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#
# diffoscope: in-depth comparison of files, archives, and directories
#
# Copyright © 2017, 2019-2020 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 re
import pytest
import subprocess
from diffoscope.comparators.pgp import PgpFile, PgpSignature
from ..utils.data import load_fixture, assert_diff, get_data
from ..utils.tools import skip_unless_tools_exist
from ..utils.versions import Version
from ..utils.nonexisting import assert_non_existing
pgp1 = load_fixture("test1.pgp")
pgp2 = load_fixture("test2.pgp")
signed1 = load_fixture("test1_signed.pgp")
signed2 = load_fixture("test2_signed.pgp")
signature1 = load_fixture("test1.asc")
signature2 = load_fixture("test2.asc")
def test_identification(pgp1):
assert isinstance(pgp1, PgpFile)
def test_no_differences(pgp1):
difference = pgp1.compare(pgp1)
assert difference is None
def pgpdump_version():
out = subprocess.check_output(
("pgpdump", "-v"), stderr=subprocess.STDOUT
).decode("utf-8")
# pgpdump version 0.33, Copyright (C) 1998-2017 Kazu Yamamoto
m = re.search(r"^pgpdump version (?P<version>\d+\.\d+)", out)
if m is None:
raise ValueError(f"Error parsing `pgpdump -v` output: {out}")
return Version(m.group("version"))
@pytest.fixture
def differences(pgp1, pgp2):
return pgp1.compare(pgp2).details
@skip_unless_tools_exist("pgpdump")
def test_diff(differences):
assert_diff(differences[0], "pgp_expected_diff")
@skip_unless_tools_exist("pgpdump")
def test_compare_non_existing(monkeypatch, pgp1):
assert_non_existing(monkeypatch, pgp1, has_null_source=False)
def test_pgp_signature_identification(signature1, signature2):
assert isinstance(signature1, PgpSignature)
assert isinstance(signature2, PgpSignature)
@skip_unless_tools_exist("pgpdump")
def test_pgp_signature(signature1, signature2):
difference = signature1.compare(signature2)
assert_diff(difference, "pgp_signature_expected_diff")
assert difference.details[0].source1 == "pgpdump"
assert len(difference.details) == 1
@skip_unless_tools_exist("pgpdump")
def test_signed_identification(signed1):
assert isinstance(signed1, PgpFile)
@pytest.fixture
def signed_differences(signed1, signed2):
return signed1.compare(signed2).details
@skip_unless_tools_exist("pgpdump")
def test_signed_diff(signed_differences):
expected_diff = get_data("pgp_signed_expected_diff")
if pgpdump_version() > Version(0.33):
expected_diff = expected_diff.replace(
"Format - binary", "Packet data format - binary"
)
expected_diff = expected_diff.replace(
"File modified time", "Creation time"
)
assert signed_differences[0].unified_diff == expected_diff
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