1
# Copyright (C) 2005, 2006 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1
from bzrlib.selftest import TestCase
2
from bzrlib.diff import internal_diff
19
3
from cStringIO import StringIO
23
from tempfile import TemporaryFile
25
from bzrlib import tests
26
from bzrlib.diff import (
35
get_trees_and_branches_to_diff,
37
from bzrlib.errors import BinaryFile, NoDiff, ExecutableMissing
38
import bzrlib.osutils as osutils
39
import bzrlib.revision as _mod_revision
40
import bzrlib.transform as transform
41
import bzrlib.patiencediff
42
import bzrlib._patiencediff_py
43
from bzrlib.tests import (Feature, TestCase, TestCaseWithTransport,
44
TestCaseInTempDir, TestSkipped)
45
from bzrlib.revisiontree import RevisionTree
46
from bzrlib.revisionspec import RevisionSpec
49
class _AttribFeature(Feature):
52
if (sys.platform not in ('cygwin', 'win32')):
55
proc = subprocess.Popen(['attrib', '.'], stdout=subprocess.PIPE)
58
return (0 == proc.wait())
60
def feature_name(self):
61
return 'attrib Windows command-line tool'
63
AttribFeature = _AttribFeature()
66
compiled_patiencediff_feature = tests.ModuleAvailableFeature(
67
'bzrlib._patiencediff_c')
70
def udiff_lines(old, new, allow_binary=False):
4
def udiff_lines(old, new):
72
internal_diff('old', old, 'new', new, output, allow_binary)
6
internal_diff('old', old, 'new', new, output)
74
8
return output.readlines()
77
def external_udiff_lines(old, new, use_stringio=False):
79
# StringIO has no fileno, so it tests a different codepath
82
output = TemporaryFile()
84
external_diff('old', old, 'new', new, output, diff_opts=['-u'])
86
raise TestSkipped('external "diff" not present to test')
88
lines = 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)
93
24
class TestDiff(TestCase):
95
25
def test_add_nl(self):
96
26
"""diff generates a valid diff for patches that add a newline"""
97
27
lines = udiff_lines(['boo'], ['boo\n'])
98
self.check_patch(lines)
99
self.assertEquals(lines[4], '\\ No newline at end of file\n')
100
## "expected no-nl, got %r" % lines[4]
29
assert lines[4] == '\\ No newline at end of file\n', \
30
"expected no-nl, got %r" % lines[4]
102
32
def test_add_nl_2(self):
103
33
"""diff generates a valid diff for patches that change last line and
106
36
lines = udiff_lines(['boo'], ['goo\n'])
107
self.check_patch(lines)
108
self.assertEquals(lines[4], '\\ No newline at end of file\n')
109
## "expected no-nl, got %r" % lines[4]
38
assert lines[4] == '\\ No newline at end of file\n', \
39
"expected no-nl, got %r" % lines[4]
111
41
def test_remove_nl(self):
112
42
"""diff generates a valid diff for patches that change last line and
115
45
lines = udiff_lines(['boo\n'], ['boo'])
116
self.check_patch(lines)
117
self.assertEquals(lines[5], '\\ No newline at end of file\n')
118
## "expected no-nl, got %r" % lines[5]
120
def check_patch(self, lines):
121
self.assert_(len(lines) > 1)
122
## "Not enough lines for a file header for patch:\n%s" % "".join(lines)
123
self.assert_(lines[0].startswith ('---'))
124
## 'No orig line for patch:\n%s' % "".join(lines)
125
self.assert_(lines[1].startswith ('+++'))
126
## 'No mod line for patch:\n%s' % "".join(lines)
127
self.assert_(len(lines) > 2)
128
## "No hunks for patch:\n%s" % "".join(lines)
129
self.assert_(lines[2].startswith('@@'))
130
## "No hunk header for patch:\n%s" % "".join(lines)
131
self.assert_('@@' in lines[2][2:])
132
## "Unterminated hunk header for patch:\n%s" % "".join(lines)
134
def test_binary_lines(self):
135
self.assertRaises(BinaryFile, udiff_lines, [1023 * 'a' + '\x00'], [])
136
self.assertRaises(BinaryFile, udiff_lines, [], [1023 * 'a' + '\x00'])
137
udiff_lines([1023 * 'a' + '\x00'], [], allow_binary=True)
138
udiff_lines([], [1023 * 'a' + '\x00'], allow_binary=True)
140
def test_external_diff(self):
141
lines = external_udiff_lines(['boo\n'], ['goo\n'])
142
self.check_patch(lines)
143
self.assertEqual('\n', lines[-1])
145
def test_external_diff_no_fileno(self):
146
# Make sure that we can handle not having a fileno, even
147
# if the diff is large
148
lines = external_udiff_lines(['boo\n']*10000,
151
self.check_patch(lines)
153
def test_external_diff_binary_lang_c(self):
155
for lang in ('LANG', 'LC_ALL', 'LANGUAGE'):
156
old_env[lang] = osutils.set_or_unset_env(lang, 'C')
158
lines = external_udiff_lines(['\x00foobar\n'], ['foo\x00bar\n'])
159
# Older versions of diffutils say "Binary files", newer
160
# versions just say "Files".
161
self.assertContainsRe(lines[0],
162
'(Binary f|F)iles old and new differ\n')
163
self.assertEquals(lines[1:], ['\n'])
165
for lang, old_val in old_env.iteritems():
166
osutils.set_or_unset_env(lang, old_val)
168
def test_no_external_diff(self):
169
"""Check that NoDiff is raised when diff is not available"""
170
# Use os.environ['PATH'] to make sure no 'diff' command is available
171
orig_path = os.environ['PATH']
173
os.environ['PATH'] = ''
174
self.assertRaises(NoDiff, external_diff,
175
'old', ['boo\n'], 'new', ['goo\n'],
176
StringIO(), diff_opts=['-u'])
178
os.environ['PATH'] = orig_path
180
def test_internal_diff_default(self):
181
# Default internal diff encoding is utf8
183
internal_diff(u'old_\xb5', ['old_text\n'],
184
u'new_\xe5', ['new_text\n'], output)
185
lines = output.getvalue().splitlines(True)
186
self.check_patch(lines)
187
self.assertEquals(['--- old_\xc2\xb5\n',
188
'+++ new_\xc3\xa5\n',
196
def test_internal_diff_utf8(self):
198
internal_diff(u'old_\xb5', ['old_text\n'],
199
u'new_\xe5', ['new_text\n'], output,
200
path_encoding='utf8')
201
lines = output.getvalue().splitlines(True)
202
self.check_patch(lines)
203
self.assertEquals(['--- old_\xc2\xb5\n',
204
'+++ new_\xc3\xa5\n',
212
def test_internal_diff_iso_8859_1(self):
214
internal_diff(u'old_\xb5', ['old_text\n'],
215
u'new_\xe5', ['new_text\n'], output,
216
path_encoding='iso-8859-1')
217
lines = output.getvalue().splitlines(True)
218
self.check_patch(lines)
219
self.assertEquals(['--- old_\xb5\n',
228
def test_internal_diff_no_content(self):
230
internal_diff(u'old', [], u'new', [], output)
231
self.assertEqual('', output.getvalue())
233
def test_internal_diff_no_changes(self):
235
internal_diff(u'old', ['text\n', 'contents\n'],
236
u'new', ['text\n', 'contents\n'],
238
self.assertEqual('', output.getvalue())
240
def test_internal_diff_returns_bytes(self):
242
output = StringIO.StringIO()
243
internal_diff(u'old_\xb5', ['old_text\n'],
244
u'new_\xe5', ['new_text\n'], output)
245
self.failUnless(isinstance(output.getvalue(), str),
246
'internal_diff should return bytestrings')
249
class TestDiffFiles(TestCaseInTempDir):
251
def test_external_diff_binary(self):
252
"""The output when using external diff should use diff's i18n error"""
253
# Make sure external_diff doesn't fail in the current LANG
254
lines = external_udiff_lines(['\x00foobar\n'], ['foo\x00bar\n'])
256
cmd = ['diff', '-u', '--binary', 'old', 'new']
257
open('old', 'wb').write('\x00foobar\n')
258
open('new', 'wb').write('foo\x00bar\n')
259
pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE,
260
stdin=subprocess.PIPE)
261
out, err = pipe.communicate()
262
# Diff returns '2' on Binary files.
263
self.assertEqual(2, pipe.returncode)
264
# We should output whatever diff tells us, plus a trailing newline
265
self.assertEqual(out.splitlines(True) + ['\n'], lines)
268
class TestShowDiffTreesHelper(TestCaseWithTransport):
269
"""Has a helper for running show_diff_trees"""
271
def get_diff(self, tree1, tree2, specific_files=None, working_tree=None):
273
if working_tree is not None:
274
extra_trees = (working_tree,)
277
show_diff_trees(tree1, tree2, output, specific_files=specific_files,
278
extra_trees=extra_trees, old_label='old/',
280
return output.getvalue()
283
class TestDiffDates(TestShowDiffTreesHelper):
286
super(TestDiffDates, self).setUp()
287
self.wt = self.make_branch_and_tree('.')
288
self.b = self.wt.branch
289
self.build_tree_contents([
290
('file1', 'file1 contents at rev 1\n'),
291
('file2', 'file2 contents at rev 1\n')
293
self.wt.add(['file1', 'file2'])
295
message='Revision 1',
296
timestamp=1143849600, # 2006-04-01 00:00:00 UTC
299
self.build_tree_contents([('file1', 'file1 contents at rev 2\n')])
301
message='Revision 2',
302
timestamp=1143936000, # 2006-04-02 00:00:00 UTC
305
self.build_tree_contents([('file2', 'file2 contents at rev 3\n')])
307
message='Revision 3',
308
timestamp=1144022400, # 2006-04-03 00:00:00 UTC
311
self.wt.remove(['file2'])
313
message='Revision 4',
314
timestamp=1144108800, # 2006-04-04 00:00:00 UTC
317
self.build_tree_contents([
318
('file1', 'file1 contents in working tree\n')
320
# set the date stamps for files in the working tree to known values
321
os.utime('file1', (1144195200, 1144195200)) # 2006-04-05 00:00:00 UTC
323
def test_diff_rev_tree_working_tree(self):
324
output = self.get_diff(self.wt.basis_tree(), self.wt)
325
# note that the date for old/file1 is from rev 2 rather than from
326
# the basis revision (rev 4)
327
self.assertEqualDiff(output, '''\
328
=== modified file 'file1'
329
--- old/file1\t2006-04-02 00:00:00 +0000
330
+++ new/file1\t2006-04-05 00:00:00 +0000
332
-file1 contents at rev 2
333
+file1 contents in working tree
337
def test_diff_rev_tree_rev_tree(self):
338
tree1 = self.b.repository.revision_tree('rev-2')
339
tree2 = self.b.repository.revision_tree('rev-3')
340
output = self.get_diff(tree1, tree2)
341
self.assertEqualDiff(output, '''\
342
=== modified file 'file2'
343
--- old/file2\t2006-04-01 00:00:00 +0000
344
+++ new/file2\t2006-04-03 00:00:00 +0000
346
-file2 contents at rev 1
347
+file2 contents at rev 3
351
def test_diff_add_files(self):
352
tree1 = self.b.repository.revision_tree(_mod_revision.NULL_REVISION)
353
tree2 = self.b.repository.revision_tree('rev-1')
354
output = self.get_diff(tree1, tree2)
355
# the files have the epoch time stamp for the tree in which
357
self.assertEqualDiff(output, '''\
358
=== added file 'file1'
359
--- old/file1\t1970-01-01 00:00:00 +0000
360
+++ new/file1\t2006-04-01 00:00:00 +0000
362
+file1 contents at rev 1
364
=== added file 'file2'
365
--- old/file2\t1970-01-01 00:00:00 +0000
366
+++ new/file2\t2006-04-01 00:00:00 +0000
368
+file2 contents at rev 1
372
def test_diff_remove_files(self):
373
tree1 = self.b.repository.revision_tree('rev-3')
374
tree2 = self.b.repository.revision_tree('rev-4')
375
output = self.get_diff(tree1, tree2)
376
# the file has the epoch time stamp for the tree in which
378
self.assertEqualDiff(output, '''\
379
=== removed file 'file2'
380
--- old/file2\t2006-04-03 00:00:00 +0000
381
+++ new/file2\t1970-01-01 00:00:00 +0000
383
-file2 contents at rev 3
387
def test_show_diff_specified(self):
388
"""A working tree filename can be used to identify a file"""
389
self.wt.rename_one('file1', 'file1b')
390
old_tree = self.b.repository.revision_tree('rev-1')
391
new_tree = self.b.repository.revision_tree('rev-4')
392
out = self.get_diff(old_tree, new_tree, specific_files=['file1b'],
393
working_tree=self.wt)
394
self.assertContainsRe(out, 'file1\t')
396
def test_recursive_diff(self):
397
"""Children of directories are matched"""
400
self.wt.add(['dir1', 'dir2'])
401
self.wt.rename_one('file1', 'dir1/file1')
402
old_tree = self.b.repository.revision_tree('rev-1')
403
new_tree = self.b.repository.revision_tree('rev-4')
404
out = self.get_diff(old_tree, new_tree, specific_files=['dir1'],
405
working_tree=self.wt)
406
self.assertContainsRe(out, 'file1\t')
407
out = self.get_diff(old_tree, new_tree, specific_files=['dir2'],
408
working_tree=self.wt)
409
self.assertNotContainsRe(out, 'file1\t')
413
class TestShowDiffTrees(TestShowDiffTreesHelper):
414
"""Direct tests for show_diff_trees"""
416
def test_modified_file(self):
417
"""Test when a file is modified."""
418
tree = self.make_branch_and_tree('tree')
419
self.build_tree_contents([('tree/file', 'contents\n')])
420
tree.add(['file'], ['file-id'])
421
tree.commit('one', rev_id='rev-1')
423
self.build_tree_contents([('tree/file', 'new contents\n')])
424
diff = self.get_diff(tree.basis_tree(), tree)
425
self.assertContainsRe(diff, "=== modified file 'file'\n")
426
self.assertContainsRe(diff, '--- old/file\t')
427
self.assertContainsRe(diff, '\\+\\+\\+ new/file\t')
428
self.assertContainsRe(diff, '-contents\n'
431
def test_modified_file_in_renamed_dir(self):
432
"""Test when a file is modified in a renamed directory."""
433
tree = self.make_branch_and_tree('tree')
434
self.build_tree(['tree/dir/'])
435
self.build_tree_contents([('tree/dir/file', 'contents\n')])
436
tree.add(['dir', 'dir/file'], ['dir-id', 'file-id'])
437
tree.commit('one', rev_id='rev-1')
439
tree.rename_one('dir', 'other')
440
self.build_tree_contents([('tree/other/file', 'new contents\n')])
441
diff = self.get_diff(tree.basis_tree(), tree)
442
self.assertContainsRe(diff, "=== renamed directory 'dir' => 'other'\n")
443
self.assertContainsRe(diff, "=== modified file 'other/file'\n")
444
# XXX: This is technically incorrect, because it used to be at another
445
# location. What to do?
446
self.assertContainsRe(diff, '--- old/dir/file\t')
447
self.assertContainsRe(diff, '\\+\\+\\+ new/other/file\t')
448
self.assertContainsRe(diff, '-contents\n'
451
def test_renamed_directory(self):
452
"""Test when only a directory is only renamed."""
453
tree = self.make_branch_and_tree('tree')
454
self.build_tree(['tree/dir/'])
455
self.build_tree_contents([('tree/dir/file', 'contents\n')])
456
tree.add(['dir', 'dir/file'], ['dir-id', 'file-id'])
457
tree.commit('one', rev_id='rev-1')
459
tree.rename_one('dir', 'newdir')
460
diff = self.get_diff(tree.basis_tree(), tree)
461
# Renaming a directory should be a single "you renamed this dir" even
462
# when there are files inside.
463
self.assertEqual("=== renamed directory 'dir' => 'newdir'\n", diff)
465
def test_renamed_file(self):
466
"""Test when a file is only renamed."""
467
tree = self.make_branch_and_tree('tree')
468
self.build_tree_contents([('tree/file', 'contents\n')])
469
tree.add(['file'], ['file-id'])
470
tree.commit('one', rev_id='rev-1')
472
tree.rename_one('file', 'newname')
473
diff = self.get_diff(tree.basis_tree(), tree)
474
self.assertContainsRe(diff, "=== renamed file 'file' => 'newname'\n")
475
# We shouldn't have a --- or +++ line, because there is no content
477
self.assertNotContainsRe(diff, '---')
479
def test_renamed_and_modified_file(self):
480
"""Test when a file is only renamed."""
481
tree = self.make_branch_and_tree('tree')
482
self.build_tree_contents([('tree/file', 'contents\n')])
483
tree.add(['file'], ['file-id'])
484
tree.commit('one', rev_id='rev-1')
486
tree.rename_one('file', 'newname')
487
self.build_tree_contents([('tree/newname', 'new contents\n')])
488
diff = self.get_diff(tree.basis_tree(), tree)
489
self.assertContainsRe(diff, "=== renamed file 'file' => 'newname'\n")
490
self.assertContainsRe(diff, '--- old/file\t')
491
self.assertContainsRe(diff, '\\+\\+\\+ new/newname\t')
492
self.assertContainsRe(diff, '-contents\n'
496
def test_internal_diff_exec_property(self):
497
tree = self.make_branch_and_tree('tree')
499
tt = transform.TreeTransform(tree)
500
tt.new_file('a', tt.root, 'contents\n', 'a-id', True)
501
tt.new_file('b', tt.root, 'contents\n', 'b-id', False)
502
tt.new_file('c', tt.root, 'contents\n', 'c-id', True)
503
tt.new_file('d', tt.root, 'contents\n', 'd-id', False)
504
tt.new_file('e', tt.root, 'contents\n', 'control-e-id', True)
505
tt.new_file('f', tt.root, 'contents\n', 'control-f-id', False)
507
tree.commit('one', rev_id='rev-1')
509
tt = transform.TreeTransform(tree)
510
tt.set_executability(False, tt.trans_id_file_id('a-id'))
511
tt.set_executability(True, tt.trans_id_file_id('b-id'))
512
tt.set_executability(False, tt.trans_id_file_id('c-id'))
513
tt.set_executability(True, tt.trans_id_file_id('d-id'))
515
tree.rename_one('c', 'new-c')
516
tree.rename_one('d', 'new-d')
518
diff = self.get_diff(tree.basis_tree(), tree)
520
self.assertContainsRe(diff, r"file 'a'.*\(properties changed:.*\+x to -x.*\)")
521
self.assertContainsRe(diff, r"file 'b'.*\(properties changed:.*-x to \+x.*\)")
522
self.assertContainsRe(diff, r"file 'c'.*\(properties changed:.*\+x to -x.*\)")
523
self.assertContainsRe(diff, r"file 'd'.*\(properties changed:.*-x to \+x.*\)")
524
self.assertNotContainsRe(diff, r"file 'e'")
525
self.assertNotContainsRe(diff, r"file 'f'")
528
def test_binary_unicode_filenames(self):
529
"""Test that contents of files are *not* encoded in UTF-8 when there
530
is a binary file in the diff.
532
# See https://bugs.launchpad.net/bugs/110092.
533
self.requireFeature(tests.UnicodeFilenameFeature)
535
# This bug isn't triggered with cStringIO.
536
from StringIO import StringIO
537
tree = self.make_branch_and_tree('tree')
538
alpha, omega = u'\u03b1', u'\u03c9'
539
alpha_utf8, omega_utf8 = alpha.encode('utf8'), omega.encode('utf8')
540
self.build_tree_contents(
541
[('tree/' + alpha, chr(0)),
543
('The %s and the %s\n' % (alpha_utf8, omega_utf8)))])
544
tree.add([alpha], ['file-id'])
545
tree.add([omega], ['file-id-2'])
546
diff_content = StringIO()
547
show_diff_trees(tree.basis_tree(), tree, diff_content)
548
diff = diff_content.getvalue()
549
self.assertContainsRe(diff, r"=== added file '%s'" % alpha_utf8)
550
self.assertContainsRe(
551
diff, "Binary files a/%s.*and b/%s.* differ\n" % (alpha_utf8, alpha_utf8))
552
self.assertContainsRe(diff, r"=== added file '%s'" % omega_utf8)
553
self.assertContainsRe(diff, r"--- a/%s" % (omega_utf8,))
554
self.assertContainsRe(diff, r"\+\+\+ b/%s" % (omega_utf8,))
556
def test_unicode_filename(self):
557
"""Test when the filename are unicode."""
558
self.requireFeature(tests.UnicodeFilenameFeature)
560
alpha, omega = u'\u03b1', u'\u03c9'
561
autf8, outf8 = alpha.encode('utf8'), omega.encode('utf8')
563
tree = self.make_branch_and_tree('tree')
564
self.build_tree_contents([('tree/ren_'+alpha, 'contents\n')])
565
tree.add(['ren_'+alpha], ['file-id-2'])
566
self.build_tree_contents([('tree/del_'+alpha, 'contents\n')])
567
tree.add(['del_'+alpha], ['file-id-3'])
568
self.build_tree_contents([('tree/mod_'+alpha, 'contents\n')])
569
tree.add(['mod_'+alpha], ['file-id-4'])
571
tree.commit('one', rev_id='rev-1')
573
tree.rename_one('ren_'+alpha, 'ren_'+omega)
574
tree.remove('del_'+alpha)
575
self.build_tree_contents([('tree/add_'+alpha, 'contents\n')])
576
tree.add(['add_'+alpha], ['file-id'])
577
self.build_tree_contents([('tree/mod_'+alpha, 'contents_mod\n')])
579
diff = self.get_diff(tree.basis_tree(), tree)
580
self.assertContainsRe(diff,
581
"=== renamed file 'ren_%s' => 'ren_%s'\n"%(autf8, outf8))
582
self.assertContainsRe(diff, "=== added file 'add_%s'"%autf8)
583
self.assertContainsRe(diff, "=== modified file 'mod_%s'"%autf8)
584
self.assertContainsRe(diff, "=== removed file 'del_%s'"%autf8)
587
class DiffWasIs(DiffPath):
589
def diff(self, file_id, old_path, new_path, old_kind, new_kind):
590
self.to_file.write('was: ')
591
self.to_file.write(self.old_tree.get_file(file_id).read())
592
self.to_file.write('is: ')
593
self.to_file.write(self.new_tree.get_file(file_id).read())
597
class TestDiffTree(TestCaseWithTransport):
600
TestCaseWithTransport.setUp(self)
601
self.old_tree = self.make_branch_and_tree('old-tree')
602
self.old_tree.lock_write()
603
self.addCleanup(self.old_tree.unlock)
604
self.new_tree = self.make_branch_and_tree('new-tree')
605
self.new_tree.lock_write()
606
self.addCleanup(self.new_tree.unlock)
607
self.differ = DiffTree(self.old_tree, self.new_tree, StringIO())
609
def test_diff_text(self):
610
self.build_tree_contents([('old-tree/olddir/',),
611
('old-tree/olddir/oldfile', 'old\n')])
612
self.old_tree.add('olddir')
613
self.old_tree.add('olddir/oldfile', 'file-id')
614
self.build_tree_contents([('new-tree/newdir/',),
615
('new-tree/newdir/newfile', 'new\n')])
616
self.new_tree.add('newdir')
617
self.new_tree.add('newdir/newfile', 'file-id')
618
differ = DiffText(self.old_tree, self.new_tree, StringIO())
619
differ.diff_text('file-id', None, 'old label', 'new label')
621
'--- old label\n+++ new label\n@@ -1,1 +0,0 @@\n-old\n\n',
622
differ.to_file.getvalue())
623
differ.to_file.seek(0)
624
differ.diff_text(None, 'file-id', 'old label', 'new label')
626
'--- old label\n+++ new label\n@@ -0,0 +1,1 @@\n+new\n\n',
627
differ.to_file.getvalue())
628
differ.to_file.seek(0)
629
differ.diff_text('file-id', 'file-id', 'old label', 'new label')
631
'--- old label\n+++ new label\n@@ -1,1 +1,1 @@\n-old\n+new\n\n',
632
differ.to_file.getvalue())
634
def test_diff_deletion(self):
635
self.build_tree_contents([('old-tree/file', 'contents'),
636
('new-tree/file', 'contents')])
637
self.old_tree.add('file', 'file-id')
638
self.new_tree.add('file', 'file-id')
639
os.unlink('new-tree/file')
640
self.differ.show_diff(None)
641
self.assertContainsRe(self.differ.to_file.getvalue(), '-contents')
643
def test_diff_creation(self):
644
self.build_tree_contents([('old-tree/file', 'contents'),
645
('new-tree/file', 'contents')])
646
self.old_tree.add('file', 'file-id')
647
self.new_tree.add('file', 'file-id')
648
os.unlink('old-tree/file')
649
self.differ.show_diff(None)
650
self.assertContainsRe(self.differ.to_file.getvalue(), '\+contents')
652
def test_diff_symlink(self):
653
differ = DiffSymlink(self.old_tree, self.new_tree, StringIO())
654
differ.diff_symlink('old target', None)
655
self.assertEqual("=== target was 'old target'\n",
656
differ.to_file.getvalue())
658
differ = DiffSymlink(self.old_tree, self.new_tree, StringIO())
659
differ.diff_symlink(None, 'new target')
660
self.assertEqual("=== target is 'new target'\n",
661
differ.to_file.getvalue())
663
differ = DiffSymlink(self.old_tree, self.new_tree, StringIO())
664
differ.diff_symlink('old target', 'new target')
665
self.assertEqual("=== target changed 'old target' => 'new target'\n",
666
differ.to_file.getvalue())
669
self.build_tree_contents([('old-tree/olddir/',),
670
('old-tree/olddir/oldfile', 'old\n')])
671
self.old_tree.add('olddir')
672
self.old_tree.add('olddir/oldfile', 'file-id')
673
self.build_tree_contents([('new-tree/newdir/',),
674
('new-tree/newdir/newfile', 'new\n')])
675
self.new_tree.add('newdir')
676
self.new_tree.add('newdir/newfile', 'file-id')
677
self.differ.diff('file-id', 'olddir/oldfile', 'newdir/newfile')
678
self.assertContainsRe(
679
self.differ.to_file.getvalue(),
680
r'--- olddir/oldfile.*\n\+\+\+ newdir/newfile.*\n\@\@ -1,1 \+1,1'
681
' \@\@\n-old\n\+new\n\n')
683
def test_diff_kind_change(self):
684
self.requireFeature(tests.SymlinkFeature)
685
self.build_tree_contents([('old-tree/olddir/',),
686
('old-tree/olddir/oldfile', 'old\n')])
687
self.old_tree.add('olddir')
688
self.old_tree.add('olddir/oldfile', 'file-id')
689
self.build_tree(['new-tree/newdir/'])
690
os.symlink('new', 'new-tree/newdir/newfile')
691
self.new_tree.add('newdir')
692
self.new_tree.add('newdir/newfile', 'file-id')
693
self.differ.diff('file-id', 'olddir/oldfile', 'newdir/newfile')
694
self.assertContainsRe(
695
self.differ.to_file.getvalue(),
696
r'--- olddir/oldfile.*\n\+\+\+ newdir/newfile.*\n\@\@ -1,1 \+0,0'
698
self.assertContainsRe(self.differ.to_file.getvalue(),
699
"=== target is u'new'\n")
701
def test_diff_directory(self):
702
self.build_tree(['new-tree/new-dir/'])
703
self.new_tree.add('new-dir', 'new-dir-id')
704
self.differ.diff('new-dir-id', None, 'new-dir')
705
self.assertEqual(self.differ.to_file.getvalue(), '')
707
def create_old_new(self):
708
self.build_tree_contents([('old-tree/olddir/',),
709
('old-tree/olddir/oldfile', 'old\n')])
710
self.old_tree.add('olddir')
711
self.old_tree.add('olddir/oldfile', 'file-id')
712
self.build_tree_contents([('new-tree/newdir/',),
713
('new-tree/newdir/newfile', 'new\n')])
714
self.new_tree.add('newdir')
715
self.new_tree.add('newdir/newfile', 'file-id')
717
def test_register_diff(self):
718
self.create_old_new()
719
old_diff_factories = DiffTree.diff_factories
720
DiffTree.diff_factories=old_diff_factories[:]
721
DiffTree.diff_factories.insert(0, DiffWasIs.from_diff_tree)
723
differ = DiffTree(self.old_tree, self.new_tree, StringIO())
725
DiffTree.diff_factories = old_diff_factories
726
differ.diff('file-id', 'olddir/oldfile', 'newdir/newfile')
727
self.assertNotContainsRe(
728
differ.to_file.getvalue(),
729
r'--- olddir/oldfile.*\n\+\+\+ newdir/newfile.*\n\@\@ -1,1 \+1,1'
730
' \@\@\n-old\n\+new\n\n')
731
self.assertContainsRe(differ.to_file.getvalue(),
732
'was: old\nis: new\n')
734
def test_extra_factories(self):
735
self.create_old_new()
736
differ = DiffTree(self.old_tree, self.new_tree, StringIO(),
737
extra_factories=[DiffWasIs.from_diff_tree])
738
differ.diff('file-id', 'olddir/oldfile', 'newdir/newfile')
739
self.assertNotContainsRe(
740
differ.to_file.getvalue(),
741
r'--- olddir/oldfile.*\n\+\+\+ newdir/newfile.*\n\@\@ -1,1 \+1,1'
742
' \@\@\n-old\n\+new\n\n')
743
self.assertContainsRe(differ.to_file.getvalue(),
744
'was: old\nis: new\n')
746
def test_alphabetical_order(self):
747
self.build_tree(['new-tree/a-file'])
748
self.new_tree.add('a-file')
749
self.build_tree(['old-tree/b-file'])
750
self.old_tree.add('b-file')
751
self.differ.show_diff(None)
752
self.assertContainsRe(self.differ.to_file.getvalue(),
753
'.*a-file(.|\n)*b-file')
756
class TestPatienceDiffLib(TestCase):
759
super(TestPatienceDiffLib, self).setUp()
760
self._unique_lcs = bzrlib._patiencediff_py.unique_lcs_py
761
self._recurse_matches = bzrlib._patiencediff_py.recurse_matches_py
762
self._PatienceSequenceMatcher = \
763
bzrlib._patiencediff_py.PatienceSequenceMatcher_py
765
def test_diff_unicode_string(self):
766
a = ''.join([unichr(i) for i in range(4000, 4500, 3)])
767
b = ''.join([unichr(i) for i in range(4300, 4800, 2)])
768
sm = self._PatienceSequenceMatcher(None, a, b)
769
mb = sm.get_matching_blocks()
770
self.assertEquals(35, len(mb))
772
def test_unique_lcs(self):
773
unique_lcs = self._unique_lcs
774
self.assertEquals(unique_lcs('', ''), [])
775
self.assertEquals(unique_lcs('', 'a'), [])
776
self.assertEquals(unique_lcs('a', ''), [])
777
self.assertEquals(unique_lcs('a', 'a'), [(0,0)])
778
self.assertEquals(unique_lcs('a', 'b'), [])
779
self.assertEquals(unique_lcs('ab', 'ab'), [(0,0), (1,1)])
780
self.assertEquals(unique_lcs('abcde', 'cdeab'), [(2,0), (3,1), (4,2)])
781
self.assertEquals(unique_lcs('cdeab', 'abcde'), [(0,2), (1,3), (2,4)])
782
self.assertEquals(unique_lcs('abXde', 'abYde'), [(0,0), (1,1),
784
self.assertEquals(unique_lcs('acbac', 'abc'), [(2,1)])
786
def test_recurse_matches(self):
787
def test_one(a, b, matches):
789
self._recurse_matches(
790
a, b, 0, 0, len(a), len(b), test_matches, 10)
791
self.assertEquals(test_matches, matches)
793
test_one(['a', '', 'b', '', 'c'], ['a', 'a', 'b', 'c', 'c'],
794
[(0, 0), (2, 2), (4, 4)])
795
test_one(['a', 'c', 'b', 'a', 'c'], ['a', 'b', 'c'],
796
[(0, 0), (2, 1), (4, 2)])
797
# Even though 'bc' is not unique globally, and is surrounded by
798
# non-matching lines, we should still match, because they are locally
800
test_one('abcdbce', 'afbcgdbce', [(0,0), (1, 2), (2, 3), (3, 5),
801
(4, 6), (5, 7), (6, 8)])
803
# recurse_matches doesn't match non-unique
804
# lines surrounded by bogus text.
805
# The update has been done in patiencediff.SequenceMatcher instead
807
# This is what it could be
808
#test_one('aBccDe', 'abccde', [(0,0), (2,2), (3,3), (5,5)])
810
# This is what it currently gives:
811
test_one('aBccDe', 'abccde', [(0,0), (5,5)])
813
def assertDiffBlocks(self, a, b, expected_blocks):
814
"""Check that the sequence matcher returns the correct blocks.
816
:param a: A sequence to match
817
:param b: Another sequence to match
818
:param expected_blocks: The expected output, not including the final
819
matching block (len(a), len(b), 0)
821
matcher = self._PatienceSequenceMatcher(None, a, b)
822
blocks = matcher.get_matching_blocks()
824
self.assertEqual((len(a), len(b), 0), last)
825
self.assertEqual(expected_blocks, blocks)
827
def test_matching_blocks(self):
828
# Some basic matching tests
829
self.assertDiffBlocks('', '', [])
830
self.assertDiffBlocks([], [], [])
831
self.assertDiffBlocks('abc', '', [])
832
self.assertDiffBlocks('', 'abc', [])
833
self.assertDiffBlocks('abcd', 'abcd', [(0, 0, 4)])
834
self.assertDiffBlocks('abcd', 'abce', [(0, 0, 3)])
835
self.assertDiffBlocks('eabc', 'abce', [(1, 0, 3)])
836
self.assertDiffBlocks('eabce', 'abce', [(1, 0, 4)])
837
self.assertDiffBlocks('abcde', 'abXde', [(0, 0, 2), (3, 3, 2)])
838
self.assertDiffBlocks('abcde', 'abXYZde', [(0, 0, 2), (3, 5, 2)])
839
self.assertDiffBlocks('abde', 'abXYZde', [(0, 0, 2), (2, 5, 2)])
840
# This may check too much, but it checks to see that
841
# a copied block stays attached to the previous section,
843
# difflib would tend to grab the trailing longest match
844
# which would make the diff not look right
845
self.assertDiffBlocks('abcdefghijklmnop', 'abcdefxydefghijklmnop',
846
[(0, 0, 6), (6, 11, 10)])
848
# make sure it supports passing in lists
849
self.assertDiffBlocks(
852
'how are you today?\n'],
854
'how are you today?\n'],
855
[(0, 0, 1), (2, 1, 1)])
857
# non unique lines surrounded by non-matching lines
859
self.assertDiffBlocks('aBccDe', 'abccde', [(0,0,1), (5,5,1)])
861
# But they only need to be locally unique
862
self.assertDiffBlocks('aBcDec', 'abcdec', [(0,0,1), (2,2,1), (4,4,2)])
864
# non unique blocks won't be matched
865
self.assertDiffBlocks('aBcdEcdFg', 'abcdecdfg', [(0,0,1), (8,8,1)])
867
# but locally unique ones will
868
self.assertDiffBlocks('aBcdEeXcdFg', 'abcdecdfg', [(0,0,1), (2,2,2),
869
(5,4,1), (7,5,2), (10,8,1)])
871
self.assertDiffBlocks('abbabbXd', 'cabbabxd', [(7,7,1)])
872
self.assertDiffBlocks('abbabbbb', 'cabbabbc', [])
873
self.assertDiffBlocks('bbbbbbbb', 'cbbbbbbc', [])
875
def test_matching_blocks_tuples(self):
876
# Some basic matching tests
877
self.assertDiffBlocks([], [], [])
878
self.assertDiffBlocks([('a',), ('b',), ('c,')], [], [])
879
self.assertDiffBlocks([], [('a',), ('b',), ('c,')], [])
880
self.assertDiffBlocks([('a',), ('b',), ('c,')],
881
[('a',), ('b',), ('c,')],
883
self.assertDiffBlocks([('a',), ('b',), ('c,')],
884
[('a',), ('b',), ('d,')],
886
self.assertDiffBlocks([('d',), ('b',), ('c,')],
887
[('a',), ('b',), ('c,')],
889
self.assertDiffBlocks([('d',), ('a',), ('b',), ('c,')],
890
[('a',), ('b',), ('c,')],
892
self.assertDiffBlocks([('a', 'b'), ('c', 'd'), ('e', 'f')],
893
[('a', 'b'), ('c', 'X'), ('e', 'f')],
894
[(0, 0, 1), (2, 2, 1)])
895
self.assertDiffBlocks([('a', 'b'), ('c', 'd'), ('e', 'f')],
896
[('a', 'b'), ('c', 'dX'), ('e', 'f')],
897
[(0, 0, 1), (2, 2, 1)])
899
def test_opcodes(self):
900
def chk_ops(a, b, expected_codes):
901
s = self._PatienceSequenceMatcher(None, a, b)
902
self.assertEquals(expected_codes, s.get_opcodes())
906
chk_ops('abc', '', [('delete', 0,3, 0,0)])
907
chk_ops('', 'abc', [('insert', 0,0, 0,3)])
908
chk_ops('abcd', 'abcd', [('equal', 0,4, 0,4)])
909
chk_ops('abcd', 'abce', [('equal', 0,3, 0,3),
910
('replace', 3,4, 3,4)
912
chk_ops('eabc', 'abce', [('delete', 0,1, 0,0),
916
chk_ops('eabce', 'abce', [('delete', 0,1, 0,0),
919
chk_ops('abcde', 'abXde', [('equal', 0,2, 0,2),
920
('replace', 2,3, 2,3),
923
chk_ops('abcde', 'abXYZde', [('equal', 0,2, 0,2),
924
('replace', 2,3, 2,5),
927
chk_ops('abde', 'abXYZde', [('equal', 0,2, 0,2),
928
('insert', 2,2, 2,5),
931
chk_ops('abcdefghijklmnop', 'abcdefxydefghijklmnop',
932
[('equal', 0,6, 0,6),
933
('insert', 6,6, 6,11),
934
('equal', 6,16, 11,21)
939
, 'how are you today?\n'],
941
, 'how are you today?\n'],
942
[('equal', 0,1, 0,1),
943
('delete', 1,2, 1,1),
946
chk_ops('aBccDe', 'abccde',
947
[('equal', 0,1, 0,1),
948
('replace', 1,5, 1,5),
951
chk_ops('aBcDec', 'abcdec',
952
[('equal', 0,1, 0,1),
953
('replace', 1,2, 1,2),
955
('replace', 3,4, 3,4),
958
chk_ops('aBcdEcdFg', 'abcdecdfg',
959
[('equal', 0,1, 0,1),
960
('replace', 1,8, 1,8),
963
chk_ops('aBcdEeXcdFg', 'abcdecdfg',
964
[('equal', 0,1, 0,1),
965
('replace', 1,2, 1,2),
967
('delete', 4,5, 4,4),
969
('delete', 6,7, 5,5),
971
('replace', 9,10, 7,8),
972
('equal', 10,11, 8,9)
975
def test_grouped_opcodes(self):
976
def chk_ops(a, b, expected_codes, n=3):
977
s = self._PatienceSequenceMatcher(None, a, b)
978
self.assertEquals(expected_codes, list(s.get_grouped_opcodes(n)))
982
chk_ops('abc', '', [[('delete', 0,3, 0,0)]])
983
chk_ops('', 'abc', [[('insert', 0,0, 0,3)]])
984
chk_ops('abcd', 'abcd', [])
985
chk_ops('abcd', 'abce', [[('equal', 0,3, 0,3),
986
('replace', 3,4, 3,4)
988
chk_ops('eabc', 'abce', [[('delete', 0,1, 0,0),
992
chk_ops('abcdefghijklmnop', 'abcdefxydefghijklmnop',
993
[[('equal', 3,6, 3,6),
994
('insert', 6,6, 6,11),
995
('equal', 6,9, 11,14)
997
chk_ops('abcdefghijklmnop', 'abcdefxydefghijklmnop',
998
[[('equal', 2,6, 2,6),
999
('insert', 6,6, 6,11),
1000
('equal', 6,10, 11,15)
1002
chk_ops('Xabcdef', 'abcdef',
1003
[[('delete', 0,1, 0,0),
1006
chk_ops('abcdef', 'abcdefX',
1007
[[('equal', 3,6, 3,6),
1008
('insert', 6,6, 6,7)
1012
def test_multiple_ranges(self):
1013
# There was an earlier bug where we used a bad set of ranges,
1014
# this triggers that specific bug, to make sure it doesn't regress
1015
self.assertDiffBlocks('abcdefghijklmnop',
1016
'abcXghiYZQRSTUVWXYZijklmnop',
1017
[(0, 0, 3), (6, 4, 3), (9, 20, 7)])
1019
self.assertDiffBlocks('ABCd efghIjk L',
1020
'AxyzBCn mo pqrstuvwI1 2 L',
1021
[(0,0,1), (1, 4, 2), (9, 19, 1), (12, 23, 3)])
1023
# These are rot13 code snippets.
1024
self.assertDiffBlocks('''\
1025
trg nqqrq jura lbh nqq n svyr va gur qverpgbel.
1027
gnxrf_netf = ['svyr*']
1028
gnxrf_bcgvbaf = ['ab-erphefr']
1030
qrs eha(frys, svyr_yvfg, ab_erphefr=Snyfr):
1031
sebz omeyvo.nqq vzcbeg fzneg_nqq, nqq_ercbegre_cevag, nqq_ercbegre_ahyy
1033
ercbegre = nqq_ercbegre_ahyy
1035
ercbegre = nqq_ercbegre_cevag
1036
fzneg_nqq(svyr_yvfg, abg ab_erphefr, ercbegre)
1039
pynff pzq_zxqve(Pbzznaq):
1040
'''.splitlines(True), '''\
1041
trg nqqrq jura lbh nqq n svyr va gur qverpgbel.
1043
--qel-eha jvyy fubj juvpu svyrf jbhyq or nqqrq, ohg abg npghnyyl
1046
gnxrf_netf = ['svyr*']
1047
gnxrf_bcgvbaf = ['ab-erphefr', 'qel-eha']
1049
qrs eha(frys, svyr_yvfg, ab_erphefr=Snyfr, qel_eha=Snyfr):
1054
# Guvf vf cbvagyrff, ohg V'q engure abg envfr na reebe
1055
npgvba = omeyvo.nqq.nqq_npgvba_ahyy
1057
npgvba = omeyvo.nqq.nqq_npgvba_cevag
1059
npgvba = omeyvo.nqq.nqq_npgvba_nqq
1061
npgvba = omeyvo.nqq.nqq_npgvba_nqq_naq_cevag
1063
omeyvo.nqq.fzneg_nqq(svyr_yvfg, abg ab_erphefr, npgvba)
1066
pynff pzq_zxqve(Pbzznaq):
1067
'''.splitlines(True)
1068
, [(0,0,1), (1, 4, 2), (9, 19, 1), (12, 23, 3)])
1070
def test_patience_unified_diff(self):
1071
txt_a = ['hello there\n',
1073
'how are you today?\n']
1074
txt_b = ['hello there\n',
1075
'how are you today?\n']
1076
unified_diff = bzrlib.patiencediff.unified_diff
1077
psm = self._PatienceSequenceMatcher
1078
self.assertEquals(['--- \n',
1080
'@@ -1,3 +1,2 @@\n',
1083
' how are you today?\n'
1085
, list(unified_diff(txt_a, txt_b,
1086
sequencematcher=psm)))
1087
txt_a = map(lambda x: x+'\n', 'abcdefghijklmnop')
1088
txt_b = map(lambda x: x+'\n', 'abcdefxydefghijklmnop')
1089
# This is the result with LongestCommonSubstring matching
1090
self.assertEquals(['--- \n',
1092
'@@ -1,6 +1,11 @@\n',
1104
, list(unified_diff(txt_a, txt_b)))
1105
# And the patience diff
1106
self.assertEquals(['--- \n',
1108
'@@ -4,6 +4,11 @@\n',
1121
, list(unified_diff(txt_a, txt_b,
1122
sequencematcher=psm)))
1124
def test_patience_unified_diff_with_dates(self):
1125
txt_a = ['hello there\n',
1127
'how are you today?\n']
1128
txt_b = ['hello there\n',
1129
'how are you today?\n']
1130
unified_diff = bzrlib.patiencediff.unified_diff
1131
psm = self._PatienceSequenceMatcher
1132
self.assertEquals(['--- a\t2008-08-08\n',
1133
'+++ b\t2008-09-09\n',
1134
'@@ -1,3 +1,2 @@\n',
1137
' how are you today?\n'
1139
, list(unified_diff(txt_a, txt_b,
1140
fromfile='a', tofile='b',
1141
fromfiledate='2008-08-08',
1142
tofiledate='2008-09-09',
1143
sequencematcher=psm)))
1146
class TestPatienceDiffLib_c(TestPatienceDiffLib):
1148
_test_needs_features = [compiled_patiencediff_feature]
1151
super(TestPatienceDiffLib_c, self).setUp()
1152
import bzrlib._patiencediff_c
1153
self._unique_lcs = bzrlib._patiencediff_c.unique_lcs_c
1154
self._recurse_matches = bzrlib._patiencediff_c.recurse_matches_c
1155
self._PatienceSequenceMatcher = \
1156
bzrlib._patiencediff_c.PatienceSequenceMatcher_c
1158
def test_unhashable(self):
1159
"""We should get a proper exception here."""
1160
# We need to be able to hash items in the sequence, lists are
1161
# unhashable, and thus cannot be diffed
1162
e = self.assertRaises(TypeError, self._PatienceSequenceMatcher,
1164
e = self.assertRaises(TypeError, self._PatienceSequenceMatcher,
1165
None, ['valid', []], [])
1166
e = self.assertRaises(TypeError, self._PatienceSequenceMatcher,
1167
None, ['valid'], [[]])
1168
e = self.assertRaises(TypeError, self._PatienceSequenceMatcher,
1169
None, ['valid'], ['valid', []])
1172
class TestPatienceDiffLibFiles(TestCaseInTempDir):
1175
super(TestPatienceDiffLibFiles, self).setUp()
1176
self._PatienceSequenceMatcher = \
1177
bzrlib._patiencediff_py.PatienceSequenceMatcher_py
1179
def test_patience_unified_diff_files(self):
1180
txt_a = ['hello there\n',
1182
'how are you today?\n']
1183
txt_b = ['hello there\n',
1184
'how are you today?\n']
1185
open('a1', 'wb').writelines(txt_a)
1186
open('b1', 'wb').writelines(txt_b)
1188
unified_diff_files = bzrlib.patiencediff.unified_diff_files
1189
psm = self._PatienceSequenceMatcher
1190
self.assertEquals(['--- a1\n',
1192
'@@ -1,3 +1,2 @@\n',
1195
' how are you today?\n',
1197
, list(unified_diff_files('a1', 'b1',
1198
sequencematcher=psm)))
1200
txt_a = map(lambda x: x+'\n', 'abcdefghijklmnop')
1201
txt_b = map(lambda x: x+'\n', 'abcdefxydefghijklmnop')
1202
open('a2', 'wb').writelines(txt_a)
1203
open('b2', 'wb').writelines(txt_b)
1205
# This is the result with LongestCommonSubstring matching
1206
self.assertEquals(['--- a2\n',
1208
'@@ -1,6 +1,11 @@\n',
1220
, list(unified_diff_files('a2', 'b2')))
1222
# And the patience diff
1223
self.assertEquals(['--- a2\n',
1225
'@@ -4,6 +4,11 @@\n',
1238
, list(unified_diff_files('a2', 'b2',
1239
sequencematcher=psm)))
1242
class TestPatienceDiffLibFiles_c(TestPatienceDiffLibFiles):
1244
_test_needs_features = [compiled_patiencediff_feature]
1247
super(TestPatienceDiffLibFiles_c, self).setUp()
1248
import bzrlib._patiencediff_c
1249
self._PatienceSequenceMatcher = \
1250
bzrlib._patiencediff_c.PatienceSequenceMatcher_c
1253
class TestUsingCompiledIfAvailable(TestCase):
1255
def test_PatienceSequenceMatcher(self):
1256
if compiled_patiencediff_feature.available():
1257
from bzrlib._patiencediff_c import PatienceSequenceMatcher_c
1258
self.assertIs(PatienceSequenceMatcher_c,
1259
bzrlib.patiencediff.PatienceSequenceMatcher)
1261
from bzrlib._patiencediff_py import PatienceSequenceMatcher_py
1262
self.assertIs(PatienceSequenceMatcher_py,
1263
bzrlib.patiencediff.PatienceSequenceMatcher)
1265
def test_unique_lcs(self):
1266
if compiled_patiencediff_feature.available():
1267
from bzrlib._patiencediff_c import unique_lcs_c
1268
self.assertIs(unique_lcs_c,
1269
bzrlib.patiencediff.unique_lcs)
1271
from bzrlib._patiencediff_py import unique_lcs_py
1272
self.assertIs(unique_lcs_py,
1273
bzrlib.patiencediff.unique_lcs)
1275
def test_recurse_matches(self):
1276
if compiled_patiencediff_feature.available():
1277
from bzrlib._patiencediff_c import recurse_matches_c
1278
self.assertIs(recurse_matches_c,
1279
bzrlib.patiencediff.recurse_matches)
1281
from bzrlib._patiencediff_py import recurse_matches_py
1282
self.assertIs(recurse_matches_py,
1283
bzrlib.patiencediff.recurse_matches)
1286
class TestDiffFromTool(TestCaseWithTransport):
1288
def test_from_string(self):
1289
diff_obj = DiffFromTool.from_string('diff', None, None, None)
1290
self.addCleanup(diff_obj.finish)
1291
self.assertEqual(['diff', '@old_path', '@new_path'],
1292
diff_obj.command_template)
1294
def test_from_string_u5(self):
1295
diff_obj = DiffFromTool.from_string('diff -u\\ 5', None, None, None)
1296
self.addCleanup(diff_obj.finish)
1297
self.assertEqual(['diff', '-u 5', '@old_path', '@new_path'],
1298
diff_obj.command_template)
1299
self.assertEqual(['diff', '-u 5', 'old-path', 'new-path'],
1300
diff_obj._get_command('old-path', 'new-path'))
1302
def test_execute(self):
1304
diff_obj = DiffFromTool(['python', '-c',
1305
'print "@old_path @new_path"'],
1307
self.addCleanup(diff_obj.finish)
1308
diff_obj._execute('old', 'new')
1309
self.assertEqual(output.getvalue().rstrip(), 'old new')
1311
def test_excute_missing(self):
1312
diff_obj = DiffFromTool(['a-tool-which-is-unlikely-to-exist'],
1314
self.addCleanup(diff_obj.finish)
1315
e = self.assertRaises(ExecutableMissing, diff_obj._execute, 'old',
1317
self.assertEqual('a-tool-which-is-unlikely-to-exist could not be found'
1318
' on this machine', str(e))
1320
def test_prepare_files_creates_paths_readable_by_windows_tool(self):
1321
self.requireFeature(AttribFeature)
1323
tree = self.make_branch_and_tree('tree')
1324
self.build_tree_contents([('tree/file', 'content')])
1325
tree.add('file', 'file-id')
1326
tree.commit('old tree')
1328
self.addCleanup(tree.unlock)
1329
basis_tree = tree.basis_tree()
1330
basis_tree.lock_read()
1331
self.addCleanup(basis_tree.unlock)
1332
diff_obj = DiffFromTool(['python', '-c',
1333
'print "@old_path @new_path"'],
1334
basis_tree, tree, output)
1335
diff_obj._prepare_files('file-id', 'file', 'file')
1336
# The old content should be readonly
1337
self.assertReadableByAttrib(diff_obj._root, 'old\\file',
1339
# The new content should use the tree object, not a 'new' file anymore
1340
self.assertEndsWith(tree.basedir, 'work/tree')
1341
self.assertReadableByAttrib(tree.basedir, 'file', r'work\\tree\\file$')
1343
def assertReadableByAttrib(self, cwd, relpath, regex):
1344
proc = subprocess.Popen(['attrib', relpath],
1345
stdout=subprocess.PIPE,
1347
(result, err) = proc.communicate()
1348
self.assertContainsRe(result.replace('\r\n', '\n'), regex)
1350
def test_prepare_files(self):
1352
tree = self.make_branch_and_tree('tree')
1353
self.build_tree_contents([('tree/oldname', 'oldcontent')])
1354
self.build_tree_contents([('tree/oldname2', 'oldcontent2')])
1355
tree.add('oldname', 'file-id')
1356
tree.add('oldname2', 'file2-id')
1357
tree.commit('old tree', timestamp=0)
1358
tree.rename_one('oldname', 'newname')
1359
tree.rename_one('oldname2', 'newname2')
1360
self.build_tree_contents([('tree/newname', 'newcontent')])
1361
self.build_tree_contents([('tree/newname2', 'newcontent2')])
1362
old_tree = tree.basis_tree()
1363
old_tree.lock_read()
1364
self.addCleanup(old_tree.unlock)
1366
self.addCleanup(tree.unlock)
1367
diff_obj = DiffFromTool(['python', '-c',
1368
'print "@old_path @new_path"'],
1369
old_tree, tree, output)
1370
self.addCleanup(diff_obj.finish)
1371
self.assertContainsRe(diff_obj._root, 'bzr-diff-[^/]*')
1372
old_path, new_path = diff_obj._prepare_files('file-id', 'oldname',
1374
self.assertContainsRe(old_path, 'old/oldname$')
1375
self.assertEqual(0, os.stat(old_path).st_mtime)
1376
self.assertContainsRe(new_path, 'tree/newname$')
1377
self.assertFileEqual('oldcontent', old_path)
1378
self.assertFileEqual('newcontent', new_path)
1379
if osutils.host_os_dereferences_symlinks():
1380
self.assertTrue(os.path.samefile('tree/newname', new_path))
1381
# make sure we can create files with the same parent directories
1382
diff_obj._prepare_files('file2-id', 'oldname2', 'newname2')
1385
class TestGetTreesAndBranchesToDiff(TestCaseWithTransport):
1387
def test_basic(self):
1388
tree = self.make_branch_and_tree('tree')
1389
(old_tree, new_tree,
1390
old_branch, new_branch,
1391
specific_files, extra_trees) = \
1392
get_trees_and_branches_to_diff(['tree'], None, None, None)
1394
self.assertIsInstance(old_tree, RevisionTree)
1395
#print dir (old_tree)
1396
self.assertEqual(_mod_revision.NULL_REVISION, old_tree.get_revision_id())
1397
self.assertEqual(tree.basedir, new_tree.basedir)
1398
self.assertEqual(tree.branch.base, old_branch.base)
1399
self.assertEqual(tree.branch.base, new_branch.base)
1400
self.assertIs(None, specific_files)
1401
self.assertIs(None, extra_trees)
1403
def test_with_rev_specs(self):
1404
tree = self.make_branch_and_tree('tree')
1405
self.build_tree_contents([('tree/file', 'oldcontent')])
1406
tree.add('file', 'file-id')
1407
tree.commit('old tree', timestamp=0, rev_id="old-id")
1408
self.build_tree_contents([('tree/file', 'newcontent')])
1409
tree.commit('new tree', timestamp=0, rev_id="new-id")
1411
revisions = [RevisionSpec.from_string('1'),
1412
RevisionSpec.from_string('2')]
1413
(old_tree, new_tree,
1414
old_branch, new_branch,
1415
specific_files, extra_trees) = \
1416
get_trees_and_branches_to_diff(['tree'], revisions, None, None)
1418
self.assertIsInstance(old_tree, RevisionTree)
1419
self.assertEqual("old-id", old_tree.get_revision_id())
1420
self.assertIsInstance(new_tree, RevisionTree)
1421
self.assertEqual("new-id", new_tree.get_revision_id())
1422
self.assertEqual(tree.branch.base, old_branch.base)
1423
self.assertEqual(tree.branch.base, new_branch.base)
1424
self.assertIs(None, specific_files)
1425
self.assertEqual(tree.basedir, extra_trees[0].basedir)
47
assert lines[5] == '\\ No newline at end of file\n', \
48
"expected no-nl, got %r" % lines[5]
added
removed
bzrlib/selftest/testdiff.py
