File: six_simple_test.py

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from __future__ import annotations

import pytest

from pyupgrade._data import Settings
from pyupgrade._main import _fix_plugins


@pytest.mark.parametrize(
    's',
    (
        # renaming things for weird reasons
        'from six import MAXSIZE as text_type\n'
        'isinstance(s, text_type)\n',
        # parenthesized part of attribute
        '(\n'
        '    six\n'
        ').text_type(u)\n',
        pytest.param(
            'from .six import text_type\n'
            'isinstance("foo", text_type)\n',
            id='relative import might not be six',
        ),
        pytest.param(
            'foo.range(3)',
            id='Range, but not from six.moves',
        ),
    ),
)
def test_six_simple_noop(s):
    assert _fix_plugins(s, settings=Settings()) == s


@pytest.mark.parametrize(
    ('s', 'expected'),
    (
        (
            'isinstance(s, six.text_type)',
            'isinstance(s, str)',
        ),
        pytest.param(
            'isinstance(s, six   .    string_types)',
            'isinstance(s, str)',
            id='weird spacing on six.attr',
        ),
        (
            'isinstance(s, six.string_types)',
            'isinstance(s, str)',
        ),
        (
            'issubclass(tp, six.string_types)',
            'issubclass(tp, str)',
        ),
        (
            'STRING_TYPES = six.string_types',
            'STRING_TYPES = (str,)',
        ),
        (
            'from six import string_types\n'
            'isinstance(s, string_types)\n',

            'from six import string_types\n'
            'isinstance(s, str)\n',
        ),
        (
            'from six import string_types\n'
            'STRING_TYPES = string_types\n',

            'from six import string_types\n'
            'STRING_TYPES = (str,)\n',
        ),
        pytest.param(
            'six.moves.range(3)\n',

            'range(3)\n',

            id='six.moves.range',
        ),
        pytest.param(
            'six.moves.xrange(3)\n',

            'range(3)\n',

            id='six.moves.xrange',
        ),
        pytest.param(
            'from six.moves import xrange\n'
            'xrange(3)\n',

            'from six.moves import xrange\n'
            'range(3)\n',

            id='six.moves.xrange, from import',
        ),
    ),
)
def test_fix_six_simple(s, expected):
    ret = _fix_plugins(s, settings=Settings())
    assert ret == expected