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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
# Copyright (c) https://github.com/PyCQA/pylint/graphs/contributors
"""Functional full-module tests for PyLint."""
import sys
from pathlib import Path
from typing import Union
import pytest
from _pytest.config import Config
from _pytest.recwarn import WarningsRecorder
from pylint import testutils
from pylint.testutils import UPDATE_FILE, UPDATE_OPTION
from pylint.testutils.functional import (
FunctionalTestFile,
LintModuleOutputUpdate,
get_functional_test_files_from_directory,
)
from pylint.utils import HAS_ISORT_5
# TODOs
# - implement exhaustivity tests
FUNCTIONAL_DIR = Path(__file__).parent.resolve() / "functional"
# isort 5 has slightly different rules as isort 4. Testing both would be hard: test with isort 5 only.
TESTS = [
t
for t in get_functional_test_files_from_directory(FUNCTIONAL_DIR)
if not (t.base == "wrong_import_order" and not HAS_ISORT_5)
]
TESTS_NAMES = [t.base for t in TESTS]
TEST_WITH_EXPECTED_DEPRECATION = [
"future_unicode_literals",
"anomalous_unicode_escape_py3",
]
@pytest.mark.parametrize("test_file", TESTS, ids=TESTS_NAMES)
def test_functional(
test_file: FunctionalTestFile, recwarn: WarningsRecorder, pytestconfig: Config
) -> None:
__tracebackhide__ = True # pylint: disable=unused-variable
if UPDATE_FILE.exists():
lint_test: Union[
LintModuleOutputUpdate, testutils.LintModuleTest
] = LintModuleOutputUpdate(test_file, pytestconfig)
else:
lint_test = testutils.LintModuleTest(test_file, pytestconfig)
lint_test.setUp()
lint_test.runTest()
warning = None
try:
# Catch <unknown>:x: DeprecationWarning: invalid escape sequence,
# so, it's not shown during tests
warning = recwarn.pop()
except AssertionError:
pass
if warning is not None:
if (
test_file.base in TEST_WITH_EXPECTED_DEPRECATION
and sys.version_info.minor > 5
):
assert issubclass(warning.category, DeprecationWarning)
assert "invalid escape sequence" in str(warning.message)
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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