1
from bzrlib.selftest import TestBase
2
from bzrlib.diff import internal_diff
3
from cStringIO import StringIO
4
def udiff_lines(old, new):
6
internal_diff('old', old, 'new', new, output)
8
return output.readlines()
10
def check_patch(lines):
11
assert len(lines) > 1, \
12
"Not enough lines for a file header for patch:\n%s" % "".join(lines)
13
assert lines[0].startswith ('---'), \
14
'No orig line for patch:\n%s' % "".join(lines)
15
assert lines[1].startswith ('+++'), \
16
'No mod line for patch:\n%s' % "".join(lines)
17
assert len(lines) > 2, \
18
"No hunks for patch:\n%s" % "".join(lines)
19
assert lines[2].startswith('@@'),\
20
"No hunk header for patch:\n%s" % "".join(lines)
21
assert '@@' in lines[2][2:], \
22
"Unterminated hunk header for patch:\n%s" % "".join(lines)
24
class AddNL(TestBase):
26
diff generates a valid diff for patches that add a newline
29
lines = udiff_lines(['boo'], ['boo\n'])
31
assert lines[4] == '\\ No newline at end of file\n', \
32
"expected no-nl, got %r" % lines[4]
35
class AddNL2(TestBase):
37
diff generates a valid diff for patches that change last line and add a
41
lines = udiff_lines(['boo'], ['goo\n'])
43
assert lines[4] == '\\ No newline at end of file\n', \
44
"expected no-nl, got %r" % lines[4]
46
class RemoveNL(TestBase):
48
diff generates a valid diff for patches that change last line and add a
52
lines = udiff_lines(['boo\n'], ['boo'])
54
assert lines[5] == '\\ No newline at end of file\n', \
55
"expected no-nl, got %r" % lines[5]
added
removed
bzrlib/selftest/testdiff.py
