all_rules = rc.filter(production_filter)
cls.bbr = rc_bbr.rules
cls.deprecated_rules: DeprecatedCollection = rc.deprecated
except Exception as e: # noqa: BLE001
RULE_LOADER_FAIL = True
RULE_LOADER_FAIL_MSG = str(e)
cls.custom_dir = Path(CUSTOM_RULES_DIR).resolve() if CUSTOM_RULES_DIR else None
cls.rules_config = RULES_CONFIG
@staticmethod
def rule_str(rule: DeprecatedRule | TOMLRule, trailer=" ->") -> str:
return f"{rule.id} - {rule.name}{trailer or ''}"
def setUp(self) -> None:
global RULE_LOADER_FAIL_RAISED # noqa: PLW0603
if RULE_LOADER_FAIL:
# limit the loader failure to just one run
# raise a dedicated test failure for the loader
if not RULE_LOADER_FAIL_RAISED:
RULE_LOADER_FAIL_RAISED = True
with self.subTest("Test that the rule loader loaded with no validation or other failures."):
self.fail(f"Rule loader failure: {RULE_LOADER_FAIL_MSG}")
self.skipTest("Rule loader failure")
else:
super().setUp()