# -*- coding: utf-8 -*-
#
# Copyright © 2012 - 2018 Michal Čihař <michal@cihar.com>
#
# This file is part of Weblate <https://weblate.org/>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
#

from __future__ import unicode_literals

from unittest import TestCase

from weblate.utils.hash import (
    calculate_hash, hash_to_checksum, checksum_to_hash,
)


class HashTest(TestCase):
    def test_hash(self):
        """Ensure hash is not changing"""
        text = 'Message'
        text_hash = calculate_hash(None, text)
        self.assertEqual(
            text_hash,
            calculate_hash(None, text)
        )

    def test_hash_context(self):
        """Ensure hash works with context"""
        text = 'Message'
        context = 'Context'
        text_hash = calculate_hash(context, text)
        self.assertEqual(
            text_hash,
            calculate_hash(context, text)
        )

    def test_hash_unicode(self):
        """Ensure hash works for unicode"""
        text = 'Příšerně žluťoučký kůň úpěl ďábelské ódy'
        text_hash = calculate_hash(None, text)
        self.assertEqual(
            text_hash,
            calculate_hash(None, text)
        )

    def test_checksum(self):
        """Hash to checksum conversion"""
        text_hash = calculate_hash(None, 'Message')
        checksum = hash_to_checksum(text_hash)
        self.assertEqual(
            text_hash,
            checksum_to_hash(checksum)
        )
