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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/pylint-dev/pylint/blob/main/LICENSE
# Copyright (c) https://github.com/pylint-dev/pylint/blob/main/CONTRIBUTORS.txt
"""Functional full-module tests for PyLint."""
from __future__ import annotations
import sys
from collections.abc import Iterator
from pathlib import Path
from typing import TYPE_CHECKING
import pytest
from _pytest.config import Config
from pylint import testutils
from pylint.constants import PY312_PLUS
from pylint.lint.pylinter import MANAGER
from pylint.testutils import UPDATE_FILE, UPDATE_OPTION
from pylint.testutils.functional import (
FunctionalTestFile,
LintModuleOutputUpdate,
get_functional_test_files_from_directory,
)
if TYPE_CHECKING:
from pylint.lint import PyLinter
FUNCTIONAL_DIR = Path(__file__).parent.resolve() / "functional"
TEST_WITH_EXPECTED_DEPRECATION = [
"anomalous_backslash_escape",
"anomalous_unicode_escape",
"excess_escapes",
"future_unicode_literals",
]
@pytest.fixture
def revert_stateful_config_changes(linter: PyLinter) -> Iterator[PyLinter]:
yield linter
# Revert any stateful configuration changes.
MANAGER.brain["module_denylist"] = set()
MANAGER.brain["prefer_stubs"] = False
@pytest.mark.usefixtures("revert_stateful_config_changes")
@pytest.mark.parametrize(
"test_file",
get_functional_test_files_from_directory(FUNCTIONAL_DIR),
ids=lambda x: x.base,
)
def test_functional(test_file: FunctionalTestFile, pytestconfig: Config) -> None:
__tracebackhide__ = True # pylint: disable=unused-variable
lint_test: LintModuleOutputUpdate | testutils.LintModuleTest
if UPDATE_FILE.exists():
lint_test = LintModuleOutputUpdate(test_file, pytestconfig)
else:
lint_test = testutils.LintModuleTest(test_file, pytestconfig)
lint_test.setUp()
if test_file.base in TEST_WITH_EXPECTED_DEPRECATION:
exception_type = SyntaxWarning if PY312_PLUS else DeprecationWarning
with pytest.warns(exception_type, match="invalid escape sequence"):
lint_test.runTest()
else:
lint_test.runTest()
if __name__ == "__main__":
if UPDATE_OPTION in sys.argv:
UPDATE_FILE.touch()
sys.argv.remove(UPDATE_OPTION)
try:
pytest.main(sys.argv)
finally:
if UPDATE_FILE.exists():
UPDATE_FILE.unlink()
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