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59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9<!DOCTYPE html>
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# testing/util.py
# Copyright (C) 2005-2019 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
from __future__ import annotations

import types
from typing import Union

from sqlalchemy.util import inspect_getfullargspec

from ..util import sqla_2


def flag_combinations(*combinations):
    """A facade around @testing.combinations() oriented towards boolean
    keyword-based arguments.

    Basically generates a nice looking identifier based on the keywords
    and also sets up the argument names.

    E.g.::

        @testing.flag_combinations(
            dict(lazy=False, passive=False),
            dict(lazy=True, passive=False),
            dict(lazy=False, passive=True),
            dict(lazy=False, passive=True, raiseload=True),
        )


    would result in::

        @testing.combinations(
            ('', False, False, False),
            ('lazy', True, False, False),
            ('lazy_passive', True, True, False),
            ('lazy_passive', True, True, True),
            id_='iaaa',
            argnames='lazy,passive,raiseload'
        )

    """
    from sqlalchemy.testing import config

    keys = set()

    for d in combinations:
        keys.update(d)

    keys = sorted(keys)

    return config.combinations(
        *[
            ("_".join(k for k in keys if d.get(k, False)),)
            + tuple(d.get(k, False) for k in keys)
            for d in combinations
        ],
        id_="i" + ("a" * len(keys)),
