320
277
"""Tests for getting and putting knit records."""
322
279
def test_add_raw_records(self):
323
"""add_raw_records adds records retrievable later."""
324
access = self.get_access()
325
memos = access.add_raw_records([(b'key', 10)], [b'1234567890'])
326
self.assertEqual([b'1234567890'], list(access.get_raw_records(memos)))
328
def test_add_raw_record(self):
329
"""add_raw_record adds records retrievable later."""
330
access = self.get_access()
331
memos = access.add_raw_record(b'key', 10, [b'1234567890'])
332
self.assertEqual([b'1234567890'], list(access.get_raw_records([memos])))
280
"""Add_raw_records adds records retrievable later."""
281
access = self.get_access()
282
memos = access.add_raw_records([('key', 10)], '1234567890')
283
self.assertEqual(['1234567890'], list(access.get_raw_records(memos)))
334
285
def test_add_several_raw_records(self):
335
286
"""add_raw_records with many records and read some back."""
336
287
access = self.get_access()
337
memos = access.add_raw_records([(b'key', 10), (b'key2', 2), (b'key3', 5)],
338
[b'12345678901234567'])
339
self.assertEqual([b'1234567890', b'12', b'34567'],
340
list(access.get_raw_records(memos)))
341
self.assertEqual([b'1234567890'],
342
list(access.get_raw_records(memos[0:1])))
343
self.assertEqual([b'12'],
344
list(access.get_raw_records(memos[1:2])))
345
self.assertEqual([b'34567'],
346
list(access.get_raw_records(memos[2:3])))
347
self.assertEqual([b'1234567890', b'34567'],
348
list(access.get_raw_records(memos[0:1] + memos[2:3])))
288
memos = access.add_raw_records([('key', 10), ('key2', 2), ('key3', 5)],
290
self.assertEqual(['1234567890', '12', '34567'],
291
list(access.get_raw_records(memos)))
292
self.assertEqual(['1234567890'],
293
list(access.get_raw_records(memos[0:1])))
294
self.assertEqual(['12'],
295
list(access.get_raw_records(memos[1:2])))
296
self.assertEqual(['34567'],
297
list(access.get_raw_records(memos[2:3])))
298
self.assertEqual(['1234567890', '34567'],
299
list(access.get_raw_records(memos[0:1] + memos[2:3])))
351
302
class TestKnitKnitAccess(TestCaseWithMemoryTransport, KnitRecordAccessTestsMixin):
493
414
raise _TestException('foobar')
494
except _TestException as e:
415
except _TestException, e:
495
416
retry_exc = errors.RetryWithNewPacks(None, reload_occurred=False,
496
417
exc_info=sys.exc_info())
497
# GZ 2010-08-10: Cycle with exc_info affects 3 tests
500
420
def test_read_from_several_packs(self):
501
421
access, writer = self._get_access()
503
memos.extend(access.add_raw_records([(b'key', 10)], [b'1234567890']))
423
memos.extend(access.add_raw_records([('key', 10)], '1234567890'))
505
425
access, writer = self._get_access('pack2', 'FOOBAR')
506
memos.extend(access.add_raw_records([(b'key', 5)], [b'12345']))
426
memos.extend(access.add_raw_records([('key', 5)], '12345'))
508
428
access, writer = self._get_access('pack3', 'BAZ')
509
memos.extend(access.add_raw_records([(b'key', 5)], [b'alpha']))
429
memos.extend(access.add_raw_records([('key', 5)], 'alpha'))
511
431
transport = self.get_transport()
512
access = pack_repo._DirectPackAccess({"FOO": (transport, 'packfile'),
513
"FOOBAR": (transport, 'pack2'),
514
"BAZ": (transport, 'pack3')})
515
self.assertEqual([b'1234567890', b'12345', b'alpha'],
516
list(access.get_raw_records(memos)))
517
self.assertEqual([b'1234567890'],
518
list(access.get_raw_records(memos[0:1])))
519
self.assertEqual([b'12345'],
520
list(access.get_raw_records(memos[1:2])))
521
self.assertEqual([b'alpha'],
522
list(access.get_raw_records(memos[2:3])))
523
self.assertEqual([b'1234567890', b'alpha'],
524
list(access.get_raw_records(memos[0:1] + memos[2:3])))
432
access = _DirectPackAccess({"FOO":(transport, 'packfile'),
433
"FOOBAR":(transport, 'pack2'),
434
"BAZ":(transport, 'pack3')})
435
self.assertEqual(['1234567890', '12345', 'alpha'],
436
list(access.get_raw_records(memos)))
437
self.assertEqual(['1234567890'],
438
list(access.get_raw_records(memos[0:1])))
439
self.assertEqual(['12345'],
440
list(access.get_raw_records(memos[1:2])))
441
self.assertEqual(['alpha'],
442
list(access.get_raw_records(memos[2:3])))
443
self.assertEqual(['1234567890', 'alpha'],
444
list(access.get_raw_records(memos[0:1] + memos[2:3])))
526
446
def test_set_writer(self):
527
447
"""The writer should be settable post construction."""
528
access = pack_repo._DirectPackAccess({})
448
access = _DirectPackAccess({})
529
449
transport = self.get_transport()
530
450
packname = 'packfile'
533
452
def write_data(bytes):
534
453
transport.append_bytes(packname, bytes)
535
454
writer = pack.ContainerWriter(write_data)
537
456
access.set_writer(writer, index, (transport, packname))
538
memos = access.add_raw_records([(b'key', 10)], [b'1234567890'])
457
memos = access.add_raw_records([('key', 10)], '1234567890')
540
self.assertEqual([b'1234567890'], list(access.get_raw_records(memos)))
459
self.assertEqual(['1234567890'], list(access.get_raw_records(memos)))
542
461
def test_missing_index_raises_retry(self):
543
462
memos = self.make_pack_file()
544
463
transport = self.get_transport()
545
464
reload_called, reload_func = self.make_reload_func()
546
465
# Note that the index key has changed from 'foo' to 'bar'
547
access = pack_repo._DirectPackAccess({'bar': (transport, 'packname')},
548
reload_func=reload_func)
466
access = _DirectPackAccess({'bar':(transport, 'packname')},
467
reload_func=reload_func)
549
468
e = self.assertListRaises(errors.RetryWithNewPacks,
550
469
access.get_raw_records, memos)
551
470
# Because a key was passed in which does not match our index list, we
616
532
memos = self.make_pack_file()
617
533
transport = self.get_transport()
618
534
failing_transport = MockReadvFailingTransport(
619
[transport.get_bytes('packname')])
535
[transport.get_bytes('packname')])
620
536
reload_called, reload_func = self.make_reload_func()
621
access = pack_repo._DirectPackAccess(
622
{'foo': (failing_transport, 'packname')})
537
access = _DirectPackAccess({'foo':(failing_transport, 'packname')})
623
538
# Asking for a single record will not trigger the Mock failure
624
self.assertEqual([b'1234567890'],
625
list(access.get_raw_records(memos[:1])))
626
self.assertEqual([b'12345'],
627
list(access.get_raw_records(memos[1:2])))
539
self.assertEqual(['1234567890'],
540
list(access.get_raw_records(memos[:1])))
541
self.assertEqual(['12345'],
542
list(access.get_raw_records(memos[1:2])))
628
543
# A multiple offset readv() will fail mid-way through
629
544
e = self.assertListRaises(errors.NoSuchFile,
630
545
access.get_raw_records, memos)
632
547
def test_reload_or_raise_no_reload(self):
633
access = pack_repo._DirectPackAccess({}, reload_func=None)
548
access = _DirectPackAccess({}, reload_func=None)
634
549
retry_exc = self.make_retry_exception()
635
550
# Without a reload_func, we will just re-raise the original exception
636
551
self.assertRaises(_TestException, access.reload_or_raise, retry_exc)
638
553
def test_reload_or_raise_reload_changed(self):
639
554
reload_called, reload_func = self.make_reload_func(return_val=True)
640
access = pack_repo._DirectPackAccess({}, reload_func=reload_func)
555
access = _DirectPackAccess({}, reload_func=reload_func)
641
556
retry_exc = self.make_retry_exception()
642
557
access.reload_or_raise(retry_exc)
643
558
self.assertEqual([1], reload_called)
644
retry_exc.reload_occurred = True
559
retry_exc.reload_occurred=True
645
560
access.reload_or_raise(retry_exc)
646
561
self.assertEqual([2], reload_called)
648
563
def test_reload_or_raise_reload_no_change(self):
649
564
reload_called, reload_func = self.make_reload_func(return_val=False)
650
access = pack_repo._DirectPackAccess({}, reload_func=reload_func)
565
access = _DirectPackAccess({}, reload_func=reload_func)
651
566
retry_exc = self.make_retry_exception()
652
567
# If reload_occurred is False, then we consider it an error to have
653
568
# reload_func() return False (no changes).
654
569
self.assertRaises(_TestException, access.reload_or_raise, retry_exc)
655
570
self.assertEqual([1], reload_called)
656
retry_exc.reload_occurred = True
571
retry_exc.reload_occurred=True
657
572
# If reload_occurred is True, then we assume nothing changed because
658
573
# it had changed earlier, but didn't change again
659
574
access.reload_or_raise(retry_exc)
663
578
vf, reload_counter = self.make_vf_for_retrying()
664
579
# It is a little bit bogus to annotate the Revision VF, but it works,
665
580
# as we have ancestry stored there
667
582
reload_lines = vf.annotate(key)
668
583
self.assertEqual([1, 1, 0], reload_counter)
669
584
plain_lines = vf.annotate(key)
670
self.assertEqual([1, 1, 0], reload_counter) # No extra reloading
585
self.assertEqual([1, 1, 0], reload_counter) # No extra reloading
671
586
if reload_lines != plain_lines:
672
587
self.fail('Annotation was not identical with reloading.')
673
588
# Now delete the packs-in-use, which should trigger another reload, but
674
589
# this time we just raise an exception because we can't recover
675
for trans, name in vf._access._indices.values():
590
for trans, name in vf._access._indices.itervalues():
676
591
trans.delete(name)
677
592
self.assertRaises(errors.NoSuchFile, vf.annotate, key)
678
593
self.assertEqual([2, 1, 1], reload_counter)
680
595
def test__get_record_map_retries(self):
681
596
vf, reload_counter = self.make_vf_for_retrying()
682
keys = [(b'rev-1',), (b'rev-2',), (b'rev-3',)]
597
keys = [('rev-1',), ('rev-2',), ('rev-3',)]
683
598
records = vf._get_record_map(keys)
684
599
self.assertEqual(keys, sorted(records.keys()))
685
600
self.assertEqual([1, 1, 0], reload_counter)
686
601
# Now delete the packs-in-use, which should trigger another reload, but
687
602
# this time we just raise an exception because we can't recover
688
for trans, name in vf._access._indices.values():
603
for trans, name in vf._access._indices.itervalues():
689
604
trans.delete(name)
690
605
self.assertRaises(errors.NoSuchFile, vf._get_record_map, keys)
691
606
self.assertEqual([2, 1, 1], reload_counter)
693
608
def test_get_record_stream_retries(self):
694
609
vf, reload_counter = self.make_vf_for_retrying()
695
keys = [(b'rev-1',), (b'rev-2',), (b'rev-3',)]
610
keys = [('rev-1',), ('rev-2',), ('rev-3',)]
696
611
record_stream = vf.get_record_stream(keys, 'topological', False)
697
record = next(record_stream)
698
self.assertEqual((b'rev-1',), record.key)
612
record = record_stream.next()
613
self.assertEqual(('rev-1',), record.key)
699
614
self.assertEqual([0, 0, 0], reload_counter)
700
record = next(record_stream)
701
self.assertEqual((b'rev-2',), record.key)
615
record = record_stream.next()
616
self.assertEqual(('rev-2',), record.key)
702
617
self.assertEqual([1, 1, 0], reload_counter)
703
record = next(record_stream)
704
self.assertEqual((b'rev-3',), record.key)
618
record = record_stream.next()
619
self.assertEqual(('rev-3',), record.key)
705
620
self.assertEqual([1, 1, 0], reload_counter)
706
621
# Now delete all pack files, and see that we raise the right error
707
for trans, name in vf._access._indices.values():
622
for trans, name in vf._access._indices.itervalues():
708
623
trans.delete(name)
709
624
self.assertListRaises(errors.NoSuchFile,
710
vf.get_record_stream, keys, 'topological', False)
625
vf.get_record_stream, keys, 'topological', False)
712
627
def test_iter_lines_added_or_present_in_keys_retries(self):
713
628
vf, reload_counter = self.make_vf_for_retrying()
714
keys = [(b'rev-1',), (b'rev-2',), (b'rev-3',)]
629
keys = [('rev-1',), ('rev-2',), ('rev-3',)]
715
630
# Unfortunately, iter_lines_added_or_present_in_keys iterates the
716
631
# result in random order (determined by the iteration order from a
717
632
# set()), so we don't have any solid way to trigger whether data is
742
657
self.addCleanup(repo.unlock)
743
658
repo.start_write_group()
745
vf.add_lines((b'f-id', b'rev-5'), [(b'f-id', b'rev-4')], [b'lines\n'])
746
vf.add_lines((b'f-id', b'rev-1'), [], [b'lines\n'])
747
vf.add_lines((b'f-id', b'rev-2'), [(b'f-id', b'rev-1')], [b'lines\n'])
660
vf.add_lines(('f-id', 'rev-5'), [('f-id', 'rev-4')], ['lines\n'])
661
vf.add_lines(('f-id', 'rev-1'), [], ['lines\n'])
662
vf.add_lines(('f-id', 'rev-2'), [('f-id', 'rev-1')], ['lines\n'])
748
663
repo.commit_write_group()
749
664
# We inserted them as rev-5, rev-1, rev-2, we should get them back in
751
stream = vf.get_record_stream([(b'f-id', b'rev-1'), (b'f-id', b'rev-5'),
752
(b'f-id', b'rev-2')], 'unordered', False)
666
stream = vf.get_record_stream([('f-id', 'rev-1'), ('f-id', 'rev-5'),
667
('f-id', 'rev-2')], 'unordered', False)
753
668
keys = [r.key for r in stream]
754
self.assertEqual([(b'f-id', b'rev-5'), (b'f-id', b'rev-1'),
755
(b'f-id', b'rev-2')], keys)
669
self.assertEqual([('f-id', 'rev-5'), ('f-id', 'rev-1'),
670
('f-id', 'rev-2')], keys)
756
671
repo.start_write_group()
757
vf.add_lines((b'f-id', b'rev-4'), [(b'f-id', b'rev-3')], [b'lines\n'])
758
vf.add_lines((b'f-id', b'rev-3'), [(b'f-id', b'rev-2')], [b'lines\n'])
759
vf.add_lines((b'f-id', b'rev-6'), [(b'f-id', b'rev-5')], [b'lines\n'])
672
vf.add_lines(('f-id', 'rev-4'), [('f-id', 'rev-3')], ['lines\n'])
673
vf.add_lines(('f-id', 'rev-3'), [('f-id', 'rev-2')], ['lines\n'])
674
vf.add_lines(('f-id', 'rev-6'), [('f-id', 'rev-5')], ['lines\n'])
760
675
repo.commit_write_group()
761
676
# Request in random order, to make sure the output order isn't based on
763
request_keys = set((b'f-id', b'rev-%d' % i) for i in range(1, 7))
678
request_keys = set(('f-id', 'rev-%d' % i) for i in range(1, 7))
764
679
stream = vf.get_record_stream(request_keys, 'unordered', False)
765
680
keys = [r.key for r in stream]
766
681
# We want to get the keys back in disk order, but it doesn't matter
767
682
# which pack we read from first. So this can come back in 2 orders
768
alt1 = [(b'f-id', b'rev-%d' % i) for i in [4, 3, 6, 5, 1, 2]]
769
alt2 = [(b'f-id', b'rev-%d' % i) for i in [5, 1, 2, 4, 3, 6]]
683
alt1 = [('f-id', 'rev-%d' % i) for i in [4, 3, 6, 5, 1, 2]]
684
alt2 = [('f-id', 'rev-%d' % i) for i in [5, 1, 2, 4, 3, 6]]
770
685
if keys != alt1 and keys != alt2:
771
686
self.fail('Returned key order did not match either expected order.'
772
687
' expected %s or %s, not %s'
776
691
class LowLevelKnitDataTests(TestCase):
778
693
def create_gz_content(self, text):
780
with gzip.GzipFile(mode='wb', fileobj=sio) as gz_file:
695
gz_file = tuned_gzip.GzipFile(mode='wb', fileobj=sio)
782
698
return sio.getvalue()
784
700
def make_multiple_records(self):
785
701
"""Create the content for multiple records."""
786
sha1sum = osutils.sha_string(b'foo\nbar\n')
702
sha1sum = osutils.sha('foo\nbar\n').hexdigest()
788
gz_txt = self.create_gz_content(b'version rev-id-1 2 %s\n'
704
gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
793
709
record_1 = (0, len(gz_txt), sha1sum)
794
710
total_txt.append(gz_txt)
795
sha1sum = osutils.sha_string(b'baz\n')
796
gz_txt = self.create_gz_content(b'version rev-id-2 1 %s\n'
711
sha1sum = osutils.sha('baz\n').hexdigest()
712
gz_txt = self.create_gz_content('version rev-id-2 1 %s\n'
800
716
record_2 = (record_1[1], len(gz_txt), sha1sum)
801
717
total_txt.append(gz_txt)
802
718
return total_txt, record_1, record_2
804
720
def test_valid_knit_data(self):
805
sha1sum = osutils.sha_string(b'foo\nbar\n')
806
gz_txt = self.create_gz_content(b'version rev-id-1 2 %s\n'
721
sha1sum = osutils.sha('foo\nbar\n').hexdigest()
722
gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
811
727
transport = MockTransport([gz_txt])
812
728
access = _KnitKeyAccess(transport, ConstantMapper('filename'))
813
729
knit = KnitVersionedFiles(None, access)
814
records = [((b'rev-id-1',), ((b'rev-id-1',), 0, len(gz_txt)))]
730
records = [(('rev-id-1',), (('rev-id-1',), 0, len(gz_txt)))]
816
732
contents = list(knit._read_records_iter(records))
817
self.assertEqual([((b'rev-id-1',), [b'foo\n', b'bar\n'],
818
b'4e48e2c9a3d2ca8a708cb0cc545700544efb5021')], contents)
733
self.assertEqual([(('rev-id-1',), ['foo\n', 'bar\n'],
734
'4e48e2c9a3d2ca8a708cb0cc545700544efb5021')], contents)
820
736
raw_contents = list(knit._read_records_iter_raw(records))
821
self.assertEqual([((b'rev-id-1',), gz_txt, sha1sum)], raw_contents)
737
self.assertEqual([(('rev-id-1',), gz_txt, sha1sum)], raw_contents)
823
739
def test_multiple_records_valid(self):
824
740
total_txt, record_1, record_2 = self.make_multiple_records()
825
transport = MockTransport([b''.join(total_txt)])
741
transport = MockTransport([''.join(total_txt)])
826
742
access = _KnitKeyAccess(transport, ConstantMapper('filename'))
827
743
knit = KnitVersionedFiles(None, access)
828
records = [((b'rev-id-1',), ((b'rev-id-1',), record_1[0], record_1[1])),
829
((b'rev-id-2',), ((b'rev-id-2',), record_2[0], record_2[1]))]
744
records = [(('rev-id-1',), (('rev-id-1',), record_1[0], record_1[1])),
745
(('rev-id-2',), (('rev-id-2',), record_2[0], record_2[1]))]
831
747
contents = list(knit._read_records_iter(records))
832
self.assertEqual([((b'rev-id-1',), [b'foo\n', b'bar\n'], record_1[2]),
833
((b'rev-id-2',), [b'baz\n'], record_2[2])],
748
self.assertEqual([(('rev-id-1',), ['foo\n', 'bar\n'], record_1[2]),
749
(('rev-id-2',), ['baz\n'], record_2[2])],
836
752
raw_contents = list(knit._read_records_iter_raw(records))
837
self.assertEqual([((b'rev-id-1',), total_txt[0], record_1[2]),
838
((b'rev-id-2',), total_txt[1], record_2[2])],
753
self.assertEqual([(('rev-id-1',), total_txt[0], record_1[2]),
754
(('rev-id-2',), total_txt[1], record_2[2])],
841
757
def test_not_enough_lines(self):
842
sha1sum = osutils.sha_string(b'foo\n')
758
sha1sum = osutils.sha('foo\n').hexdigest()
843
759
# record says 2 lines data says 1
844
gz_txt = self.create_gz_content(b'version rev-id-1 2 %s\n'
760
gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
848
764
transport = MockTransport([gz_txt])
849
765
access = _KnitKeyAccess(transport, ConstantMapper('filename'))
850
766
knit = KnitVersionedFiles(None, access)
851
records = [((b'rev-id-1',), ((b'rev-id-1',), 0, len(gz_txt)))]
852
self.assertRaises(KnitCorrupt, list,
853
knit._read_records_iter(records))
767
records = [(('rev-id-1',), (('rev-id-1',), 0, len(gz_txt)))]
768
self.assertRaises(errors.KnitCorrupt, list,
769
knit._read_records_iter(records))
855
771
# read_records_iter_raw won't detect that sort of mismatch/corruption
856
772
raw_contents = list(knit._read_records_iter_raw(records))
857
self.assertEqual([((b'rev-id-1',), gz_txt, sha1sum)], raw_contents)
773
self.assertEqual([(('rev-id-1',), gz_txt, sha1sum)], raw_contents)
859
775
def test_too_many_lines(self):
860
sha1sum = osutils.sha_string(b'foo\nbar\n')
776
sha1sum = osutils.sha('foo\nbar\n').hexdigest()
861
777
# record says 1 lines data says 2
862
gz_txt = self.create_gz_content(b'version rev-id-1 1 %s\n'
778
gz_txt = self.create_gz_content('version rev-id-1 1 %s\n'
867
783
transport = MockTransport([gz_txt])
868
784
access = _KnitKeyAccess(transport, ConstantMapper('filename'))
869
785
knit = KnitVersionedFiles(None, access)
870
records = [((b'rev-id-1',), ((b'rev-id-1',), 0, len(gz_txt)))]
871
self.assertRaises(KnitCorrupt, list,
872
knit._read_records_iter(records))
786
records = [(('rev-id-1',), (('rev-id-1',), 0, len(gz_txt)))]
787
self.assertRaises(errors.KnitCorrupt, list,
788
knit._read_records_iter(records))
874
790
# read_records_iter_raw won't detect that sort of mismatch/corruption
875
791
raw_contents = list(knit._read_records_iter_raw(records))
876
self.assertEqual([((b'rev-id-1',), gz_txt, sha1sum)], raw_contents)
792
self.assertEqual([(('rev-id-1',), gz_txt, sha1sum)], raw_contents)
878
794
def test_mismatched_version_id(self):
879
sha1sum = osutils.sha_string(b'foo\nbar\n')
880
gz_txt = self.create_gz_content(b'version rev-id-1 2 %s\n'
795
sha1sum = osutils.sha('foo\nbar\n').hexdigest()
796
gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
885
801
transport = MockTransport([gz_txt])
886
802
access = _KnitKeyAccess(transport, ConstantMapper('filename'))
887
803
knit = KnitVersionedFiles(None, access)
888
804
# We are asking for rev-id-2, but the data is rev-id-1
889
records = [((b'rev-id-2',), ((b'rev-id-2',), 0, len(gz_txt)))]
890
self.assertRaises(KnitCorrupt, list,
891
knit._read_records_iter(records))
805
records = [(('rev-id-2',), (('rev-id-2',), 0, len(gz_txt)))]
806
self.assertRaises(errors.KnitCorrupt, list,
807
knit._read_records_iter(records))
893
809
# read_records_iter_raw detects mismatches in the header
894
self.assertRaises(KnitCorrupt, list,
895
knit._read_records_iter_raw(records))
810
self.assertRaises(errors.KnitCorrupt, list,
811
knit._read_records_iter_raw(records))
897
813
def test_uncompressed_data(self):
898
sha1sum = osutils.sha_string(b'foo\nbar\n')
899
txt = (b'version rev-id-1 2 %s\n'
814
sha1sum = osutils.sha('foo\nbar\n').hexdigest()
815
txt = ('version rev-id-1 2 %s\n'
904
820
transport = MockTransport([txt])
905
821
access = _KnitKeyAccess(transport, ConstantMapper('filename'))
906
822
knit = KnitVersionedFiles(None, access)
907
records = [((b'rev-id-1',), ((b'rev-id-1',), 0, len(txt)))]
823
records = [(('rev-id-1',), (('rev-id-1',), 0, len(txt)))]
909
825
# We don't have valid gzip data ==> corrupt
910
self.assertRaises(KnitCorrupt, list,
911
knit._read_records_iter(records))
826
self.assertRaises(errors.KnitCorrupt, list,
827
knit._read_records_iter(records))
913
829
# read_records_iter_raw will notice the bad data
914
self.assertRaises(KnitCorrupt, list,
915
knit._read_records_iter_raw(records))
830
self.assertRaises(errors.KnitCorrupt, list,
831
knit._read_records_iter_raw(records))
917
833
def test_corrupted_data(self):
918
sha1sum = osutils.sha_string(b'foo\nbar\n')
919
gz_txt = self.create_gz_content(b'version rev-id-1 2 %s\n'
834
sha1sum = osutils.sha('foo\nbar\n').hexdigest()
835
gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
924
840
# Change 2 bytes in the middle to \xff
925
gz_txt = gz_txt[:10] + b'\xff\xff' + gz_txt[12:]
841
gz_txt = gz_txt[:10] + '\xff\xff' + gz_txt[12:]
926
842
transport = MockTransport([gz_txt])
927
843
access = _KnitKeyAccess(transport, ConstantMapper('filename'))
928
844
knit = KnitVersionedFiles(None, access)
929
records = [((b'rev-id-1',), ((b'rev-id-1',), 0, len(gz_txt)))]
930
self.assertRaises(KnitCorrupt, list,
931
knit._read_records_iter(records))
845
records = [(('rev-id-1',), (('rev-id-1',), 0, len(gz_txt)))]
846
self.assertRaises(errors.KnitCorrupt, list,
847
knit._read_records_iter(records))
932
848
# read_records_iter_raw will barf on bad gz data
933
self.assertRaises(KnitCorrupt, list,
934
knit._read_records_iter_raw(records))
849
self.assertRaises(errors.KnitCorrupt, list,
850
knit._read_records_iter_raw(records))
937
853
class LowLevelKnitIndexTests(TestCase):
940
def _load_data(self):
941
from ..bzr._knit_load_data_py import _load_data_py
944
855
def get_knit_index(self, transport, name, mode):
945
856
mapper = ConstantMapper(name)
946
self.overrideAttr(knit, '_load_data', self._load_data)
950
return _KndxIndex(transport, mapper, lambda: None, allow_writes, lambda: True)
857
from bzrlib._knit_load_data_py import _load_data_py
858
self.overrideAttr(knit, '_load_data', _load_data_py)
859
allow_writes = lambda: 'w' in mode
860
return _KndxIndex(transport, mapper, lambda:None, allow_writes, lambda:True)
952
862
def test_create_file(self):
953
863
transport = MockTransport()
954
864
index = self.get_knit_index(transport, "filename", "w")
956
866
call = transport.calls.pop(0)
957
# call[1][1] is a BytesIO - we can't test it by simple equality.
867
# call[1][1] is a StringIO - we can't test it by simple equality.
958
868
self.assertEqual('put_file_non_atomic', call[0])
959
869
self.assertEqual('filename.kndx', call[1][0])
960
870
# With no history, _KndxIndex writes a new index:
961
871
self.assertEqual(_KndxIndex.HEADER,
962
call[1][1].getvalue())
872
call[1][1].getvalue())
963
873
self.assertEqual({'create_parent_dir': True}, call[2])
965
875
def test_read_utf8_version_id(self):
981
891
utf8_revision_id = unicode_revision_id.encode('utf-8')
982
892
transport = MockTransport([
983
893
_KndxIndex.HEADER,
984
b"version option 0 1 .%s :" % (utf8_revision_id,)
894
"version option 0 1 .%s :" % (utf8_revision_id,)
986
896
index = self.get_knit_index(transport, "filename", "r")
987
self.assertEqual({(b"version",): ((utf8_revision_id,),)},
988
index.get_parent_map(index.keys()))
897
self.assertEqual({("version",):((utf8_revision_id,),)},
898
index.get_parent_map(index.keys()))
990
900
def test_read_ignore_corrupted_lines(self):
991
901
transport = MockTransport([
992
902
_KndxIndex.HEADER,
994
b"corrupted options 0 1 .b .c ",
995
b"version options 0 1 :"
904
"corrupted options 0 1 .b .c ",
905
"version options 0 1 :"
997
907
index = self.get_knit_index(transport, "filename", "r")
998
908
self.assertEqual(1, len(index.keys()))
999
self.assertEqual({(b"version",)}, index.keys())
909
self.assertEqual(set([("version",)]), index.keys())
1001
911
def test_read_corrupted_header(self):
1002
transport = MockTransport([b'not a bzr knit index header\n'])
912
transport = MockTransport(['not a bzr knit index header\n'])
1003
913
index = self.get_knit_index(transport, "filename", "r")
1004
914
self.assertRaises(KnitHeaderError, index.keys)
1006
916
def test_read_duplicate_entries(self):
1007
917
transport = MockTransport([
1008
918
_KndxIndex.HEADER,
1009
b"parent options 0 1 :",
1010
b"version options1 0 1 0 :",
1011
b"version options2 1 2 .other :",
1012
b"version options3 3 4 0 .other :"
919
"parent options 0 1 :",
920
"version options1 0 1 0 :",
921
"version options2 1 2 .other :",
922
"version options3 3 4 0 .other :"
1014
924
index = self.get_knit_index(transport, "filename", "r")
1015
925
self.assertEqual(2, len(index.keys()))
1016
926
# check that the index used is the first one written. (Specific
1017
927
# to KnitIndex style indices.
1018
self.assertEqual(b"1", index._dictionary_compress([(b"version",)]))
1019
self.assertEqual(((b"version",), 3, 4),
1020
index.get_position((b"version",)))
1021
self.assertEqual([b"options3"], index.get_options((b"version",)))
1022
self.assertEqual({(b"version",): ((b"parent",), (b"other",))},
1023
index.get_parent_map([(b"version",)]))
928
self.assertEqual("1", index._dictionary_compress([("version",)]))
929
self.assertEqual((("version",), 3, 4), index.get_position(("version",)))
930
self.assertEqual(["options3"], index.get_options(("version",)))
931
self.assertEqual({("version",):(("parent",), ("other",))},
932
index.get_parent_map([("version",)]))
1025
934
def test_read_compressed_parents(self):
1026
935
transport = MockTransport([
1027
936
_KndxIndex.HEADER,
1029
b"b option 0 1 0 :",
1030
b"c option 0 1 1 0 :",
939
"c option 0 1 1 0 :",
1032
941
index = self.get_knit_index(transport, "filename", "r")
1033
self.assertEqual({(b"b",): ((b"a",),), (b"c",): ((b"b",), (b"a",))},
1034
index.get_parent_map([(b"b",), (b"c",)]))
942
self.assertEqual({("b",):(("a",),), ("c",):(("b",), ("a",))},
943
index.get_parent_map([("b",), ("c",)]))
1036
945
def test_write_utf8_version_id(self):
1037
946
unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
1080
989
self.assertEqual(set(), index.keys())
1082
index.add_records([((b"a",), [b"option"], ((b"a",), 0, 1), [])])
1083
self.assertEqual({(b"a",)}, index.keys())
1085
index.add_records([((b"a",), [b"option"], ((b"a",), 0, 1), [])])
1086
self.assertEqual({(b"a",)}, index.keys())
1088
index.add_records([((b"b",), [b"option"], ((b"b",), 0, 1), [])])
1089
self.assertEqual({(b"a",), (b"b",)}, index.keys())
991
index.add_records([(("a",), ["option"], (("a",), 0, 1), [])])
992
self.assertEqual(set([("a",)]), index.keys())
994
index.add_records([(("a",), ["option"], (("a",), 0, 1), [])])
995
self.assertEqual(set([("a",)]), index.keys())
997
index.add_records([(("b",), ["option"], (("b",), 0, 1), [])])
998
self.assertEqual(set([("a",), ("b",)]), index.keys())
1091
1000
def add_a_b(self, index, random_id=None):
1093
1002
if random_id is not None:
1094
1003
kwargs["random_id"] = random_id
1095
1004
index.add_records([
1096
((b"a",), [b"option"], ((b"a",), 0, 1), [(b"b",)]),
1097
((b"a",), [b"opt"], ((b"a",), 1, 2), [(b"c",)]),
1098
((b"b",), [b"option"], ((b"b",), 2, 3), [(b"a",)])
1005
(("a",), ["option"], (("a",), 0, 1), [("b",)]),
1006
(("a",), ["opt"], (("a",), 1, 2), [("c",)]),
1007
(("b",), ["option"], (("b",), 2, 3), [("a",)])
1101
1010
def assertIndexIsAB(self, index):
1102
1011
self.assertEqual({
1103
(b'a',): ((b'c',),),
1104
(b'b',): ((b'a',),),
1106
1015
index.get_parent_map(index.keys()))
1107
self.assertEqual(((b"a",), 1, 2), index.get_position((b"a",)))
1108
self.assertEqual(((b"b",), 2, 3), index.get_position((b"b",)))
1109
self.assertEqual([b"opt"], index.get_options((b"a",)))
1016
self.assertEqual((("a",), 1, 2), index.get_position(("a",)))
1017
self.assertEqual((("b",), 2, 3), index.get_position(("b",)))
1018
self.assertEqual(["opt"], index.get_options(("a",)))
1111
1020
def test_add_versions(self):
1112
1021
transport = MockTransport([
1175
1084
def test__get_total_build_size(self):
1177
(b'a',): (('fulltext', False), ((b'a',), 0, 100), None),
1178
(b'b',): (('line-delta', False), ((b'b',), 100, 21), (b'a',)),
1179
(b'c',): (('line-delta', False), ((b'c',), 121, 35), (b'b',)),
1180
(b'd',): (('line-delta', False), ((b'd',), 156, 12), (b'b',)),
1086
('a',): (('fulltext', False), (('a',), 0, 100), None),
1087
('b',): (('line-delta', False), (('b',), 100, 21), ('a',)),
1088
('c',): (('line-delta', False), (('c',), 121, 35), ('b',)),
1089
('d',): (('line-delta', False), (('d',), 156, 12), ('b',)),
1182
self.assertTotalBuildSize(100, [(b'a',)], positions)
1183
self.assertTotalBuildSize(121, [(b'b',)], positions)
1091
self.assertTotalBuildSize(100, [('a',)], positions)
1092
self.assertTotalBuildSize(121, [('b',)], positions)
1184
1093
# c needs both a & b
1185
self.assertTotalBuildSize(156, [(b'c',)], positions)
1094
self.assertTotalBuildSize(156, [('c',)], positions)
1186
1095
# we shouldn't count 'b' twice
1187
self.assertTotalBuildSize(156, [(b'b',), (b'c',)], positions)
1188
self.assertTotalBuildSize(133, [(b'd',)], positions)
1189
self.assertTotalBuildSize(168, [(b'c',), (b'd',)], positions)
1096
self.assertTotalBuildSize(156, [('b',), ('c',)], positions)
1097
self.assertTotalBuildSize(133, [('d',)], positions)
1098
self.assertTotalBuildSize(168, [('c',), ('d',)], positions)
1191
1100
def test_get_position(self):
1192
1101
transport = MockTransport([
1193
1102
_KndxIndex.HEADER,
1197
1106
index = self.get_knit_index(transport, "filename", "r")
1199
self.assertEqual(((b"a",), 0, 1), index.get_position((b"a",)))
1200
self.assertEqual(((b"b",), 1, 2), index.get_position((b"b",)))
1108
self.assertEqual((("a",), 0, 1), index.get_position(("a",)))
1109
self.assertEqual((("b",), 1, 2), index.get_position(("b",)))
1202
1111
def test_get_method(self):
1203
1112
transport = MockTransport([
1204
1113
_KndxIndex.HEADER,
1205
b"a fulltext,unknown 0 1 :",
1206
b"b unknown,line-delta 1 2 :",
1114
"a fulltext,unknown 0 1 :",
1115
"b unknown,line-delta 1 2 :",
1209
1118
index = self.get_knit_index(transport, "filename", "r")
1211
self.assertEqual("fulltext", index.get_method(b"a"))
1212
self.assertEqual("line-delta", index.get_method(b"b"))
1213
self.assertRaises(knit.KnitIndexUnknownMethod, index.get_method, b"c")
1120
self.assertEqual("fulltext", index.get_method("a"))
1121
self.assertEqual("line-delta", index.get_method("b"))
1122
self.assertRaises(errors.KnitIndexUnknownMethod, index.get_method, "c")
1215
1124
def test_get_options(self):
1216
1125
transport = MockTransport([
1217
1126
_KndxIndex.HEADER,
1219
b"b opt2,opt3 1 2 :"
1221
1130
index = self.get_knit_index(transport, "filename", "r")
1223
self.assertEqual([b"opt1"], index.get_options(b"a"))
1224
self.assertEqual([b"opt2", b"opt3"], index.get_options(b"b"))
1132
self.assertEqual(["opt1"], index.get_options("a"))
1133
self.assertEqual(["opt2", "opt3"], index.get_options("b"))
1226
1135
def test_get_parent_map(self):
1227
1136
transport = MockTransport([
1228
1137
_KndxIndex.HEADER,
1230
b"b option 1 2 0 .c :",
1231
b"c option 1 2 1 0 .e :"
1139
"b option 1 2 0 .c :",
1140
"c option 1 2 1 0 .e :"
1233
1142
index = self.get_knit_index(transport, "filename", "r")
1235
1144
self.assertEqual({
1237
(b"b",): ((b"a",), (b"c",)),
1238
(b"c",): ((b"b",), (b"a",), (b"e",)),
1146
("b",):(("a",), ("c",)),
1147
("c",):(("b",), ("a",), ("e",)),
1239
1148
}, index.get_parent_map(index.keys()))
1241
1150
def test_impossible_parent(self):
1242
1151
"""Test we get KnitCorrupt if the parent couldn't possibly exist."""
1243
1152
transport = MockTransport([
1244
1153
_KndxIndex.HEADER,
1246
b"b option 0 1 4 :" # We don't have a 4th record
1155
"b option 0 1 4 :" # We don't have a 4th record
1248
1157
index = self.get_knit_index(transport, 'filename', 'r')
1249
self.assertRaises(KnitCorrupt, index.keys)
1159
self.assertRaises(errors.KnitCorrupt, index.keys)
1160
except TypeError, e:
1161
if (str(e) == ('exceptions must be strings, classes, or instances,'
1162
' not exceptions.IndexError')
1163
and sys.version_info[0:2] >= (2,5)):
1164
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
1165
' raising new style exceptions with python'
1251
1170
def test_corrupted_parent(self):
1252
1171
transport = MockTransport([
1253
1172
_KndxIndex.HEADER,
1256
b"c option 0 1 1v :", # Can't have a parent of '1v'
1175
"c option 0 1 1v :", # Can't have a parent of '1v'
1258
1177
index = self.get_knit_index(transport, 'filename', 'r')
1259
self.assertRaises(KnitCorrupt, index.keys)
1179
self.assertRaises(errors.KnitCorrupt, index.keys)
1180
except TypeError, e:
1181
if (str(e) == ('exceptions must be strings, classes, or instances,'
1182
' not exceptions.ValueError')
1183
and sys.version_info[0:2] >= (2,5)):
1184
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
1185
' raising new style exceptions with python'
1261
1190
def test_corrupted_parent_in_list(self):
1262
1191
transport = MockTransport([
1263
1192
_KndxIndex.HEADER,
1266
b"c option 0 1 1 v :", # Can't have a parent of 'v'
1195
"c option 0 1 1 v :", # Can't have a parent of 'v'
1268
1197
index = self.get_knit_index(transport, 'filename', 'r')
1269
self.assertRaises(KnitCorrupt, index.keys)
1199
self.assertRaises(errors.KnitCorrupt, index.keys)
1200
except TypeError, e:
1201
if (str(e) == ('exceptions must be strings, classes, or instances,'
1202
' not exceptions.ValueError')
1203
and sys.version_info[0:2] >= (2,5)):
1204
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
1205
' raising new style exceptions with python'
1271
1210
def test_invalid_position(self):
1272
1211
transport = MockTransport([
1273
1212
_KndxIndex.HEADER,
1276
1215
index = self.get_knit_index(transport, 'filename', 'r')
1277
self.assertRaises(KnitCorrupt, index.keys)
1217
self.assertRaises(errors.KnitCorrupt, index.keys)
1218
except TypeError, e:
1219
if (str(e) == ('exceptions must be strings, classes, or instances,'
1220
' not exceptions.ValueError')
1221
and sys.version_info[0:2] >= (2,5)):
1222
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
1223
' raising new style exceptions with python'
1279
1228
def test_invalid_size(self):
1280
1229
transport = MockTransport([
1281
1230
_KndxIndex.HEADER,
1284
1233
index = self.get_knit_index(transport, 'filename', 'r')
1285
self.assertRaises(KnitCorrupt, index.keys)
1235
self.assertRaises(errors.KnitCorrupt, index.keys)
1236
except TypeError, e:
1237
if (str(e) == ('exceptions must be strings, classes, or instances,'
1238
' not exceptions.ValueError')
1239
and sys.version_info[0:2] >= (2,5)):
1240
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
1241
' raising new style exceptions with python'
1287
1246
def test_scan_unvalidated_index_not_implemented(self):
1288
1247
transport = MockTransport()
1296
1255
def test_short_line(self):
1297
1256
transport = MockTransport([
1298
1257
_KndxIndex.HEADER,
1300
b"b option 10 10 0", # This line isn't terminated, ignored
1259
"b option 10 10 0", # This line isn't terminated, ignored
1302
1261
index = self.get_knit_index(transport, "filename", "r")
1303
self.assertEqual({(b'a',)}, index.keys())
1262
self.assertEqual(set([('a',)]), index.keys())
1305
1264
def test_skip_incomplete_record(self):
1306
1265
# A line with bogus data should just be skipped
1307
1266
transport = MockTransport([
1308
1267
_KndxIndex.HEADER,
1310
b"b option 10 10 0", # This line isn't terminated, ignored
1311
b"c option 20 10 0 :", # Properly terminated, and starts with '\n'
1269
"b option 10 10 0", # This line isn't terminated, ignored
1270
"c option 20 10 0 :", # Properly terminated, and starts with '\n'
1313
1272
index = self.get_knit_index(transport, "filename", "r")
1314
self.assertEqual({(b'a',), (b'c',)}, index.keys())
1273
self.assertEqual(set([('a',), ('c',)]), index.keys())
1316
1275
def test_trailing_characters(self):
1317
1276
# A line with bogus data should just be skipped
1318
1277
transport = MockTransport([
1319
1278
_KndxIndex.HEADER,
1321
b"b option 10 10 0 :a", # This line has extra trailing characters
1322
b"c option 20 10 0 :", # Properly terminated, and starts with '\n'
1280
"b option 10 10 0 :a", # This line has extra trailing characters
1281
"c option 20 10 0 :", # Properly terminated, and starts with '\n'
1324
1283
index = self.get_knit_index(transport, "filename", "r")
1325
self.assertEqual({(b'a',), (b'c',)}, index.keys())
1284
self.assertEqual(set([('a',), ('c',)]), index.keys())
1328
1287
class LowLevelKnitIndexTests_c(LowLevelKnitIndexTests):
1330
1289
_test_needs_features = [compiled_knit_feature]
1333
def _load_data(self):
1334
from ..bzr._knit_load_data_pyx import _load_data_c
1291
def get_knit_index(self, transport, name, mode):
1292
mapper = ConstantMapper(name)
1293
from bzrlib._knit_load_data_pyx import _load_data_c
1294
self.overrideAttr(knit, '_load_data', _load_data_c)
1295
allow_writes = lambda: mode == 'w'
1296
return _KndxIndex(transport, mapper, lambda:None,
1297
allow_writes, lambda:True)
1338
1300
class Test_KnitAnnotator(TestCaseWithMemoryTransport):
1397
1359
def test__expand_delta_records_blocks(self):
1398
1360
ann = self.make_annotator()
1399
rev_key = (b'rev-id',)
1400
parent_key = (b'parent-id',)
1401
record = [b'0,1,1\n', b'new-line\n']
1361
rev_key = ('rev-id',)
1362
parent_key = ('parent-id',)
1363
record = ['0,1,1\n', 'new-line\n']
1402
1364
details = ('line-delta', True)
1403
1365
ann._num_compression_children[parent_key] = 2
1404
1366
ann._expand_record(parent_key, (), None,
1405
[b'line1\n', b'line2\n', b'line3\n'],
1367
['line1\n', 'line2\n', 'line3\n'],
1406
1368
('fulltext', False))
1407
1369
ann._expand_record(rev_key, (parent_key,), parent_key, record, details)
1408
1370
self.assertEqual({(rev_key, parent_key): [(1, 1, 1), (3, 3, 0)]},
1409
1371
ann._matching_blocks)
1410
rev2_key = (b'rev2-id',)
1411
record = [b'0,1,1\n', b'new-line\n']
1372
rev2_key = ('rev2-id',)
1373
record = ['0,1,1\n', 'new-line\n']
1412
1374
details = ('line-delta', False)
1413
ann._expand_record(rev2_key, (parent_key,),
1414
parent_key, record, details)
1375
ann._expand_record(rev2_key, (parent_key,), parent_key, record, details)
1415
1376
self.assertEqual([(1, 1, 2), (3, 3, 0)],
1416
1377
ann._matching_blocks[(rev2_key, parent_key)])
1418
1379
def test__get_parent_ann_uses_matching_blocks(self):
1419
1380
ann = self.make_annotator()
1420
rev_key = (b'rev-id',)
1421
parent_key = (b'parent-id',)
1422
parent_ann = [(parent_key,)] * 3
1381
rev_key = ('rev-id',)
1382
parent_key = ('parent-id',)
1383
parent_ann = [(parent_key,)]*3
1423
1384
block_key = (rev_key, parent_key)
1424
1385
ann._annotations_cache[parent_key] = parent_ann
1425
1386
ann._matching_blocks[block_key] = [(0, 1, 1), (3, 3, 0)]
1426
1387
# We should not try to access any parent_lines content, because we know
1427
1388
# we already have the matching blocks
1428
1389
par_ann, blocks = ann._get_parent_annotations_and_matches(rev_key,
1429
[b'1\n', b'2\n', b'3\n'], parent_key)
1390
['1\n', '2\n', '3\n'], parent_key)
1430
1391
self.assertEqual(parent_ann, par_ann)
1431
1392
self.assertEqual([(0, 1, 1), (3, 3, 0)], blocks)
1432
1393
self.assertEqual({}, ann._matching_blocks)
1434
1395
def test__process_pending(self):
1435
1396
ann = self.make_annotator()
1436
rev_key = (b'rev-id',)
1437
p1_key = (b'p1-id',)
1438
p2_key = (b'p2-id',)
1439
record = [b'0,1,1\n', b'new-line\n']
1397
rev_key = ('rev-id',)
1400
record = ['0,1,1\n', 'new-line\n']
1440
1401
details = ('line-delta', False)
1441
p1_record = [b'line1\n', b'line2\n']
1402
p1_record = ['line1\n', 'line2\n']
1442
1403
ann._num_compression_children[p1_key] = 1
1443
res = ann._expand_record(rev_key, (p1_key, p2_key), p1_key,
1404
res = ann._expand_record(rev_key, (p1_key,p2_key), p1_key,
1444
1405
record, details)
1445
1406
self.assertEqual(None, res)
1446
1407
# self.assertTrue(p1_key in ann._pending_deltas)
1539
1500
"""Adding versions to the index should update the lookup dict"""
1540
1501
knit = self.make_test_knit()
1541
1502
idx = knit._index
1542
idx.add_records([((b'a-1',), [b'fulltext'], ((b'a-1',), 0, 0), [])])
1503
idx.add_records([(('a-1',), ['fulltext'], (('a-1',), 0, 0), [])])
1543
1504
self.check_file_contents('test.kndx',
1544
b'# bzr knit index 8\n'
1546
b'a-1 fulltext 0 0 :'
1505
'# bzr knit index 8\n'
1507
'a-1 fulltext 0 0 :'
1548
1509
idx.add_records([
1549
((b'a-2',), [b'fulltext'], ((b'a-2',), 0, 0), [(b'a-1',)]),
1550
((b'a-3',), [b'fulltext'], ((b'a-3',), 0, 0), [(b'a-2',)]),
1510
(('a-2',), ['fulltext'], (('a-2',), 0, 0), [('a-1',)]),
1511
(('a-3',), ['fulltext'], (('a-3',), 0, 0), [('a-2',)]),
1552
1513
self.check_file_contents('test.kndx',
1553
b'# bzr knit index 8\n'
1555
b'a-1 fulltext 0 0 :\n'
1556
b'a-2 fulltext 0 0 0 :\n'
1557
b'a-3 fulltext 0 0 1 :'
1559
self.assertEqual({(b'a-3',), (b'a-1',), (b'a-2',)}, idx.keys())
1514
'# bzr knit index 8\n'
1516
'a-1 fulltext 0 0 :\n'
1517
'a-2 fulltext 0 0 0 :\n'
1518
'a-3 fulltext 0 0 1 :'
1520
self.assertEqual(set([('a-3',), ('a-1',), ('a-2',)]), idx.keys())
1560
1521
self.assertEqual({
1561
(b'a-1',): (((b'a-1',), 0, 0), None, (), ('fulltext', False)),
1562
(b'a-2',): (((b'a-2',), 0, 0), None, ((b'a-1',),), ('fulltext', False)),
1563
(b'a-3',): (((b'a-3',), 0, 0), None, ((b'a-2',),), ('fulltext', False)),
1522
('a-1',): ((('a-1',), 0, 0), None, (), ('fulltext', False)),
1523
('a-2',): ((('a-2',), 0, 0), None, (('a-1',),), ('fulltext', False)),
1524
('a-3',): ((('a-3',), 0, 0), None, (('a-2',),), ('fulltext', False)),
1564
1525
}, idx.get_build_details(idx.keys()))
1565
self.assertEqual({(b'a-1',): (),
1566
(b'a-2',): ((b'a-1',),),
1567
(b'a-3',): ((b'a-2',),), },
1568
idx.get_parent_map(idx.keys()))
1526
self.assertEqual({('a-1',):(),
1527
('a-2',):(('a-1',),),
1528
('a-3',):(('a-2',),),},
1529
idx.get_parent_map(idx.keys()))
1570
1531
def test_add_versions_fails_clean(self):
1571
1532
"""If add_versions fails in the middle, it restores a pristine state.
1645
1606
# delta compression inn the index
1646
1607
index1 = self.make_g_index('1', 2, [
1647
((b'tip', ), b'N0 100', ([(b'parent', )], [], )),
1648
((b'tail', ), b'', ([], []))])
1608
(('tip', ), 'N0 100', ([('parent', )], [], )),
1609
(('tail', ), '', ([], []))])
1649
1610
index2 = self.make_g_index('2', 2, [
1650
((b'parent', ), b' 100 78',
1651
([(b'tail', ), (b'ghost', )], [(b'tail', )])),
1652
((b'separate', ), b'', ([], []))])
1611
(('parent', ), ' 100 78', ([('tail', ), ('ghost', )], [('tail', )])),
1612
(('separate', ), '', ([], []))])
1654
1614
# just blob location and graph in the index.
1655
1615
index1 = self.make_g_index('1', 1, [
1656
((b'tip', ), b'N0 100', ([(b'parent', )], )),
1657
((b'tail', ), b'', ([], ))])
1616
(('tip', ), 'N0 100', ([('parent', )], )),
1617
(('tail', ), '', ([], ))])
1658
1618
index2 = self.make_g_index('2', 1, [
1659
((b'parent', ), b' 100 78', ([(b'tail', ), (b'ghost', )], )),
1660
((b'separate', ), b'', ([], ))])
1619
(('parent', ), ' 100 78', ([('tail', ), ('ghost', )], )),
1620
(('separate', ), '', ([], ))])
1661
1621
combined_index = CombinedGraphIndex([index1, index2])
1663
1623
self.combined_index = combined_index
1665
1625
add_callback = self.catch_add
1667
1627
add_callback = None
1668
return _KnitGraphIndex(combined_index, lambda: True, deltas=deltas,
1669
add_callback=add_callback)
1628
return _KnitGraphIndex(combined_index, lambda:True, deltas=deltas,
1629
add_callback=add_callback)
1671
1631
def test_keys(self):
1672
1632
index = self.two_graph_index()
1673
self.assertEqual({(b'tail',), (b'tip',), (b'parent',), (b'separate',)},
1633
self.assertEqual(set([('tail',), ('tip',), ('parent',), ('separate',)]),
1676
1636
def test_get_position(self):
1677
1637
index = self.two_graph_index()
1679
(index._graph_index._indices[0], 0, 100), index.get_position((b'tip',)))
1681
(index._graph_index._indices[1], 100, 78), index.get_position((b'parent',)))
1638
self.assertEqual((index._graph_index._indices[0], 0, 100), index.get_position(('tip',)))
1639
self.assertEqual((index._graph_index._indices[1], 100, 78), index.get_position(('parent',)))
1683
1641
def test_get_method_deltas(self):
1684
1642
index = self.two_graph_index(deltas=True)
1685
self.assertEqual('fulltext', index.get_method((b'tip',)))
1686
self.assertEqual('line-delta', index.get_method((b'parent',)))
1643
self.assertEqual('fulltext', index.get_method(('tip',)))
1644
self.assertEqual('line-delta', index.get_method(('parent',)))
1688
1646
def test_get_method_no_deltas(self):
1689
1647
# check that the parent-history lookup is ignored with deltas=False.
1690
1648
index = self.two_graph_index(deltas=False)
1691
self.assertEqual('fulltext', index.get_method((b'tip',)))
1692
self.assertEqual('fulltext', index.get_method((b'parent',)))
1649
self.assertEqual('fulltext', index.get_method(('tip',)))
1650
self.assertEqual('fulltext', index.get_method(('parent',)))
1694
1652
def test_get_options_deltas(self):
1695
1653
index = self.two_graph_index(deltas=True)
1696
self.assertEqual([b'fulltext', b'no-eol'],
1697
index.get_options((b'tip',)))
1698
self.assertEqual([b'line-delta'], index.get_options((b'parent',)))
1654
self.assertEqual(['fulltext', 'no-eol'], index.get_options(('tip',)))
1655
self.assertEqual(['line-delta'], index.get_options(('parent',)))
1700
1657
def test_get_options_no_deltas(self):
1701
1658
# check that the parent-history lookup is ignored with deltas=False.
1702
1659
index = self.two_graph_index(deltas=False)
1703
self.assertEqual([b'fulltext', b'no-eol'],
1704
index.get_options((b'tip',)))
1705
self.assertEqual([b'fulltext'], index.get_options((b'parent',)))
1660
self.assertEqual(['fulltext', 'no-eol'], index.get_options(('tip',)))
1661
self.assertEqual(['fulltext'], index.get_options(('parent',)))
1707
1663
def test_get_parent_map(self):
1708
1664
index = self.two_graph_index()
1709
self.assertEqual({(b'parent',): ((b'tail',), (b'ghost',))},
1710
index.get_parent_map([(b'parent',), (b'ghost',)]))
1665
self.assertEqual({('parent',):(('tail',), ('ghost',))},
1666
index.get_parent_map([('parent',), ('ghost',)]))
1712
1668
def catch_add(self, entries):
1713
1669
self.caught_entries.append(entries)
1715
1671
def test_add_no_callback_errors(self):
1716
1672
index = self.two_graph_index()
1717
1673
self.assertRaises(errors.ReadOnlyError, index.add_records,
1718
[((b'new',), b'fulltext,no-eol', (None, 50, 60), [b'separate'])])
1674
[(('new',), 'fulltext,no-eol', (None, 50, 60), ['separate'])])
1720
1676
def test_add_version_smoke(self):
1721
1677
index = self.two_graph_index(catch_adds=True)
1722
index.add_records([((b'new',), b'fulltext,no-eol', (None, 50, 60),
1724
self.assertEqual([[((b'new', ), b'N50 60', (((b'separate',),),))]],
1725
self.caught_entries)
1678
index.add_records([(('new',), 'fulltext,no-eol', (None, 50, 60),
1680
self.assertEqual([[(('new', ), 'N50 60', ((('separate',),),))]],
1681
self.caught_entries)
1727
1683
def test_add_version_delta_not_delta_index(self):
1728
1684
index = self.two_graph_index(catch_adds=True)
1729
self.assertRaises(KnitCorrupt, index.add_records,
1730
[((b'new',), b'no-eol,line-delta', (None, 0, 100), [(b'parent',)])])
1685
self.assertRaises(errors.KnitCorrupt, index.add_records,
1686
[(('new',), 'no-eol,line-delta', (None, 0, 100), [('parent',)])])
1731
1687
self.assertEqual([], self.caught_entries)
1733
1689
def test_add_version_same_dup(self):
1734
1690
index = self.two_graph_index(catch_adds=True)
1735
1691
# options can be spelt two different ways
1737
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), [(b'parent',)])])
1739
[((b'tip',), b'no-eol,fulltext', (None, 0, 100), [(b'parent',)])])
1692
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 100), [('parent',)])])
1693
index.add_records([(('tip',), 'no-eol,fulltext', (None, 0, 100), [('parent',)])])
1740
1694
# position/length are ignored (because each pack could have fulltext or
1741
1695
# delta, and be at a different position.
1742
index.add_records([((b'tip',), b'fulltext,no-eol', (None, 50, 100),
1744
index.add_records([((b'tip',), b'fulltext,no-eol', (None, 0, 1000),
1696
index.add_records([(('tip',), 'fulltext,no-eol', (None, 50, 100),
1698
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 1000),
1746
1700
# but neither should have added data:
1747
1701
self.assertEqual([[], [], [], []], self.caught_entries)
1749
1703
def test_add_version_different_dup(self):
1750
1704
index = self.two_graph_index(deltas=True, catch_adds=True)
1751
1705
# change options
1752
self.assertRaises(KnitCorrupt, index.add_records,
1753
[((b'tip',), b'line-delta', (None, 0, 100), [(b'parent',)])])
1754
self.assertRaises(KnitCorrupt, index.add_records,
1755
[((b'tip',), b'fulltext', (None, 0, 100), [(b'parent',)])])
1706
self.assertRaises(errors.KnitCorrupt, index.add_records,
1707
[(('tip',), 'line-delta', (None, 0, 100), [('parent',)])])
1708
self.assertRaises(errors.KnitCorrupt, index.add_records,
1709
[(('tip',), 'fulltext', (None, 0, 100), [('parent',)])])
1757
self.assertRaises(KnitCorrupt, index.add_records,
1758
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), [])])
1711
self.assertRaises(errors.KnitCorrupt, index.add_records,
1712
[(('tip',), 'fulltext,no-eol', (None, 0, 100), [])])
1759
1713
self.assertEqual([], self.caught_entries)
1761
1715
def test_add_versions_nodeltas(self):
1762
1716
index = self.two_graph_index(catch_adds=True)
1763
1717
index.add_records([
1764
((b'new',), b'fulltext,no-eol', (None, 50, 60), [(b'separate',)]),
1765
((b'new2',), b'fulltext', (None, 0, 6), [(b'new',)]),
1767
self.assertEqual([((b'new', ), b'N50 60', (((b'separate',),),)),
1768
((b'new2', ), b' 0 6', (((b'new',),),))],
1769
sorted(self.caught_entries[0]))
1718
(('new',), 'fulltext,no-eol', (None, 50, 60), [('separate',)]),
1719
(('new2',), 'fulltext', (None, 0, 6), [('new',)]),
1721
self.assertEqual([(('new', ), 'N50 60', ((('separate',),),)),
1722
(('new2', ), ' 0 6', ((('new',),),))],
1723
sorted(self.caught_entries[0]))
1770
1724
self.assertEqual(1, len(self.caught_entries))
1772
1726
def test_add_versions_deltas(self):
1773
1727
index = self.two_graph_index(deltas=True, catch_adds=True)
1774
1728
index.add_records([
1775
((b'new',), b'fulltext,no-eol', (None, 50, 60), [(b'separate',)]),
1776
((b'new2',), b'line-delta', (None, 0, 6), [(b'new',)]),
1778
self.assertEqual([((b'new', ), b'N50 60', (((b'separate',),), ())),
1779
((b'new2', ), b' 0 6', (((b'new',),), ((b'new',),), ))],
1780
sorted(self.caught_entries[0]))
1729
(('new',), 'fulltext,no-eol', (None, 50, 60), [('separate',)]),
1730
(('new2',), 'line-delta', (None, 0, 6), [('new',)]),
1732
self.assertEqual([(('new', ), 'N50 60', ((('separate',),), ())),
1733
(('new2', ), ' 0 6', ((('new',),), (('new',),), ))],
1734
sorted(self.caught_entries[0]))
1781
1735
self.assertEqual(1, len(self.caught_entries))
1783
1737
def test_add_versions_delta_not_delta_index(self):
1784
1738
index = self.two_graph_index(catch_adds=True)
1785
self.assertRaises(KnitCorrupt, index.add_records,
1786
[((b'new',), b'no-eol,line-delta', (None, 0, 100), [(b'parent',)])])
1739
self.assertRaises(errors.KnitCorrupt, index.add_records,
1740
[(('new',), 'no-eol,line-delta', (None, 0, 100), [('parent',)])])
1787
1741
self.assertEqual([], self.caught_entries)
1789
1743
def test_add_versions_random_id_accepted(self):
1793
1747
def test_add_versions_same_dup(self):
1794
1748
index = self.two_graph_index(catch_adds=True)
1795
1749
# options can be spelt two different ways
1796
index.add_records([((b'tip',), b'fulltext,no-eol', (None, 0, 100),
1798
index.add_records([((b'tip',), b'no-eol,fulltext', (None, 0, 100),
1750
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 100),
1752
index.add_records([(('tip',), 'no-eol,fulltext', (None, 0, 100),
1800
1754
# position/length are ignored (because each pack could have fulltext or
1801
1755
# delta, and be at a different position.
1802
index.add_records([((b'tip',), b'fulltext,no-eol', (None, 50, 100),
1804
index.add_records([((b'tip',), b'fulltext,no-eol', (None, 0, 1000),
1756
index.add_records([(('tip',), 'fulltext,no-eol', (None, 50, 100),
1758
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 1000),
1806
1760
# but neither should have added data.
1807
1761
self.assertEqual([[], [], [], []], self.caught_entries)
1809
1763
def test_add_versions_different_dup(self):
1810
1764
index = self.two_graph_index(deltas=True, catch_adds=True)
1811
1765
# change options
1812
self.assertRaises(KnitCorrupt, index.add_records,
1813
[((b'tip',), b'line-delta', (None, 0, 100), [(b'parent',)])])
1814
self.assertRaises(KnitCorrupt, index.add_records,
1815
[((b'tip',), b'fulltext', (None, 0, 100), [(b'parent',)])])
1766
self.assertRaises(errors.KnitCorrupt, index.add_records,
1767
[(('tip',), 'line-delta', (None, 0, 100), [('parent',)])])
1768
self.assertRaises(errors.KnitCorrupt, index.add_records,
1769
[(('tip',), 'fulltext', (None, 0, 100), [('parent',)])])
1817
self.assertRaises(KnitCorrupt, index.add_records,
1818
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), [])])
1771
self.assertRaises(errors.KnitCorrupt, index.add_records,
1772
[(('tip',), 'fulltext,no-eol', (None, 0, 100), [])])
1819
1773
# change options in the second record
1820
self.assertRaises(KnitCorrupt, index.add_records,
1821
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), [(b'parent',)]),
1822
((b'tip',), b'line-delta', (None, 0, 100), [(b'parent',)])])
1774
self.assertRaises(errors.KnitCorrupt, index.add_records,
1775
[(('tip',), 'fulltext,no-eol', (None, 0, 100), [('parent',)]),
1776
(('tip',), 'line-delta', (None, 0, 100), [('parent',)])])
1823
1777
self.assertEqual([], self.caught_entries)
1825
1779
def make_g_index_missing_compression_parent(self):
1826
1780
graph_index = self.make_g_index('missing_comp', 2,
1827
[((b'tip', ), b' 100 78',
1828
([(b'missing-parent', ), (b'ghost', )], [(b'missing-parent', )]))])
1781
[(('tip', ), ' 100 78',
1782
([('missing-parent', ), ('ghost', )], [('missing-parent', )]))])
1829
1783
return graph_index
1831
1785
def make_g_index_missing_parent(self):
1832
1786
graph_index = self.make_g_index('missing_parent', 2,
1833
[((b'parent', ), b' 100 78', ([], [])),
1834
((b'tip', ), b' 100 78',
1835
([(b'parent', ), (b'missing-parent', )], [(b'parent', )])),
1787
[(('parent', ), ' 100 78', ([], [])),
1788
(('tip', ), ' 100 78',
1789
([('parent', ), ('missing-parent', )], [('parent', )])),
1837
1791
return graph_index
1839
1793
def make_g_index_no_external_refs(self):
1840
1794
graph_index = self.make_g_index('no_external_refs', 2,
1841
[((b'rev', ), b' 100 78',
1842
([(b'parent', ), (b'ghost', )], []))])
1795
[(('rev', ), ' 100 78',
1796
([('parent', ), ('ghost', )], []))])
1843
1797
return graph_index
1845
1799
def test_add_good_unvalidated_index(self):
1973
1927
add_callback = self.catch_add
1975
1929
add_callback = None
1976
return _KnitGraphIndex(combined_index, lambda: True, parents=False,
1977
add_callback=add_callback)
1930
return _KnitGraphIndex(combined_index, lambda:True, parents=False,
1931
add_callback=add_callback)
1979
1933
def test_keys(self):
1980
1934
index = self.two_graph_index()
1981
self.assertEqual({(b'tail',), (b'tip',), (b'parent',), (b'separate',)},
1935
self.assertEqual(set([('tail',), ('tip',), ('parent',), ('separate',)]),
1984
1938
def test_get_position(self):
1985
1939
index = self.two_graph_index()
1986
1940
self.assertEqual((index._graph_index._indices[0], 0, 100),
1987
index.get_position((b'tip',)))
1941
index.get_position(('tip',)))
1988
1942
self.assertEqual((index._graph_index._indices[1], 100, 78),
1989
index.get_position((b'parent',)))
1943
index.get_position(('parent',)))
1991
1945
def test_get_method(self):
1992
1946
index = self.two_graph_index()
1993
self.assertEqual('fulltext', index.get_method((b'tip',)))
1994
self.assertEqual([b'fulltext'], index.get_options((b'parent',)))
1947
self.assertEqual('fulltext', index.get_method(('tip',)))
1948
self.assertEqual(['fulltext'], index.get_options(('parent',)))
1996
1950
def test_get_options(self):
1997
1951
index = self.two_graph_index()
1998
self.assertEqual([b'fulltext', b'no-eol'],
1999
index.get_options((b'tip',)))
2000
self.assertEqual([b'fulltext'], index.get_options((b'parent',)))
1952
self.assertEqual(['fulltext', 'no-eol'], index.get_options(('tip',)))
1953
self.assertEqual(['fulltext'], index.get_options(('parent',)))
2002
1955
def test_get_parent_map(self):
2003
1956
index = self.two_graph_index()
2004
self.assertEqual({(b'parent',): None},
2005
index.get_parent_map([(b'parent',), (b'ghost',)]))
1957
self.assertEqual({('parent',):None},
1958
index.get_parent_map([('parent',), ('ghost',)]))
2007
1960
def catch_add(self, entries):
2008
1961
self.caught_entries.append(entries)
2010
1963
def test_add_no_callback_errors(self):
2011
1964
index = self.two_graph_index()
2012
1965
self.assertRaises(errors.ReadOnlyError, index.add_records,
2013
[((b'new',), b'fulltext,no-eol', (None, 50, 60), [(b'separate',)])])
1966
[(('new',), 'fulltext,no-eol', (None, 50, 60), [('separate',)])])
2015
1968
def test_add_version_smoke(self):
2016
1969
index = self.two_graph_index(catch_adds=True)
2018
[((b'new',), b'fulltext,no-eol', (None, 50, 60), [])])
2019
self.assertEqual([[((b'new', ), b'N50 60')]],
2020
self.caught_entries)
1970
index.add_records([(('new',), 'fulltext,no-eol', (None, 50, 60), [])])
1971
self.assertEqual([[(('new', ), 'N50 60')]],
1972
self.caught_entries)
2022
1974
def test_add_version_delta_not_delta_index(self):
2023
1975
index = self.two_graph_index(catch_adds=True)
2024
self.assertRaises(KnitCorrupt, index.add_records,
2025
[((b'new',), b'no-eol,line-delta', (None, 0, 100), [])])
1976
self.assertRaises(errors.KnitCorrupt, index.add_records,
1977
[(('new',), 'no-eol,line-delta', (None, 0, 100), [])])
2026
1978
self.assertEqual([], self.caught_entries)
2028
1980
def test_add_version_same_dup(self):
2029
1981
index = self.two_graph_index(catch_adds=True)
2030
1982
# options can be spelt two different ways
2032
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), [])])
2034
[((b'tip',), b'no-eol,fulltext', (None, 0, 100), [])])
1983
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 100), [])])
1984
index.add_records([(('tip',), 'no-eol,fulltext', (None, 0, 100), [])])
2035
1985
# position/length are ignored (because each pack could have fulltext or
2036
1986
# delta, and be at a different position.
2038
[((b'tip',), b'fulltext,no-eol', (None, 50, 100), [])])
2040
[((b'tip',), b'fulltext,no-eol', (None, 0, 1000), [])])
1987
index.add_records([(('tip',), 'fulltext,no-eol', (None, 50, 100), [])])
1988
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 1000), [])])
2041
1989
# but neither should have added data.
2042
1990
self.assertEqual([[], [], [], []], self.caught_entries)
2044
1992
def test_add_version_different_dup(self):
2045
1993
index = self.two_graph_index(catch_adds=True)
2046
1994
# change options
2047
self.assertRaises(KnitCorrupt, index.add_records,
2048
[((b'tip',), b'no-eol,line-delta', (None, 0, 100), [])])
2049
self.assertRaises(KnitCorrupt, index.add_records,
2050
[((b'tip',), b'line-delta,no-eol', (None, 0, 100), [])])
2051
self.assertRaises(KnitCorrupt, index.add_records,
2052
[((b'tip',), b'fulltext', (None, 0, 100), [])])
1995
self.assertRaises(errors.KnitCorrupt, index.add_records,
1996
[(('tip',), 'no-eol,line-delta', (None, 0, 100), [])])
1997
self.assertRaises(errors.KnitCorrupt, index.add_records,
1998
[(('tip',), 'line-delta,no-eol', (None, 0, 100), [])])
1999
self.assertRaises(errors.KnitCorrupt, index.add_records,
2000
[(('tip',), 'fulltext', (None, 0, 100), [])])
2054
self.assertRaises(KnitCorrupt, index.add_records,
2055
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), [(b'parent',)])])
2002
self.assertRaises(errors.KnitCorrupt, index.add_records,
2003
[(('tip',), 'fulltext,no-eol', (None, 0, 100), [('parent',)])])
2056
2004
self.assertEqual([], self.caught_entries)
2058
2006
def test_add_versions(self):
2059
2007
index = self.two_graph_index(catch_adds=True)
2060
2008
index.add_records([
2061
((b'new',), b'fulltext,no-eol', (None, 50, 60), []),
2062
((b'new2',), b'fulltext', (None, 0, 6), []),
2064
self.assertEqual([((b'new', ), b'N50 60'), ((b'new2', ), b' 0 6')],
2065
sorted(self.caught_entries[0]))
2009
(('new',), 'fulltext,no-eol', (None, 50, 60), []),
2010
(('new2',), 'fulltext', (None, 0, 6), []),
2012
self.assertEqual([(('new', ), 'N50 60'), (('new2', ), ' 0 6')],
2013
sorted(self.caught_entries[0]))
2066
2014
self.assertEqual(1, len(self.caught_entries))
2068
2016
def test_add_versions_delta_not_delta_index(self):
2069
2017
index = self.two_graph_index(catch_adds=True)
2070
self.assertRaises(KnitCorrupt, index.add_records,
2071
[((b'new',), b'no-eol,line-delta', (None, 0, 100), [(b'parent',)])])
2018
self.assertRaises(errors.KnitCorrupt, index.add_records,
2019
[(('new',), 'no-eol,line-delta', (None, 0, 100), [('parent',)])])
2072
2020
self.assertEqual([], self.caught_entries)
2074
2022
def test_add_versions_parents_not_parents_index(self):
2075
2023
index = self.two_graph_index(catch_adds=True)
2076
self.assertRaises(KnitCorrupt, index.add_records,
2077
[((b'new',), b'no-eol,fulltext', (None, 0, 100), [(b'parent',)])])
2024
self.assertRaises(errors.KnitCorrupt, index.add_records,
2025
[(('new',), 'no-eol,fulltext', (None, 0, 100), [('parent',)])])
2078
2026
self.assertEqual([], self.caught_entries)
2080
2028
def test_add_versions_random_id_accepted(self):
2084
2032
def test_add_versions_same_dup(self):
2085
2033
index = self.two_graph_index(catch_adds=True)
2086
2034
# options can be spelt two different ways
2088
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), [])])
2090
[((b'tip',), b'no-eol,fulltext', (None, 0, 100), [])])
2035
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 100), [])])
2036
index.add_records([(('tip',), 'no-eol,fulltext', (None, 0, 100), [])])
2091
2037
# position/length are ignored (because each pack could have fulltext or
2092
2038
# delta, and be at a different position.
2094
[((b'tip',), b'fulltext,no-eol', (None, 50, 100), [])])
2096
[((b'tip',), b'fulltext,no-eol', (None, 0, 1000), [])])
2039
index.add_records([(('tip',), 'fulltext,no-eol', (None, 50, 100), [])])
2040
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 1000), [])])
2097
2041
# but neither should have added data.
2098
2042
self.assertEqual([[], [], [], []], self.caught_entries)
2100
2044
def test_add_versions_different_dup(self):
2101
2045
index = self.two_graph_index(catch_adds=True)
2102
2046
# change options
2103
self.assertRaises(KnitCorrupt, index.add_records,
2104
[((b'tip',), b'no-eol,line-delta', (None, 0, 100), [])])
2105
self.assertRaises(KnitCorrupt, index.add_records,
2106
[((b'tip',), b'line-delta,no-eol', (None, 0, 100), [])])
2107
self.assertRaises(KnitCorrupt, index.add_records,
2108
[((b'tip',), b'fulltext', (None, 0, 100), [])])
2047
self.assertRaises(errors.KnitCorrupt, index.add_records,
2048
[(('tip',), 'no-eol,line-delta', (None, 0, 100), [])])
2049
self.assertRaises(errors.KnitCorrupt, index.add_records,
2050
[(('tip',), 'line-delta,no-eol', (None, 0, 100), [])])
2051
self.assertRaises(errors.KnitCorrupt, index.add_records,
2052
[(('tip',), 'fulltext', (None, 0, 100), [])])
2110
self.assertRaises(KnitCorrupt, index.add_records,
2111
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), [(b'parent',)])])
2054
self.assertRaises(errors.KnitCorrupt, index.add_records,
2055
[(('tip',), 'fulltext,no-eol', (None, 0, 100), [('parent',)])])
2112
2056
# change options in the second record
2113
self.assertRaises(KnitCorrupt, index.add_records,
2114
[((b'tip',), b'fulltext,no-eol', (None, 0, 100), []),
2115
((b'tip',), b'no-eol,line-delta', (None, 0, 100), [])])
2057
self.assertRaises(errors.KnitCorrupt, index.add_records,
2058
[(('tip',), 'fulltext,no-eol', (None, 0, 100), []),
2059
(('tip',), 'no-eol,line-delta', (None, 0, 100), [])])
2116
2060
self.assertEqual([], self.caught_entries)
2174
2118
_min_buffer_size=125)
2176
2120
def test__split_by_prefix(self):
2177
self.assertSplitByPrefix({b'f': [(b'f', b'a'), (b'f', b'b')],
2178
b'g': [(b'g', b'b'), (b'g', b'a')],
2180
[(b'f', b'a'), (b'g', b'b'),
2181
(b'g', b'a'), (b'f', b'b')])
2183
self.assertSplitByPrefix({b'f': [(b'f', b'a'), (b'f', b'b')],
2184
b'g': [(b'g', b'b'), (b'g', b'a')],
2186
[(b'f', b'a'), (b'f', b'b'),
2187
(b'g', b'b'), (b'g', b'a')])
2189
self.assertSplitByPrefix({b'f': [(b'f', b'a'), (b'f', b'b')],
2190
b'g': [(b'g', b'b'), (b'g', b'a')],
2192
[(b'f', b'a'), (b'f', b'b'),
2193
(b'g', b'b'), (b'g', b'a')])
2195
self.assertSplitByPrefix({b'f': [(b'f', b'a'), (b'f', b'b')],
2196
b'g': [(b'g', b'b'), (b'g', b'a')],
2197
b'': [(b'a',), (b'b',)]
2198
}, [b'f', b'g', b''],
2199
[(b'f', b'a'), (b'g', b'b'),
2201
(b'g', b'a'), (b'f', b'b')])
2121
self.assertSplitByPrefix({'f': [('f', 'a'), ('f', 'b')],
2122
'g': [('g', 'b'), ('g', 'a')],
2124
[('f', 'a'), ('g', 'b'),
2125
('g', 'a'), ('f', 'b')])
2127
self.assertSplitByPrefix({'f': [('f', 'a'), ('f', 'b')],
2128
'g': [('g', 'b'), ('g', 'a')],
2130
[('f', 'a'), ('f', 'b'),
2131
('g', 'b'), ('g', 'a')])
2133
self.assertSplitByPrefix({'f': [('f', 'a'), ('f', 'b')],
2134
'g': [('g', 'b'), ('g', 'a')],
2136
[('f', 'a'), ('f', 'b'),
2137
('g', 'b'), ('g', 'a')])
2139
self.assertSplitByPrefix({'f': [('f', 'a'), ('f', 'b')],
2140
'g': [('g', 'b'), ('g', 'a')],
2141
'': [('a',), ('b',)]
2143
[('f', 'a'), ('g', 'b'),
2145
('g', 'a'), ('f', 'b')])
2204
2148
class TestStacking(KnitTests):
2220
2164
def test_add_lines(self):
2221
2165
# lines added to the test are not added to the basis
2222
2166
basis, test = self.get_basis_and_test_knit()
2224
key_basis = (b'bar',)
2225
key_cross_border = (b'quux',)
2226
key_delta = (b'zaphod',)
2227
test.add_lines(key, (), [b'foo\n'])
2168
key_basis = ('bar',)
2169
key_cross_border = ('quux',)
2170
key_delta = ('zaphod',)
2171
test.add_lines(key, (), ['foo\n'])
2228
2172
self.assertEqual({}, basis.get_parent_map([key]))
2229
2173
# lines added to the test that reference across the stack do a
2231
basis.add_lines(key_basis, (), [b'foo\n'])
2175
basis.add_lines(key_basis, (), ['foo\n'])
2232
2176
basis.calls = []
2233
test.add_lines(key_cross_border, (key_basis,), [b'foo\n'])
2177
test.add_lines(key_cross_border, (key_basis,), ['foo\n'])
2234
2178
self.assertEqual('fulltext', test._index.get_method(key_cross_border))
2235
2179
# we don't even need to look at the basis to see that this should be
2236
2180
# stored as a fulltext
2237
2181
self.assertEqual([], basis.calls)
2238
2182
# Subsequent adds do delta.
2239
2183
basis.calls = []
2240
test.add_lines(key_delta, (key_cross_border,), [b'foo\n'])
2184
test.add_lines(key_delta, (key_cross_border,), ['foo\n'])
2241
2185
self.assertEqual('line-delta', test._index.get_method(key_delta))
2242
2186
self.assertEqual([], basis.calls)
2244
2188
def test_annotate(self):
2245
2189
# annotations from the test knit are answered without asking the basis
2246
2190
basis, test = self.get_basis_and_test_knit()
2248
key_basis = (b'bar',)
2249
test.add_lines(key, (), [b'foo\n'])
2192
key_basis = ('bar',)
2193
key_missing = ('missing',)
2194
test.add_lines(key, (), ['foo\n'])
2250
2195
details = test.annotate(key)
2251
self.assertEqual([(key, b'foo\n')], details)
2196
self.assertEqual([(key, 'foo\n')], details)
2252
2197
self.assertEqual([], basis.calls)
2253
2198
# But texts that are not in the test knit are looked for in the basis
2255
basis.add_lines(key_basis, (), [b'foo\n', b'bar\n'])
2200
basis.add_lines(key_basis, (), ['foo\n', 'bar\n'])
2256
2201
basis.calls = []
2257
2202
details = test.annotate(key_basis)
2259
[(key_basis, b'foo\n'), (key_basis, b'bar\n')], details)
2203
self.assertEqual([(key_basis, 'foo\n'), (key_basis, 'bar\n')], details)
2260
2204
# Not optimised to date:
2261
2205
# self.assertEqual([("annotate", key_basis)], basis.calls)
2262
self.assertEqual([('get_parent_map', {key_basis}),
2263
('get_parent_map', {key_basis}),
2264
('get_record_stream', [key_basis], 'topological', True)],
2206
self.assertEqual([('get_parent_map', set([key_basis])),
2207
('get_parent_map', set([key_basis])),
2208
('get_record_stream', [key_basis], 'topological', True)],
2267
2211
def test_check(self):
2268
2212
# At the moment checking a stacked knit does implicitly check the
2455
record = next(source.get_record_stream([result[0]], 'unordered',
2394
record = source.get_record_stream([result[0]], 'unordered',
2457
2396
self.assertEqual(record.key, result[0])
2458
2397
self.assertEqual(record.sha1, result[1])
2459
2398
self.assertEqual(record.storage_kind, result[2])
2460
self.assertEqual(record.get_bytes_as(
2461
record.storage_kind), result[3])
2399
self.assertEqual(record.get_bytes_as(record.storage_kind), result[3])
2462
2400
# It's not strictly minimal, but it seems reasonable for now for it to
2463
2401
# ask which fallbacks have which parents.
2464
2402
self.assertEqual([
2465
("get_parent_map", {key_basis, key_basis_2, key_missing}),
2403
("get_parent_map", set([key_basis, key_basis_2, key_missing])),
2466
2404
("get_record_stream", [key_basis_2, key_basis], 'topological', False)],
2469
2407
def test_get_sha1s(self):
2470
2408
# sha1's in the test knit are answered without asking the basis
2471
2409
basis, test = self.get_basis_and_test_knit()
2473
key_basis = (b'bar',)
2474
key_missing = (b'missing',)
2475
test.add_lines(key, (), [b'foo\n'])
2476
key_sha1sum = osutils.sha_string(b'foo\n')
2411
key_basis = ('bar',)
2412
key_missing = ('missing',)
2413
test.add_lines(key, (), ['foo\n'])
2414
key_sha1sum = osutils.sha('foo\n').hexdigest()
2477
2415
sha1s = test.get_sha1s([key])
2478
2416
self.assertEqual({key: key_sha1sum}, sha1s)
2479
2417
self.assertEqual([], basis.calls)
2480
2418
# But texts that are not in the test knit are looked for in the basis
2481
2419
# directly (rather than via text reconstruction) so that remote servers
2482
2420
# etc don't have to answer with full content.
2483
basis.add_lines(key_basis, (), [b'foo\n', b'bar\n'])
2484
basis_sha1sum = osutils.sha_string(b'foo\nbar\n')
2421
basis.add_lines(key_basis, (), ['foo\n', 'bar\n'])
2422
basis_sha1sum = osutils.sha('foo\nbar\n').hexdigest()
2485
2423
basis.calls = []
2486
2424
sha1s = test.get_sha1s([key, key_missing, key_basis])
2487
2425
self.assertEqual({key: key_sha1sum,
2488
key_basis: basis_sha1sum}, sha1s)
2489
self.assertEqual([("get_sha1s", {key_basis, key_missing})],
2426
key_basis: basis_sha1sum}, sha1s)
2427
self.assertEqual([("get_sha1s", set([key_basis, key_missing]))],
2492
2430
def test_insert_record_stream(self):
2493
2431
# records are inserted as normal; insert_record_stream builds on
2494
2432
# add_lines, so a smoke test should be all that's needed:
2495
key_basis = (b'bar',)
2496
key_delta = (b'zaphod',)
2434
key_basis = ('bar',)
2435
key_delta = ('zaphod',)
2497
2436
basis, test = self.get_basis_and_test_knit()
2498
2437
source = self.make_test_knit(name='source')
2499
basis.add_lines(key_basis, (), [b'foo\n'])
2438
basis.add_lines(key_basis, (), ['foo\n'])
2500
2439
basis.calls = []
2501
source.add_lines(key_basis, (), [b'foo\n'])
2502
source.add_lines(key_delta, (key_basis,), [b'bar\n'])
2440
source.add_lines(key_basis, (), ['foo\n'])
2441
source.add_lines(key_delta, (key_basis,), ['bar\n'])
2503
2442
stream = source.get_record_stream([key_delta], 'unordered', False)
2504
2443
test.insert_record_stream(stream)
2505
2444
# XXX: this does somewhat too many calls in making sure of whether it
2506
2445
# has to recreate the full text.
2507
self.assertEqual([("get_parent_map", {key_basis}),
2508
('get_parent_map', {key_basis}),
2509
('get_record_stream', [key_basis], 'unordered', True)],
2511
self.assertEqual({key_delta: (key_basis,)},
2512
test.get_parent_map([key_delta]))
2513
self.assertEqual(b'bar\n', next(test.get_record_stream([key_delta],
2514
'unordered', True)).get_bytes_as('fulltext'))
2446
self.assertEqual([("get_parent_map", set([key_basis])),
2447
('get_parent_map', set([key_basis])),
2448
('get_record_stream', [key_basis], 'unordered', True)],
2450
self.assertEqual({key_delta:(key_basis,)},
2451
test.get_parent_map([key_delta]))
2452
self.assertEqual('bar\n', test.get_record_stream([key_delta],
2453
'unordered', True).next().get_bytes_as('fulltext'))
2516
2455
def test_iter_lines_added_or_present_in_keys(self):
2517
2456
# Lines from the basis are returned, and lines for a given key are only
2518
2457
# returned once.
2521
2460
# all sources are asked for keys:
2522
2461
basis, test = self.get_basis_and_test_knit()
2523
basis.add_lines(key1, (), [b"foo"])
2462
basis.add_lines(key1, (), ["foo"])
2524
2463
basis.calls = []
2525
2464
lines = list(test.iter_lines_added_or_present_in_keys([key1]))
2526
self.assertEqual([(b"foo\n", key1)], lines)
2527
self.assertEqual([("iter_lines_added_or_present_in_keys", {key1})],
2465
self.assertEqual([("foo\n", key1)], lines)
2466
self.assertEqual([("iter_lines_added_or_present_in_keys", set([key1]))],
2529
2468
# keys in both are not duplicated:
2530
test.add_lines(key2, (), [b"bar\n"])
2531
basis.add_lines(key2, (), [b"bar\n"])
2469
test.add_lines(key2, (), ["bar\n"])
2470
basis.add_lines(key2, (), ["bar\n"])
2532
2471
basis.calls = []
2533
2472
lines = list(test.iter_lines_added_or_present_in_keys([key2]))
2534
self.assertEqual([(b"bar\n", key2)], lines)
2473
self.assertEqual([("bar\n", key2)], lines)
2535
2474
self.assertEqual([], basis.calls)
2537
2476
def test_keys(self):
2540
2479
# all sources are asked for keys:
2541
2480
basis, test = self.get_basis_and_test_knit()
2542
2481
keys = test.keys()
2554
2493
basis.calls = []
2555
2494
keys = test.keys()
2556
2495
self.assertEqual(2, len(keys))
2557
self.assertEqual({key1, key2}, set(keys))
2496
self.assertEqual(set([key1, key2]), set(keys))
2558
2497
self.assertEqual([("keys",)], basis.calls)
2560
2499
def test_add_mpdiffs(self):
2561
2500
# records are inserted as normal; add_mpdiff builds on
2562
2501
# add_lines, so a smoke test should be all that's needed:
2563
key_basis = (b'bar',)
2564
key_delta = (b'zaphod',)
2503
key_basis = ('bar',)
2504
key_delta = ('zaphod',)
2565
2505
basis, test = self.get_basis_and_test_knit()
2566
2506
source = self.make_test_knit(name='source')
2567
basis.add_lines(key_basis, (), [b'foo\n'])
2507
basis.add_lines(key_basis, (), ['foo\n'])
2568
2508
basis.calls = []
2569
source.add_lines(key_basis, (), [b'foo\n'])
2570
source.add_lines(key_delta, (key_basis,), [b'bar\n'])
2509
source.add_lines(key_basis, (), ['foo\n'])
2510
source.add_lines(key_delta, (key_basis,), ['bar\n'])
2571
2511
diffs = source.make_mpdiffs([key_delta])
2572
2512
test.add_mpdiffs([(key_delta, (key_basis,),
2573
source.get_sha1s([key_delta])[key_delta], diffs[0])])
2574
self.assertEqual([("get_parent_map", {key_basis}),
2575
('get_record_stream', [key_basis], 'unordered', True), ],
2577
self.assertEqual({key_delta: (key_basis,)},
2578
test.get_parent_map([key_delta]))
2579
self.assertEqual(b'bar\n', next(test.get_record_stream([key_delta],
2580
'unordered', True)).get_bytes_as('fulltext'))
2513
source.get_sha1s([key_delta])[key_delta], diffs[0])])
2514
self.assertEqual([("get_parent_map", set([key_basis])),
2515
('get_record_stream', [key_basis], 'unordered', True),],
2517
self.assertEqual({key_delta:(key_basis,)},
2518
test.get_parent_map([key_delta]))
2519
self.assertEqual('bar\n', test.get_record_stream([key_delta],
2520
'unordered', True).next().get_bytes_as('fulltext'))
2582
2522
def test_make_mpdiffs(self):
2583
2523
# Generating an mpdiff across a stacking boundary should detect parent
2584
2524
# texts regions.
2586
key_left = (b'bar',)
2587
key_right = (b'zaphod',)
2527
key_right = ('zaphod',)
2588
2528
basis, test = self.get_basis_and_test_knit()
2589
basis.add_lines(key_left, (), [b'bar\n'])
2590
basis.add_lines(key_right, (), [b'zaphod\n'])
2529
basis.add_lines(key_left, (), ['bar\n'])
2530
basis.add_lines(key_right, (), ['zaphod\n'])
2591
2531
basis.calls = []
2592
2532
test.add_lines(key, (key_left, key_right),
2593
[b'bar\n', b'foo\n', b'zaphod\n'])
2533
['bar\n', 'foo\n', 'zaphod\n'])
2594
2534
diffs = test.make_mpdiffs([key])
2595
2535
self.assertEqual([
2596
2536
multiparent.MultiParent([multiparent.ParentText(0, 0, 0, 1),
2597
multiparent.NewText([b'foo\n']),
2598
multiparent.ParentText(1, 0, 2, 1)])],
2537
multiparent.NewText(['foo\n']),
2538
multiparent.ParentText(1, 0, 2, 1)])],
2600
2540
self.assertEqual(3, len(basis.calls))
2601
2541
self.assertEqual([
2602
("get_parent_map", {key_left, key_right}),
2603
("get_parent_map", {key_left, key_right}),
2542
("get_parent_map", set([key_left, key_right])),
2543
("get_parent_map", set([key_left, key_right])),
2605
2545
basis.calls[:-1])
2606
2546
last_call = basis.calls[-1]
2607
2547
self.assertEqual('get_record_stream', last_call[0])
2608
self.assertEqual({key_left, key_right}, set(last_call[1]))
2548
self.assertEqual(set([key_left, key_right]), set(last_call[1]))
2609
2549
self.assertEqual('topological', last_call[2])
2610
2550
self.assertEqual(True, last_call[3])
2616
2556
def test_include_delta_closure_generates_a_knit_delta_closure(self):
2617
2557
vf = self.make_test_knit(name='test')
2618
2558
# put in three texts, giving ft, delta, delta
2619
vf.add_lines((b'base',), (), [b'base\n', b'content\n'])
2620
vf.add_lines((b'd1',), ((b'base',),), [b'd1\n'])
2621
vf.add_lines((b'd2',), ((b'd1',),), [b'd2\n'])
2559
vf.add_lines(('base',), (), ['base\n', 'content\n'])
2560
vf.add_lines(('d1',), (('base',),), ['d1\n'])
2561
vf.add_lines(('d2',), (('d1',),), ['d2\n'])
2622
2562
# But heuristics could interfere, so check what happened:
2623
2563
self.assertEqual(['knit-ft-gz', 'knit-delta-gz', 'knit-delta-gz'],
2624
[record.storage_kind for record in
2625
vf.get_record_stream([(b'base',), (b'd1',), (b'd2',)],
2626
'topological', False)])
2564
[record.storage_kind for record in
2565
vf.get_record_stream([('base',), ('d1',), ('d2',)],
2566
'topological', False)])
2627
2567
# generate a stream of just the deltas include_delta_closure=True,
2628
2568
# serialise to the network, and check that we get a delta closure on the wire.
2629
stream = vf.get_record_stream(
2630
[(b'd1',), (b'd2',)], 'topological', True)
2569
stream = vf.get_record_stream([('d1',), ('d2',)], 'topological', True)
2631
2570
netb = [record.get_bytes_as(record.storage_kind) for record in stream]
2632
2571
# The first bytes should be a memo from _ContentMapGenerator, and the
2633
2572
# second bytes should be empty (because its a API proxy not something
2634
2573
# for wire serialisation.
2635
self.assertEqual(b'', netb[1])
2574
self.assertEqual('', netb[1])
2636
2575
bytes = netb[0]
2637
2576
kind, line_end = network_bytes_to_kind_and_offset(bytes)
2638
2577
self.assertEqual('knit-delta-closure', kind)
2644
2583
def test_get_record_stream_gives_records(self):
2645
2584
vf = self.make_test_knit(name='test')
2646
2585
# put in three texts, giving ft, delta, delta
2647
vf.add_lines((b'base',), (), [b'base\n', b'content\n'])
2648
vf.add_lines((b'd1',), ((b'base',),), [b'd1\n'])
2649
vf.add_lines((b'd2',), ((b'd1',),), [b'd2\n'])
2650
keys = [(b'd1',), (b'd2',)]
2586
vf.add_lines(('base',), (), ['base\n', 'content\n'])
2587
vf.add_lines(('d1',), (('base',),), ['d1\n'])
2588
vf.add_lines(('d2',), (('d1',),), ['d2\n'])
2589
keys = [('d1',), ('d2',)]
2651
2590
generator = _VFContentMapGenerator(vf, keys,
2652
global_map=vf.get_parent_map(keys))
2591
global_map=vf.get_parent_map(keys))
2653
2592
for record in generator.get_record_stream():
2654
if record.key == (b'd1',):
2655
self.assertEqual(b'd1\n', record.get_bytes_as('fulltext'))
2593
if record.key == ('d1',):
2594
self.assertEqual('d1\n', record.get_bytes_as('fulltext'))
2657
self.assertEqual(b'd2\n', record.get_bytes_as('fulltext'))
2596
self.assertEqual('d2\n', record.get_bytes_as('fulltext'))
2659
2598
def test_get_record_stream_kinds_are_raw(self):
2660
2599
vf = self.make_test_knit(name='test')
2661
2600
# put in three texts, giving ft, delta, delta
2662
vf.add_lines((b'base',), (), [b'base\n', b'content\n'])
2663
vf.add_lines((b'd1',), ((b'base',),), [b'd1\n'])
2664
vf.add_lines((b'd2',), ((b'd1',),), [b'd2\n'])
2665
keys = [(b'base',), (b'd1',), (b'd2',)]
2601
vf.add_lines(('base',), (), ['base\n', 'content\n'])
2602
vf.add_lines(('d1',), (('base',),), ['d1\n'])
2603
vf.add_lines(('d2',), (('d1',),), ['d2\n'])
2604
keys = [('base',), ('d1',), ('d2',)]
2666
2605
generator = _VFContentMapGenerator(vf, keys,
2667
global_map=vf.get_parent_map(keys))
2668
kinds = {(b'base',): 'knit-delta-closure',
2669
(b'd1',): 'knit-delta-closure-ref',
2670
(b'd2',): 'knit-delta-closure-ref',
2606
global_map=vf.get_parent_map(keys))
2607
kinds = {('base',): 'knit-delta-closure',
2608
('d1',): 'knit-delta-closure-ref',
2609
('d2',): 'knit-delta-closure-ref',
2672
2611
for record in generator.get_record_stream():
2673
2612
self.assertEqual(kinds[record.key], record.storage_kind)
added
removed
bzrlib/tests/test_knit.py
