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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
"""Non regression tests for pylint, which requires a too specific configuration
to be incorporated in the automatic functional test framework
"""
# pylint: disable=redefined-outer-name
from __future__ import annotations
import os
import sys
from collections.abc import Callable, Iterator
from os.path import abspath, dirname, join
from typing import cast
import pytest
from pylint import testutils
from pylint.lint.pylinter import PyLinter
REGR_DATA = join(dirname(abspath(__file__)), "regrtest_data")
sys.path.insert(1, REGR_DATA)
@pytest.fixture(scope="module")
def reporter() -> type[testutils.GenericTestReporter]:
return testutils.GenericTestReporter
@pytest.fixture(scope="module")
def disable() -> list[str]:
return ["I"]
@pytest.fixture
def finalize_linter(linter: PyLinter) -> Iterator[PyLinter]:
"""Call reporter.finalize() to clean up pending messages if a test
finished badly.
"""
yield linter
linter.reporter = cast( # Due to fixture
testutils.GenericTestReporter, linter.reporter
)
linter.reporter.finalize()
def Equals(expected: str) -> Callable[[str], bool]:
return lambda got: got == expected
@pytest.mark.parametrize(
"file_names, check",
[
(["package.__init__"], Equals("")),
(["precedence_test"], Equals("")),
(["import_package_subpackage_module"], Equals("")),
(["pylint.checkers.__init__"], lambda x: "__path__" not in x),
([join(REGR_DATA, "classdoc_usage.py")], Equals("")),
([join(REGR_DATA, "module_global.py")], Equals("")),
([join(REGR_DATA, "decimal_inference.py")], Equals("")),
([join(REGR_DATA, "absimp", "string.py")], Equals("")),
([join(REGR_DATA, "bad_package")], lambda x: "Unused import missing" in x),
],
)
def test_package(
finalize_linter: PyLinter, file_names: list[str], check: Callable[[str], bool]
) -> None:
finalize_linter.check(file_names)
finalize_linter.reporter = cast( # Due to fixture
testutils.GenericTestReporter, finalize_linter.reporter
)
got = finalize_linter.reporter.finalize().strip()
assert check(got)
@pytest.mark.parametrize(
"file_names",
[
[join(REGR_DATA, "import_assign.py")],
[join(REGR_DATA, "special_attr_scope_lookup_crash.py")],
[join(REGR_DATA, "try_finally_disable_msg_crash")],
],
)
def test_crash(finalize_linter: PyLinter, file_names: list[str]) -> None:
finalize_linter.check(file_names)
@pytest.mark.parametrize(
"fname", [x for x in os.listdir(REGR_DATA) if x.endswith("_crash.py")]
)
def test_descriptor_crash(fname: str, finalize_linter: PyLinter) -> None:
finalize_linter.check([join(REGR_DATA, fname)])
finalize_linter.reporter = cast( # Due to fixture
testutils.GenericTestReporter, finalize_linter.reporter
)
finalize_linter.reporter.finalize().strip()
@pytest.fixture
def modify_path() -> Iterator[None]:
cwd = os.getcwd()
sys.path.insert(0, "")
yield
sys.path.pop(0)
os.chdir(cwd)
@pytest.mark.usefixtures("modify_path")
def test_check_package___init__(finalize_linter: PyLinter) -> None:
filename = ["package.__init__"]
finalize_linter.check(filename)
checked = list(finalize_linter.stats.by_module.keys())
assert sorted(checked) == sorted(filename)
os.chdir(join(REGR_DATA, "package"))
finalize_linter.check(["__init__"])
checked = list(finalize_linter.stats.by_module.keys())
assert checked == ["__init__"]
@pytest.mark.timeout(30)
@pytest.mark.parametrize("file_names", ([join(REGR_DATA, "hang", "pkg4972.string")],))
def test_hang(finalize_linter: PyLinter, file_names: list[str]) -> None:
finalize_linter.check(file_names)
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