def test_create_patch_foo_bad_patch_type(self):
fpatch = BytesIO()
with open('tests/files/foo/old', 'rb') as fold:
with open('tests/files/foo/new', 'rb') as fnew:
with self.assertRaises(detools.Error) as cm:
detools.create_patch(fold, fnew, fpatch, patch_type='bad')
self.assertEqual(str(cm.exception), "Bad patch type 'bad'.")
def test_create_patch_foo_bad_compression(self):
fpatch = BytesIO()
with open('tests/files/foo/old', 'rb') as fold:
with open('tests/files/foo/new', 'rb') as fnew:
with self.assertRaises(detools.Error) as cm:
detools.create_patch(fold, fnew, fpatch, compression='bad')
self.assertEqual(
str(cm.exception),
"Expected compression bz2, crle, heatshrink, lz4, lzma, "
"none or zstd, but got bad.")
def assert_create_patch(self, from_filename, to_filename, patch_filename,
**kwargs):
fpatch = BytesIO()
with open(from_filename, 'rb') as fold:
with open(to_filename, 'rb') as fnew:
detools.create_patch(fold, fnew, fpatch, **kwargs)
actual = fpatch.getvalue()
# open(patch_filename, 'wb').write(actual)
with open(patch_filename, 'rb') as fpatch:
expected = fpatch.read()
self.assertEqual(actual, expected)
def test_create_patch_in_place_bad_memory_and_segment_size_ratio(self):
fpatch = BytesIO()
with open('tests/files/foo/old', 'rb') as fold:
with open('tests/files/foo/new', 'rb') as fnew:
with self.assertRaises(detools.Error) as cm:
detools.create_patch(fold,
fnew,
fpatch,
patch_type='in-place',
memory_size=3000,
segment_size=501)
self.assertEqual(
str(cm.exception),
"Memory size 3000 is not a multiple of segment size 501.")