num2words/tests/test_de.py

# -*- coding: utf-8 -*-
# Copyright (c) 2003, Taro Ogawa.  All Rights Reserved.
# Copyright (c) 2013, Savoir-faire Linux inc.  All Rights Reserved.

# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301 USA

from __future__ import unicode_literals

from unittest import TestCase

from num2words import num2words


class Num2WordsDETest(TestCase):

    def test_ordinal_less_than_twenty(self):
        self.assertEqual(num2words(0, ordinal=True, lang='de'), "nullte")
        self.assertEqual(num2words(1, ordinal=True, lang='de'), "erste")
        self.assertEqual(num2words(7, ordinal=True, lang='de'), "siebte")
        self.assertEqual(num2words(8, ordinal=True, lang='de'), "achte")
        self.assertEqual(num2words(12, ordinal=True, lang='de'), "zwölfte")
        self.assertEqual(num2words(17, ordinal=True, lang='de'), "siebzehnte")

    def test_ordinal_more_than_twenty(self):
        self.assertEqual(
            num2words(81, ordinal=True, lang='de'), "einundachtzigste"
        )

    def test_ordinal_at_crucial_number(self):
        self.assertEqual(
            num2words(100, ordinal=True, lang='de'), "hundertste"
        )
        self.assertEqual(
            num2words(1000, ordinal=True, lang='de'), "tausendste"
        )
        self.assertEqual(
            num2words(4000, ordinal=True, lang='de'), "viertausendste"
        )
        self.assertEqual(
            num2words(1000000, ordinal=True, lang='de'), "millionste"
        )
        self.assertEqual(
            num2words(2000000, ordinal=True, lang='de'), "zweimillionste"
        )
        self.assertEqual(
            num2words(1000000000, ordinal=True, lang='de'), "milliardste"
        )
        self.assertEqual(
            num2words(5000000000, ordinal=True, lang='de'),
            "fünfmilliardste"
        )

    def test_cardinal_at_some_numbers(self):
        self.assertEqual(num2words(100, lang='de'), "einhundert")
        self.assertEqual(num2words(1000, lang='de'), "eintausend")
        self.assertEqual(num2words(5000, lang='de'), "fünftausend")
        self.assertEqual(num2words(10000, lang='de'), "zehntausend")
        self.assertEqual(num2words(1000000, lang='de'), "eine Million")
        self.assertEqual(num2words(2000000, lang='de'), "zwei Millionen")
        self.assertEqual(num2words(4000000000, lang='de'), "vier Milliarden")
        self.assertEqual(num2words(1000000000, lang='de'), "eine Milliarde")

    def test_cardinal_for_decimal_number(self):
        self.assertEqual(
            num2words(3.486, lang='de'), "drei Komma vier acht sechs"
        )

    def test_giant_cardinal_for_merge(self):
        self.assertEqual(
            num2words(4500072900000111, lang='de'),
            "vier Billiarden fünfhundert Billionen " +
            "zweiundsiebzig Milliarden neunhundert Millionen einhundertelf"
        )

    def test_ordinal_num(self):
        self.assertEqual(num2words(7, to="ordinal_num", lang='de'), "7.")
        self.assertEqual(num2words(81, to="ordinal_num", lang='de'), "81.")

    def test_ordinal_for_negative_numbers(self):
        self.assertRaises(TypeError, num2words, -12, ordinal=True, lang='de')

    def test_ordinal_for_floating_numbers(self):
        self.assertRaises(TypeError, num2words, 2.453, ordinal=True, lang='de')

    def test_currency(self):
        self.assertEqual(num2words(1, lang='de', to='currency'),
                         'ein Euro')
        self.assertEqual(num2words(12, lang='de', to='currency'),
                         'zwölf Euro')
        self.assertEqual(num2words(12.00, lang='de', to='currency'),
                         'zwölf Euro')
        self.assertEqual(num2words(100.0, lang='de', to='currency'),
                         "einhundert Euro")
        self.assertEqual(num2words(190, lang='de', to='currency'),
                         "einhundertneunzig Euro")
        self.assertEqual(num2words(1.90, lang='de', to='currency'),
                         "ein Euro und neunzig Cent")
        self.assertEqual(num2words(3.4, lang='de', to='currency'),
                         "drei Euro und vierzig Cent")
        self.assertEqual(num2words(20.18, lang='de', to='currency'),
                         "zwanzig Euro und achtzehn Cent")
        self.assertEqual(num2words(3.04, lang='de', to='currency'),
                         "drei Euro und vier Cent")

    def test_old_currency(self):
        self.assertEqual(num2words(12.00, to='currency', lang='de', old=True),
                         'zwölf Mark')

    def test_year(self):
        self.assertEqual(num2words(2002, to='year', lang='de'),
                         'zweitausendzwei')

    def test_year_before_2000(self):
        self.assertEqual(num2words(1780, to='year', lang='de'),
                         'siebzehnhundertachtzig')