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#
# diffoscope: in-depth comparison of files, archives, and directories
#
# Copyright © 2016 Jérémy Bobbio <lunar@debian.org>
# Copyright © 2016-2020, 2023 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 pytest
import signal
import subprocess
from diffoscope.config import Config
from diffoscope.comparators.icc import IccFile
from diffoscope.comparators.missing_file import MissingFile
from ..utils.data import load_fixture, get_data, data
from ..utils.tools import skip_unless_tools_exist, skip_unless_tool_is_at_least
icc1 = load_fixture("test1.icc")
icc2 = load_fixture("test2.icc")
def cd_iccdump_version():
"""
The `cd-iccdump` command has no --version command and, whilst the `colord`
binary does, it relies on the daemon running to return any output.
Therefore we hackily compare the output (via the line length) of colord
1.4.3:
" Profile ID = 0477fa4bb5ae5ae9a778f5cd72eb45a4"
... versus, for example, colord 1.3.3:
" Profile ID = 0x0477fa4b"
We don't massage the output (say, in an `Iccdump.filter` method) as it
would remove the accuracy and, unfortunately, colord 1.4.3 also removes a
somewhat-arbitrary newline too.
"""
try:
val = subprocess.check_output(
("cd-iccdump", data("test1.icc"))
).decode("utf-8")
except subprocess.CalledProcessError as exc:
if exc.returncode == -signal.SIGSEGV:
pytest.skip(
"Skipping all ICC tests as cd-iccdump killed with signal",
allow_module_level=True,
)
for x in val.splitlines():
if x.startswith(" Profile ID") and len(x) == 47:
return "1.4.3"
return "1.3.3"
def test_identification(icc1):
assert isinstance(icc1, IccFile)
def test_no_differences(icc1):
difference = icc1.compare(icc1)
assert difference is None
@pytest.fixture
def differences(icc1, icc2):
return icc1.compare(icc2).details
@skip_unless_tool_is_at_least("cd-iccdump", cd_iccdump_version, "1.4.3")
def test_diff(differences):
if "ne_SU" in differences[0].unified_diff:
pytest.skip(
"Endian-specific differences detected; see "
"<https://bugs.debian.org/847595>"
)
expected_diff = get_data("icc_expected_diff")
assert differences[0].unified_diff == expected_diff
@skip_unless_tools_exist("cd-iccdump")
def test_compare_non_existing(monkeypatch, icc1):
monkeypatch.setattr(Config(), "new_file", True)
difference = icc1.compare(MissingFile("/nonexisting", icc1))
assert difference.source2 == "/nonexisting"
assert len(difference.details) > 0
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