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#
# diffoscope: in-depth comparison of files, archives, and directories
#
# Copyright © 2019 Jelle van der Waa <jelle@archlinux.org>
# Copyright © 2020 Chris Lamb <lamby@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 subprocess
import pytest
from diffoscope.comparators.zst import ZstFile
from diffoscope.comparators.binary import FilesystemFile
from diffoscope.comparators.utils.specialize import specialize
from ..utils.tools import skip_unless_tools_exist
def zst_fixture(prefix):
@pytest.fixture
def zstd(tmpdir):
input_ = str(tmpdir.join(prefix))
output = str(tmpdir.join("{}.zst".format(prefix)))
with open(input_, "w") as f:
f.write(prefix)
subprocess.check_call(("zstd", "--quiet", "--no-progress", input_))
return specialize(FilesystemFile(output))
return zstd
zst1 = zst_fixture("test1")
zst2 = zst_fixture("test2")
@skip_unless_tools_exist("zstd")
def test_identification(zst1):
assert isinstance(zst1, ZstFile)
@skip_unless_tools_exist("zstd")
def test_no_differences(zst1):
difference = zst1.compare(zst1)
assert difference is None
@pytest.fixture
def differences(zst1, zst2):
return zst1.compare(zst2).details
@skip_unless_tools_exist("zstd")
def test_content_source(differences):
assert differences[0].source1 == "test1"
assert differences[0].source2 == "test2"
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