462
340
writer = pack.ContainerWriter(write_data)
464
342
access.set_writer(writer, index, (transport, packname))
465
memos = access.add_raw_records([('key', 10)], '1234567890')
343
memos = access.add_raw_records([10], '1234567890')
467
345
self.assertEqual(['1234567890'], list(access.get_raw_records(memos)))
469
def test_missing_index_raises_retry(self):
470
memos = self.make_pack_file()
471
transport = self.get_transport()
472
reload_called, reload_func = self.make_reload_func()
473
# Note that the index key has changed from 'foo' to 'bar'
474
access = _DirectPackAccess({'bar':(transport, 'packname')},
475
reload_func=reload_func)
476
e = self.assertListRaises(errors.RetryWithNewPacks,
477
access.get_raw_records, memos)
478
# Because a key was passed in which does not match our index list, we
479
# assume that the listing was already reloaded
480
self.assertTrue(e.reload_occurred)
481
self.assertIsInstance(e.exc_info, tuple)
482
self.assertIs(e.exc_info[0], KeyError)
483
self.assertIsInstance(e.exc_info[1], KeyError)
485
def test_missing_index_raises_key_error_with_no_reload(self):
486
memos = self.make_pack_file()
487
transport = self.get_transport()
488
# Note that the index key has changed from 'foo' to 'bar'
489
access = _DirectPackAccess({'bar':(transport, 'packname')})
490
e = self.assertListRaises(KeyError, access.get_raw_records, memos)
492
def test_missing_file_raises_retry(self):
493
memos = self.make_pack_file()
494
transport = self.get_transport()
495
reload_called, reload_func = self.make_reload_func()
496
# Note that the 'filename' has been changed to 'different-packname'
497
access = _DirectPackAccess({'foo':(transport, 'different-packname')},
498
reload_func=reload_func)
499
e = self.assertListRaises(errors.RetryWithNewPacks,
500
access.get_raw_records, memos)
501
# The file has gone missing, so we assume we need to reload
502
self.assertFalse(e.reload_occurred)
503
self.assertIsInstance(e.exc_info, tuple)
504
self.assertIs(e.exc_info[0], errors.NoSuchFile)
505
self.assertIsInstance(e.exc_info[1], errors.NoSuchFile)
506
self.assertEqual('different-packname', e.exc_info[1].path)
508
def test_missing_file_raises_no_such_file_with_no_reload(self):
509
memos = self.make_pack_file()
510
transport = self.get_transport()
511
# Note that the 'filename' has been changed to 'different-packname'
512
access = _DirectPackAccess({'foo':(transport, 'different-packname')})
513
e = self.assertListRaises(errors.NoSuchFile,
514
access.get_raw_records, memos)
516
def test_failing_readv_raises_retry(self):
517
memos = self.make_pack_file()
518
transport = self.get_transport()
519
failing_transport = MockReadvFailingTransport(
520
[transport.get_bytes('packname')])
521
reload_called, reload_func = self.make_reload_func()
522
access = _DirectPackAccess({'foo':(failing_transport, 'packname')},
523
reload_func=reload_func)
524
# Asking for a single record will not trigger the Mock failure
525
self.assertEqual(['1234567890'],
526
list(access.get_raw_records(memos[:1])))
527
self.assertEqual(['12345'],
528
list(access.get_raw_records(memos[1:2])))
529
# A multiple offset readv() will fail mid-way through
530
e = self.assertListRaises(errors.RetryWithNewPacks,
531
access.get_raw_records, memos)
532
# The file has gone missing, so we assume we need to reload
533
self.assertFalse(e.reload_occurred)
534
self.assertIsInstance(e.exc_info, tuple)
535
self.assertIs(e.exc_info[0], errors.NoSuchFile)
536
self.assertIsInstance(e.exc_info[1], errors.NoSuchFile)
537
self.assertEqual('packname', e.exc_info[1].path)
539
def test_failing_readv_raises_no_such_file_with_no_reload(self):
540
memos = self.make_pack_file()
541
transport = self.get_transport()
542
failing_transport = MockReadvFailingTransport(
543
[transport.get_bytes('packname')])
544
reload_called, reload_func = self.make_reload_func()
545
access = _DirectPackAccess({'foo':(failing_transport, 'packname')})
546
# Asking for a single record will not trigger the Mock failure
547
self.assertEqual(['1234567890'],
548
list(access.get_raw_records(memos[:1])))
549
self.assertEqual(['12345'],
550
list(access.get_raw_records(memos[1:2])))
551
# A multiple offset readv() will fail mid-way through
552
e = self.assertListRaises(errors.NoSuchFile,
553
access.get_raw_records, memos)
555
def test_reload_or_raise_no_reload(self):
556
access = _DirectPackAccess({}, reload_func=None)
557
retry_exc = self.make_retry_exception()
558
# Without a reload_func, we will just re-raise the original exception
559
self.assertRaises(_TestException, access.reload_or_raise, retry_exc)
561
def test_reload_or_raise_reload_changed(self):
562
reload_called, reload_func = self.make_reload_func(return_val=True)
563
access = _DirectPackAccess({}, reload_func=reload_func)
564
retry_exc = self.make_retry_exception()
565
access.reload_or_raise(retry_exc)
566
self.assertEqual([1], reload_called)
567
retry_exc.reload_occurred=True
568
access.reload_or_raise(retry_exc)
569
self.assertEqual([2], reload_called)
571
def test_reload_or_raise_reload_no_change(self):
572
reload_called, reload_func = self.make_reload_func(return_val=False)
573
access = _DirectPackAccess({}, reload_func=reload_func)
574
retry_exc = self.make_retry_exception()
575
# If reload_occurred is False, then we consider it an error to have
576
# reload_func() return False (no changes).
577
self.assertRaises(_TestException, access.reload_or_raise, retry_exc)
578
self.assertEqual([1], reload_called)
579
retry_exc.reload_occurred=True
580
# If reload_occurred is True, then we assume nothing changed because
581
# it had changed earlier, but didn't change again
582
access.reload_or_raise(retry_exc)
583
self.assertEqual([2], reload_called)
585
def test_annotate_retries(self):
586
vf, reload_counter = self.make_vf_for_retrying()
587
# It is a little bit bogus to annotate the Revision VF, but it works,
588
# as we have ancestry stored there
590
reload_lines = vf.annotate(key)
591
self.assertEqual([1, 1, 0], reload_counter)
592
plain_lines = vf.annotate(key)
593
self.assertEqual([1, 1, 0], reload_counter) # No extra reloading
594
if reload_lines != plain_lines:
595
self.fail('Annotation was not identical with reloading.')
596
# Now delete the packs-in-use, which should trigger another reload, but
597
# this time we just raise an exception because we can't recover
598
for trans, name in vf._access._indices.itervalues():
600
self.assertRaises(errors.NoSuchFile, vf.annotate, key)
601
self.assertEqual([2, 1, 1], reload_counter)
603
def test__get_record_map_retries(self):
604
vf, reload_counter = self.make_vf_for_retrying()
605
keys = [('rev-1',), ('rev-2',), ('rev-3',)]
606
records = vf._get_record_map(keys)
607
self.assertEqual(keys, sorted(records.keys()))
608
self.assertEqual([1, 1, 0], reload_counter)
609
# Now delete the packs-in-use, which should trigger another reload, but
610
# this time we just raise an exception because we can't recover
611
for trans, name in vf._access._indices.itervalues():
613
self.assertRaises(errors.NoSuchFile, vf._get_record_map, keys)
614
self.assertEqual([2, 1, 1], reload_counter)
616
def test_get_record_stream_retries(self):
617
vf, reload_counter = self.make_vf_for_retrying()
618
keys = [('rev-1',), ('rev-2',), ('rev-3',)]
619
record_stream = vf.get_record_stream(keys, 'topological', False)
620
record = record_stream.next()
621
self.assertEqual(('rev-1',), record.key)
622
self.assertEqual([0, 0, 0], reload_counter)
623
record = record_stream.next()
624
self.assertEqual(('rev-2',), record.key)
625
self.assertEqual([1, 1, 0], reload_counter)
626
record = record_stream.next()
627
self.assertEqual(('rev-3',), record.key)
628
self.assertEqual([1, 1, 0], reload_counter)
629
# Now delete all pack files, and see that we raise the right error
630
for trans, name in vf._access._indices.itervalues():
632
self.assertListRaises(errors.NoSuchFile,
633
vf.get_record_stream, keys, 'topological', False)
635
def test_iter_lines_added_or_present_in_keys_retries(self):
636
vf, reload_counter = self.make_vf_for_retrying()
637
keys = [('rev-1',), ('rev-2',), ('rev-3',)]
638
# Unfortunately, iter_lines_added_or_present_in_keys iterates the
639
# result in random order (determined by the iteration order from a
640
# set()), so we don't have any solid way to trigger whether data is
641
# read before or after. However we tried to delete the middle node to
642
# exercise the code well.
643
# What we care about is that all lines are always yielded, but not
646
reload_lines = sorted(vf.iter_lines_added_or_present_in_keys(keys))
647
self.assertEqual([1, 1, 0], reload_counter)
648
# Now do it again, to make sure the result is equivalent
649
plain_lines = sorted(vf.iter_lines_added_or_present_in_keys(keys))
650
self.assertEqual([1, 1, 0], reload_counter) # No extra reloading
651
self.assertEqual(plain_lines, reload_lines)
652
self.assertEqual(21, len(plain_lines))
653
# Now delete all pack files, and see that we raise the right error
654
for trans, name in vf._access._indices.itervalues():
656
self.assertListRaises(errors.NoSuchFile,
657
vf.iter_lines_added_or_present_in_keys, keys)
658
self.assertEqual([2, 1, 1], reload_counter)
660
def test_get_record_stream_yields_disk_sorted_order(self):
661
# if we get 'unordered' pick a semi-optimal order for reading. The
662
# order should be grouped by pack file, and then by position in file
663
repo = self.make_repository('test', format='pack-0.92')
665
self.addCleanup(repo.unlock)
666
repo.start_write_group()
668
vf.add_lines(('f-id', 'rev-5'), [('f-id', 'rev-4')], ['lines\n'])
669
vf.add_lines(('f-id', 'rev-1'), [], ['lines\n'])
670
vf.add_lines(('f-id', 'rev-2'), [('f-id', 'rev-1')], ['lines\n'])
671
repo.commit_write_group()
672
# We inserted them as rev-5, rev-1, rev-2, we should get them back in
674
stream = vf.get_record_stream([('f-id', 'rev-1'), ('f-id', 'rev-5'),
675
('f-id', 'rev-2')], 'unordered', False)
676
keys = [r.key for r in stream]
677
self.assertEqual([('f-id', 'rev-5'), ('f-id', 'rev-1'),
678
('f-id', 'rev-2')], keys)
679
repo.start_write_group()
680
vf.add_lines(('f-id', 'rev-4'), [('f-id', 'rev-3')], ['lines\n'])
681
vf.add_lines(('f-id', 'rev-3'), [('f-id', 'rev-2')], ['lines\n'])
682
vf.add_lines(('f-id', 'rev-6'), [('f-id', 'rev-5')], ['lines\n'])
683
repo.commit_write_group()
684
# Request in random order, to make sure the output order isn't based on
686
request_keys = set(('f-id', 'rev-%d' % i) for i in range(1, 7))
687
stream = vf.get_record_stream(request_keys, 'unordered', False)
688
keys = [r.key for r in stream]
689
# We want to get the keys back in disk order, but it doesn't matter
690
# which pack we read from first. So this can come back in 2 orders
691
alt1 = [('f-id', 'rev-%d' % i) for i in [4, 3, 6, 5, 1, 2]]
692
alt2 = [('f-id', 'rev-%d' % i) for i in [5, 1, 2, 4, 3, 6]]
693
if keys != alt1 and keys != alt2:
694
self.fail('Returned key order did not match either expected order.'
695
' expected %s or %s, not %s'
696
% (alt1, alt2, keys))
699
348
class LowLevelKnitDataTests(TestCase):
848
454
# Change 2 bytes in the middle to \xff
849
455
gz_txt = gz_txt[:10] + '\xff\xff' + gz_txt[12:]
850
456
transport = MockTransport([gz_txt])
851
access = _KnitKeyAccess(transport, ConstantMapper('filename'))
852
knit = KnitVersionedFiles(None, access)
853
records = [(('rev-id-1',), (('rev-id-1',), 0, len(gz_txt)))]
854
self.assertRaises(errors.KnitCorrupt, list,
855
knit._read_records_iter(records))
856
# read_records_iter_raw will barf on bad gz data
857
self.assertRaises(errors.KnitCorrupt, list,
858
knit._read_records_iter_raw(records))
457
access = _KnitAccess(transport, 'filename', None, None, False, False)
458
data = _KnitData(access=access)
459
records = [('rev-id-1', (None, 0, len(gz_txt)))]
461
self.assertRaises(errors.KnitCorrupt, data.read_records, records)
463
# read_records_iter_raw will notice if we request the wrong version.
464
self.assertRaises(errors.KnitCorrupt, list,
465
data.read_records_iter_raw(records))
861
468
class LowLevelKnitIndexTests(TestCase):
863
def get_knit_index(self, transport, name, mode):
864
mapper = ConstantMapper(name)
470
def get_knit_index(self, *args, **kwargs):
471
orig = knit._load_data
473
knit._load_data = orig
474
self.addCleanup(reset)
865
475
from bzrlib._knit_load_data_py import _load_data_py
866
self.overrideAttr(knit, '_load_data', _load_data_py)
867
allow_writes = lambda: 'w' in mode
868
return _KndxIndex(transport, mapper, lambda:None, allow_writes, lambda:True)
476
knit._load_data = _load_data_py
477
return _KnitIndex(get_scope=lambda:None, *args, **kwargs)
479
def test_no_such_file(self):
480
transport = MockTransport()
482
self.assertRaises(NoSuchFile, self.get_knit_index,
483
transport, "filename", "r")
484
self.assertRaises(NoSuchFile, self.get_knit_index,
485
transport, "filename", "w", create=False)
870
487
def test_create_file(self):
871
488
transport = MockTransport()
872
index = self.get_knit_index(transport, "filename", "w")
874
call = transport.calls.pop(0)
875
# call[1][1] is a StringIO - we can't test it by simple equality.
876
self.assertEqual('put_file_non_atomic', call[0])
877
self.assertEqual('filename.kndx', call[1][0])
878
# With no history, _KndxIndex writes a new index:
879
self.assertEqual(_KndxIndex.HEADER,
880
call[1][1].getvalue())
881
self.assertEqual({'create_parent_dir': True}, call[2])
490
index = self.get_knit_index(transport, "filename", "w",
491
file_mode="wb", create=True)
493
("put_bytes_non_atomic",
494
("filename", index.HEADER), {"mode": "wb"}),
495
transport.calls.pop(0))
497
def test_delay_create_file(self):
498
transport = MockTransport()
500
index = self.get_knit_index(transport, "filename", "w",
501
create=True, file_mode="wb", create_parent_dir=True,
502
delay_create=True, dir_mode=0777)
503
self.assertEqual([], transport.calls)
505
index.add_versions([])
506
name, (filename, f), kwargs = transport.calls.pop(0)
507
self.assertEqual("put_file_non_atomic", name)
509
{"dir_mode": 0777, "create_parent_dir": True, "mode": "wb"},
511
self.assertEqual("filename", filename)
512
self.assertEqual(index.HEADER, f.read())
514
index.add_versions([])
515
self.assertEqual(("append_bytes", ("filename", ""), {}),
516
transport.calls.pop(0))
883
518
def test_read_utf8_version_id(self):
884
519
unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
885
520
utf8_revision_id = unicode_revision_id.encode('utf-8')
886
521
transport = MockTransport([
888
523
'%s option 0 1 :' % (utf8_revision_id,)
890
525
index = self.get_knit_index(transport, "filename", "r")
891
# _KndxIndex is a private class, and deals in utf8 revision_ids, not
526
# _KnitIndex is a private class, and deals in utf8 revision_ids, not
892
527
# Unicode revision_ids.
893
self.assertEqual({(utf8_revision_id,):()},
894
index.get_parent_map(index.keys()))
895
self.assertFalse((unicode_revision_id,) in index.keys())
528
self.assertTrue(index.has_version(utf8_revision_id))
529
self.assertFalse(index.has_version(unicode_revision_id))
897
531
def test_read_utf8_parents(self):
898
532
unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
899
533
utf8_revision_id = unicode_revision_id.encode('utf-8')
900
534
transport = MockTransport([
902
536
"version option 0 1 .%s :" % (utf8_revision_id,)
904
538
index = self.get_knit_index(transport, "filename", "r")
905
self.assertEqual({("version",):((utf8_revision_id,),)},
906
index.get_parent_map(index.keys()))
539
self.assertEqual((utf8_revision_id,),
540
index.get_parents_with_ghosts("version"))
908
542
def test_read_ignore_corrupted_lines(self):
909
543
transport = MockTransport([
912
546
"corrupted options 0 1 .b .c ",
913
547
"version options 0 1 :"
915
549
index = self.get_knit_index(transport, "filename", "r")
916
self.assertEqual(1, len(index.keys()))
917
self.assertEqual(set([("version",)]), index.keys())
550
self.assertEqual(1, index.num_versions())
551
self.assertTrue(index.has_version("version"))
919
553
def test_read_corrupted_header(self):
920
554
transport = MockTransport(['not a bzr knit index header\n'])
921
index = self.get_knit_index(transport, "filename", "r")
922
self.assertRaises(KnitHeaderError, index.keys)
555
self.assertRaises(KnitHeaderError,
556
self.get_knit_index, transport, "filename", "r")
924
558
def test_read_duplicate_entries(self):
925
559
transport = MockTransport([
927
561
"parent options 0 1 :",
928
562
"version options1 0 1 0 :",
929
563
"version options2 1 2 .other :",
930
564
"version options3 3 4 0 .other :"
932
566
index = self.get_knit_index(transport, "filename", "r")
933
self.assertEqual(2, len(index.keys()))
567
self.assertEqual(2, index.num_versions())
934
568
# check that the index used is the first one written. (Specific
935
569
# to KnitIndex style indices.
936
self.assertEqual("1", index._dictionary_compress([("version",)]))
937
self.assertEqual((("version",), 3, 4), index.get_position(("version",)))
938
self.assertEqual(["options3"], index.get_options(("version",)))
939
self.assertEqual({("version",):(("parent",), ("other",))},
940
index.get_parent_map([("version",)]))
570
self.assertEqual("1", index._version_list_to_index(["version"]))
571
self.assertEqual((None, 3, 4), index.get_position("version"))
572
self.assertEqual(["options3"], index.get_options("version"))
573
self.assertEqual(("parent", "other"),
574
index.get_parents_with_ghosts("version"))
942
576
def test_read_compressed_parents(self):
943
577
transport = MockTransport([
945
579
"a option 0 1 :",
946
580
"b option 0 1 0 :",
947
581
"c option 0 1 1 0 :",
949
583
index = self.get_knit_index(transport, "filename", "r")
950
self.assertEqual({("b",):(("a",),), ("c",):(("b",), ("a",))},
951
index.get_parent_map([("b",), ("c",)]))
584
self.assertEqual({"b":("a",), "c":("b", "a")},
585
index.get_parent_map(["b", "c"]))
953
587
def test_write_utf8_version_id(self):
954
588
unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
955
589
utf8_revision_id = unicode_revision_id.encode('utf-8')
956
590
transport = MockTransport([
959
593
index = self.get_knit_index(transport, "filename", "r")
961
((utf8_revision_id,), ["option"], ((utf8_revision_id,), 0, 1), [])])
962
call = transport.calls.pop(0)
963
# call[1][1] is a StringIO - we can't test it by simple equality.
964
self.assertEqual('put_file_non_atomic', call[0])
965
self.assertEqual('filename.kndx', call[1][0])
966
# With no history, _KndxIndex writes a new index:
967
self.assertEqual(_KndxIndex.HEADER +
968
"\n%s option 0 1 :" % (utf8_revision_id,),
969
call[1][1].getvalue())
970
self.assertEqual({'create_parent_dir': True}, call[2])
594
index.add_version(utf8_revision_id, ["option"], (None, 0, 1), [])
595
self.assertEqual(("append_bytes", ("filename",
596
"\n%s option 0 1 :" % (utf8_revision_id,)),
598
transport.calls.pop(0))
972
600
def test_write_utf8_parents(self):
973
601
unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
974
602
utf8_revision_id = unicode_revision_id.encode('utf-8')
975
603
transport = MockTransport([
978
index = self.get_knit_index(transport, "filename", "r")
980
(("version",), ["option"], (("version",), 0, 1), [(utf8_revision_id,)])])
981
call = transport.calls.pop(0)
982
# call[1][1] is a StringIO - we can't test it by simple equality.
983
self.assertEqual('put_file_non_atomic', call[0])
984
self.assertEqual('filename.kndx', call[1][0])
985
# With no history, _KndxIndex writes a new index:
986
self.assertEqual(_KndxIndex.HEADER +
987
"\nversion option 0 1 .%s :" % (utf8_revision_id,),
988
call[1][1].getvalue())
989
self.assertEqual({'create_parent_dir': True}, call[2])
992
transport = MockTransport([
995
index = self.get_knit_index(transport, "filename", "r")
997
self.assertEqual(set(), index.keys())
999
index.add_records([(("a",), ["option"], (("a",), 0, 1), [])])
1000
self.assertEqual(set([("a",)]), index.keys())
1002
index.add_records([(("a",), ["option"], (("a",), 0, 1), [])])
1003
self.assertEqual(set([("a",)]), index.keys())
1005
index.add_records([(("b",), ["option"], (("b",), 0, 1), [])])
1006
self.assertEqual(set([("a",), ("b",)]), index.keys())
1008
def add_a_b(self, index, random_id=None):
1010
if random_id is not None:
1011
kwargs["random_id"] = random_id
1013
(("a",), ["option"], (("a",), 0, 1), [("b",)]),
1014
(("a",), ["opt"], (("a",), 1, 2), [("c",)]),
1015
(("b",), ["option"], (("b",), 2, 3), [("a",)])
1018
def assertIndexIsAB(self, index):
1023
index.get_parent_map(index.keys()))
1024
self.assertEqual((("a",), 1, 2), index.get_position(("a",)))
1025
self.assertEqual((("b",), 2, 3), index.get_position(("b",)))
1026
self.assertEqual(["opt"], index.get_options(("a",)))
606
index = self.get_knit_index(transport, "filename", "r")
607
index.add_version("version", ["option"], (None, 0, 1), [utf8_revision_id])
608
self.assertEqual(("append_bytes", ("filename",
609
"\nversion option 0 1 .%s :" % (utf8_revision_id,)),
611
transport.calls.pop(0))
613
def test_get_ancestry(self):
614
transport = MockTransport([
617
"b option 0 1 0 .e :",
618
"c option 0 1 1 0 :",
619
"d option 0 1 2 .f :"
621
index = self.get_knit_index(transport, "filename", "r")
623
self.assertEqual([], index.get_ancestry([]))
624
self.assertEqual(["a"], index.get_ancestry(["a"]))
625
self.assertEqual(["a", "b"], index.get_ancestry(["b"]))
626
self.assertEqual(["a", "b", "c"], index.get_ancestry(["c"]))
627
self.assertEqual(["a", "b", "c", "d"], index.get_ancestry(["d"]))
628
self.assertEqual(["a", "b"], index.get_ancestry(["a", "b"]))
629
self.assertEqual(["a", "b", "c"], index.get_ancestry(["a", "c"]))
631
self.assertRaises(RevisionNotPresent, index.get_ancestry, ["e"])
633
def test_get_ancestry_with_ghosts(self):
634
transport = MockTransport([
637
"b option 0 1 0 .e :",
638
"c option 0 1 0 .f .g :",
639
"d option 0 1 2 .h .j .k :"
641
index = self.get_knit_index(transport, "filename", "r")
643
self.assertEqual([], index.get_ancestry_with_ghosts([]))
644
self.assertEqual(["a"], index.get_ancestry_with_ghosts(["a"]))
645
self.assertEqual(["a", "e", "b"],
646
index.get_ancestry_with_ghosts(["b"]))
647
self.assertEqual(["a", "g", "f", "c"],
648
index.get_ancestry_with_ghosts(["c"]))
649
self.assertEqual(["a", "g", "f", "c", "k", "j", "h", "d"],
650
index.get_ancestry_with_ghosts(["d"]))
651
self.assertEqual(["a", "e", "b"],
652
index.get_ancestry_with_ghosts(["a", "b"]))
653
self.assertEqual(["a", "g", "f", "c"],
654
index.get_ancestry_with_ghosts(["a", "c"]))
656
["a", "g", "f", "c", "e", "b", "k", "j", "h", "d"],
657
index.get_ancestry_with_ghosts(["b", "d"]))
659
self.assertRaises(RevisionNotPresent,
660
index.get_ancestry_with_ghosts, ["e"])
662
def test_num_versions(self):
663
transport = MockTransport([
666
index = self.get_knit_index(transport, "filename", "r")
668
self.assertEqual(0, index.num_versions())
669
self.assertEqual(0, len(index))
671
index.add_version("a", ["option"], (None, 0, 1), [])
672
self.assertEqual(1, index.num_versions())
673
self.assertEqual(1, len(index))
675
index.add_version("a", ["option2"], (None, 1, 2), [])
676
self.assertEqual(1, index.num_versions())
677
self.assertEqual(1, len(index))
679
index.add_version("b", ["option"], (None, 0, 1), [])
680
self.assertEqual(2, index.num_versions())
681
self.assertEqual(2, len(index))
683
def test_get_versions(self):
684
transport = MockTransport([
687
index = self.get_knit_index(transport, "filename", "r")
689
self.assertEqual([], index.get_versions())
691
index.add_version("a", ["option"], (None, 0, 1), [])
692
self.assertEqual(["a"], index.get_versions())
694
index.add_version("a", ["option"], (None, 0, 1), [])
695
self.assertEqual(["a"], index.get_versions())
697
index.add_version("b", ["option"], (None, 0, 1), [])
698
self.assertEqual(["a", "b"], index.get_versions())
700
def test_add_version(self):
701
transport = MockTransport([
704
index = self.get_knit_index(transport, "filename", "r")
706
index.add_version("a", ["option"], (None, 0, 1), ["b"])
707
self.assertEqual(("append_bytes",
708
("filename", "\na option 0 1 .b :"),
709
{}), transport.calls.pop(0))
710
self.assertTrue(index.has_version("a"))
711
self.assertEqual(1, index.num_versions())
712
self.assertEqual((None, 0, 1), index.get_position("a"))
713
self.assertEqual(["option"], index.get_options("a"))
714
self.assertEqual(("b",), index.get_parents_with_ghosts("a"))
716
index.add_version("a", ["opt"], (None, 1, 2), ["c"])
717
self.assertEqual(("append_bytes",
718
("filename", "\na opt 1 2 .c :"),
719
{}), transport.calls.pop(0))
720
self.assertTrue(index.has_version("a"))
721
self.assertEqual(1, index.num_versions())
722
self.assertEqual((None, 1, 2), index.get_position("a"))
723
self.assertEqual(["opt"], index.get_options("a"))
724
self.assertEqual(("c",), index.get_parents_with_ghosts("a"))
726
index.add_version("b", ["option"], (None, 2, 3), ["a"])
727
self.assertEqual(("append_bytes",
728
("filename", "\nb option 2 3 0 :"),
729
{}), transport.calls.pop(0))
730
self.assertTrue(index.has_version("b"))
731
self.assertEqual(2, index.num_versions())
732
self.assertEqual((None, 2, 3), index.get_position("b"))
733
self.assertEqual(["option"], index.get_options("b"))
734
self.assertEqual(("a",), index.get_parents_with_ghosts("b"))
1028
736
def test_add_versions(self):
1029
737
transport = MockTransport([
1032
740
index = self.get_knit_index(transport, "filename", "r")
1035
call = transport.calls.pop(0)
1036
# call[1][1] is a StringIO - we can't test it by simple equality.
1037
self.assertEqual('put_file_non_atomic', call[0])
1038
self.assertEqual('filename.kndx', call[1][0])
1039
# With no history, _KndxIndex writes a new index:
743
("a", ["option"], (None, 0, 1), ["b"]),
744
("a", ["opt"], (None, 1, 2), ["c"]),
745
("b", ["option"], (None, 2, 3), ["a"])
747
self.assertEqual(("append_bytes", ("filename",
1042
748
"\na option 0 1 .b :"
1043
749
"\na opt 1 2 .c :"
1044
"\nb option 2 3 0 :",
1045
call[1][1].getvalue())
1046
self.assertEqual({'create_parent_dir': True}, call[2])
1047
self.assertIndexIsAB(index)
751
), {}), transport.calls.pop(0))
752
self.assertTrue(index.has_version("a"))
753
self.assertTrue(index.has_version("b"))
754
self.assertEqual(2, index.num_versions())
755
self.assertEqual((None, 1, 2), index.get_position("a"))
756
self.assertEqual((None, 2, 3), index.get_position("b"))
757
self.assertEqual(["opt"], index.get_options("a"))
758
self.assertEqual(["option"], index.get_options("b"))
759
self.assertEqual(("c",), index.get_parents_with_ghosts("a"))
760
self.assertEqual(("a",), index.get_parents_with_ghosts("b"))
1049
762
def test_add_versions_random_id_is_accepted(self):
1050
763
transport = MockTransport([
1053
766
index = self.get_knit_index(transport, "filename", "r")
1054
self.add_a_b(index, random_id=True)
769
("a", ["option"], (None, 0, 1), ["b"]),
770
("a", ["opt"], (None, 1, 2), ["c"]),
771
("b", ["option"], (None, 2, 3), ["a"])
1056
774
def test_delay_create_and_add_versions(self):
1057
775
transport = MockTransport()
1059
index = self.get_knit_index(transport, "filename", "w")
777
index = self.get_knit_index(transport, "filename", "w",
778
create=True, file_mode="wb", create_parent_dir=True,
779
delay_create=True, dir_mode=0777)
1061
780
self.assertEqual([], transport.calls)
1064
#[ {"dir_mode": 0777, "create_parent_dir": True, "mode": "wb"},
1066
# Two calls: one during which we load the existing index (and when its
1067
# missing create it), then a second where we write the contents out.
1068
self.assertEqual(2, len(transport.calls))
1069
call = transport.calls.pop(0)
1070
self.assertEqual('put_file_non_atomic', call[0])
1071
self.assertEqual('filename.kndx', call[1][0])
1072
# With no history, _KndxIndex writes a new index:
1073
self.assertEqual(_KndxIndex.HEADER, call[1][1].getvalue())
1074
self.assertEqual({'create_parent_dir': True}, call[2])
1075
call = transport.calls.pop(0)
1076
# call[1][1] is a StringIO - we can't test it by simple equality.
1077
self.assertEqual('put_file_non_atomic', call[0])
1078
self.assertEqual('filename.kndx', call[1][0])
1079
# With no history, _KndxIndex writes a new index:
783
("a", ["option"], (None, 0, 1), ["b"]),
784
("a", ["opt"], (None, 1, 2), ["c"]),
785
("b", ["option"], (None, 2, 3), ["a"])
787
name, (filename, f), kwargs = transport.calls.pop(0)
788
self.assertEqual("put_file_non_atomic", name)
790
{"dir_mode": 0777, "create_parent_dir": True, "mode": "wb"},
792
self.assertEqual("filename", filename)
1082
795
"\na option 0 1 .b :"
1083
796
"\na opt 1 2 .c :"
1084
797
"\nb option 2 3 0 :",
1085
call[1][1].getvalue())
1086
self.assertEqual({'create_parent_dir': True}, call[2])
1088
def assertTotalBuildSize(self, size, keys, positions):
1089
self.assertEqual(size,
1090
knit._get_total_build_size(None, keys, positions))
1092
def test__get_total_build_size(self):
1094
('a',): (('fulltext', False), (('a',), 0, 100), None),
1095
('b',): (('line-delta', False), (('b',), 100, 21), ('a',)),
1096
('c',): (('line-delta', False), (('c',), 121, 35), ('b',)),
1097
('d',): (('line-delta', False), (('d',), 156, 12), ('b',)),
1099
self.assertTotalBuildSize(100, [('a',)], positions)
1100
self.assertTotalBuildSize(121, [('b',)], positions)
1101
# c needs both a & b
1102
self.assertTotalBuildSize(156, [('c',)], positions)
1103
# we shouldn't count 'b' twice
1104
self.assertTotalBuildSize(156, [('b',), ('c',)], positions)
1105
self.assertTotalBuildSize(133, [('d',)], positions)
1106
self.assertTotalBuildSize(168, [('c',), ('d',)], positions)
800
def test_has_version(self):
801
transport = MockTransport([
805
index = self.get_knit_index(transport, "filename", "r")
807
self.assertTrue(index.has_version("a"))
808
self.assertFalse(index.has_version("b"))
1108
810
def test_get_position(self):
1109
811
transport = MockTransport([
1111
813
"a option 0 1 :",
1112
814
"b option 1 2 :"
1114
816
index = self.get_knit_index(transport, "filename", "r")
1116
self.assertEqual((("a",), 0, 1), index.get_position(("a",)))
1117
self.assertEqual((("b",), 1, 2), index.get_position(("b",)))
818
self.assertEqual((None, 0, 1), index.get_position("a"))
819
self.assertEqual((None, 1, 2), index.get_position("b"))
1119
821
def test_get_method(self):
1120
822
transport = MockTransport([
1122
824
"a fulltext,unknown 0 1 :",
1123
825
"b unknown,line-delta 1 2 :",
1254
def test_scan_unvalidated_index_not_implemented(self):
1255
transport = MockTransport()
1256
index = self.get_knit_index(transport, 'filename', 'r')
1258
NotImplementedError, index.scan_unvalidated_index,
1259
'dummy graph_index')
1261
NotImplementedError, index.get_missing_compression_parents)
1263
987
def test_short_line(self):
1264
988
transport = MockTransport([
1266
990
"a option 0 10 :",
1267
991
"b option 10 10 0", # This line isn't terminated, ignored
1269
993
index = self.get_knit_index(transport, "filename", "r")
1270
self.assertEqual(set([('a',)]), index.keys())
994
self.assertEqual(['a'], index.get_versions())
1272
996
def test_skip_incomplete_record(self):
1273
997
# A line with bogus data should just be skipped
1274
998
transport = MockTransport([
1276
1000
"a option 0 10 :",
1277
1001
"b option 10 10 0", # This line isn't terminated, ignored
1278
1002
"c option 20 10 0 :", # Properly terminated, and starts with '\n'
1280
1004
index = self.get_knit_index(transport, "filename", "r")
1281
self.assertEqual(set([('a',), ('c',)]), index.keys())
1005
self.assertEqual(['a', 'c'], index.get_versions())
1283
1007
def test_trailing_characters(self):
1284
1008
# A line with bogus data should just be skipped
1285
1009
transport = MockTransport([
1287
1011
"a option 0 10 :",
1288
1012
"b option 10 10 0 :a", # This line has extra trailing characters
1289
1013
"c option 20 10 0 :", # Properly terminated, and starts with '\n'
1291
1015
index = self.get_knit_index(transport, "filename", "r")
1292
self.assertEqual(set([('a',), ('c',)]), index.keys())
1016
self.assertEqual(['a', 'c'], index.get_versions())
1295
1019
class LowLevelKnitIndexTests_c(LowLevelKnitIndexTests):
1297
_test_needs_features = [compiled_knit_feature]
1299
def get_knit_index(self, transport, name, mode):
1300
mapper = ConstantMapper(name)
1301
from bzrlib._knit_load_data_pyx import _load_data_c
1302
self.overrideAttr(knit, '_load_data', _load_data_c)
1303
allow_writes = lambda: mode == 'w'
1304
return _KndxIndex(transport, mapper, lambda:None,
1305
allow_writes, lambda:True)
1308
class Test_KnitAnnotator(TestCaseWithMemoryTransport):
1310
def make_annotator(self):
1311
factory = knit.make_pack_factory(True, True, 1)
1312
vf = factory(self.get_transport())
1313
return knit._KnitAnnotator(vf)
1315
def test__expand_fulltext(self):
1316
ann = self.make_annotator()
1317
rev_key = ('rev-id',)
1318
ann._num_compression_children[rev_key] = 1
1319
res = ann._expand_record(rev_key, (('parent-id',),), None,
1320
['line1\n', 'line2\n'], ('fulltext', True))
1321
# The content object and text lines should be cached appropriately
1322
self.assertEqual(['line1\n', 'line2'], res)
1323
content_obj = ann._content_objects[rev_key]
1324
self.assertEqual(['line1\n', 'line2\n'], content_obj._lines)
1325
self.assertEqual(res, content_obj.text())
1326
self.assertEqual(res, ann._text_cache[rev_key])
1328
def test__expand_delta_comp_parent_not_available(self):
1329
# Parent isn't available yet, so we return nothing, but queue up this
1330
# node for later processing
1331
ann = self.make_annotator()
1332
rev_key = ('rev-id',)
1333
parent_key = ('parent-id',)
1334
record = ['0,1,1\n', 'new-line\n']
1335
details = ('line-delta', False)
1336
res = ann._expand_record(rev_key, (parent_key,), parent_key,
1338
self.assertEqual(None, res)
1339
self.assertTrue(parent_key in ann._pending_deltas)
1340
pending = ann._pending_deltas[parent_key]
1341
self.assertEqual(1, len(pending))
1342
self.assertEqual((rev_key, (parent_key,), record, details), pending[0])
1344
def test__expand_record_tracks_num_children(self):
1345
ann = self.make_annotator()
1346
rev_key = ('rev-id',)
1347
rev2_key = ('rev2-id',)
1348
parent_key = ('parent-id',)
1349
record = ['0,1,1\n', 'new-line\n']
1350
details = ('line-delta', False)
1351
ann._num_compression_children[parent_key] = 2
1352
ann._expand_record(parent_key, (), None, ['line1\n', 'line2\n'],
1353
('fulltext', False))
1354
res = ann._expand_record(rev_key, (parent_key,), parent_key,
1356
self.assertEqual({parent_key: 1}, ann._num_compression_children)
1357
# Expanding the second child should remove the content object, and the
1358
# num_compression_children entry
1359
res = ann._expand_record(rev2_key, (parent_key,), parent_key,
1361
self.assertFalse(parent_key in ann._content_objects)
1362
self.assertEqual({}, ann._num_compression_children)
1363
# We should not cache the content_objects for rev2 and rev, because
1364
# they do not have compression children of their own.
1365
self.assertEqual({}, ann._content_objects)
1367
def test__expand_delta_records_blocks(self):
1368
ann = self.make_annotator()
1369
rev_key = ('rev-id',)
1370
parent_key = ('parent-id',)
1371
record = ['0,1,1\n', 'new-line\n']
1372
details = ('line-delta', True)
1373
ann._num_compression_children[parent_key] = 2
1374
ann._expand_record(parent_key, (), None,
1375
['line1\n', 'line2\n', 'line3\n'],
1376
('fulltext', False))
1377
ann._expand_record(rev_key, (parent_key,), parent_key, record, details)
1378
self.assertEqual({(rev_key, parent_key): [(1, 1, 1), (3, 3, 0)]},
1379
ann._matching_blocks)
1380
rev2_key = ('rev2-id',)
1381
record = ['0,1,1\n', 'new-line\n']
1382
details = ('line-delta', False)
1383
ann._expand_record(rev2_key, (parent_key,), parent_key, record, details)
1384
self.assertEqual([(1, 1, 2), (3, 3, 0)],
1385
ann._matching_blocks[(rev2_key, parent_key)])
1387
def test__get_parent_ann_uses_matching_blocks(self):
1388
ann = self.make_annotator()
1389
rev_key = ('rev-id',)
1390
parent_key = ('parent-id',)
1391
parent_ann = [(parent_key,)]*3
1392
block_key = (rev_key, parent_key)
1393
ann._annotations_cache[parent_key] = parent_ann
1394
ann._matching_blocks[block_key] = [(0, 1, 1), (3, 3, 0)]
1395
# We should not try to access any parent_lines content, because we know
1396
# we already have the matching blocks
1397
par_ann, blocks = ann._get_parent_annotations_and_matches(rev_key,
1398
['1\n', '2\n', '3\n'], parent_key)
1399
self.assertEqual(parent_ann, par_ann)
1400
self.assertEqual([(0, 1, 1), (3, 3, 0)], blocks)
1401
self.assertEqual({}, ann._matching_blocks)
1403
def test__process_pending(self):
1404
ann = self.make_annotator()
1405
rev_key = ('rev-id',)
1408
record = ['0,1,1\n', 'new-line\n']
1409
details = ('line-delta', False)
1410
p1_record = ['line1\n', 'line2\n']
1411
ann._num_compression_children[p1_key] = 1
1412
res = ann._expand_record(rev_key, (p1_key,p2_key), p1_key,
1414
self.assertEqual(None, res)
1415
# self.assertTrue(p1_key in ann._pending_deltas)
1416
self.assertEqual({}, ann._pending_annotation)
1417
# Now insert p1, and we should be able to expand the delta
1418
res = ann._expand_record(p1_key, (), None, p1_record,
1419
('fulltext', False))
1420
self.assertEqual(p1_record, res)
1421
ann._annotations_cache[p1_key] = [(p1_key,)]*2
1422
res = ann._process_pending(p1_key)
1423
self.assertEqual([], res)
1424
self.assertFalse(p1_key in ann._pending_deltas)
1425
self.assertTrue(p2_key in ann._pending_annotation)
1426
self.assertEqual({p2_key: [(rev_key, (p1_key, p2_key))]},
1427
ann._pending_annotation)
1428
# Now fill in parent 2, and pending annotation should be satisfied
1429
res = ann._expand_record(p2_key, (), None, [], ('fulltext', False))
1430
ann._annotations_cache[p2_key] = []
1431
res = ann._process_pending(p2_key)
1432
self.assertEqual([rev_key], res)
1433
self.assertEqual({}, ann._pending_annotation)
1434
self.assertEqual({}, ann._pending_deltas)
1436
def test_record_delta_removes_basis(self):
1437
ann = self.make_annotator()
1438
ann._expand_record(('parent-id',), (), None,
1439
['line1\n', 'line2\n'], ('fulltext', False))
1440
ann._num_compression_children['parent-id'] = 2
1442
def test_annotate_special_text(self):
1443
ann = self.make_annotator()
1445
rev1_key = ('rev-1',)
1446
rev2_key = ('rev-2',)
1447
rev3_key = ('rev-3',)
1448
spec_key = ('special:',)
1449
vf.add_lines(rev1_key, [], ['initial content\n'])
1450
vf.add_lines(rev2_key, [rev1_key], ['initial content\n',
1453
vf.add_lines(rev3_key, [rev1_key], ['initial content\n',
1456
spec_text = ('initial content\n'
1460
ann.add_special_text(spec_key, [rev2_key, rev3_key], spec_text)
1461
anns, lines = ann.annotate(spec_key)
1462
self.assertEqual([(rev1_key,),
1463
(rev2_key, rev3_key),
1467
self.assertEqualDiff(spec_text, ''.join(lines))
1021
_test_needs_features = [CompiledKnitFeature]
1023
def get_knit_index(self, *args, **kwargs):
1024
orig = knit._load_data
1026
knit._load_data = orig
1027
self.addCleanup(reset)
1028
from bzrlib._knit_load_data_c import _load_data_c
1029
knit._load_data = _load_data_c
1030
return _KnitIndex(get_scope=lambda:None, *args, **kwargs)
1470
1033
class KnitTests(TestCaseWithTransport):
1471
1034
"""Class containing knit test helper routines."""
1473
def make_test_knit(self, annotate=False, name='test'):
1474
mapper = ConstantMapper(name)
1475
return make_file_factory(annotate, mapper)(self.get_transport())
1478
class TestBadShaError(KnitTests):
1479
"""Tests for handling of sha errors."""
1481
def test_sha_exception_has_text(self):
1482
# having the failed text included in the error allows for recovery.
1483
source = self.make_test_knit()
1484
target = self.make_test_knit(name="target")
1485
if not source._max_delta_chain:
1486
raise TestNotApplicable(
1487
"cannot get delta-caused sha failures without deltas.")
1490
broken = ('broken',)
1491
source.add_lines(basis, (), ['foo\n'])
1492
source.add_lines(broken, (basis,), ['foo\n', 'bar\n'])
1493
# Seed target with a bad basis text
1494
target.add_lines(basis, (), ['gam\n'])
1495
target.insert_record_stream(
1496
source.get_record_stream([broken], 'unordered', False))
1497
err = self.assertRaises(errors.KnitCorrupt,
1498
target.get_record_stream([broken], 'unordered', True
1499
).next().get_bytes_as, 'chunked')
1500
self.assertEqual(['gam\n', 'bar\n'], err.content)
1501
# Test for formatting with live data
1502
self.assertStartsWith(str(err), "Knit ")
1036
def make_test_knit(self, annotate=False, delay_create=False, index=None,
1037
name='test', delta=True, access_mode='w'):
1039
factory = KnitPlainFactory()
1043
index = _KnitIndex(get_transport('.'), name + INDEX_SUFFIX,
1044
access_mode, create=True, file_mode=None,
1045
create_parent_dir=False, delay_create=delay_create,
1046
dir_mode=None, get_scope=lambda:None)
1047
access = _KnitAccess(get_transport('.'), name + DATA_SUFFIX, None,
1048
None, delay_create, False)
1049
return KnitVersionedFile(name, get_transport('.'), factory=factory,
1050
create=True, delay_create=delay_create, index=index,
1051
access_method=access, delta=delta)
1053
def assertRecordContentEqual(self, knit, version_id, candidate_content):
1054
"""Assert that some raw record content matches the raw record content
1055
for a particular version_id in the given knit.
1057
index_memo = knit._index.get_position(version_id)
1058
record = (version_id, index_memo)
1059
[(_, expected_content, _)] = list(knit._data.read_records_iter_raw([record]))
1060
self.assertEqual(expected_content, candidate_content)
1063
class BasicKnitTests(KnitTests):
1065
def add_stock_one_and_one_a(self, k):
1066
k.add_lines('text-1', [], split_lines(TEXT_1))
1067
k.add_lines('text-1a', ['text-1'], split_lines(TEXT_1A))
1069
def test_knit_constructor(self):
1070
"""Construct empty k"""
1071
self.make_test_knit()
1073
def test_make_explicit_index(self):
1074
"""We can supply an index to use."""
1075
knit = KnitVersionedFile('test', get_transport('.'),
1076
index='strangelove', access_method="a")
1077
self.assertEqual(knit._index, 'strangelove')
1079
def test_knit_add(self):
1080
"""Store one text in knit and retrieve"""
1081
k = self.make_test_knit()
1082
k.add_lines('text-1', [], split_lines(TEXT_1))
1083
self.assertTrue(k.has_version('text-1'))
1084
self.assertEqualDiff(''.join(k.get_lines('text-1')), TEXT_1)
1086
def test_newline_empty_lines(self):
1087
# ensure that ["\n"] round trips ok.
1088
knit = self.make_test_knit()
1089
knit.add_lines('a', [], ["\n"])
1090
knit.add_lines_with_ghosts('b', [], ["\n"])
1091
self.assertEqual(["\n"], knit.get_lines('a'))
1092
self.assertEqual(["\n"], knit.get_lines('b'))
1093
self.assertEqual(['fulltext'], knit._index.get_options('a'))
1094
self.assertEqual(['fulltext'], knit._index.get_options('b'))
1095
knit.add_lines('c', ['a'], ["\n"])
1096
knit.add_lines_with_ghosts('d', ['b'], ["\n"])
1097
self.assertEqual(["\n"], knit.get_lines('c'))
1098
self.assertEqual(["\n"], knit.get_lines('d'))
1099
self.assertEqual(['line-delta'], knit._index.get_options('c'))
1100
self.assertEqual(['line-delta'], knit._index.get_options('d'))
1102
def test_empty_lines(self):
1103
# bizarrely, [] is not listed as having no-eol.
1104
knit = self.make_test_knit()
1105
knit.add_lines('a', [], [])
1106
knit.add_lines_with_ghosts('b', [], [])
1107
self.assertEqual([], knit.get_lines('a'))
1108
self.assertEqual([], knit.get_lines('b'))
1109
self.assertEqual(['fulltext'], knit._index.get_options('a'))
1110
self.assertEqual(['fulltext'], knit._index.get_options('b'))
1111
knit.add_lines('c', ['a'], [])
1112
knit.add_lines_with_ghosts('d', ['b'], [])
1113
self.assertEqual([], knit.get_lines('c'))
1114
self.assertEqual([], knit.get_lines('d'))
1115
self.assertEqual(['line-delta'], knit._index.get_options('c'))
1116
self.assertEqual(['line-delta'], knit._index.get_options('d'))
1118
def test_knit_reload(self):
1119
# test that the content in a reloaded knit is correct
1120
k = self.make_test_knit()
1121
k.add_lines('text-1', [], split_lines(TEXT_1))
1123
k2 = make_file_knit('test', get_transport('.'), access_mode='r',
1124
factory=KnitPlainFactory(), create=True)
1125
self.assertTrue(k2.has_version('text-1'))
1126
self.assertEqualDiff(''.join(k2.get_lines('text-1')), TEXT_1)
1128
def test_knit_several(self):
1129
"""Store several texts in a knit"""
1130
k = self.make_test_knit()
1131
k.add_lines('text-1', [], split_lines(TEXT_1))
1132
k.add_lines('text-2', [], split_lines(TEXT_2))
1133
self.assertEqualDiff(''.join(k.get_lines('text-1')), TEXT_1)
1134
self.assertEqualDiff(''.join(k.get_lines('text-2')), TEXT_2)
1136
def test_repeated_add(self):
1137
"""Knit traps attempt to replace existing version"""
1138
k = self.make_test_knit()
1139
k.add_lines('text-1', [], split_lines(TEXT_1))
1140
self.assertRaises(RevisionAlreadyPresent,
1142
'text-1', [], split_lines(TEXT_1))
1144
def test_empty(self):
1145
k = self.make_test_knit(True)
1146
k.add_lines('text-1', [], [])
1147
self.assertEquals(k.get_lines('text-1'), [])
1149
def test_incomplete(self):
1150
"""Test if texts without a ending line-end can be inserted and
1152
k = make_file_knit('test', get_transport('.'), delta=False, create=True)
1153
k.add_lines('text-1', [], ['a\n', 'b' ])
1154
k.add_lines('text-2', ['text-1'], ['a\rb\n', 'b\n'])
1155
# reopening ensures maximum room for confusion
1156
k = make_file_knit('test', get_transport('.'), delta=False, create=True)
1157
self.assertEquals(k.get_lines('text-1'), ['a\n', 'b' ])
1158
self.assertEquals(k.get_lines('text-2'), ['a\rb\n', 'b\n'])
1160
def test_delta(self):
1161
"""Expression of knit delta as lines"""
1162
k = self.make_test_knit()
1163
td = list(line_delta(TEXT_1.splitlines(True),
1164
TEXT_1A.splitlines(True)))
1165
self.assertEqualDiff(''.join(td), delta_1_1a)
1166
out = apply_line_delta(TEXT_1.splitlines(True), td)
1167
self.assertEqualDiff(''.join(out), TEXT_1A)
1169
def test_add_with_parents(self):
1170
"""Store in knit with parents"""
1171
k = self.make_test_knit()
1172
self.add_stock_one_and_one_a(k)
1173
self.assertEqual({'text-1':(), 'text-1a':('text-1',)},
1174
k.get_parent_map(['text-1', 'text-1a']))
1176
def test_ancestry(self):
1177
"""Store in knit with parents"""
1178
k = self.make_test_knit()
1179
self.add_stock_one_and_one_a(k)
1180
self.assertEquals(set(k.get_ancestry(['text-1a'])), set(['text-1a', 'text-1']))
1182
def test_add_delta(self):
1183
"""Store in knit with parents"""
1184
k = self.make_test_knit(annotate=False)
1185
self.add_stock_one_and_one_a(k)
1186
self.assertEqualDiff(''.join(k.get_lines('text-1a')), TEXT_1A)
1188
def test_add_delta_knit_graph_index(self):
1189
"""Does adding work with a KnitGraphIndex."""
1190
index = InMemoryGraphIndex(2)
1191
knit_index = KnitGraphIndex(index, add_callback=index.add_nodes,
1193
k = self.make_test_knit(annotate=True, index=knit_index)
1194
self.add_stock_one_and_one_a(k)
1195
self.assertEqualDiff(''.join(k.get_lines('text-1a')), TEXT_1A)
1196
# check the index had the right data added.
1197
self.assertEqual(set([
1198
(index, ('text-1', ), ' 0 127', ((), ())),
1199
(index, ('text-1a', ), ' 127 140', ((('text-1', ),), (('text-1', ),))),
1200
]), set(index.iter_all_entries()))
1201
# we should not have a .kndx file
1202
self.assertFalse(get_transport('.').has('test.kndx'))
1204
def test_annotate(self):
1206
k = self.make_test_knit(annotate=True, name='knit')
1207
self.insert_and_test_small_annotate(k)
1209
def insert_and_test_small_annotate(self, k):
1210
"""test annotation with k works correctly."""
1211
k.add_lines('text-1', [], ['a\n', 'b\n'])
1212
k.add_lines('text-2', ['text-1'], ['a\n', 'c\n'])
1214
origins = k.annotate('text-2')
1215
self.assertEquals(origins[0], ('text-1', 'a\n'))
1216
self.assertEquals(origins[1], ('text-2', 'c\n'))
1218
def test_annotate_fulltext(self):
1220
k = self.make_test_knit(annotate=True, name='knit', delta=False)
1221
self.insert_and_test_small_annotate(k)
1223
def test_annotate_merge_1(self):
1224
k = self.make_test_knit(True)
1225
k.add_lines('text-a1', [], ['a\n', 'b\n'])
1226
k.add_lines('text-a2', [], ['d\n', 'c\n'])
1227
k.add_lines('text-am', ['text-a1', 'text-a2'], ['d\n', 'b\n'])
1228
origins = k.annotate('text-am')
1229
self.assertEquals(origins[0], ('text-a2', 'd\n'))
1230
self.assertEquals(origins[1], ('text-a1', 'b\n'))
1232
def test_annotate_merge_2(self):
1233
k = self.make_test_knit(True)
1234
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1235
k.add_lines('text-a2', [], ['x\n', 'y\n', 'z\n'])
1236
k.add_lines('text-am', ['text-a1', 'text-a2'], ['a\n', 'y\n', 'c\n'])
1237
origins = k.annotate('text-am')
1238
self.assertEquals(origins[0], ('text-a1', 'a\n'))
1239
self.assertEquals(origins[1], ('text-a2', 'y\n'))
1240
self.assertEquals(origins[2], ('text-a1', 'c\n'))
1242
def test_annotate_merge_9(self):
1243
k = self.make_test_knit(True)
1244
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1245
k.add_lines('text-a2', [], ['x\n', 'y\n', 'z\n'])
1246
k.add_lines('text-am', ['text-a1', 'text-a2'], ['k\n', 'y\n', 'c\n'])
1247
origins = k.annotate('text-am')
1248
self.assertEquals(origins[0], ('text-am', 'k\n'))
1249
self.assertEquals(origins[1], ('text-a2', 'y\n'))
1250
self.assertEquals(origins[2], ('text-a1', 'c\n'))
1252
def test_annotate_merge_3(self):
1253
k = self.make_test_knit(True)
1254
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1255
k.add_lines('text-a2', [] ,['x\n', 'y\n', 'z\n'])
1256
k.add_lines('text-am', ['text-a1', 'text-a2'], ['k\n', 'y\n', 'z\n'])
1257
origins = k.annotate('text-am')
1258
self.assertEquals(origins[0], ('text-am', 'k\n'))
1259
self.assertEquals(origins[1], ('text-a2', 'y\n'))
1260
self.assertEquals(origins[2], ('text-a2', 'z\n'))
1262
def test_annotate_merge_4(self):
1263
k = self.make_test_knit(True)
1264
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1265
k.add_lines('text-a2', [], ['x\n', 'y\n', 'z\n'])
1266
k.add_lines('text-a3', ['text-a1'], ['a\n', 'b\n', 'p\n'])
1267
k.add_lines('text-am', ['text-a2', 'text-a3'], ['a\n', 'b\n', 'z\n'])
1268
origins = k.annotate('text-am')
1269
self.assertEquals(origins[0], ('text-a1', 'a\n'))
1270
self.assertEquals(origins[1], ('text-a1', 'b\n'))
1271
self.assertEquals(origins[2], ('text-a2', 'z\n'))
1273
def test_annotate_merge_5(self):
1274
k = self.make_test_knit(True)
1275
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1276
k.add_lines('text-a2', [], ['d\n', 'e\n', 'f\n'])
1277
k.add_lines('text-a3', [], ['x\n', 'y\n', 'z\n'])
1278
k.add_lines('text-am',
1279
['text-a1', 'text-a2', 'text-a3'],
1280
['a\n', 'e\n', 'z\n'])
1281
origins = k.annotate('text-am')
1282
self.assertEquals(origins[0], ('text-a1', 'a\n'))
1283
self.assertEquals(origins[1], ('text-a2', 'e\n'))
1284
self.assertEquals(origins[2], ('text-a3', 'z\n'))
1286
def test_annotate_file_cherry_pick(self):
1287
k = self.make_test_knit(True)
1288
k.add_lines('text-1', [], ['a\n', 'b\n', 'c\n'])
1289
k.add_lines('text-2', ['text-1'], ['d\n', 'e\n', 'f\n'])
1290
k.add_lines('text-3', ['text-2', 'text-1'], ['a\n', 'b\n', 'c\n'])
1291
origins = k.annotate('text-3')
1292
self.assertEquals(origins[0], ('text-1', 'a\n'))
1293
self.assertEquals(origins[1], ('text-1', 'b\n'))
1294
self.assertEquals(origins[2], ('text-1', 'c\n'))
1296
def test_reannotate(self):
1297
k1 = make_file_knit('knit1', get_transport('.'),
1298
factory=KnitAnnotateFactory(), create=True)
1300
k1.add_lines('text-a', [], ['a\n', 'b\n'])
1302
k1.add_lines('text-b', ['text-a'], ['a\n', 'c\n'])
1304
k2 = make_file_knit('test2', get_transport('.'),
1305
factory=KnitAnnotateFactory(), create=True)
1306
k2.insert_record_stream(k1.get_record_stream(k1.versions(),
1307
'unordered', False))
1310
k1.add_lines('text-X', ['text-b'], ['a\n', 'b\n'])
1312
k2.add_lines('text-c', ['text-b'], ['z\n', 'c\n'])
1314
k2.add_lines('text-Y', ['text-b'], ['b\n', 'c\n'])
1316
# test-c will have index 3
1317
k1.insert_record_stream(k2.get_record_stream(['text-c'],
1318
'unordered', False))
1320
lines = k1.get_lines('text-c')
1321
self.assertEquals(lines, ['z\n', 'c\n'])
1323
origins = k1.annotate('text-c')
1324
self.assertEquals(origins[0], ('text-c', 'z\n'))
1325
self.assertEquals(origins[1], ('text-b', 'c\n'))
1327
def test_get_line_delta_texts(self):
1328
"""Make sure we can call get_texts on text with reused line deltas"""
1329
k1 = make_file_knit('test1', get_transport('.'),
1330
factory=KnitPlainFactory(), create=True)
1335
parents = ['%d' % (t-1)]
1336
k1.add_lines('%d' % t, parents, ['hello\n'] * t)
1337
k1.get_texts(('%d' % t) for t in range(3))
1339
def test_iter_lines_reads_in_order(self):
1340
instrumented_t = get_transport('trace+memory:///')
1341
k1 = make_file_knit('id', instrumented_t, create=True, delta=True)
1342
self.assertEqual([('get', 'id.kndx',)], instrumented_t._activity)
1343
# add texts with no required ordering
1344
k1.add_lines('base', [], ['text\n'])
1345
k1.add_lines('base2', [], ['text2\n'])
1346
# clear the logged activity, but preserve the list instance in case of
1347
# clones pointing at it.
1348
del instrumented_t._activity[:]
1349
# request a last-first iteration
1350
results = list(k1.iter_lines_added_or_present_in_versions(
1353
[('readv', 'id.knit', [(0, 87), (87, 89)], False, None)],
1354
instrumented_t._activity)
1355
self.assertEqual([('text\n', 'base'), ('text2\n', 'base2')], results)
1357
def test_knit_format(self):
1358
# this tests that a new knit index file has the expected content
1359
# and that is writes the data we expect as records are added.
1360
knit = self.make_test_knit(True)
1361
# Now knit files are not created until we first add data to them
1362
self.assertFileEqual("# bzr knit index 8\n", 'test.kndx')
1363
knit.add_lines_with_ghosts('revid', ['a_ghost'], ['a\n'])
1364
self.assertFileEqual(
1365
"# bzr knit index 8\n"
1367
"revid fulltext 0 84 .a_ghost :",
1369
knit.add_lines_with_ghosts('revid2', ['revid'], ['a\n'])
1370
self.assertFileEqual(
1371
"# bzr knit index 8\n"
1372
"\nrevid fulltext 0 84 .a_ghost :"
1373
"\nrevid2 line-delta 84 82 0 :",
1375
# we should be able to load this file again
1376
knit = make_file_knit('test', get_transport('.'), access_mode='r')
1377
self.assertEqual(['revid', 'revid2'], knit.versions())
1378
# write a short write to the file and ensure that its ignored
1379
indexfile = file('test.kndx', 'ab')
1380
indexfile.write('\nrevid3 line-delta 166 82 1 2 3 4 5 .phwoar:demo ')
1382
# we should be able to load this file again
1383
knit = make_file_knit('test', get_transport('.'), access_mode='w')
1384
self.assertEqual(['revid', 'revid2'], knit.versions())
1385
# and add a revision with the same id the failed write had
1386
knit.add_lines('revid3', ['revid2'], ['a\n'])
1387
# and when reading it revid3 should now appear.
1388
knit = make_file_knit('test', get_transport('.'), access_mode='r')
1389
self.assertEqual(['revid', 'revid2', 'revid3'], knit.versions())
1390
self.assertEqual({'revid3':('revid2',)}, knit.get_parent_map(['revid3']))
1392
def test_delay_create(self):
1393
"""Test that passing delay_create=True creates files late"""
1394
knit = self.make_test_knit(annotate=True, delay_create=True)
1395
self.failIfExists('test.knit')
1396
self.failIfExists('test.kndx')
1397
knit.add_lines_with_ghosts('revid', ['a_ghost'], ['a\n'])
1398
self.failUnlessExists('test.knit')
1399
self.assertFileEqual(
1400
"# bzr knit index 8\n"
1402
"revid fulltext 0 84 .a_ghost :",
1405
def test_create_parent_dir(self):
1406
"""create_parent_dir can create knits in nonexistant dirs"""
1407
# Has no effect if we don't set 'delay_create'
1408
trans = get_transport('.')
1409
self.assertRaises(NoSuchFile, make_file_knit, 'dir/test',
1410
trans, access_mode='w', factory=None,
1411
create=True, create_parent_dir=True)
1412
# Nothing should have changed yet
1413
knit = make_file_knit('dir/test', trans, access_mode='w',
1414
factory=None, create=True,
1415
create_parent_dir=True,
1417
self.failIfExists('dir/test.knit')
1418
self.failIfExists('dir/test.kndx')
1419
self.failIfExists('dir')
1420
knit.add_lines('revid', [], ['a\n'])
1421
self.failUnlessExists('dir')
1422
self.failUnlessExists('dir/test.knit')
1423
self.assertFileEqual(
1424
"# bzr knit index 8\n"
1426
"revid fulltext 0 84 :",
1429
def test_create_mode_700(self):
1430
trans = get_transport('.')
1431
if not trans._can_roundtrip_unix_modebits():
1432
# Can't roundtrip, so no need to run this test
1434
knit = make_file_knit('dir/test', trans, access_mode='w', factory=None,
1435
create=True, create_parent_dir=True, delay_create=True,
1436
file_mode=0600, dir_mode=0700)
1437
knit.add_lines('revid', [], ['a\n'])
1438
self.assertTransportMode(trans, 'dir', 0700)
1439
self.assertTransportMode(trans, 'dir/test.knit', 0600)
1440
self.assertTransportMode(trans, 'dir/test.kndx', 0600)
1442
def test_create_mode_770(self):
1443
trans = get_transport('.')
1444
if not trans._can_roundtrip_unix_modebits():
1445
# Can't roundtrip, so no need to run this test
1447
knit = make_file_knit('dir/test', trans, access_mode='w', factory=None,
1448
create=True, create_parent_dir=True, delay_create=True,
1449
file_mode=0660, dir_mode=0770)
1450
knit.add_lines('revid', [], ['a\n'])
1451
self.assertTransportMode(trans, 'dir', 0770)
1452
self.assertTransportMode(trans, 'dir/test.knit', 0660)
1453
self.assertTransportMode(trans, 'dir/test.kndx', 0660)
1455
def test_create_mode_777(self):
1456
trans = get_transport('.')
1457
if not trans._can_roundtrip_unix_modebits():
1458
# Can't roundtrip, so no need to run this test
1460
knit = make_file_knit('dir/test', trans, access_mode='w', factory=None,
1461
create=True, create_parent_dir=True, delay_create=True,
1462
file_mode=0666, dir_mode=0777)
1463
knit.add_lines('revid', [], ['a\n'])
1464
self.assertTransportMode(trans, 'dir', 0777)
1465
self.assertTransportMode(trans, 'dir/test.knit', 0666)
1466
self.assertTransportMode(trans, 'dir/test.kndx', 0666)
1468
def test_plan_merge(self):
1469
my_knit = self.make_test_knit(annotate=True)
1470
my_knit.add_lines('text1', [], split_lines(TEXT_1))
1471
my_knit.add_lines('text1a', ['text1'], split_lines(TEXT_1A))
1472
my_knit.add_lines('text1b', ['text1'], split_lines(TEXT_1B))
1473
plan = list(my_knit.plan_merge('text1a', 'text1b'))
1474
for plan_line, expected_line in zip(plan, AB_MERGE):
1475
self.assertEqual(plan_line, expected_line)
1478
class GetDataStreamTests(KnitTests):
1479
"""Tests for get_data_stream."""
1481
def test_get_stream_empty(self):
1482
"""Get a data stream for an empty knit file."""
1483
k1 = self.make_test_knit()
1484
format, data_list, reader_callable = k1.get_data_stream([])
1485
self.assertEqual('knit-plain', format)
1486
self.assertEqual([], data_list)
1487
content = reader_callable(None)
1488
self.assertEqual('', content)
1489
self.assertIsInstance(content, str)
1491
def test_get_stream_one_version(self):
1492
"""Get a data stream for a single record out of a knit containing just
1495
k1 = self.make_test_knit()
1497
('text-a', [], TEXT_1),
1499
expected_data_list = [
1500
# version, options, length, parents
1501
('text-a', ['fulltext'], 122, ()),
1503
for version_id, parents, lines in test_data:
1504
k1.add_lines(version_id, parents, split_lines(lines))
1506
format, data_list, reader_callable = k1.get_data_stream(['text-a'])
1507
self.assertEqual('knit-plain', format)
1508
self.assertEqual(expected_data_list, data_list)
1509
# There's only one record in the knit, so the content should be the
1510
# entire knit data file's contents.
1511
self.assertEqual(k1.transport.get_bytes(k1._data._access._filename),
1512
reader_callable(None))
1514
def test_get_stream_get_one_version_of_many(self):
1515
"""Get a data stream for just one version out of a knit containing many
1518
k1 = self.make_test_knit()
1519
# Insert the same data as test_knit_join, as they seem to cover a range
1520
# of cases (no parents, one parent, multiple parents).
1522
('text-a', [], TEXT_1),
1523
('text-b', ['text-a'], TEXT_1),
1524
('text-c', [], TEXT_1),
1525
('text-d', ['text-c'], TEXT_1),
1526
('text-m', ['text-b', 'text-d'], TEXT_1),
1528
expected_data_list = [
1529
# version, options, length, parents
1530
('text-m', ['line-delta'], 84, ('text-b', 'text-d')),
1532
for version_id, parents, lines in test_data:
1533
k1.add_lines(version_id, parents, split_lines(lines))
1535
format, data_list, reader_callable = k1.get_data_stream(['text-m'])
1536
self.assertEqual('knit-plain', format)
1537
self.assertEqual(expected_data_list, data_list)
1538
self.assertRecordContentEqual(k1, 'text-m', reader_callable(None))
1540
def test_get_data_stream_unordered_index(self):
1541
"""Get a data stream when the knit index reports versions out of order.
1543
https://bugs.launchpad.net/bzr/+bug/164637
1545
k1 = self.make_test_knit()
1547
('text-a', [], TEXT_1),
1548
('text-b', ['text-a'], TEXT_1),
1549
('text-c', [], TEXT_1),
1550
('text-d', ['text-c'], TEXT_1),
1551
('text-m', ['text-b', 'text-d'], TEXT_1),
1553
for version_id, parents, lines in test_data:
1554
k1.add_lines(version_id, parents, split_lines(lines))
1555
# monkey-patch versions method to return out of order, as if coming
1556
# from multiple independently indexed packs
1557
original_versions = k1.versions
1558
k1.versions = lambda: reversed(original_versions())
1559
expected_data_list = [
1560
('text-a', ['fulltext'], 122, ()),
1561
('text-b', ['line-delta'], 84, ('text-a',))]
1562
# now check the fulltext is first and the delta second
1563
format, data_list, _ = k1.get_data_stream(['text-a', 'text-b'])
1564
self.assertEqual('knit-plain', format)
1565
self.assertEqual(expected_data_list, data_list)
1566
# and that's true if we ask for them in the opposite order too
1567
format, data_list, _ = k1.get_data_stream(['text-b', 'text-a'])
1568
self.assertEqual(expected_data_list, data_list)
1569
# also try requesting more versions
1570
format, data_list, _ = k1.get_data_stream([
1571
'text-m', 'text-b', 'text-a'])
1573
('text-a', ['fulltext'], 122, ()),
1574
('text-b', ['line-delta'], 84, ('text-a',)),
1575
('text-m', ['line-delta'], 84, ('text-b', 'text-d')),
1578
def test_get_stream_ghost_parent(self):
1579
"""Get a data stream for a version with a ghost parent."""
1580
k1 = self.make_test_knit()
1582
k1.add_lines('text-a', [], split_lines(TEXT_1))
1583
k1.add_lines_with_ghosts('text-b', ['text-a', 'text-ghost'],
1584
split_lines(TEXT_1))
1586
expected_data_list = [
1587
# version, options, length, parents
1588
('text-b', ['line-delta'], 84, ('text-a', 'text-ghost')),
1591
format, data_list, reader_callable = k1.get_data_stream(['text-b'])
1592
self.assertEqual('knit-plain', format)
1593
self.assertEqual(expected_data_list, data_list)
1594
self.assertRecordContentEqual(k1, 'text-b', reader_callable(None))
1596
def test_get_stream_get_multiple_records(self):
1597
"""Get a stream for multiple records of a knit."""
1598
k1 = self.make_test_knit()
1599
# Insert the same data as test_knit_join, as they seem to cover a range
1600
# of cases (no parents, one parent, multiple parents).
1602
('text-a', [], TEXT_1),
1603
('text-b', ['text-a'], TEXT_1),
1604
('text-c', [], TEXT_1),
1605
('text-d', ['text-c'], TEXT_1),
1606
('text-m', ['text-b', 'text-d'], TEXT_1),
1608
for version_id, parents, lines in test_data:
1609
k1.add_lines(version_id, parents, split_lines(lines))
1611
# This test is actually a bit strict as the order in which they're
1612
# returned is not defined. This matches the current (deterministic)
1614
expected_data_list = [
1615
# version, options, length, parents
1616
('text-d', ['line-delta'], 84, ('text-c',)),
1617
('text-b', ['line-delta'], 84, ('text-a',)),
1619
# Note that even though we request the revision IDs in a particular
1620
# order, the data stream may return them in any order it likes. In this
1621
# case, they'll be in the order they were inserted into the knit.
1622
format, data_list, reader_callable = k1.get_data_stream(
1623
['text-d', 'text-b'])
1624
self.assertEqual('knit-plain', format)
1625
self.assertEqual(expected_data_list, data_list)
1626
# must match order they're returned
1627
self.assertRecordContentEqual(k1, 'text-d', reader_callable(84))
1628
self.assertRecordContentEqual(k1, 'text-b', reader_callable(84))
1629
self.assertEqual('', reader_callable(None),
1630
"There should be no more bytes left to read.")
1632
def test_get_stream_all(self):
1633
"""Get a data stream for all the records in a knit.
1635
This exercises fulltext records, line-delta records, records with
1636
various numbers of parents, and reading multiple records out of the
1637
callable. These cases ought to all be exercised individually by the
1638
other test_get_stream_* tests; this test is basically just paranoia.
1640
k1 = self.make_test_knit()
1641
# Insert the same data as test_knit_join, as they seem to cover a range
1642
# of cases (no parents, one parent, multiple parents).
1644
('text-a', [], TEXT_1),
1645
('text-b', ['text-a'], TEXT_1),
1646
('text-c', [], TEXT_1),
1647
('text-d', ['text-c'], TEXT_1),
1648
('text-m', ['text-b', 'text-d'], TEXT_1),
1650
for version_id, parents, lines in test_data:
1651
k1.add_lines(version_id, parents, split_lines(lines))
1653
# This test is actually a bit strict as the order in which they're
1654
# returned is not defined. This matches the current (deterministic)
1656
expected_data_list = [
1657
# version, options, length, parents
1658
('text-a', ['fulltext'], 122, ()),
1659
('text-b', ['line-delta'], 84, ('text-a',)),
1660
('text-m', ['line-delta'], 84, ('text-b', 'text-d')),
1661
('text-c', ['fulltext'], 121, ()),
1662
('text-d', ['line-delta'], 84, ('text-c',)),
1664
format, data_list, reader_callable = k1.get_data_stream(
1665
['text-a', 'text-b', 'text-c', 'text-d', 'text-m'])
1666
self.assertEqual('knit-plain', format)
1667
self.assertEqual(expected_data_list, data_list)
1668
for version_id, options, length, parents in expected_data_list:
1669
bytes = reader_callable(length)
1670
self.assertRecordContentEqual(k1, version_id, bytes)
1673
class InsertDataStreamTests(KnitTests):
1674
"""Tests for insert_data_stream."""
1676
def assertKnitFilesEqual(self, knit1, knit2):
1677
"""Assert that the contents of the index and data files of two knits are
1681
knit1.transport.get_bytes(knit1._data._access._filename),
1682
knit2.transport.get_bytes(knit2._data._access._filename))
1684
knit1.transport.get_bytes(knit1._index._filename),
1685
knit2.transport.get_bytes(knit2._index._filename))
1687
def assertKnitValuesEqual(self, left, right):
1688
"""Assert that the texts, annotations and graph of left and right are
1691
self.assertEqual(set(left.versions()), set(right.versions()))
1692
for version in left.versions():
1693
self.assertEqual(left.get_parents_with_ghosts(version),
1694
right.get_parents_with_ghosts(version))
1695
self.assertEqual(left.get_lines(version),
1696
right.get_lines(version))
1697
self.assertEqual(left.annotate(version),
1698
right.annotate(version))
1700
def test_empty_stream(self):
1701
"""Inserting a data stream with no records should not put any data into
1704
k1 = self.make_test_knit()
1705
k1.insert_data_stream(
1706
(k1.get_format_signature(), [], lambda ignored: ''))
1707
self.assertEqual('', k1.transport.get_bytes(k1._data._access._filename),
1708
"The .knit should be completely empty.")
1709
self.assertEqual(k1._index.HEADER,
1710
k1.transport.get_bytes(k1._index._filename),
1711
"The .kndx should have nothing apart from the header.")
1713
def test_one_record(self):
1714
"""Inserting a data stream with one record from a knit with one record
1715
results in byte-identical files.
1717
source = self.make_test_knit(name='source')
1718
source.add_lines('text-a', [], split_lines(TEXT_1))
1719
data_stream = source.get_data_stream(['text-a'])
1720
target = self.make_test_knit(name='target')
1721
target.insert_data_stream(data_stream)
1722
self.assertKnitFilesEqual(source, target)
1724
def test_annotated_stream_into_unannotated_knit(self):
1725
"""Inserting an annotated datastream to an unannotated knit works."""
1726
# case one - full texts.
1727
source = self.make_test_knit(name='source', annotate=True)
1728
target = self.make_test_knit(name='target', annotate=False)
1729
source.add_lines('text-a', [], split_lines(TEXT_1))
1730
target.insert_data_stream(source.get_data_stream(['text-a']))
1731
self.assertKnitValuesEqual(source, target)
1732
# case two - deltas.
1733
source.add_lines('text-b', ['text-a'], split_lines(TEXT_2))
1734
target.insert_data_stream(source.get_data_stream(['text-b']))
1735
self.assertKnitValuesEqual(source, target)
1737
def test_unannotated_stream_into_annotated_knit(self):
1738
"""Inserting an unannotated datastream to an annotated knit works."""
1739
# case one - full texts.
1740
source = self.make_test_knit(name='source', annotate=False)
1741
target = self.make_test_knit(name='target', annotate=True)
1742
source.add_lines('text-a', [], split_lines(TEXT_1))
1743
target.insert_data_stream(source.get_data_stream(['text-a']))
1744
self.assertKnitValuesEqual(source, target)
1745
# case two - deltas.
1746
source.add_lines('text-b', ['text-a'], split_lines(TEXT_2))
1747
target.insert_data_stream(source.get_data_stream(['text-b']))
1748
self.assertKnitValuesEqual(source, target)
1750
def test_records_already_present(self):
1751
"""Insert a data stream where some records are alreday present in the
1752
target, and some not. Only the new records are inserted.
1754
source = self.make_test_knit(name='source')
1755
target = self.make_test_knit(name='target')
1756
# Insert 'text-a' into both source and target
1757
source.add_lines('text-a', [], split_lines(TEXT_1))
1758
target.insert_data_stream(source.get_data_stream(['text-a']))
1759
# Insert 'text-b' into just the source.
1760
source.add_lines('text-b', ['text-a'], split_lines(TEXT_1))
1761
# Get a data stream of both text-a and text-b, and insert it.
1762
data_stream = source.get_data_stream(['text-a', 'text-b'])
1763
target.insert_data_stream(data_stream)
1764
# The source and target will now be identical. This means the text-a
1765
# record was not added a second time.
1766
self.assertKnitFilesEqual(source, target)
1768
def test_multiple_records(self):
1769
"""Inserting a data stream of all records from a knit with multiple
1770
records results in byte-identical files.
1772
source = self.make_test_knit(name='source')
1773
source.add_lines('text-a', [], split_lines(TEXT_1))
1774
source.add_lines('text-b', ['text-a'], split_lines(TEXT_1))
1775
source.add_lines('text-c', [], split_lines(TEXT_1))
1776
data_stream = source.get_data_stream(['text-a', 'text-b', 'text-c'])
1778
target = self.make_test_knit(name='target')
1779
target.insert_data_stream(data_stream)
1781
self.assertKnitFilesEqual(source, target)
1783
def test_ghost_parent(self):
1784
"""Insert a data stream with a record that has a ghost parent."""
1785
# Make a knit with a record, text-a, that has a ghost parent.
1786
source = self.make_test_knit(name='source')
1787
source.add_lines_with_ghosts('text-a', ['text-ghost'],
1788
split_lines(TEXT_1))
1789
data_stream = source.get_data_stream(['text-a'])
1791
target = self.make_test_knit(name='target')
1792
target.insert_data_stream(data_stream)
1794
self.assertKnitFilesEqual(source, target)
1796
# The target knit object is in a consistent state, i.e. the record we
1797
# just added is immediately visible.
1798
self.assertTrue(target.has_version('text-a'))
1799
self.assertFalse(target.has_version('text-ghost'))
1800
self.assertEqual({'text-a':('text-ghost',)},
1801
target.get_parent_map(['text-a', 'text-ghost']))
1802
self.assertEqual(split_lines(TEXT_1), target.get_lines('text-a'))
1804
def test_inconsistent_version_lines(self):
1805
"""Inserting a data stream which has different content for a version_id
1806
than already exists in the knit will raise KnitCorrupt.
1808
source = self.make_test_knit(name='source')
1809
target = self.make_test_knit(name='target')
1810
# Insert a different 'text-a' into both source and target
1811
source.add_lines('text-a', [], split_lines(TEXT_1))
1812
target.add_lines('text-a', [], split_lines(TEXT_2))
1813
# Insert a data stream with conflicting content into the target
1814
data_stream = source.get_data_stream(['text-a'])
1816
errors.KnitCorrupt, target.insert_data_stream, data_stream)
1818
def test_inconsistent_version_parents(self):
1819
"""Inserting a data stream which has different parents for a version_id
1820
than already exists in the knit will raise KnitCorrupt.
1822
source = self.make_test_knit(name='source')
1823
target = self.make_test_knit(name='target')
1824
# Insert a different 'text-a' into both source and target. They differ
1825
# only by the parents list, the content is the same.
1826
source.add_lines_with_ghosts('text-a', [], split_lines(TEXT_1))
1827
target.add_lines_with_ghosts('text-a', ['a-ghost'], split_lines(TEXT_1))
1828
# Insert a data stream with conflicting content into the target
1829
data_stream = source.get_data_stream(['text-a'])
1831
errors.KnitCorrupt, target.insert_data_stream, data_stream)
1833
def test_unknown_stream_format(self):
1834
"""A data stream in a different format to the target knit cannot be
1837
It will raise KnitDataStreamUnknown because the fallback code will fail
1838
to make a knit. In future we may need KnitDataStreamIncompatible again,
1839
for more exotic cases.
1841
data_stream = ('fake-format-signature', [], lambda _: '')
1842
target = self.make_test_knit(name='target')
1844
errors.KnitDataStreamUnknown,
1845
target.insert_data_stream, data_stream)
1847
def test_bug_208418(self):
1848
"""You can insert a stream with an incompatible format, even when:
1849
* the stream has a line-delta record,
1850
* whose parent is in the target, also stored as a line-delta
1852
See <https://launchpad.net/bugs/208418>.
1854
base_lines = split_lines(TEXT_1)
1856
target = self.make_test_knit(name='target', annotate=True)
1857
target.add_lines('version-1', [], base_lines)
1858
target.add_lines('version-2', ['version-1'], base_lines + ['a\n'])
1859
# The second record should be a delta.
1860
self.assertEqual('line-delta', target._index.get_method('version-2'))
1862
# Make a source, with a different format, but the same data
1863
source = self.make_test_knit(name='source', annotate=False)
1864
source.add_lines('version-1', [], base_lines)
1865
source.add_lines('version-2', ['version-1'], base_lines + ['a\n'])
1866
# Now add another record, which should be stored as a delta against
1868
source.add_lines('version-3', ['version-2'], base_lines + ['b\n'])
1869
self.assertEqual('line-delta', source._index.get_method('version-3'))
1871
# Make a stream of the new version
1872
data_stream = source.get_data_stream(['version-3'])
1873
# And insert into the target
1874
target.insert_data_stream(data_stream)
1875
# No errors should have been raised.
1877
def test_line_delta_record_into_non_delta_knit(self):
1878
# Make a data stream with a line-delta record
1879
source = self.make_test_knit(name='source', delta=True)
1880
base_lines = split_lines(TEXT_1)
1881
source.add_lines('version-1', [], base_lines)
1882
source.add_lines('version-2', ['version-1'], base_lines + ['a\n'])
1883
# The second record should be a delta.
1884
self.assertEqual('line-delta', source._index.get_method('version-2'))
1885
data_stream = source.get_data_stream(['version-1', 'version-2'])
1887
# Insert the stream into a non-delta knit.
1888
target = self.make_test_knit(name='target', delta=False)
1889
target.insert_data_stream(data_stream)
1891
# Both versions are fulltexts in the target
1892
self.assertEqual('fulltext', target._index.get_method('version-1'))
1893
self.assertEqual('fulltext', target._index.get_method('version-2'))
1896
class DataStreamTests(KnitTests):
1898
def assertMadeStreamKnit(self, source_knit, versions, target_knit):
1899
"""Assert that a knit made from a stream is as expected."""
1900
a_stream = source_knit.get_data_stream(versions)
1901
expected_data = a_stream[2](None)
1902
a_stream = source_knit.get_data_stream(versions)
1903
a_knit = target_knit._knit_from_datastream(a_stream)
1904
self.assertEqual(source_knit.factory.__class__,
1905
a_knit.factory.__class__)
1906
self.assertIsInstance(a_knit._data._access, _StreamAccess)
1907
self.assertIsInstance(a_knit._index, _StreamIndex)
1908
self.assertEqual(a_knit._index.data_list, a_stream[1])
1909
self.assertEqual(a_knit._data._access.data, expected_data)
1910
self.assertEqual(a_knit.filename, target_knit.filename)
1911
self.assertEqual(a_knit.transport, target_knit.transport)
1912
self.assertEqual(a_knit._index, a_knit._data._access.stream_index)
1913
self.assertEqual(target_knit, a_knit._data._access.backing_knit)
1914
self.assertIsInstance(a_knit._data._access.orig_factory,
1915
source_knit.factory.__class__)
1917
def test__knit_from_data_stream_empty(self):
1918
"""Create a knit object from a datastream."""
1919
annotated = self.make_test_knit(name='source', annotate=True)
1920
plain = self.make_test_knit(name='target', annotate=False)
1921
# case 1: annotated source
1922
self.assertMadeStreamKnit(annotated, [], annotated)
1923
self.assertMadeStreamKnit(annotated, [], plain)
1924
# case 2: plain source
1925
self.assertMadeStreamKnit(plain, [], annotated)
1926
self.assertMadeStreamKnit(plain, [], plain)
1928
def test__knit_from_data_stream_unknown_format(self):
1929
annotated = self.make_test_knit(name='source', annotate=True)
1930
self.assertRaises(errors.KnitDataStreamUnknown,
1931
annotated._knit_from_datastream, ("unknown", None, None))
1943
Banana cup cake recipe
1949
- self-raising flour
1953
Banana cup cake recipe
1955
- bananas (do not use plantains!!!)
1962
Banana cup cake recipe
1965
- self-raising flour
1978
AB_MERGE_TEXT="""unchanged|Banana cup cake recipe
1983
new-b|- bananas (do not use plantains!!!)
1984
unchanged|- broken tea cups
1985
new-a|- self-raising flour
1988
AB_MERGE=[tuple(l.split('|')) for l in AB_MERGE_TEXT.splitlines(True)]
1991
def line_delta(from_lines, to_lines):
1992
"""Generate line-based delta from one text to another"""
1993
s = difflib.SequenceMatcher(None, from_lines, to_lines)
1994
for op in s.get_opcodes():
1995
if op[0] == 'equal':
1997
yield '%d,%d,%d\n' % (op[1], op[2], op[4]-op[3])
1998
for i in range(op[3], op[4]):
2002
def apply_line_delta(basis_lines, delta_lines):
2003
"""Apply a line-based perfect diff
2005
basis_lines -- text to apply the patch to
2006
delta_lines -- diff instructions and content
2008
out = basis_lines[:]
2011
while i < len(delta_lines):
2013
a, b, c = map(long, l.split(','))
2015
out[offset+a:offset+b] = delta_lines[i:i+c]
2017
offset = offset + (b - a) + c
2021
class TestWeaveToKnit(KnitTests):
2023
def test_weave_to_knit_matches(self):
2024
# check that the WeaveToKnit is_compatible function
2025
# registers True for a Weave to a Knit.
2026
w = Weave(get_scope=lambda:None)
2027
k = self.make_test_knit()
2028
self.failUnless(WeaveToKnit.is_compatible(w, k))
2029
self.failIf(WeaveToKnit.is_compatible(k, w))
2030
self.failIf(WeaveToKnit.is_compatible(w, w))
2031
self.failIf(WeaveToKnit.is_compatible(k, k))
1505
2034
class TestKnitIndex(KnitTests):
1633
2153
add_callback = self.catch_add
1635
2155
add_callback = None
1636
return _KnitGraphIndex(combined_index, lambda:True, deltas=deltas,
2156
return KnitGraphIndex(combined_index, deltas=deltas,
1637
2157
add_callback=add_callback)
1639
def test_keys(self):
1640
index = self.two_graph_index()
1641
self.assertEqual(set([('tail',), ('tip',), ('parent',), ('separate',)]),
2159
def test_get_ancestry(self):
2160
# get_ancestry is defined as eliding ghosts, not erroring.
2161
index = self.two_graph_index()
2162
self.assertEqual([], index.get_ancestry([]))
2163
self.assertEqual(['separate'], index.get_ancestry(['separate']))
2164
self.assertEqual(['tail'], index.get_ancestry(['tail']))
2165
self.assertEqual(['tail', 'parent'], index.get_ancestry(['parent']))
2166
self.assertEqual(['tail', 'parent', 'tip'], index.get_ancestry(['tip']))
2167
self.assertTrue(index.get_ancestry(['tip', 'separate']) in
2168
(['tail', 'parent', 'tip', 'separate'],
2169
['separate', 'tail', 'parent', 'tip'],
2171
# and without topo_sort
2172
self.assertEqual(set(['separate']),
2173
set(index.get_ancestry(['separate'], topo_sorted=False)))
2174
self.assertEqual(set(['tail']),
2175
set(index.get_ancestry(['tail'], topo_sorted=False)))
2176
self.assertEqual(set(['tail', 'parent']),
2177
set(index.get_ancestry(['parent'], topo_sorted=False)))
2178
self.assertEqual(set(['tail', 'parent', 'tip']),
2179
set(index.get_ancestry(['tip'], topo_sorted=False)))
2180
self.assertEqual(set(['separate', 'tail', 'parent', 'tip']),
2181
set(index.get_ancestry(['tip', 'separate'])))
2182
# asking for a ghost makes it go boom.
2183
self.assertRaises(errors.RevisionNotPresent, index.get_ancestry, ['ghost'])
2185
def test_get_ancestry_with_ghosts(self):
2186
index = self.two_graph_index()
2187
self.assertEqual([], index.get_ancestry_with_ghosts([]))
2188
self.assertEqual(['separate'], index.get_ancestry_with_ghosts(['separate']))
2189
self.assertEqual(['tail'], index.get_ancestry_with_ghosts(['tail']))
2190
self.assertTrue(index.get_ancestry_with_ghosts(['parent']) in
2191
(['tail', 'ghost', 'parent'],
2192
['ghost', 'tail', 'parent'],
2194
self.assertTrue(index.get_ancestry_with_ghosts(['tip']) in
2195
(['tail', 'ghost', 'parent', 'tip'],
2196
['ghost', 'tail', 'parent', 'tip'],
2198
self.assertTrue(index.get_ancestry_with_ghosts(['tip', 'separate']) in
2199
(['tail', 'ghost', 'parent', 'tip', 'separate'],
2200
['ghost', 'tail', 'parent', 'tip', 'separate'],
2201
['separate', 'tail', 'ghost', 'parent', 'tip'],
2202
['separate', 'ghost', 'tail', 'parent', 'tip'],
2204
# asking for a ghost makes it go boom.
2205
self.assertRaises(errors.RevisionNotPresent, index.get_ancestry_with_ghosts, ['ghost'])
2207
def test_num_versions(self):
2208
index = self.two_graph_index()
2209
self.assertEqual(4, index.num_versions())
2211
def test_get_versions(self):
2212
index = self.two_graph_index()
2213
self.assertEqual(set(['tail', 'tip', 'parent', 'separate']),
2214
set(index.get_versions()))
2216
def test_has_version(self):
2217
index = self.two_graph_index()
2218
self.assertTrue(index.has_version('tail'))
2219
self.assertFalse(index.has_version('ghost'))
1644
2221
def test_get_position(self):
1645
2222
index = self.two_graph_index()
1646
self.assertEqual((index._graph_index._indices[0], 0, 100), index.get_position(('tip',)))
1647
self.assertEqual((index._graph_index._indices[1], 100, 78), index.get_position(('parent',)))
2223
self.assertEqual((index._graph_index._indices[0], 0, 100), index.get_position('tip'))
2224
self.assertEqual((index._graph_index._indices[1], 100, 78), index.get_position('parent'))
1649
2226
def test_get_method_deltas(self):
1650
2227
index = self.two_graph_index(deltas=True)
1651
self.assertEqual('fulltext', index.get_method(('tip',)))
1652
self.assertEqual('line-delta', index.get_method(('parent',)))
2228
self.assertEqual('fulltext', index.get_method('tip'))
2229
self.assertEqual('line-delta', index.get_method('parent'))
1654
2231
def test_get_method_no_deltas(self):
1655
2232
# check that the parent-history lookup is ignored with deltas=False.
1656
2233
index = self.two_graph_index(deltas=False)
1657
self.assertEqual('fulltext', index.get_method(('tip',)))
1658
self.assertEqual('fulltext', index.get_method(('parent',)))
2234
self.assertEqual('fulltext', index.get_method('tip'))
2235
self.assertEqual('fulltext', index.get_method('parent'))
1660
2237
def test_get_options_deltas(self):
1661
2238
index = self.two_graph_index(deltas=True)
1662
self.assertEqual(['fulltext', 'no-eol'], index.get_options(('tip',)))
1663
self.assertEqual(['line-delta'], index.get_options(('parent',)))
2239
self.assertEqual(['fulltext', 'no-eol'], index.get_options('tip'))
2240
self.assertEqual(['line-delta'], index.get_options('parent'))
1665
2242
def test_get_options_no_deltas(self):
1666
2243
# check that the parent-history lookup is ignored with deltas=False.
1667
2244
index = self.two_graph_index(deltas=False)
1668
self.assertEqual(['fulltext', 'no-eol'], index.get_options(('tip',)))
1669
self.assertEqual(['fulltext'], index.get_options(('parent',)))
1671
def test_get_parent_map(self):
1672
index = self.two_graph_index()
1673
self.assertEqual({('parent',):(('tail',), ('ghost',))},
1674
index.get_parent_map([('parent',), ('ghost',)]))
2245
self.assertEqual(['fulltext', 'no-eol'], index.get_options('tip'))
2246
self.assertEqual(['fulltext'], index.get_options('parent'))
2248
def test_get_parents_with_ghosts(self):
2249
index = self.two_graph_index()
2250
self.assertEqual(('tail', 'ghost'), index.get_parents_with_ghosts('parent'))
2251
# and errors on ghosts.
2252
self.assertRaises(errors.RevisionNotPresent,
2253
index.get_parents_with_ghosts, 'ghost')
2255
def test_check_versions_present(self):
2256
# ghosts should not be considered present
2257
index = self.two_graph_index()
2258
self.assertRaises(RevisionNotPresent, index.check_versions_present,
2260
self.assertRaises(RevisionNotPresent, index.check_versions_present,
2262
index.check_versions_present(['tail', 'separate'])
1676
2264
def catch_add(self, entries):
1677
2265
self.caught_entries.append(entries)
1679
2267
def test_add_no_callback_errors(self):
1680
2268
index = self.two_graph_index()
1681
self.assertRaises(errors.ReadOnlyError, index.add_records,
1682
[(('new',), 'fulltext,no-eol', (None, 50, 60), ['separate'])])
2269
self.assertRaises(errors.ReadOnlyError, index.add_version,
2270
'new', 'fulltext,no-eol', (None, 50, 60), ['separate'])
1684
2272
def test_add_version_smoke(self):
1685
2273
index = self.two_graph_index(catch_adds=True)
1686
index.add_records([(('new',), 'fulltext,no-eol', (None, 50, 60),
2274
index.add_version('new', 'fulltext,no-eol', (None, 50, 60), ['separate'])
1688
2275
self.assertEqual([[(('new', ), 'N50 60', ((('separate',),),))]],
1689
2276
self.caught_entries)
1691
2278
def test_add_version_delta_not_delta_index(self):
1692
2279
index = self.two_graph_index(catch_adds=True)
1693
self.assertRaises(errors.KnitCorrupt, index.add_records,
1694
[(('new',), 'no-eol,line-delta', (None, 0, 100), [('parent',)])])
2280
self.assertRaises(errors.KnitCorrupt, index.add_version,
2281
'new', 'no-eol,line-delta', (None, 0, 100), ['parent'])
1695
2282
self.assertEqual([], self.caught_entries)
1697
2284
def test_add_version_same_dup(self):
1698
2285
index = self.two_graph_index(catch_adds=True)
1699
2286
# options can be spelt two different ways
1700
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 100), [('parent',)])])
1701
index.add_records([(('tip',), 'no-eol,fulltext', (None, 0, 100), [('parent',)])])
1702
# position/length are ignored (because each pack could have fulltext or
1703
# delta, and be at a different position.
1704
index.add_records([(('tip',), 'fulltext,no-eol', (None, 50, 100),
1706
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 1000),
1708
# but neither should have added data:
1709
self.assertEqual([[], [], [], []], self.caught_entries)
2287
index.add_version('tip', 'fulltext,no-eol', (None, 0, 100), ['parent'])
2288
index.add_version('tip', 'no-eol,fulltext', (None, 0, 100), ['parent'])
2289
# but neither should have added data.
2290
self.assertEqual([[], []], self.caught_entries)
1711
2292
def test_add_version_different_dup(self):
1712
2293
index = self.two_graph_index(deltas=True, catch_adds=True)
1713
2294
# change options
1714
self.assertRaises(errors.KnitCorrupt, index.add_records,
1715
[(('tip',), 'line-delta', (None, 0, 100), [('parent',)])])
1716
self.assertRaises(errors.KnitCorrupt, index.add_records,
1717
[(('tip',), 'fulltext', (None, 0, 100), [('parent',)])])
2295
self.assertRaises(errors.KnitCorrupt, index.add_version,
2296
'tip', 'no-eol,line-delta', (None, 0, 100), ['parent'])
2297
self.assertRaises(errors.KnitCorrupt, index.add_version,
2298
'tip', 'line-delta,no-eol', (None, 0, 100), ['parent'])
2299
self.assertRaises(errors.KnitCorrupt, index.add_version,
2300
'tip', 'fulltext', (None, 0, 100), ['parent'])
2302
self.assertRaises(errors.KnitCorrupt, index.add_version,
2303
'tip', 'fulltext,no-eol', (None, 50, 100), ['parent'])
2304
self.assertRaises(errors.KnitCorrupt, index.add_version,
2305
'tip', 'fulltext,no-eol', (None, 0, 1000), ['parent'])
1719
self.assertRaises(errors.KnitCorrupt, index.add_records,
1720
[(('tip',), 'fulltext,no-eol', (None, 0, 100), [])])
2307
self.assertRaises(errors.KnitCorrupt, index.add_version,
2308
'tip', 'fulltext,no-eol', (None, 0, 100), [])
1721
2309
self.assertEqual([], self.caught_entries)
1723
2311
def test_add_versions_nodeltas(self):
1724
2312
index = self.two_graph_index(catch_adds=True)
1726
(('new',), 'fulltext,no-eol', (None, 50, 60), [('separate',)]),
1727
(('new2',), 'fulltext', (None, 0, 6), [('new',)]),
2313
index.add_versions([
2314
('new', 'fulltext,no-eol', (None, 50, 60), ['separate']),
2315
('new2', 'fulltext', (None, 0, 6), ['new']),
1729
2317
self.assertEqual([(('new', ), 'N50 60', ((('separate',),),)),
1730
2318
(('new2', ), ' 0 6', ((('new',),),))],
2024
2544
def test_add_versions_delta_not_delta_index(self):
2025
2545
index = self.two_graph_index(catch_adds=True)
2026
self.assertRaises(errors.KnitCorrupt, index.add_records,
2027
[(('new',), 'no-eol,line-delta', (None, 0, 100), [('parent',)])])
2546
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2547
[('new', 'no-eol,line-delta', (None, 0, 100), ['parent'])])
2028
2548
self.assertEqual([], self.caught_entries)
2030
2550
def test_add_versions_parents_not_parents_index(self):
2031
2551
index = self.two_graph_index(catch_adds=True)
2032
self.assertRaises(errors.KnitCorrupt, index.add_records,
2033
[(('new',), 'no-eol,fulltext', (None, 0, 100), [('parent',)])])
2552
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2553
[('new', 'no-eol,fulltext', (None, 0, 100), ['parent'])])
2034
2554
self.assertEqual([], self.caught_entries)
2036
2556
def test_add_versions_random_id_accepted(self):
2037
2557
index = self.two_graph_index(catch_adds=True)
2038
index.add_records([], random_id=True)
2558
index.add_versions([], random_id=True)
2040
2560
def test_add_versions_same_dup(self):
2041
2561
index = self.two_graph_index(catch_adds=True)
2042
2562
# options can be spelt two different ways
2043
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 100), [])])
2044
index.add_records([(('tip',), 'no-eol,fulltext', (None, 0, 100), [])])
2045
# position/length are ignored (because each pack could have fulltext or
2046
# delta, and be at a different position.
2047
index.add_records([(('tip',), 'fulltext,no-eol', (None, 50, 100), [])])
2048
index.add_records([(('tip',), 'fulltext,no-eol', (None, 0, 1000), [])])
2563
index.add_versions([('tip', 'fulltext,no-eol', (None, 0, 100), [])])
2564
index.add_versions([('tip', 'no-eol,fulltext', (None, 0, 100), [])])
2049
2565
# but neither should have added data.
2050
self.assertEqual([[], [], [], []], self.caught_entries)
2566
self.assertEqual([[], []], self.caught_entries)
2052
2568
def test_add_versions_different_dup(self):
2053
2569
index = self.two_graph_index(catch_adds=True)
2054
2570
# change options
2055
self.assertRaises(errors.KnitCorrupt, index.add_records,
2056
[(('tip',), 'no-eol,line-delta', (None, 0, 100), [])])
2057
self.assertRaises(errors.KnitCorrupt, index.add_records,
2058
[(('tip',), 'line-delta,no-eol', (None, 0, 100), [])])
2059
self.assertRaises(errors.KnitCorrupt, index.add_records,
2060
[(('tip',), 'fulltext', (None, 0, 100), [])])
2571
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2572
[('tip', 'no-eol,line-delta', (None, 0, 100), [])])
2573
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2574
[('tip', 'line-delta,no-eol', (None, 0, 100), [])])
2575
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2576
[('tip', 'fulltext', (None, 0, 100), [])])
2578
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2579
[('tip', 'fulltext,no-eol', (None, 50, 100), [])])
2580
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2581
[('tip', 'fulltext,no-eol', (None, 0, 1000), [])])
2062
self.assertRaises(errors.KnitCorrupt, index.add_records,
2063
[(('tip',), 'fulltext,no-eol', (None, 0, 100), [('parent',)])])
2583
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2584
[('tip', 'fulltext,no-eol', (None, 0, 100), ['parent'])])
2064
2585
# change options in the second record
2065
self.assertRaises(errors.KnitCorrupt, index.add_records,
2066
[(('tip',), 'fulltext,no-eol', (None, 0, 100), []),
2067
(('tip',), 'no-eol,line-delta', (None, 0, 100), [])])
2586
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2587
[('tip', 'fulltext,no-eol', (None, 0, 100), []),
2588
('tip', 'no-eol,line-delta', (None, 0, 100), [])])
2068
2589
self.assertEqual([], self.caught_entries)
2071
class TestKnitVersionedFiles(KnitTests):
2073
def assertGroupKeysForIo(self, exp_groups, keys, non_local_keys,
2074
positions, _min_buffer_size=None):
2075
kvf = self.make_test_knit()
2076
if _min_buffer_size is None:
2077
_min_buffer_size = knit._STREAM_MIN_BUFFER_SIZE
2078
self.assertEqual(exp_groups, kvf._group_keys_for_io(keys,
2079
non_local_keys, positions,
2080
_min_buffer_size=_min_buffer_size))
2082
def assertSplitByPrefix(self, expected_map, expected_prefix_order,
2084
split, prefix_order = KnitVersionedFiles._split_by_prefix(keys)
2085
self.assertEqual(expected_map, split)
2086
self.assertEqual(expected_prefix_order, prefix_order)
2088
def test__group_keys_for_io(self):
2089
ft_detail = ('fulltext', False)
2090
ld_detail = ('line-delta', False)
2098
f_a: (ft_detail, (f_a, 0, 100), None),
2099
f_b: (ld_detail, (f_b, 100, 21), f_a),
2100
f_c: (ld_detail, (f_c, 180, 15), f_b),
2101
g_a: (ft_detail, (g_a, 121, 35), None),
2102
g_b: (ld_detail, (g_b, 156, 12), g_a),
2103
g_c: (ld_detail, (g_c, 195, 13), g_a),
2105
self.assertGroupKeysForIo([([f_a], set())],
2106
[f_a], [], positions)
2107
self.assertGroupKeysForIo([([f_a], set([f_a]))],
2108
[f_a], [f_a], positions)
2109
self.assertGroupKeysForIo([([f_a, f_b], set([]))],
2110
[f_a, f_b], [], positions)
2111
self.assertGroupKeysForIo([([f_a, f_b], set([f_b]))],
2112
[f_a, f_b], [f_b], positions)
2113
self.assertGroupKeysForIo([([f_a, f_b, g_a, g_b], set())],
2114
[f_a, g_a, f_b, g_b], [], positions)
2115
self.assertGroupKeysForIo([([f_a, f_b, g_a, g_b], set())],
2116
[f_a, g_a, f_b, g_b], [], positions,
2117
_min_buffer_size=150)
2118
self.assertGroupKeysForIo([([f_a, f_b], set()), ([g_a, g_b], set())],
2119
[f_a, g_a, f_b, g_b], [], positions,
2120
_min_buffer_size=100)
2121
self.assertGroupKeysForIo([([f_c], set()), ([g_b], set())],
2122
[f_c, g_b], [], positions,
2123
_min_buffer_size=125)
2124
self.assertGroupKeysForIo([([g_b, f_c], set())],
2125
[g_b, f_c], [], positions,
2126
_min_buffer_size=125)
2128
def test__split_by_prefix(self):
2129
self.assertSplitByPrefix({'f': [('f', 'a'), ('f', 'b')],
2130
'g': [('g', 'b'), ('g', 'a')],
2132
[('f', 'a'), ('g', 'b'),
2133
('g', 'a'), ('f', 'b')])
2135
self.assertSplitByPrefix({'f': [('f', 'a'), ('f', 'b')],
2136
'g': [('g', 'b'), ('g', 'a')],
2138
[('f', 'a'), ('f', 'b'),
2139
('g', 'b'), ('g', 'a')])
2141
self.assertSplitByPrefix({'f': [('f', 'a'), ('f', 'b')],
2142
'g': [('g', 'b'), ('g', 'a')],
2144
[('f', 'a'), ('f', 'b'),
2145
('g', 'b'), ('g', 'a')])
2147
self.assertSplitByPrefix({'f': [('f', 'a'), ('f', 'b')],
2148
'g': [('g', 'b'), ('g', 'a')],
2149
'': [('a',), ('b',)]
2151
[('f', 'a'), ('g', 'b'),
2153
('g', 'a'), ('f', 'b')])
2156
class TestStacking(KnitTests):
2158
def get_basis_and_test_knit(self):
2159
basis = self.make_test_knit(name='basis')
2160
basis = RecordingVersionedFilesDecorator(basis)
2161
test = self.make_test_knit(name='test')
2162
test.add_fallback_versioned_files(basis)
2165
def test_add_fallback_versioned_files(self):
2166
basis = self.make_test_knit(name='basis')
2167
test = self.make_test_knit(name='test')
2168
# It must not error; other tests test that the fallback is referred to
2169
# when accessing data.
2170
test.add_fallback_versioned_files(basis)
2172
def test_add_lines(self):
2173
# lines added to the test are not added to the basis
2174
basis, test = self.get_basis_and_test_knit()
2176
key_basis = ('bar',)
2177
key_cross_border = ('quux',)
2178
key_delta = ('zaphod',)
2179
test.add_lines(key, (), ['foo\n'])
2180
self.assertEqual({}, basis.get_parent_map([key]))
2181
# lines added to the test that reference across the stack do a
2183
basis.add_lines(key_basis, (), ['foo\n'])
2185
test.add_lines(key_cross_border, (key_basis,), ['foo\n'])
2186
self.assertEqual('fulltext', test._index.get_method(key_cross_border))
2187
# we don't even need to look at the basis to see that this should be
2188
# stored as a fulltext
2189
self.assertEqual([], basis.calls)
2190
# Subsequent adds do delta.
2192
test.add_lines(key_delta, (key_cross_border,), ['foo\n'])
2193
self.assertEqual('line-delta', test._index.get_method(key_delta))
2194
self.assertEqual([], basis.calls)
2196
def test_annotate(self):
2197
# annotations from the test knit are answered without asking the basis
2198
basis, test = self.get_basis_and_test_knit()
2200
key_basis = ('bar',)
2201
key_missing = ('missing',)
2202
test.add_lines(key, (), ['foo\n'])
2203
details = test.annotate(key)
2204
self.assertEqual([(key, 'foo\n')], details)
2205
self.assertEqual([], basis.calls)
2206
# But texts that are not in the test knit are looked for in the basis
2208
basis.add_lines(key_basis, (), ['foo\n', 'bar\n'])
2210
details = test.annotate(key_basis)
2211
self.assertEqual([(key_basis, 'foo\n'), (key_basis, 'bar\n')], details)
2212
# Not optimised to date:
2213
# self.assertEqual([("annotate", key_basis)], basis.calls)
2214
self.assertEqual([('get_parent_map', set([key_basis])),
2215
('get_parent_map', set([key_basis])),
2216
('get_record_stream', [key_basis], 'topological', True)],
2219
def test_check(self):
2220
# At the moment checking a stacked knit does implicitly check the
2222
basis, test = self.get_basis_and_test_knit()
2225
def test_get_parent_map(self):
2226
# parents in the test knit are answered without asking the basis
2227
basis, test = self.get_basis_and_test_knit()
2229
key_basis = ('bar',)
2230
key_missing = ('missing',)
2231
test.add_lines(key, (), [])
2232
parent_map = test.get_parent_map([key])
2233
self.assertEqual({key: ()}, parent_map)
2234
self.assertEqual([], basis.calls)
2235
# But parents that are not in the test knit are looked for in the basis
2236
basis.add_lines(key_basis, (), [])
2238
parent_map = test.get_parent_map([key, key_basis, key_missing])
2239
self.assertEqual({key: (),
2240
key_basis: ()}, parent_map)
2241
self.assertEqual([("get_parent_map", set([key_basis, key_missing]))],
2244
def test_get_record_stream_unordered_fulltexts(self):
2245
# records from the test knit are answered without asking the basis:
2246
basis, test = self.get_basis_and_test_knit()
2248
key_basis = ('bar',)
2249
key_missing = ('missing',)
2250
test.add_lines(key, (), ['foo\n'])
2251
records = list(test.get_record_stream([key], 'unordered', True))
2252
self.assertEqual(1, len(records))
2253
self.assertEqual([], basis.calls)
2254
# Missing (from test knit) objects are retrieved from the basis:
2255
basis.add_lines(key_basis, (), ['foo\n', 'bar\n'])
2257
records = list(test.get_record_stream([key_basis, key_missing],
2259
self.assertEqual(2, len(records))
2260
calls = list(basis.calls)
2261
for record in records:
2262
self.assertSubset([record.key], (key_basis, key_missing))
2263
if record.key == key_missing:
2264
self.assertIsInstance(record, AbsentContentFactory)
2266
reference = list(basis.get_record_stream([key_basis],
2267
'unordered', True))[0]
2268
self.assertEqual(reference.key, record.key)
2269
self.assertEqual(reference.sha1, record.sha1)
2270
self.assertEqual(reference.storage_kind, record.storage_kind)
2271
self.assertEqual(reference.get_bytes_as(reference.storage_kind),
2272
record.get_bytes_as(record.storage_kind))
2273
self.assertEqual(reference.get_bytes_as('fulltext'),
2274
record.get_bytes_as('fulltext'))
2275
# It's not strictly minimal, but it seems reasonable for now for it to
2276
# ask which fallbacks have which parents.
2278
("get_parent_map", set([key_basis, key_missing])),
2279
("get_record_stream", [key_basis], 'unordered', True)],
2282
def test_get_record_stream_ordered_fulltexts(self):
2283
# ordering is preserved down into the fallback store.
2284
basis, test = self.get_basis_and_test_knit()
2286
key_basis = ('bar',)
2287
key_basis_2 = ('quux',)
2288
key_missing = ('missing',)
2289
test.add_lines(key, (key_basis,), ['foo\n'])
2290
# Missing (from test knit) objects are retrieved from the basis:
2291
basis.add_lines(key_basis, (key_basis_2,), ['foo\n', 'bar\n'])
2292
basis.add_lines(key_basis_2, (), ['quux\n'])
2294
# ask for in non-topological order
2295
records = list(test.get_record_stream(
2296
[key, key_basis, key_missing, key_basis_2], 'topological', True))
2297
self.assertEqual(4, len(records))
2299
for record in records:
2300
self.assertSubset([record.key],
2301
(key_basis, key_missing, key_basis_2, key))
2302
if record.key == key_missing:
2303
self.assertIsInstance(record, AbsentContentFactory)
2305
results.append((record.key, record.sha1, record.storage_kind,
2306
record.get_bytes_as('fulltext')))
2307
calls = list(basis.calls)
2308
order = [record[0] for record in results]
2309
self.assertEqual([key_basis_2, key_basis, key], order)
2310
for result in results:
2311
if result[0] == key:
2315
record = source.get_record_stream([result[0]], 'unordered',
2317
self.assertEqual(record.key, result[0])
2318
self.assertEqual(record.sha1, result[1])
2319
# We used to check that the storage kind matched, but actually it
2320
# depends on whether it was sourced from the basis, or in a single
2321
# group, because asking for full texts returns proxy objects to a
2322
# _ContentMapGenerator object; so checking the kind is unneeded.
2323
self.assertEqual(record.get_bytes_as('fulltext'), result[3])
2324
# It's not strictly minimal, but it seems reasonable for now for it to
2325
# ask which fallbacks have which parents.
2327
("get_parent_map", set([key_basis, key_basis_2, key_missing])),
2328
# topological is requested from the fallback, because that is what
2329
# was requested at the top level.
2330
("get_record_stream", [key_basis_2, key_basis], 'topological', True)],
2333
def test_get_record_stream_unordered_deltas(self):
2334
# records from the test knit are answered without asking the basis:
2335
basis, test = self.get_basis_and_test_knit()
2337
key_basis = ('bar',)
2338
key_missing = ('missing',)
2339
test.add_lines(key, (), ['foo\n'])
2340
records = list(test.get_record_stream([key], 'unordered', False))
2341
self.assertEqual(1, len(records))
2342
self.assertEqual([], basis.calls)
2343
# Missing (from test knit) objects are retrieved from the basis:
2344
basis.add_lines(key_basis, (), ['foo\n', 'bar\n'])
2346
records = list(test.get_record_stream([key_basis, key_missing],
2591
class TestPackKnits(KnitTests):
2592
"""Tests that use a _PackAccess and KnitGraphIndex."""
2594
def test_get_data_stream_packs_ignores_pack_overhead(self):
2595
# Packs have an encoding overhead that should not be included in the
2596
# 'size' field of a data stream, because it is not returned by the
2597
# raw_reading functions - it is why index_memo's are opaque, and
2598
# get_data_stream was abusing this.
2599
packname = 'test.pack'
2600
transport = self.get_transport()
2601
def write_data(bytes):
2602
transport.append_bytes(packname, bytes)
2603
writer = pack.ContainerWriter(write_data)
2605
index = InMemoryGraphIndex(2)
2606
knit_index = KnitGraphIndex(index, add_callback=index.add_nodes,
2608
indices = {index:(transport, packname)}
2609
access = _PackAccess(indices, writer=(writer, index))
2610
k = KnitVersionedFile('test', get_transport('.'),
2611
delta=True, create=True, index=knit_index, access_method=access)
2612
# insert something into the knit
2613
k.add_lines('text-1', [], ["foo\n"])
2614
# get a data stream for it
2615
stream = k.get_data_stream(['text-1'])
2616
# if the stream has been incorrectly assembled, we will get a short read
2617
# reading from the stream (as streams have no trailer)
2618
expected_length = stream[1][0][2]
2619
# we use -1 to do the read, so that if a trailer is added this test
2620
# will fail and we'll adjust it to handle that case correctly, rather
2621
# than allowing an over-read that is bogus.
2622
self.assertEqual(expected_length, len(stream[2](-1)))
2625
class Test_StreamIndex(KnitTests):
2627
def get_index(self, knit, stream):
2628
"""Get a _StreamIndex from knit and stream."""
2629
return knit._knit_from_datastream(stream)._index
2631
def assertIndexVersions(self, knit, versions):
2632
"""Check that the _StreamIndex versions are those of the stream."""
2633
index = self.get_index(knit, knit.get_data_stream(versions))
2634
self.assertEqual(set(index.get_versions()), set(versions))
2635
# check we didn't get duplicates
2636
self.assertEqual(len(index.get_versions()), len(versions))
2638
def assertIndexAncestry(self, knit, ancestry_versions, versions, result):
2639
"""Check the result of a get_ancestry call on knit."""
2640
index = self.get_index(knit, knit.get_data_stream(versions))
2643
set(index.get_ancestry(ancestry_versions, False)))
2645
def assertGetMethod(self, knit, versions, version, result):
2646
index = self.get_index(knit, knit.get_data_stream(versions))
2647
self.assertEqual(result, index.get_method(version))
2649
def assertGetOptions(self, knit, version, options):
2650
index = self.get_index(knit, knit.get_data_stream(version))
2651
self.assertEqual(options, index.get_options(version))
2653
def assertGetPosition(self, knit, versions, version, result):
2654
index = self.get_index(knit, knit.get_data_stream(versions))
2655
if result[1] is None:
2656
result = (result[0], index, result[2], result[3])
2657
self.assertEqual(result, index.get_position(version))
2659
def assertGetParentsWithGhosts(self, knit, versions, version, parents):
2660
index = self.get_index(knit, knit.get_data_stream(versions))
2661
self.assertEqual(parents, index.get_parents_with_ghosts(version))
2663
def make_knit_with_4_versions_2_dags(self):
2664
knit = self.make_test_knit()
2665
knit.add_lines('a', [], ["foo"])
2666
knit.add_lines('b', [], [])
2667
knit.add_lines('c', ['b', 'a'], [])
2668
knit.add_lines_with_ghosts('d', ['e', 'f'], [])
2671
def test_versions(self):
2672
"""The versions of a StreamIndex are those of the datastream."""
2673
knit = self.make_knit_with_4_versions_2_dags()
2674
# ask for most permutations, which catches bugs like falling back to the
2675
# target knit, or showing ghosts, etc.
2676
self.assertIndexVersions(knit, [])
2677
self.assertIndexVersions(knit, ['a'])
2678
self.assertIndexVersions(knit, ['b'])
2679
self.assertIndexVersions(knit, ['c'])
2680
self.assertIndexVersions(knit, ['d'])
2681
self.assertIndexVersions(knit, ['a', 'b'])
2682
self.assertIndexVersions(knit, ['b', 'c'])
2683
self.assertIndexVersions(knit, ['a', 'c'])
2684
self.assertIndexVersions(knit, ['a', 'b', 'c'])
2685
self.assertIndexVersions(knit, ['a', 'b', 'c', 'd'])
2687
def test_construct(self):
2688
"""Constructing a StreamIndex generates index data."""
2689
data_list = [('text-a', ['fulltext'], 127, []),
2690
('text-b', ['option'], 128, ['text-c'])]
2691
index = _StreamIndex(data_list, None)
2692
self.assertEqual({'text-a':(['fulltext'], (0, 127), []),
2693
'text-b':(['option'], (127, 127 + 128), ['text-c'])},
2696
def test_get_ancestry(self):
2697
knit = self.make_knit_with_4_versions_2_dags()
2698
self.assertIndexAncestry(knit, ['a'], ['a'], ['a'])
2699
self.assertIndexAncestry(knit, ['b'], ['b'], ['b'])
2700
self.assertIndexAncestry(knit, ['c'], ['c'], ['c'])
2701
self.assertIndexAncestry(knit, ['c'], ['a', 'b', 'c'],
2702
set(['a', 'b', 'c']))
2703
self.assertIndexAncestry(knit, ['c', 'd'], ['a', 'b', 'c', 'd'],
2704
set(['a', 'b', 'c', 'd']))
2706
def test_get_method(self):
2707
knit = self.make_knit_with_4_versions_2_dags()
2708
self.assertGetMethod(knit, ['a'], 'a', 'fulltext')
2709
self.assertGetMethod(knit, ['c'], 'c', 'line-delta')
2710
# get_method on a basis that is not in the datastream (but in the
2711
# backing knit) returns 'fulltext', because thats what we'll create as
2713
self.assertGetMethod(knit, ['c'], 'b', 'fulltext')
2715
def test_get_options(self):
2716
knit = self.make_knit_with_4_versions_2_dags()
2717
self.assertGetOptions(knit, 'a', ['no-eol', 'fulltext'])
2718
self.assertGetOptions(knit, 'c', ['line-delta'])
2720
def test_get_parents_with_ghosts(self):
2721
knit = self.make_knit_with_4_versions_2_dags()
2722
self.assertGetParentsWithGhosts(knit, ['a'], 'a', ())
2723
self.assertGetParentsWithGhosts(knit, ['c'], 'c', ('b', 'a'))
2724
self.assertGetParentsWithGhosts(knit, ['d'], 'd', ('e', 'f'))
2726
def test_get_position(self):
2727
knit = self.make_knit_with_4_versions_2_dags()
2728
# get_position returns (thunk_flag, index(can be None), start, end) for
2729
# _StreamAccess to use.
2730
self.assertGetPosition(knit, ['a'], 'a', (False, None, 0, 78))
2731
self.assertGetPosition(knit, ['a', 'c'], 'c', (False, None, 78, 156))
2732
# get_position on a text that is not in the datastream (but in the
2733
# backing knit) returns (True, 'versionid', None, None) - and then the
2734
# access object can construct the relevant data as needed.
2735
self.assertGetPosition(knit, ['a', 'c'], 'b', (True, 'b', None, None))
2738
class Test_StreamAccess(KnitTests):
2740
def get_index_access(self, knit, stream):
2741
"""Get a _StreamAccess from knit and stream."""
2742
knit = knit._knit_from_datastream(stream)
2743
return knit._index, knit._data._access
2745
def assertGetRawRecords(self, knit, versions):
2746
index, access = self.get_index_access(knit,
2747
knit.get_data_stream(versions))
2748
# check that every version asked for can be obtained from the resulting
2752
for version in versions:
2753
memos.append(knit._index.get_position(version))
2755
for version, data in zip(
2756
versions, knit._data._access.get_raw_records(memos)):
2757
original[version] = data
2759
for version in versions:
2760
memos.append(index.get_position(version))
2762
for version, data in zip(versions, access.get_raw_records(memos)):
2763
streamed[version] = data
2764
self.assertEqual(original, streamed)
2766
for version in versions:
2767
data = list(access.get_raw_records(
2768
[index.get_position(version)]))[0]
2769
self.assertEqual(original[version], data)
2771
def make_knit_with_two_versions(self):
2772
knit = self.make_test_knit()
2773
knit.add_lines('a', [], ["foo"])
2774
knit.add_lines('b', [], ["bar"])
2777
def test_get_raw_records(self):
2778
knit = self.make_knit_with_two_versions()
2779
self.assertGetRawRecords(knit, ['a', 'b'])
2780
self.assertGetRawRecords(knit, ['a'])
2781
self.assertGetRawRecords(knit, ['b'])
2783
def test_get_raw_record_from_backing_knit(self):
2784
# the thunk layer should create an artificial A on-demand when needed.
2785
source_knit = self.make_test_knit(name='plain', annotate=False)
2786
target_knit = self.make_test_knit(name='annotated', annotate=True)
2787
source_knit.add_lines("A", [], ["Foo\n"])
2788
# Give the target A, so we can try to thunk across to it.
2789
target_knit.insert_record_stream(source_knit.get_record_stream(['A'],
2347
2790
'unordered', False))
2348
self.assertEqual(2, len(records))
2349
calls = list(basis.calls)
2350
for record in records:
2351
self.assertSubset([record.key], (key_basis, key_missing))
2352
if record.key == key_missing:
2353
self.assertIsInstance(record, AbsentContentFactory)
2355
reference = list(basis.get_record_stream([key_basis],
2356
'unordered', False))[0]
2357
self.assertEqual(reference.key, record.key)
2358
self.assertEqual(reference.sha1, record.sha1)
2359
self.assertEqual(reference.storage_kind, record.storage_kind)
2360
self.assertEqual(reference.get_bytes_as(reference.storage_kind),
2361
record.get_bytes_as(record.storage_kind))
2362
# It's not strictly minimal, but it seems reasonable for now for it to
2363
# ask which fallbacks have which parents.
2365
("get_parent_map", set([key_basis, key_missing])),
2366
("get_record_stream", [key_basis], 'unordered', False)],
2369
def test_get_record_stream_ordered_deltas(self):
2370
# ordering is preserved down into the fallback store.
2371
basis, test = self.get_basis_and_test_knit()
2373
key_basis = ('bar',)
2374
key_basis_2 = ('quux',)
2375
key_missing = ('missing',)
2376
test.add_lines(key, (key_basis,), ['foo\n'])
2377
# Missing (from test knit) objects are retrieved from the basis:
2378
basis.add_lines(key_basis, (key_basis_2,), ['foo\n', 'bar\n'])
2379
basis.add_lines(key_basis_2, (), ['quux\n'])
2381
# ask for in non-topological order
2382
records = list(test.get_record_stream(
2383
[key, key_basis, key_missing, key_basis_2], 'topological', False))
2384
self.assertEqual(4, len(records))
2386
for record in records:
2387
self.assertSubset([record.key],
2388
(key_basis, key_missing, key_basis_2, key))
2389
if record.key == key_missing:
2390
self.assertIsInstance(record, AbsentContentFactory)
2392
results.append((record.key, record.sha1, record.storage_kind,
2393
record.get_bytes_as(record.storage_kind)))
2394
calls = list(basis.calls)
2395
order = [record[0] for record in results]
2396
self.assertEqual([key_basis_2, key_basis, key], order)
2397
for result in results:
2398
if result[0] == key:
2402
record = source.get_record_stream([result[0]], 'unordered',
2404
self.assertEqual(record.key, result[0])
2405
self.assertEqual(record.sha1, result[1])
2406
self.assertEqual(record.storage_kind, result[2])
2407
self.assertEqual(record.get_bytes_as(record.storage_kind), result[3])
2408
# It's not strictly minimal, but it seems reasonable for now for it to
2409
# ask which fallbacks have which parents.
2411
("get_parent_map", set([key_basis, key_basis_2, key_missing])),
2412
("get_record_stream", [key_basis_2, key_basis], 'topological', False)],
2415
def test_get_sha1s(self):
2416
# sha1's in the test knit are answered without asking the basis
2417
basis, test = self.get_basis_and_test_knit()
2419
key_basis = ('bar',)
2420
key_missing = ('missing',)
2421
test.add_lines(key, (), ['foo\n'])
2422
key_sha1sum = osutils.sha('foo\n').hexdigest()
2423
sha1s = test.get_sha1s([key])
2424
self.assertEqual({key: key_sha1sum}, sha1s)
2425
self.assertEqual([], basis.calls)
2426
# But texts that are not in the test knit are looked for in the basis
2427
# directly (rather than via text reconstruction) so that remote servers
2428
# etc don't have to answer with full content.
2429
basis.add_lines(key_basis, (), ['foo\n', 'bar\n'])
2430
basis_sha1sum = osutils.sha('foo\nbar\n').hexdigest()
2432
sha1s = test.get_sha1s([key, key_missing, key_basis])
2433
self.assertEqual({key: key_sha1sum,
2434
key_basis: basis_sha1sum}, sha1s)
2435
self.assertEqual([("get_sha1s", set([key_basis, key_missing]))],
2438
def test_insert_record_stream(self):
2439
# records are inserted as normal; insert_record_stream builds on
2440
# add_lines, so a smoke test should be all that's needed:
2442
key_basis = ('bar',)
2443
key_delta = ('zaphod',)
2444
basis, test = self.get_basis_and_test_knit()
2445
source = self.make_test_knit(name='source')
2446
basis.add_lines(key_basis, (), ['foo\n'])
2448
source.add_lines(key_basis, (), ['foo\n'])
2449
source.add_lines(key_delta, (key_basis,), ['bar\n'])
2450
stream = source.get_record_stream([key_delta], 'unordered', False)
2451
test.insert_record_stream(stream)
2452
# XXX: this does somewhat too many calls in making sure of whether it
2453
# has to recreate the full text.
2454
self.assertEqual([("get_parent_map", set([key_basis])),
2455
('get_parent_map', set([key_basis])),
2456
('get_record_stream', [key_basis], 'unordered', True)],
2458
self.assertEqual({key_delta:(key_basis,)},
2459
test.get_parent_map([key_delta]))
2460
self.assertEqual('bar\n', test.get_record_stream([key_delta],
2461
'unordered', True).next().get_bytes_as('fulltext'))
2463
def test_iter_lines_added_or_present_in_keys(self):
2464
# Lines from the basis are returned, and lines for a given key are only
2468
# all sources are asked for keys:
2469
basis, test = self.get_basis_and_test_knit()
2470
basis.add_lines(key1, (), ["foo"])
2472
lines = list(test.iter_lines_added_or_present_in_keys([key1]))
2473
self.assertEqual([("foo\n", key1)], lines)
2474
self.assertEqual([("iter_lines_added_or_present_in_keys", set([key1]))],
2476
# keys in both are not duplicated:
2477
test.add_lines(key2, (), ["bar\n"])
2478
basis.add_lines(key2, (), ["bar\n"])
2480
lines = list(test.iter_lines_added_or_present_in_keys([key2]))
2481
self.assertEqual([("bar\n", key2)], lines)
2482
self.assertEqual([], basis.calls)
2484
def test_keys(self):
2487
# all sources are asked for keys:
2488
basis, test = self.get_basis_and_test_knit()
2490
self.assertEqual(set(), set(keys))
2491
self.assertEqual([("keys",)], basis.calls)
2492
# keys from a basis are returned:
2493
basis.add_lines(key1, (), [])
2496
self.assertEqual(set([key1]), set(keys))
2497
self.assertEqual([("keys",)], basis.calls)
2498
# keys in both are not duplicated:
2499
test.add_lines(key2, (), [])
2500
basis.add_lines(key2, (), [])
2503
self.assertEqual(2, len(keys))
2504
self.assertEqual(set([key1, key2]), set(keys))
2505
self.assertEqual([("keys",)], basis.calls)
2507
def test_add_mpdiffs(self):
2508
# records are inserted as normal; add_mpdiff builds on
2509
# add_lines, so a smoke test should be all that's needed:
2511
key_basis = ('bar',)
2512
key_delta = ('zaphod',)
2513
basis, test = self.get_basis_and_test_knit()
2514
source = self.make_test_knit(name='source')
2515
basis.add_lines(key_basis, (), ['foo\n'])
2517
source.add_lines(key_basis, (), ['foo\n'])
2518
source.add_lines(key_delta, (key_basis,), ['bar\n'])
2519
diffs = source.make_mpdiffs([key_delta])
2520
test.add_mpdiffs([(key_delta, (key_basis,),
2521
source.get_sha1s([key_delta])[key_delta], diffs[0])])
2522
self.assertEqual([("get_parent_map", set([key_basis])),
2523
('get_record_stream', [key_basis], 'unordered', True),],
2525
self.assertEqual({key_delta:(key_basis,)},
2526
test.get_parent_map([key_delta]))
2527
self.assertEqual('bar\n', test.get_record_stream([key_delta],
2528
'unordered', True).next().get_bytes_as('fulltext'))
2530
def test_make_mpdiffs(self):
2531
# Generating an mpdiff across a stacking boundary should detect parent
2535
key_right = ('zaphod',)
2536
basis, test = self.get_basis_and_test_knit()
2537
basis.add_lines(key_left, (), ['bar\n'])
2538
basis.add_lines(key_right, (), ['zaphod\n'])
2540
test.add_lines(key, (key_left, key_right),
2541
['bar\n', 'foo\n', 'zaphod\n'])
2542
diffs = test.make_mpdiffs([key])
2544
multiparent.MultiParent([multiparent.ParentText(0, 0, 0, 1),
2545
multiparent.NewText(['foo\n']),
2546
multiparent.ParentText(1, 0, 2, 1)])],
2548
self.assertEqual(3, len(basis.calls))
2550
("get_parent_map", set([key_left, key_right])),
2551
("get_parent_map", set([key_left, key_right])),
2554
last_call = basis.calls[-1]
2555
self.assertEqual('get_record_stream', last_call[0])
2556
self.assertEqual(set([key_left, key_right]), set(last_call[1]))
2557
self.assertEqual('topological', last_call[2])
2558
self.assertEqual(True, last_call[3])
2561
class TestNetworkBehaviour(KnitTests):
2562
"""Tests for getting data out of/into knits over the network."""
2564
def test_include_delta_closure_generates_a_knit_delta_closure(self):
2565
vf = self.make_test_knit(name='test')
2566
# put in three texts, giving ft, delta, delta
2567
vf.add_lines(('base',), (), ['base\n', 'content\n'])
2568
vf.add_lines(('d1',), (('base',),), ['d1\n'])
2569
vf.add_lines(('d2',), (('d1',),), ['d2\n'])
2570
# But heuristics could interfere, so check what happened:
2571
self.assertEqual(['knit-ft-gz', 'knit-delta-gz', 'knit-delta-gz'],
2572
[record.storage_kind for record in
2573
vf.get_record_stream([('base',), ('d1',), ('d2',)],
2574
'topological', False)])
2575
# generate a stream of just the deltas include_delta_closure=True,
2576
# serialise to the network, and check that we get a delta closure on the wire.
2577
stream = vf.get_record_stream([('d1',), ('d2',)], 'topological', True)
2578
netb = [record.get_bytes_as(record.storage_kind) for record in stream]
2579
# The first bytes should be a memo from _ContentMapGenerator, and the
2580
# second bytes should be empty (because its a API proxy not something
2581
# for wire serialisation.
2582
self.assertEqual('', netb[1])
2584
kind, line_end = network_bytes_to_kind_and_offset(bytes)
2585
self.assertEqual('knit-delta-closure', kind)
2588
class TestContentMapGenerator(KnitTests):
2589
"""Tests for ContentMapGenerator"""
2591
def test_get_record_stream_gives_records(self):
2592
vf = self.make_test_knit(name='test')
2593
# put in three texts, giving ft, delta, delta
2594
vf.add_lines(('base',), (), ['base\n', 'content\n'])
2595
vf.add_lines(('d1',), (('base',),), ['d1\n'])
2596
vf.add_lines(('d2',), (('d1',),), ['d2\n'])
2597
keys = [('d1',), ('d2',)]
2598
generator = _VFContentMapGenerator(vf, keys,
2599
global_map=vf.get_parent_map(keys))
2600
for record in generator.get_record_stream():
2601
if record.key == ('d1',):
2602
self.assertEqual('d1\n', record.get_bytes_as('fulltext'))
2604
self.assertEqual('d2\n', record.get_bytes_as('fulltext'))
2606
def test_get_record_stream_kinds_are_raw(self):
2607
vf = self.make_test_knit(name='test')
2608
# put in three texts, giving ft, delta, delta
2609
vf.add_lines(('base',), (), ['base\n', 'content\n'])
2610
vf.add_lines(('d1',), (('base',),), ['d1\n'])
2611
vf.add_lines(('d2',), (('d1',),), ['d2\n'])
2612
keys = [('base',), ('d1',), ('d2',)]
2613
generator = _VFContentMapGenerator(vf, keys,
2614
global_map=vf.get_parent_map(keys))
2615
kinds = {('base',): 'knit-delta-closure',
2616
('d1',): 'knit-delta-closure-ref',
2617
('d2',): 'knit-delta-closure-ref',
2619
for record in generator.get_record_stream():
2620
self.assertEqual(kinds[record.key], record.storage_kind)
2791
index, access = self.get_index_access(target_knit,
2792
source_knit.get_data_stream([]))
2793
raw_data = list(access.get_raw_records([(True, "A", None, None)]))[0]
2794
df = GzipFile(mode='rb', fileobj=StringIO(raw_data))
2796
'version A 1 5d36b88bb697a2d778f024048bafabd443d74503\n'
2800
def test_asking_for_thunk_stream_is_not_plain_errors(self):
2801
knit = self.make_test_knit(name='annotated', annotate=True)
2802
knit.add_lines("A", [], ["Foo\n"])
2803
index, access = self.get_index_access(knit,
2804
knit.get_data_stream([]))
2805
self.assertRaises(errors.KnitCorrupt,
2806
list, access.get_raw_records([(True, "A", None, None)]))
2809
class TestFormatSignatures(KnitTests):
2811
def test_knit_format_signatures(self):
2812
"""Different formats of knit have different signature strings."""
2813
knit = self.make_test_knit(name='a', annotate=True)
2814
self.assertEqual('knit-annotated', knit.get_format_signature())
2815
knit = self.make_test_knit(name='p', annotate=False)
2816
self.assertEqual('knit-plain', knit.get_format_signature())
added
removed
bzrlib/tests/test_knit.py
