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"""Unit tests for flake8.options.manager.Option."""
from __future__ import annotations
import functools
from unittest import mock
import pytest
from flake8.options import manager
def test_to_argparse():
"""Test conversion to an argparse arguments."""
opt = manager.Option(
short_option_name="-t",
long_option_name="--test",
action="count",
parse_from_config=True,
normalize_paths=True,
)
assert opt.normalize_paths is True
assert opt.parse_from_config is True
args, kwargs = opt.to_argparse()
assert args == ["-t", "--test"]
assert kwargs == {"action": "count", "type": mock.ANY}
assert isinstance(kwargs["type"], functools.partial)
def test_to_argparse_creates_an_option_as_we_expect():
"""Show that we pass all keyword args to argparse."""
opt = manager.Option("-t", "--test", action="count")
args, kwargs = opt.to_argparse()
assert args == ["-t", "--test"]
assert kwargs == {"action": "count"}
def test_config_name_generation():
"""Show that we generate the config name deterministically."""
opt = manager.Option(
long_option_name="--some-very-long-option-name",
parse_from_config=True,
)
assert opt.config_name == "some_very_long_option_name"
def test_config_name_needs_long_option_name():
"""Show that we error out if the Option should be parsed from config."""
with pytest.raises(ValueError):
manager.Option("-s", parse_from_config=True)
def test_dest_is_not_overridden():
"""Show that we do not override custom destinations."""
opt = manager.Option("-s", "--short", dest="something_not_short")
assert opt.dest == "something_not_short"
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