« back to all changes in this revision
Viewing changes to tools/testweave.py
- browse files at revision 1092.1.6
- compare with another revision
- download diff
- download tarball
- view history from revision 1092.1.6
- Committer: Robert Collins
- Date: 2005-08-23 06:52:09 UTC
- mto: (974.1.50) (1185.1.10) (1092.3.1)
- mto: This revision was merged to the branch mainline in revision 1139.
- Revision ID: robertc@robertcollins.net-20050823065209-81cd5962c401751b
move io redirection into each test case from the global runner
- files added:
- HACKING
- bzrlib/util
- contrib/emacs
- tools
- files removed:
- bzrlib/statcache.py
- plugins/changeset
- plugins/rsync
- files renamed:
- plugins/ => bzrlib/plugins/
- effbot/ => bzrlib/util/effbot/
- elementtree/ => bzrlib/util/elementtree/
- urlgrabber/ => bzrlib/util/urlgrabber/
- files modified:
- .bzrignore
added
removed
tools/testweave.py
1
#! /usr/bin/python2.4
2
3
# Copyright (C) 2005 by Canonical Ltd
4
5
# This program is free software; you can redistribute it and/or modify
6
# it under the terms of the GNU General Public License as published by
7
# the Free Software Foundation; either version 2 of the License, or
8
# (at your option) any later version.
9
10
# This program is distributed in the hope that it will be useful,
11
# but WITHOUT ANY WARRANTY; without even the implied warranty of
12
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13
# GNU General Public License for more details.
14
15
# You should have received a copy of the GNU General Public License
16
# along with this program; if not, write to the Free Software
17
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19
20
# TODO: tests regarding version names
21
22
23
24
"""test suite for weave algorithm"""
25
26
27
import testsweet
28
from bzrlib.weave import Weave, WeaveFormatError
29
from bzrlib.weavefile import write_weave, read_weave
30
from pprint import pformat
31
32
33
try:
34
set
35
frozenset
36
except NameError:
37
from sets import Set, ImmutableSet
38
set = Set
39
frozenset = ImmutableSet
40
del Set, ImmutableSet
41
42
43
44
# texts for use in testing
45
TEXT_0 = ["Hello world"]
46
TEXT_1 = ["Hello world",
47
"A second line"]
48
49
50
51
class TestBase(testsweet.TestBase):
52
def check_read_write(self, k):
53
"""Check the weave k can be written & re-read."""
54
from tempfile import TemporaryFile
55
tf = TemporaryFile()
56
57
write_weave(k, tf)
58
tf.seek(0)
59
k2 = read_weave(tf)
60
61
if k != k2:
62
tf.seek(0)
63
self.log('serialized weave:')
64
self.log(tf.read())
65
66
self.log('')
67
self.log('parents: %s' % (k._parents == k2._parents))
68
self.log(' %r' % k._parents)
69
self.log(' %r' % k2._parents)
70
self.log('')
71
72
73
self.fail('read/write check failed')
74
75
76
77
78
class Easy(TestBase):
79
def runTest(self):
80
k = Weave()
81
82
83
class StoreText(TestBase):
84
"""Store and retrieve a simple text."""
85
def runTest(self):
86
k = Weave()
87
idx = k.add('text0', [], TEXT_0)
88
self.assertEqual(k.get(idx), TEXT_0)
89
self.assertEqual(idx, 0)
90
91
92
93
class AnnotateOne(TestBase):
94
def runTest(self):
95
k = Weave()
96
k.add('text0', [], TEXT_0)
97
self.assertEqual(k.annotate(0),
98
[(0, TEXT_0[0])])
99
100
101
class StoreTwo(TestBase):
102
def runTest(self):
103
k = Weave()
104
105
idx = k.add('text0', [], TEXT_0)
106
self.assertEqual(idx, 0)
107
108
idx = k.add('text1', [], TEXT_1)
109
self.assertEqual(idx, 1)
110
111
self.assertEqual(k.get(0), TEXT_0)
112
self.assertEqual(k.get(1), TEXT_1)
113
114
k.dump(self.TEST_LOG)
115
116
117
118
class InvalidAdd(TestBase):
119
"""Try to use invalid version number during add."""
120
def runTest(self):
121
k = Weave()
122
123
self.assertRaises(IndexError,
124
k.add,
125
'text0',
126
[69],
127
['new text!'])
128
129
130
class InsertLines(TestBase):
131
"""Store a revision that adds one line to the original.
132
133
Look at the annotations to make sure that the first line is matched
134
and not stored repeatedly."""
135
def runTest(self):
136
k = Weave()
137
138
k.add('text0', [], ['line 1'])
139
k.add('text1', [0], ['line 1', 'line 2'])
140
141
self.assertEqual(k.annotate(0),
142
[(0, 'line 1')])
143
144
self.assertEqual(k.get(1),
145
['line 1',
146
'line 2'])
147
148
self.assertEqual(k.annotate(1),
149
[(0, 'line 1'),
150
(1, 'line 2')])
151
152
k.add('text2', [0], ['line 1', 'diverged line'])
153
154
self.assertEqual(k.annotate(2),
155
[(0, 'line 1'),
156
(2, 'diverged line')])
157
158
text3 = ['line 1', 'middle line', 'line 2']
159
k.add('text3',
160
[0, 1],
161
text3)
162
163
# self.log("changes to text3: " + pformat(list(k._delta(set([0, 1]), text3))))
164
165
self.log("k._weave=" + pformat(k._weave))
166
167
self.assertEqual(k.annotate(3),
168
[(0, 'line 1'),
169
(3, 'middle line'),
170
(1, 'line 2')])
171
172
# now multiple insertions at different places
173
k.add('text4',
174
[0, 1, 3],
175
['line 1', 'aaa', 'middle line', 'bbb', 'line 2', 'ccc'])
176
177
self.assertEqual(k.annotate(4),
178
[(0, 'line 1'),
179
(4, 'aaa'),
180
(3, 'middle line'),
181
(4, 'bbb'),
182
(1, 'line 2'),
183
(4, 'ccc')])
184
185
186
187
class DeleteLines(TestBase):
188
"""Deletion of lines from existing text.
189
190
Try various texts all based on a common ancestor."""
191
def runTest(self):
192
k = Weave()
193
194
base_text = ['one', 'two', 'three', 'four']
195
196
k.add('text0', [], base_text)
197
198
texts = [['one', 'two', 'three'],
199
['two', 'three', 'four'],
200
['one', 'four'],
201
['one', 'two', 'three', 'four'],
202
]
203
204
i = 1
205
for t in texts:
206
ver = k.add('text%d' % i,
207
[0], t)
208
i += 1
209
210
self.log('final weave:')
211
self.log('k._weave=' + pformat(k._weave))
212
213
for i in range(len(texts)):
214
self.assertEqual(k.get(i+1),
215
texts[i])
216
217
218
219
220
class SuicideDelete(TestBase):
221
"""Invalid weave which tries to add and delete simultaneously."""
222
def runTest(self):
223
k = Weave()
224
225
k._parents = [(),
226
]
227
k._weave = [('{', 0),
228
'first line',
229
('[', 0),
230
'deleted in 0',
231
(']', 0),
232
('}', 0),
233
]
234
################################### SKIPPED
235
# Weave.get doesn't trap this anymore
236
return
237
238
self.assertRaises(WeaveFormatError,
239
k.get,
240
0)
241
242
243
244
class CannedDelete(TestBase):
245
"""Unpack canned weave with deleted lines."""
246
def runTest(self):
247
k = Weave()
248
249
k._parents = [(),
250
frozenset([0]),
251
]
252
k._weave = [('{', 0),
253
'first line',
254
('[', 1),
255
'line to be deleted',
256
(']', 1),
257
'last line',
258
('}', 0),
259
]
260
261
self.assertEqual(k.get(0),
262
['first line',
263
'line to be deleted',
264
'last line',
265
])
266
267
self.assertEqual(k.get(1),
268
['first line',
269
'last line',
270
])
271
272
273
274
class CannedReplacement(TestBase):
275
"""Unpack canned weave with deleted lines."""
276
def runTest(self):
277
k = Weave()
278
279
k._parents = [frozenset(),
280
frozenset([0]),
281
]
282
k._weave = [('{', 0),
283
'first line',
284
('[', 1),
285
'line to be deleted',
286
(']', 1),
287
('{', 1),
288
'replacement line',
289
('}', 1),
290
'last line',
291
('}', 0),
292
]
293
294
self.assertEqual(k.get(0),
295
['first line',
296
'line to be deleted',
297
'last line',
298
])
299
300
self.assertEqual(k.get(1),
301
['first line',
302
'replacement line',
303
'last line',
304
])
305
306
307
308
class BadWeave(TestBase):
309
"""Test that we trap an insert which should not occur."""
310
def runTest(self):
311
k = Weave()
312
313
k._parents = [frozenset(),
314
]
315
k._weave = ['bad line',
316
('{', 0),
317
'foo {',
318
('{', 1),
319
' added in version 1',
320
('{', 2),
321
' added in v2',
322
('}', 2),
323
' also from v1',
324
('}', 1),
325
'}',
326
('}', 0)]
327
328
################################### SKIPPED
329
# Weave.get doesn't trap this anymore
330
return
331
332
333
self.assertRaises(WeaveFormatError,
334
k.get,
335
0)
336
337
338
class BadInsert(TestBase):
339
"""Test that we trap an insert which should not occur."""
340
def runTest(self):
341
k = Weave()
342
343
k._parents = [frozenset(),
344
frozenset([0]),
345
frozenset([0]),
346
frozenset([0,1,2]),
347
]
348
k._weave = [('{', 0),
349
'foo {',
350
('{', 1),
351
' added in version 1',
352
('{', 1),
353
' more in 1',
354
('}', 1),
355
('}', 1),
356
('}', 0)]
357
358
359
# this is not currently enforced by get
360
return ##########################################
361
362
self.assertRaises(WeaveFormatError,
363
k.get,
364
0)
365
366
self.assertRaises(WeaveFormatError,
367
k.get,
368
1)
369
370
371
class InsertNested(TestBase):
372
"""Insertion with nested instructions."""
373
def runTest(self):
374
k = Weave()
375
376
k._parents = [frozenset(),
377
frozenset([0]),
378
frozenset([0]),
379
frozenset([0,1,2]),
380
]
381
k._weave = [('{', 0),
382
'foo {',
383
('{', 1),
384
' added in version 1',
385
('{', 2),
386
' added in v2',
387
('}', 2),
388
' also from v1',
389
('}', 1),
390
'}',
391
('}', 0)]
392
393
self.assertEqual(k.get(0),
394
['foo {',
395
'}'])
396
397
self.assertEqual(k.get(1),
398
['foo {',
399
' added in version 1',
400
' also from v1',
401
'}'])
402
403
self.assertEqual(k.get(2),
404
['foo {',
405
' added in v2',
406
'}'])
407
408
self.assertEqual(k.get(3),
409
['foo {',
410
' added in version 1',
411
' added in v2',
412
' also from v1',
413
'}'])
414
415
416
417
class DeleteLines2(TestBase):
418
"""Test recording revisions that delete lines.
419
420
This relies on the weave having a way to represent lines knocked
421
out by a later revision."""
422
def runTest(self):
423
k = Weave()
424
425
k.add('text0', [], ["line the first",
426
"line 2",
427
"line 3",
428
"fine"])
429
430
self.assertEqual(len(k.get(0)), 4)
431
432
k.add('text1', [0], ["line the first",
433
"fine"])
434
435
self.assertEqual(k.get(1),
436
["line the first",
437
"fine"])
438
439
self.assertEqual(k.annotate(1),
440
[(0, "line the first"),
441
(0, "fine")])
442
443
444
445
class IncludeVersions(TestBase):
446
"""Check texts that are stored across multiple revisions.
447
448
Here we manually create a weave with particular encoding and make
449
sure it unpacks properly.
450
451
Text 0 includes nothing; text 1 includes text 0 and adds some
452
lines.
453
"""
454
455
def runTest(self):
456
k = Weave()
457
458
k._parents = [frozenset(), frozenset([0])]
459
k._weave = [('{', 0),
460
"first line",
461
('}', 0),
462
('{', 1),
463
"second line",
464
('}', 1)]
465
466
self.assertEqual(k.get(1),
467
["first line",
468
"second line"])
469
470
self.assertEqual(k.get(0),
471
["first line"])
472
473
k.dump(self.TEST_LOG)
474
475
476
class DivergedIncludes(TestBase):
477
"""Weave with two diverged texts based on version 0.
478
"""
479
def runTest(self):
480
k = Weave()
481
482
k._parents = [frozenset(),
483
frozenset([0]),
484
frozenset([0]),
485
]
486
k._weave = [('{', 0),
487
"first line",
488
('}', 0),
489
('{', 1),
490
"second line",
491
('}', 1),
492
('{', 2),
493
"alternative second line",
494
('}', 2),
495
]
496
497
self.assertEqual(k.get(0),
498
["first line"])
499
500
self.assertEqual(k.get(1),
501
["first line",
502
"second line"])
503
504
self.assertEqual(k.get(2),
505
["first line",
506
"alternative second line"])
507
508
self.assertEqual(list(k.inclusions([2])),
509
[0, 2])
510
511
512
513
class ReplaceLine(TestBase):
514
def runTest(self):
515
k = Weave()
516
517
text0 = ['cheddar', 'stilton', 'gruyere']
518
text1 = ['cheddar', 'blue vein', 'neufchatel', 'chevre']
519
520
k.add('text0', [], text0)
521
k.add('text1', [0], text1)
522
523
self.log('k._weave=' + pformat(k._weave))
524
525
self.assertEqual(k.get(0), text0)
526
self.assertEqual(k.get(1), text1)
527
528
529
530
class Merge(TestBase):
531
"""Storage of versions that merge diverged parents"""
532
def runTest(self):
533
k = Weave()
534
535
texts = [['header'],
536
['header', '', 'line from 1'],
537
['header', '', 'line from 2', 'more from 2'],
538
['header', '', 'line from 1', 'fixup line', 'line from 2'],
539
]
540
541
k.add('text0', [], texts[0])
542
k.add('text1', [0], texts[1])
543
k.add('text2', [0], texts[2])
544
k.add('merge', [0, 1, 2], texts[3])
545
546
for i, t in enumerate(texts):
547
self.assertEqual(k.get(i), t)
548
549
self.assertEqual(k.annotate(3),
550
[(0, 'header'),
551
(1, ''),
552
(1, 'line from 1'),
553
(3, 'fixup line'),
554
(2, 'line from 2'),
555
])
556
557
self.assertEqual(list(k.inclusions([3])),
558
[0, 1, 2, 3])
559
560
self.log('k._weave=' + pformat(k._weave))
561
562
self.check_read_write(k)
563
564
565
class Conflicts(TestBase):
566
"""Test detection of conflicting regions during a merge.
567
568
A base version is inserted, then two descendents try to
569
insert different lines in the same place. These should be
570
reported as a possible conflict and forwarded to the user."""
571
def runTest(self):
572
return # NOT RUN
573
k = Weave()
574
575
k.add([], ['aaa', 'bbb'])
576
k.add([0], ['aaa', '111', 'bbb'])
577
k.add([1], ['aaa', '222', 'bbb'])
578
579
merged = k.merge([1, 2])
580
581
self.assertEquals([[['aaa']],
582
[['111'], ['222']],
583
[['bbb']]])
584
585
586
587
class NonConflict(TestBase):
588
"""Two descendants insert compatible changes.
589
590
No conflict should be reported."""
591
def runTest(self):
592
return # NOT RUN
593
k = Weave()
594
595
k.add([], ['aaa', 'bbb'])
596
k.add([0], ['111', 'aaa', 'ccc', 'bbb'])
597
k.add([1], ['aaa', 'ccc', 'bbb', '222'])
598
599
600
601
602
603
class AutoMerge(TestBase):
604
def runTest(self):
605
k = Weave()
606
607
texts = [['header', 'aaa', 'bbb'],
608
['header', 'aaa', 'line from 1', 'bbb'],
609
['header', 'aaa', 'bbb', 'line from 2', 'more from 2'],
610
]
611
612
k.add('text0', [], texts[0])
613
k.add('text1', [0], texts[1])
614
k.add('text2', [0], texts[2])
615
616
self.log('k._weave=' + pformat(k._weave))
617
618
m = list(k.mash_iter([0, 1, 2]))
619
620
self.assertEqual(m,
621
['header', 'aaa',
622
'line from 1',
623
'bbb',
624
'line from 2', 'more from 2'])
625
626
627
628
class Khayyam(TestBase):
629
"""Test changes to multi-line texts, and read/write"""
630
def runTest(self):
631
rawtexts = [
632
"""A Book of Verses underneath the Bough,
633
A Jug of Wine, a Loaf of Bread, -- and Thou
634
Beside me singing in the Wilderness --
635
Oh, Wilderness were Paradise enow!""",
636
637
"""A Book of Verses underneath the Bough,
638
A Jug of Wine, a Loaf of Bread, -- and Thou
639
Beside me singing in the Wilderness --
640
Oh, Wilderness were Paradise now!""",
641
642
"""A Book of poems underneath the tree,
643
A Jug of Wine, a Loaf of Bread,
644
and Thou
645
Beside me singing in the Wilderness --
646
Oh, Wilderness were Paradise now!
647
648
-- O. Khayyam""",
649
650
"""A Book of Verses underneath the Bough,
651
A Jug of Wine, a Loaf of Bread,
652
and Thou
653
Beside me singing in the Wilderness --
654
Oh, Wilderness were Paradise now!""",
655
]
656
texts = [[l.strip() for l in t.split('\n')] for t in rawtexts]
657
658
k = Weave()
659
parents = set()
660
i = 0
661
for t in texts:
662
ver = k.add('text%d' % i,
663
list(parents), t)
664
parents.add(ver)
665
i += 1
666
667
self.log("k._weave=" + pformat(k._weave))
668
669
for i, t in enumerate(texts):
670
self.assertEqual(k.get(i), t)
671
672
self.check_read_write(k)
673
674
675
676
class MergeCases(TestBase):
677
def doMerge(self, base, a, b, mp):
678
from cStringIO import StringIO
679
from textwrap import dedent
680
681
def addcrlf(x):
682
return x + '\n'
683
684
w = Weave()
685
w.add('text0', [], map(addcrlf, base))
686
w.add('text1', [0], map(addcrlf, a))
687
w.add('text2', [0], map(addcrlf, b))
688
689
self.log('weave is:')
690
tmpf = StringIO()
691
write_weave(w, tmpf)
692
self.log(tmpf.getvalue())
693
694
self.log('merge plan:')
695
p = list(w.plan_merge(1, 2))
696
for state, line in p:
697
if line:
698
self.log('%12s | %s' % (state, line[:-1]))
699
700
self.log('merge:')
701
mt = StringIO()
702
mt.writelines(w.weave_merge(p))
703
mt.seek(0)
704
self.log(mt.getvalue())
705
706
mp = map(addcrlf, mp)
707
self.assertEqual(mt.readlines(), mp)
708
709
710
def testOneInsert(self):
711
self.doMerge([],
712
['aa'],
713
[],
714
['aa'])
715
716
def testSeparateInserts(self):
717
self.doMerge(['aaa', 'bbb', 'ccc'],
718
['aaa', 'xxx', 'bbb', 'ccc'],
719
['aaa', 'bbb', 'yyy', 'ccc'],
720
['aaa', 'xxx', 'bbb', 'yyy', 'ccc'])
721
722
def testSameInsert(self):
723
self.doMerge(['aaa', 'bbb', 'ccc'],
724
['aaa', 'xxx', 'bbb', 'ccc'],
725
['aaa', 'xxx', 'bbb', 'yyy', 'ccc'],
726
['aaa', 'xxx', 'bbb', 'yyy', 'ccc'])
727
728
def testOverlappedInsert(self):
729
self.doMerge(['aaa', 'bbb'],
730
['aaa', 'xxx', 'yyy', 'bbb'],
731
['aaa', 'xxx', 'bbb'],
732
['aaa', '<<<<', 'xxx', 'yyy', '====', 'xxx', '>>>>', 'bbb'])
733
734
# really it ought to reduce this to
735
# ['aaa', 'xxx', 'yyy', 'bbb']
736
737
738
def testClashReplace(self):
739
self.doMerge(['aaa'],
740
['xxx'],
741
['yyy', 'zzz'],
742
['<<<<', 'xxx', '====', 'yyy', 'zzz', '>>>>'])
743
744
def testNonClashInsert(self):
745
self.doMerge(['aaa'],
746
['xxx', 'aaa'],
747
['yyy', 'zzz'],
748
['<<<<', 'xxx', 'aaa', '====', 'yyy', 'zzz', '>>>>'])
749
750
self.doMerge(['aaa'],
751
['aaa'],
752
['yyy', 'zzz'],
753
['yyy', 'zzz'])
754
755
756
def testDeleteAndModify(self):
757
"""Clashing delete and modification.
758
759
If one side modifies a region and the other deletes it then
760
there should be a conflict with one side blank.
761
"""
762
763
#######################################
764
# skippd, not working yet
765
return
766
767
self.doMerge(['aaa', 'bbb', 'ccc'],
768
['aaa', 'ddd', 'ccc'],
769
['aaa', 'ccc'],
770
['<<<<', 'aaa', '====', '>>>>', 'ccc'])
771
772
773
774
def testweave():
775
import testsweet
776
from unittest import TestSuite, TestLoader
777
import testweave
778
779
tl = TestLoader()
780
suite = TestSuite()
781
suite.addTest(tl.loadTestsFromModule(testweave))
782
783
return int(not testsweet.run_suite(suite)) # for shell 0=true
784
785
786
if __name__ == '__main__':
787
import sys
788
sys.exit(testweave())
789
Loggerhead is a web-based interface for Breezy
Version: 2.0.1