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# -*- coding: utf-8 -*-
#
# Copyright (C) 2007-2011 Edgewall Software, 2013-2022 the Babel team
# All rights reserved.
#
# This software is licensed as described in the file LICENSE, which
# you should have received as part of this distribution. The terms
# are also available at http://babel.edgewall.org/wiki/License.
#
# This software consists of voluntary contributions made by many
# individuals. For the exact contribution history, see the revision
# history and logs, available at http://babel.edgewall.org/log/.

import os
import unittest
from io import BytesIO

from babel.messages import mofile, Catalog
from babel.support import Translations


class ReadMoTestCase(unittest.TestCase):

    def setUp(self):
        self.datadir = os.path.join(os.path.dirname(__file__), 'data')

    def test_basics(self):
        mo_path = os.path.join(self.datadir, 'project', 'i18n', 'de',
                               'LC_MESSAGES', 'messages.mo')
        with open(mo_path, 'rb') as mo_file:
            catalog = mofile.read_mo(mo_file)
            self.assertEqual(2, len(catalog))
            self.assertEqual('TestProject', catalog.project)
            self.assertEqual('0.1', catalog.version)
            self.assertEqual('Stange', catalog['bar'].string)
            self.assertEqual(['Fuhstange', 'Fuhstangen'],
                             catalog['foobar'].string)


class WriteMoTestCase(unittest.TestCase):

    def test_sorting(self):
        # Ensure the header is sorted to the first entry so that its charset
        # can be applied to all subsequent messages by GNUTranslations
        # (ensuring all messages are safely converted to unicode)
        catalog = Catalog(locale='en_US')
        catalog.add(u'', '''\
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n''')
        catalog.add(u'foo', 'Voh')
        catalog.add((u'There is', u'There are'), (u'Es gibt', u'Es gibt'))
        catalog.add(u'Fizz', '')
        catalog.add(('Fuzz', 'Fuzzes'), ('', ''))
        buf = BytesIO()
        mofile.write_mo(buf, catalog)
        buf.seek(0)
        translations = Translations(fp=buf)
        self.assertEqual(u'Voh', translations.ugettext('foo'))
        assert isinstance(translations.ugettext('foo'), str)
        self.assertEqual(u'Es gibt', translations.ungettext('There is', 'There are', 1))
        assert isinstance(translations.ungettext('There is', 'There are', 1), str)
        self.assertEqual(u'Fizz', translations.ugettext('Fizz'))
        assert isinstance(translations.ugettext('Fizz'), str)
        self.assertEqual(u'Fuzz', translations.ugettext('Fuzz'))
        assert isinstance(translations.ugettext('Fuzz'), str)
        self.assertEqual(u'Fuzzes', translations.ugettext('Fuzzes'))
        assert isinstance(translations.ugettext('Fuzzes'), str)

    def test_more_plural_forms(self):
        catalog2 = Catalog(locale='ru_RU')
        catalog2.add(('Fuzz', 'Fuzzes'), ('', '', ''))
        buf = BytesIO()
        mofile.write_mo(buf, catalog2)

    def test_empty_translation_with_fallback(self):
        catalog1 = Catalog(locale='fr_FR')
        catalog1.add(u'', '''\
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n''')
        catalog1.add(u'Fuzz', '')
        buf1 = BytesIO()
        mofile.write_mo(buf1, catalog1)
        buf1.seek(0)
        catalog2 = Catalog(locale='fr')
        catalog2.add(u'', '''\
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n''')
        catalog2.add(u'Fuzz', 'Flou')
        buf2 = BytesIO()
        mofile.write_mo(buf2, catalog2)
        buf2.seek(0)

        translations = Translations(fp=buf1)
        translations.add_fallback(Translations(fp=buf2))

        self.assertEqual(u'Flou', translations.ugettext('Fuzz'))