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# Copyright (C) 2006 Canonical Ltd
# Copyright (C) 2008 Aaron Bentley <aaron@aaronbentley.com>
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import os
from breezy.iterablefile import IterableFile
from breezy.errors import BinaryFile
from breezy.patch import diff3, PatchInvokeError, run_patch, iter_patched_from_hunks
from breezy.patches import parse_patch
from breezy.tests import TestCaseInTempDir, TestCase
class TestPatch(TestCaseInTempDir):
def test_diff3_binaries(self):
with open('this', 'wb') as f:
f.write(b'a')
with open('other', 'wb') as f:
f.write(b'a')
with open('base', 'wb') as f:
f.write(b'\x00')
self.assertRaises(BinaryFile, diff3, 'unused', 'this', 'other', 'base')
class TestPatch(TestCaseInTempDir):
def test_missing_patch(self):
self.assertRaises(PatchInvokeError, run_patch, '.', [],
_patch_cmd='/unlikely/to/exist')
class PatchesTester(TestCase):
def datafile(self, filename):
data_path = os.path.join(os.path.dirname(__file__),
"test_patches_data", filename)
return open(data_path, "rb")
def data_lines(self, filename):
with self.datafile(filename) as datafile:
return datafile.readlines()
def test_iter_patched_from_hunks(self):
"""Test a few patch files, and make sure they work."""
files = [
('diff-2', 'orig-2', 'mod-2'),
('diff-3', 'orig-3', 'mod-3'),
('diff-4', 'orig-4', 'mod-4'),
('diff-5', 'orig-5', 'mod-5'),
('diff-6', 'orig-6', 'mod-6'),
('diff-7', 'orig-7', 'mod-7'),
]
for diff, orig, mod in files:
parsed = parse_patch(self.datafile(diff))
orig_lines = list(self.datafile(orig))
mod_lines = list(self.datafile(mod))
iter_patched = iter_patched_from_hunks(orig_lines, parsed.hunks)
patched_file = IterableFile(iter_patched)
count = 0
for patch_line in patched_file:
self.assertEqual(patch_line, mod_lines[count], 'for file %s' % diff)
count += 1
self.assertEqual(count, len(mod_lines))
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