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#
# diffoscope: in-depth comparison of files, archives, and directories
#
# Copyright © 2015 Jérémy Bobbio <lunar@debian.org>
# Copyright © 2015-2020 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 codecs
from diffoscope.comparators.binary import FilesystemFile
from diffoscope.comparators.utils.specialize import specialize
from ..utils.data import data, load_fixture, get_data
from ..utils.nonexisting import assert_non_existing
ascii1 = load_fixture("text_ascii1")
ascii2 = load_fixture("text_ascii2")
def test_no_differences(ascii1):
difference = ascii1.compare(ascii1)
assert difference is None
def test_difference_in_ascii(ascii1, ascii2):
difference = ascii1.compare(ascii2)
assert difference is not None
expected_diff = get_data("text_ascii_expected_diff")
assert difference.unified_diff == expected_diff
assert not difference.comments
assert len(difference.details) == 0
unicode1 = load_fixture("text_unicode1")
unicode2 = load_fixture("text_unicode2")
def test_difference_in_unicode(unicode1, unicode2):
difference = unicode1.compare(unicode2)
expected_diff = codecs.open(
data("text_unicode_expected_diff"), encoding="utf-8"
).read()
assert difference.unified_diff == expected_diff
iso8859 = load_fixture("text_iso8859")
def test_difference_between_iso88591_and_unicode(iso8859, unicode1):
difference = iso8859.compare(unicode1)
expected_diff = codecs.open(
data("text_iso8859_expected_diff"), encoding="utf-8"
).read()
assert difference.unified_diff == expected_diff
def test_difference_between_iso88591_and_unicode_only(iso8859, tmpdir):
utf8_path = str(tmpdir.join("utf8"))
with open(utf8_path, "wb") as f:
f.write(
codecs.open(data("text_iso8859"), encoding="iso8859-1")
.read()
.encode("utf-8")
)
utf8 = specialize(FilesystemFile(utf8_path))
difference = iso8859.compare(utf8)
assert difference.unified_diff is None
assert difference.details[0].source1 == "encoding"
def test_compare_non_existing(monkeypatch, ascii1):
assert_non_existing(
monkeypatch, ascii1, has_null_source=False, has_details=False
)
text_order1 = load_fixture("text_order1")
text_order2 = load_fixture("text_order2")
def test_ordering_differences(text_order1, text_order2):
difference = text_order1.compare(text_order2)
assert difference.comments == ["Ordering differences only"]
assert difference.unified_diff == get_data("text_order_expected_diff")
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