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Viewing changes to bzrlib/tests/per_versionedfile.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-09-01 08:02:42 UTC
  • mfrom: (5390.3.3 faster-revert-593560)
  • Revision ID: pqm@pqm.ubuntu.com-20100901080242-esg62ody4frwmy66
(spiv) Avoid repeatedly calling self.target.all_file_ids() in
 InterTree.iter_changes. (Andrew Bennetts)

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bzrlib/tests/per_versionedfile.py
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# Copyright (C) 2005, 2009 Canonical Ltd
 
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# Copyright (C) 2006-2010 Canonical Ltd
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#
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3
# Authors:
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#   Johan Rydberg <jrydberg@gnu.org>
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from bzrlib import (
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    errors,
 
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    graph as _mod_graph,
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    groupcompress,
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    knit as _mod_knit,
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    osutils,
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    progress,
 
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    transport,
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    ui,
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    )
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from bzrlib.errors import (
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    )
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from bzrlib.tests.http_utils import TestCaseWithWebserver
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from bzrlib.trace import mutter
58
 
from bzrlib.transport import get_transport
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from bzrlib.transport.memory import MemoryTransport
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from bzrlib.tsort import topo_sort
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from bzrlib.tuned_gzip import GzipFile
733
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        # the ordering here is to make a tree so that dumb searches have
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735
        # more changes to muck up.
735
736
 
736
 
        class InstrumentedProgress(progress.DummyProgress):
 
737
        class InstrumentedProgress(progress.ProgressTask):
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738
 
738
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            def __init__(self):
739
 
 
740
 
                progress.DummyProgress.__init__(self)
 
740
                progress.ProgressTask.__init__(self)
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741
                self.updates = []
742
742
 
743
743
            def update(self, msg=None, current=None, total=None):
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849
        self.assertEquals(('references_ghost', 'line_c\n'), origins[2])
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851
851
    def test_readonly_mode(self):
852
 
        transport = get_transport(self.get_url('.'))
 
852
        t = transport.get_transport(self.get_url('.'))
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        factory = self.get_factory()
854
 
        vf = factory('id', transport, 0777, create=True, access_mode='w')
855
 
        vf = factory('id', transport, access_mode='r')
 
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        vf = factory('id', t, 0777, create=True, access_mode='w')
 
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        vf = factory('id', t, access_mode='r')
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        self.assertRaises(errors.ReadOnlyError, vf.add_lines, 'base', [], [])
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        self.assertRaises(errors.ReadOnlyError,
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                          vf.add_lines_with_ghosts,
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class TestWeave(TestCaseWithMemoryTransport, VersionedFileTestMixIn):
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    def get_file(self, name='foo'):
883
 
        return WeaveFile(name, get_transport(self.get_url('.')), create=True,
884
 
            get_scope=self.get_transaction)
 
883
        return WeaveFile(name, transport.get_transport(self.get_url('.')),
 
884
                         create=True,
 
885
                         get_scope=self.get_transaction)
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886
 
886
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    def get_file_corrupted_text(self):
887
 
        w = WeaveFile('foo', get_transport(self.get_url('.')), create=True,
888
 
            get_scope=self.get_transaction)
 
888
        w = WeaveFile('foo', transport.get_transport(self.get_url('.')),
 
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                      create=True,
 
890
                      get_scope=self.get_transaction)
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        w.add_lines('v1', [], ['hello\n'])
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        w.add_lines('v2', ['v1'], ['hello\n', 'there\n'])
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893
 
919
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        return w
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922
 
921
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    def reopen_file(self, name='foo', create=False):
922
 
        return WeaveFile(name, get_transport(self.get_url('.')), create=create,
923
 
            get_scope=self.get_transaction)
 
924
        return WeaveFile(name, transport.get_transport(self.get_url('.')),
 
925
                         create=create,
 
926
                         get_scope=self.get_transaction)
924
927
 
925
928
    def test_no_implicit_create(self):
926
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        self.assertRaises(errors.NoSuchFile,
927
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                          WeaveFile,
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                          'foo',
929
 
                          get_transport(self.get_url('.')),
 
932
                          transport.get_transport(self.get_url('.')),
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                          get_scope=self.get_transaction)
931
934
 
932
935
    def get_factory(self):
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        # we should be able to read from http with a versioned file.
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        vf = self.get_file()
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        # try an empty file access
1002
 
        readonly_vf = self.get_factory()('foo', get_transport(self.get_readonly_url('.')))
 
1005
        readonly_vf = self.get_factory()('foo', transport.get_transport(
 
1006
                self.get_readonly_url('.')))
1003
1007
        self.assertEqual([], readonly_vf.versions())
 
1008
 
 
1009
    def test_readonly_http_works_with_feeling(self):
 
1010
        # we should be able to read from http with a versioned file.
 
1011
        vf = self.get_file()
1004
1012
        # now with feeling.
1005
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        vf.add_lines('1', [], ['a\n'])
1006
1014
        vf.add_lines('2', ['1'], ['b\n', 'a\n'])
1007
 
        readonly_vf = self.get_factory()('foo', get_transport(self.get_readonly_url('.')))
 
1015
        readonly_vf = self.get_factory()('foo', transport.get_transport(
 
1016
                self.get_readonly_url('.')))
1008
1017
        self.assertEqual(['1', '2'], vf.versions())
 
1018
        self.assertEqual(['1', '2'], readonly_vf.versions())
1009
1019
        for version in readonly_vf.versions():
1010
1020
            readonly_vf.get_lines(version)
1011
1021
 
1013
1023
class TestWeaveHTTP(TestCaseWithWebserver, TestReadonlyHttpMixin):
1014
1024
 
1015
1025
    def get_file(self):
1016
 
        return WeaveFile('foo', get_transport(self.get_url('.')), create=True,
1017
 
            get_scope=self.get_transaction)
 
1026
        return WeaveFile('foo', transport.get_transport(self.get_url('.')),
 
1027
                         create=True,
 
1028
                         get_scope=self.get_transaction)
1018
1029
 
1019
1030
    def get_factory(self):
1020
1031
        return WeaveFile
1264
1275
class TestWeaveMerge(TestCaseWithMemoryTransport, MergeCasesMixin):
1265
1276
 
1266
1277
    def get_file(self, name='foo'):
1267
 
        return WeaveFile(name, get_transport(self.get_url('.')), create=True)
 
1278
        return WeaveFile(name, transport.get_transport(self.get_url('.')),
 
1279
                         create=True)
1268
1280
 
1269
1281
    def log_contents(self, w):
1270
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        self.log('weave is:')
1469
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            transport.mkdir('.')
1470
1482
        files = self.factory(transport)
1471
1483
        if self.cleanup is not None:
1472
 
            self.addCleanup(lambda:self.cleanup(files))
 
1484
            self.addCleanup(self.cleanup, files)
1473
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        return files
1474
1486
 
1475
1487
    def get_simple_key(self, suffix):
1580
1592
        # All texts should be output.
1581
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        self.assertEqual(set(keys), seen)
1582
1594
 
 
1595
    def test_clear_cache(self):
 
1596
        files = self.get_versionedfiles()
 
1597
        files.clear_cache()
 
1598
 
1583
1599
    def test_construct(self):
1584
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        """Each parameterised test can be constructed on a transport."""
1585
1601
        files = self.get_versionedfiles()
1737
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            f.get_record_stream([key_b], 'unordered', True
1738
1754
                ).next().get_bytes_as('fulltext'))
1739
1755
 
 
1756
    def test_get_known_graph_ancestry(self):
 
1757
        f = self.get_versionedfiles()
 
1758
        if not self.graph:
 
1759
            raise TestNotApplicable('ancestry info only relevant with graph.')
 
1760
        key_a = self.get_simple_key('a')
 
1761
        key_b = self.get_simple_key('b')
 
1762
        key_c = self.get_simple_key('c')
 
1763
        # A
 
1764
        # |\
 
1765
        # | B
 
1766
        # |/
 
1767
        # C
 
1768
        f.add_lines(key_a, [], ['\n'])
 
1769
        f.add_lines(key_b, [key_a], ['\n'])
 
1770
        f.add_lines(key_c, [key_a, key_b], ['\n'])
 
1771
        kg = f.get_known_graph_ancestry([key_c])
 
1772
        self.assertIsInstance(kg, _mod_graph.KnownGraph)
 
1773
        self.assertEqual([key_a, key_b, key_c], list(kg.topo_sort()))
 
1774
 
 
1775
    def test_known_graph_with_fallbacks(self):
 
1776
        f = self.get_versionedfiles('files')
 
1777
        if not self.graph:
 
1778
            raise TestNotApplicable('ancestry info only relevant with graph.')
 
1779
        if getattr(f, 'add_fallback_versioned_files', None) is None:
 
1780
            raise TestNotApplicable("%s doesn't support fallbacks"
 
1781
                                    % (f.__class__.__name__,))
 
1782
        key_a = self.get_simple_key('a')
 
1783
        key_b = self.get_simple_key('b')
 
1784
        key_c = self.get_simple_key('c')
 
1785
        # A     only in fallback
 
1786
        # |\
 
1787
        # | B
 
1788
        # |/
 
1789
        # C
 
1790
        g = self.get_versionedfiles('fallback')
 
1791
        g.add_lines(key_a, [], ['\n'])
 
1792
        f.add_fallback_versioned_files(g)
 
1793
        f.add_lines(key_b, [key_a], ['\n'])
 
1794
        f.add_lines(key_c, [key_a, key_b], ['\n'])
 
1795
        kg = f.get_known_graph_ancestry([key_c])
 
1796
        self.assertEqual([key_a, key_b, key_c], list(kg.topo_sort()))
 
1797
 
1740
1798
    def test_get_record_stream_empty(self):
1741
1799
        """An empty stream can be requested without error."""
1742
1800
        f = self.get_versionedfiles()
2391
2449
        else:
2392
2450
            self.assertIdenticalVersionedFile(source, files)
2393
2451
 
 
2452
    def test_insert_record_stream_long_parent_chain_out_of_order(self):
 
2453
        """An out of order stream can either error or work."""
 
2454
        if not self.graph:
 
2455
            raise TestNotApplicable('ancestry info only relevant with graph.')
 
2456
        # Create a reasonably long chain of records based on each other, where
 
2457
        # most will be deltas.
 
2458
        source = self.get_versionedfiles('source')
 
2459
        parents = ()
 
2460
        keys = []
 
2461
        content = [('same same %d\n' % n) for n in range(500)]
 
2462
        for letter in 'abcdefghijklmnopqrstuvwxyz':
 
2463
            key = ('key-' + letter,)
 
2464
            if self.key_length == 2:
 
2465
                key = ('prefix',) + key
 
2466
            content.append('content for ' + letter + '\n')
 
2467
            source.add_lines(key, parents, content)
 
2468
            keys.append(key)
 
2469
            parents = (key,)
 
2470
        # Create a stream of these records, excluding the first record that the
 
2471
        # rest ultimately depend upon, and insert it into a new vf.
 
2472
        streams = []
 
2473
        for key in reversed(keys):
 
2474
            streams.append(source.get_record_stream([key], 'unordered', False))
 
2475
        deltas = chain(*streams[:-1])
 
2476
        files = self.get_versionedfiles()
 
2477
        try:
 
2478
            files.insert_record_stream(deltas)
 
2479
        except RevisionNotPresent:
 
2480
            # Must not have corrupted the file.
 
2481
            files.check()
 
2482
        else:
 
2483
            # Must only report either just the first key as a missing parent,
 
2484
            # no key as missing (for nodelta scenarios).
 
2485
            missing = set(files.get_missing_compression_parent_keys())
 
2486
            missing.discard(keys[0])
 
2487
            self.assertEqual(set(), missing)
 
2488
 
2394
2489
    def get_knit_delta_source(self):
2395
2490
        """Get a source that can produce a stream with knit delta records,
2396
2491
        regardless of this test's scenario.
2464
2559
        # the ordering here is to make a tree so that dumb searches have
2465
2560
        # more changes to muck up.
2466
2561
 
2467
 
        class InstrumentedProgress(progress.DummyProgress):
 
2562
        class InstrumentedProgress(progress.ProgressTask):
2468
2563
 
2469
2564
            def __init__(self):
2470
 
 
2471
 
                progress.DummyProgress.__init__(self)
 
2565
                progress.ProgressTask.__init__(self)
2472
2566
                self.updates = []
2473
2567
 
2474
2568
            def update(self, msg=None, current=None, total=None):