# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/master/COPYING

import contextlib
import io
import os
import sys

import pytest
import six

import pylint.lint


def is_module(filename):
    return filename.endswith(".py")


def is_package(filename, location):
    return os.path.exists(os.path.join(location, filename, '__init__.py'))


@contextlib.contextmanager
def _patch_stdout(out):
    sys.stdout = out
    try:
        yield
    finally:
        sys.stdout = sys.__stdout__


LIB_DIRS = [
    os.path.dirname(os.__file__),
]
MODULES_TO_CHECK = [(location, module) for location in LIB_DIRS for module in os.listdir(location)
                    if is_module(module) or is_package(module, location)]
MODULES_NAMES = [m[1] for m in MODULES_TO_CHECK]


@pytest.mark.acceptance
@pytest.mark.parametrize(("test_module_location", "test_module_name"),
                         MODULES_TO_CHECK, ids=MODULES_NAMES)
def test_libmodule(test_module_location, test_module_name):
    os.chdir(test_module_location)
    with _patch_stdout(six.StringIO()):
        try:
            pylint.lint.Run([test_module_name, '--enable=all'])
        except SystemExit as ex:
            assert ex.code != 32
            return

        assert False, "shouldn't get there"