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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 os
import pytest
import signal
import tempfile
from diffoscope.main import main
TEST_TAR1_PATH = os.path.join(os.path.dirname(__file__), 'data/test1.tar')
TEST_TAR2_PATH = os.path.join(os.path.dirname(__file__), 'data/test2.tar')
TEST_TARS = (TEST_TAR1_PATH, TEST_TAR2_PATH)
def run(capsys, *args):
with pytest.raises(SystemExit) as exc:
main(args)
out, err = capsys.readouterr()
return exc.value.code, out, err
def test_non_existing_files(capsys):
ret, _, err = run(capsys, '/nonexisting1', '/nonexisting2')
assert ret == 2
assert '/nonexisting1: No such file or directory' in err
assert '/nonexisting2: No such file or directory' in err
def test_non_existing_left_with_new_file(capsys):
ret, out, _ = run(capsys, '--new-file', '/nonexisting1', __file__)
assert ret == 1
assert '--- /nonexisting1' in out
assert ('+++ %s' % __file__) in out
def test_non_existing_right_with_new_file(capsys):
ret, out, _ = run(capsys, '--new-file', __file__, '/nonexisting2')
assert ret == 1
assert ('--- %s' % __file__) in out
assert '+++ /nonexisting2' in out
def test_non_existing_files_with_new_file(capsys):
ret, out, _ = run(capsys, '--new-file', '/nonexisting1', '/nonexisting2')
assert ret == 1
assert '--- /nonexisting1' in out
assert '+++ /nonexisting2' in out
assert 'Trying to compare two non-existing files.' in out
def test_remove_temp_files_on_sigterm(capsys, tmpdir, monkeypatch):
pid = os.fork()
if pid == 0:
def suicide(*args):
os.kill(os.getpid(), signal.SIGTERM)
monkeypatch.setattr('diffoscope.comparators.text.TextFile.compare', suicide)
tempfile.tempdir = str(tmpdir)
ret, _, _ = run(capsys, *TEST_TARS)
os._exit(ret)
else:
_, ret = os.waitpid(pid, 0)
assert (ret >> 8) == 2 # having received SIGTERM is trouble
assert os.listdir(str(tmpdir)) == []
def test_ctrl_c_handling(tmpdir, monkeypatch, capsys):
monkeypatch.setattr('tempfile.tempdir', str(tmpdir))
def interrupt(*args):
raise KeyboardInterrupt
monkeypatch.setattr(
'diffoscope.comparators.text.TextFile.compare',
interrupt,
)
ret, _, err = run(capsys, *TEST_TARS)
assert '' in err
assert ret == 2
assert os.listdir(str(tmpdir)) == []
def test_no_differences(capsys):
ret, out, err = run(capsys, TEST_TAR1_PATH, TEST_TAR1_PATH)
assert ret == 0
assert err == ''
assert out == ''
def test_no_differences_directories(capsys, tmpdir):
def create_dir(x):
path = str(tmpdir.mkdir(x))
os.utime(path, (0, 0)) # Ensure consistent mtime
return path
ret, out, err = run(capsys, create_dir('a'), create_dir('b'))
assert ret == 0
assert err == ''
assert out == ''
def test_list_tools(capsys):
ret, out, err = run(capsys, '--list-tools')
assert ret == 0
assert err == ''
assert 'External-Tools-Required: ' in out
assert 'xxd,' in out
def test_profiling(capsys):
ret, out, err = run(capsys, TEST_TAR1_PATH, TEST_TAR1_PATH, '--profile=-')
assert ret == 0
assert "Profiling output for" in out
assert err == ''
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