# -*- coding: utf-8 -*-
#
# diffoscope: in-depth comparison of files, archives, and directories
#
# Copyright © 2015 Jérémy Bobbio <lunar@debian.org>
#
# diffoscope 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.
#
# diffoscope 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 diffoscope.  If not, see <https://www.gnu.org/licenses/>.

import codecs
import pytest

from diffoscope.config import Config
from diffoscope.comparators.missing_file import MissingFile
from diffoscope.comparators.gettext import MoFile

from utils.data import data, load_fixture, get_data
from utils.tools import skip_unless_tools_exist


mo1 = load_fixture('test1.mo')
mo2 = load_fixture('test2.mo')

def test_identification(mo1):
    assert isinstance(mo1, MoFile)

def test_no_differences(mo1):
    difference = mo1.compare(mo1)
    assert difference is None

@pytest.fixture
def differences(mo1, mo2):
    return mo1.compare(mo2).details

@skip_unless_tools_exist('msgunfmt')
def test_diff(differences):
    expected_diff = get_data('mo_expected_diff')
    assert differences[0].unified_diff == expected_diff

mo_no_charset = load_fixture('test_no_charset.mo')
mo_iso8859_1 = load_fixture('test_iso8859-1.mo')

@skip_unless_tools_exist('msgunfmt')
def test_charsets(mo_no_charset, mo_iso8859_1):
    difference = mo_no_charset.compare(mo_iso8859_1)
    expected_diff = codecs.open(data('mo_charsets_expected_diff'), encoding='utf-8').read()
    assert difference.details[0].unified_diff == expected_diff

@skip_unless_tools_exist('msgunfmt')
def test_compare_non_existing(monkeypatch, mo1):
    monkeypatch.setattr(Config(), 'new_file', True)
    difference = mo1.compare(MissingFile('/nonexisting', mo1))
    assert difference.source2 == '/nonexisting'
    assert len(difference.details) > 0