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# -*- 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 pytest
import diffoscope.comparators
from diffoscope.config import Config
from diffoscope.comparators.deb import DebFile, Md5sumsFile, DebDataTarFile
from diffoscope.comparators.binary import FilesystemFile
from diffoscope.comparators.missing_file import MissingFile
from diffoscope.comparators.utils.specialize import specialize
from utils.data import load_fixture, get_data
deb1 = load_fixture('test1.deb')
deb2 = load_fixture('test2.deb')
def test_identification(deb1):
assert isinstance(deb1, DebFile)
def test_no_differences(deb1):
difference = deb1.compare(deb1)
assert difference is None
@pytest.fixture
def differences(deb1, deb2):
return deb1.compare(deb2).details
def test_metadata(differences):
expected_diff = get_data('deb_metadata_expected_diff')
assert differences[0].unified_diff == expected_diff
def test_compressed_files(differences):
assert differences[1].source1 == 'control.tar.gz'
assert differences[2].source1 == 'data.tar.gz'
def test_identification_of_md5sums_outside_deb(tmpdir):
path = str(tmpdir.join('md5sums'))
open(path, 'w')
f = specialize(FilesystemFile(path))
assert type(f) is FilesystemFile
def test_identification_of_md5sums_in_deb(deb1, deb2, monkeypatch):
orig_func = Md5sumsFile.recognizes
@staticmethod
def probe(file):
ret = orig_func(file)
if ret:
test_identification_of_md5sums_in_deb.found = True
return ret
test_identification_of_md5sums_in_deb.found = False
monkeypatch.setattr(Md5sumsFile, 'recognizes', probe)
deb1.compare(deb2)
assert test_identification_of_md5sums_in_deb.found
def test_md5sums(differences):
assert differences[1].details[0].details[1].details[0].comment == 'Files in package differ'
def test_identical_files_in_md5sums(deb1, deb2):
for name in ['./usr/share/doc/test/README.Debian', './usr/share/doc/test/copyright']:
assert deb1.md5sums[name] == deb2.md5sums[name]
def test_identification_of_data_tar(deb1, deb2, monkeypatch):
orig_func = DebDataTarFile.recognizes
@staticmethod
def probe(file):
ret = orig_func(file)
if ret:
test_identification_of_data_tar.found = True
return ret
test_identification_of_data_tar.found = False
monkeypatch.setattr(DebDataTarFile, 'recognizes', probe)
deb1.compare(deb2)
assert test_identification_of_data_tar.found
def test_skip_comparison_of_known_identical_files(deb1, deb2, monkeypatch):
compared = set()
orig_func = diffoscope.comparators.utils.compare.compare_files
def probe(file1, file2, source=None):
compared.add(file1.name)
return orig_func(file1, file2, source=None)
monkeypatch.setattr(diffoscope.comparators.utils.compare, 'compare_files', probe)
deb1.compare(deb2)
assert './usr/share/doc/test/README.Debian' not in compared
def test_compare_non_existing(monkeypatch, deb1):
monkeypatch.setattr(Config(), 'new_file', True)
difference = deb1.compare(MissingFile('/nonexisting', deb1))
assert difference.source2 == '/nonexisting'
assert difference.details[-1].source2 == '/dev/null'
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