# Copyright 2009-2022 Joshua Bronson. All rights reserved.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

Test script for bidict.namedbidict:

    >>> from bidict import namedbidict
    >>> ElBySym = namedbidict('ElBySym', 'sym', 'el')
    >>> el_by_sym = ElBySym(H='hydrogen')
    >>> el_by_sym['H']
    'hydrogen'
    >>> el_by_sym.inverse['hydrogen']
    'H'
    >>> el_by_sym.keyname
    'sym'
    >>> el_by_sym.valname
    'el'
    >>> el_by_sym.el_for['H']
    'hydrogen'
    >>> el_by_sym.sym_for['hydrogen']
    'H'
    >>> el_by_sym.inverse.el_for['H']
    'hydrogen'
    >>> el_by_sym.inverse.sym_for['hydrogen']
    'H'
    >>> el_by_sym['He'] = 'helium'
    >>> el_by_sym
    ElBySym({'H': 'hydrogen', 'He': 'helium'})
    >>> el_by_sym.inverse
    ElBySymInv({'hydrogen': 'H', 'helium': 'He'})