"""Tests for flake8's utils module."""
import pytest

from flake8 import utils


@pytest.mark.parametrize("value,expected", [
    ("E123,\n\tW234,\n    E206", ["E123", "W234", "E206"]),
    ("E123,W234,E206", ["E123", "W234", "E206"]),
    (["E123", "W234", "E206"], ["E123", "W234", "E206"]),
    (["E123", "\n\tW234", "\n    E206"], ["E123", "W234", "E206"]),
])
def test_parse_comma_separated_list(value, expected):
    assert utils.parse_comma_separated_list(value) == expected