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Viewing changes to bzrlib/tests/test__dirstate_helpers.py

  • Committer: Patch Queue Manager
  • Date: 2012-09-17 11:14:25 UTC
  • mfrom: (6554.1.1 stack-remove-unknown)
  • Revision ID: pqm@pqm.ubuntu.com-20120917111425-4i6r0ze0v9zm33bu
(vila) Fix obscure and misleading warning when trying to delete an unknown
 config option. (Vincent Ladeuil)

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# Copyright (C) 2007 Canonical Ltd
 
1
# Copyright (C) 2007-2011 Canonical Ltd
2
2
#
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3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
12
12
#
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
16
 
17
17
"""Tests for the compiled dirstate helpers."""
18
18
 
19
19
import bisect
20
20
import os
 
21
import time
21
22
 
22
23
from bzrlib import (
23
24
    dirstate,
 
25
    errors,
 
26
    osutils,
24
27
    tests,
25
 
    )
26
 
from bzrlib.tests import test_dirstate
27
 
 
28
 
 
29
 
class _CompiledDirstateHelpersFeature(tests.Feature):
30
 
    def _probe(self):
31
 
        try:
32
 
            import bzrlib._dirstate_helpers_c
33
 
        except ImportError:
34
 
            return False
35
 
        return True
36
 
 
37
 
    def feature_name(self):
38
 
        return 'bzrlib._dirstate_helpers_c'
39
 
 
40
 
CompiledDirstateHelpersFeature = _CompiledDirstateHelpersFeature()
 
28
    _dirstate_helpers_py,
 
29
    )
 
30
from bzrlib.tests import (
 
31
    test_dirstate,
 
32
    )
 
33
from bzrlib.tests.test_osutils import dir_reader_scenarios
 
34
from bzrlib.tests.scenarios import (
 
35
    load_tests_apply_scenarios,
 
36
    multiply_scenarios,
 
37
    )
 
38
from bzrlib.tests import (
 
39
    features,
 
40
    )
 
41
 
 
42
 
 
43
load_tests = load_tests_apply_scenarios
 
44
 
 
45
 
 
46
compiled_dirstate_helpers_feature = features.ModuleAvailableFeature(
 
47
    'bzrlib._dirstate_helpers_pyx')
 
48
 
 
49
 
 
50
# FIXME: we should also parametrize against SHA1Provider !
 
51
 
 
52
ue_scenarios = [('dirstate_Python',
 
53
    {'update_entry': dirstate.py_update_entry})]
 
54
if compiled_dirstate_helpers_feature.available():
 
55
    update_entry = compiled_dirstate_helpers_feature.module.update_entry
 
56
    ue_scenarios.append(('dirstate_Pyrex', {'update_entry': update_entry}))
 
57
 
 
58
pe_scenarios = [('dirstate_Python',
 
59
    {'_process_entry': dirstate.ProcessEntryPython})]
 
60
if compiled_dirstate_helpers_feature.available():
 
61
    process_entry = compiled_dirstate_helpers_feature.module.ProcessEntryC
 
62
    pe_scenarios.append(('dirstate_Pyrex', {'_process_entry': process_entry}))
 
63
 
 
64
helper_scenarios = [('dirstate_Python', {'helpers': _dirstate_helpers_py})]
 
65
if compiled_dirstate_helpers_feature.available():
 
66
    helper_scenarios.append(('dirstate_Pyrex',
 
67
        {'helpers': compiled_dirstate_helpers_feature.module}))
41
68
 
42
69
 
43
70
class TestBisectPathMixin(object):
196
223
 
197
224
 
198
225
class TestBisectPathLeft(tests.TestCase, TestBisectPathMixin):
199
 
    """Run all Bisect Path tests against _bisect_path_left_py."""
 
226
    """Run all Bisect Path tests against _bisect_path_left."""
200
227
 
201
228
    def get_bisect_path(self):
202
 
        from bzrlib._dirstate_helpers_py import _bisect_path_left_py
203
 
        return _bisect_path_left_py
 
229
        from bzrlib._dirstate_helpers_py import _bisect_path_left
 
230
        return _bisect_path_left
204
231
 
205
232
    def get_bisect(self):
206
233
        return bisect.bisect_left, 0
207
234
 
208
235
 
209
236
class TestCompiledBisectPathLeft(TestBisectPathLeft):
210
 
    """Run all Bisect Path tests against _bisect_path_right_c"""
 
237
    """Run all Bisect Path tests against _bisect_path_lect"""
211
238
 
212
 
    _test_needs_features = [CompiledDirstateHelpersFeature]
 
239
    _test_needs_features = [compiled_dirstate_helpers_feature]
213
240
 
214
241
    def get_bisect_path(self):
215
 
        from bzrlib._dirstate_helpers_c import _bisect_path_left_c
216
 
        return _bisect_path_left_c
 
242
        from bzrlib._dirstate_helpers_pyx import _bisect_path_left
 
243
        return _bisect_path_left
217
244
 
218
245
 
219
246
class TestBisectPathRight(tests.TestCase, TestBisectPathMixin):
220
 
    """Run all Bisect Path tests against _bisect_path_right_py"""
 
247
    """Run all Bisect Path tests against _bisect_path_right"""
221
248
 
222
249
    def get_bisect_path(self):
223
 
        from bzrlib._dirstate_helpers_py import _bisect_path_right_py
224
 
        return _bisect_path_right_py
 
250
        from bzrlib._dirstate_helpers_py import _bisect_path_right
 
251
        return _bisect_path_right
225
252
 
226
253
    def get_bisect(self):
227
254
        return bisect.bisect_right, -1
228
255
 
229
256
 
230
257
class TestCompiledBisectPathRight(TestBisectPathRight):
231
 
    """Run all Bisect Path tests against _bisect_path_right_c"""
 
258
    """Run all Bisect Path tests against _bisect_path_right"""
232
259
 
233
 
    _test_needs_features = [CompiledDirstateHelpersFeature]
 
260
    _test_needs_features = [compiled_dirstate_helpers_feature]
234
261
 
235
262
    def get_bisect_path(self):
236
 
        from bzrlib._dirstate_helpers_c import _bisect_path_right_c
237
 
        return _bisect_path_right_c
 
263
        from bzrlib._dirstate_helpers_pyx import _bisect_path_right
 
264
        return _bisect_path_right
238
265
 
239
266
 
240
267
class TestBisectDirblock(tests.TestCase):
251
278
 
252
279
    def get_bisect_dirblock(self):
253
280
        """Return an implementation of bisect_dirblock"""
254
 
        from bzrlib._dirstate_helpers_py import bisect_dirblock_py
255
 
        return bisect_dirblock_py
 
281
        from bzrlib._dirstate_helpers_py import bisect_dirblock
 
282
        return bisect_dirblock
256
283
 
257
284
    def assertBisect(self, dirblocks, split_dirblocks, path, *args, **kwargs):
258
285
        """Assert that bisect_split works like bisect_left on the split paths.
342
369
    compiled version.
343
370
    """
344
371
 
345
 
    _test_needs_features = [CompiledDirstateHelpersFeature]
 
372
    _test_needs_features = [compiled_dirstate_helpers_feature]
346
373
 
347
374
    def get_bisect_dirblock(self):
348
 
        from bzrlib._dirstate_helpers_c import bisect_dirblock_c
349
 
        return bisect_dirblock_c
 
375
        from bzrlib._dirstate_helpers_pyx import bisect_dirblock
 
376
        return bisect_dirblock
350
377
 
351
378
 
352
379
class TestCmpByDirs(tests.TestCase):
361
388
 
362
389
    def get_cmp_by_dirs(self):
363
390
        """Get a specific implementation of cmp_by_dirs."""
364
 
        from bzrlib._dirstate_helpers_py import cmp_by_dirs_py
365
 
        return cmp_by_dirs_py
 
391
        from bzrlib._dirstate_helpers_py import cmp_by_dirs
 
392
        return cmp_by_dirs
366
393
 
367
394
    def assertCmpByDirs(self, expected, str1, str2):
368
395
        """Compare the two strings, in both directions.
464
491
class TestCompiledCmpByDirs(TestCmpByDirs):
465
492
    """Test the pyrex implementation of cmp_by_dirs"""
466
493
 
467
 
    _test_needs_features = [CompiledDirstateHelpersFeature]
 
494
    _test_needs_features = [compiled_dirstate_helpers_feature]
468
495
 
469
496
    def get_cmp_by_dirs(self):
470
 
        from bzrlib._dirstate_helpers_c import cmp_by_dirs_c
471
 
        return cmp_by_dirs_c
 
497
        from bzrlib._dirstate_helpers_pyx import cmp_by_dirs
 
498
        return cmp_by_dirs
472
499
 
473
500
 
474
501
class TestCmpPathByDirblock(tests.TestCase):
483
510
 
484
511
    def get_cmp_path_by_dirblock(self):
485
512
        """Get a specific implementation of _cmp_path_by_dirblock."""
486
 
        from bzrlib._dirstate_helpers_py import _cmp_path_by_dirblock_py
487
 
        return _cmp_path_by_dirblock_py
 
513
        from bzrlib._dirstate_helpers_py import _cmp_path_by_dirblock
 
514
        return _cmp_path_by_dirblock
488
515
 
489
516
    def assertCmpPathByDirblock(self, paths):
490
517
        """Compare all paths and make sure they evaluate to the correct order.
615
642
class TestCompiledCmpPathByDirblock(TestCmpPathByDirblock):
616
643
    """Test the pyrex implementation of _cmp_path_by_dirblock"""
617
644
 
618
 
    _test_needs_features = [CompiledDirstateHelpersFeature]
 
645
    _test_needs_features = [compiled_dirstate_helpers_feature]
619
646
 
620
647
    def get_cmp_by_dirs(self):
621
 
        from bzrlib._dirstate_helpers_c import _cmp_path_by_dirblock_c
622
 
        return _cmp_path_by_dirblock_c
 
648
        from bzrlib._dirstate_helpers_pyx import _cmp_path_by_dirblock
 
649
        return _cmp_path_by_dirblock
623
650
 
624
651
 
625
652
class TestMemRChr(tests.TestCase):
626
653
    """Test memrchr functionality"""
627
654
 
628
 
    _test_needs_features = [CompiledDirstateHelpersFeature]
 
655
    _test_needs_features = [compiled_dirstate_helpers_feature]
629
656
 
630
657
    def assertMemRChr(self, expected, s, c):
631
 
        from bzrlib._dirstate_helpers_c import _py_memrchr
 
658
        from bzrlib._dirstate_helpers_pyx import _py_memrchr
632
659
        self.assertEqual(expected, _py_memrchr(s, c))
633
660
 
634
661
    def test_missing(self):
675
702
    implementation.
676
703
    """
677
704
 
 
705
    # inherits scenarios from test_dirstate
 
706
 
678
707
    def get_read_dirblocks(self):
679
 
        from bzrlib._dirstate_helpers_py import _read_dirblocks_py
680
 
        return _read_dirblocks_py
 
708
        from bzrlib._dirstate_helpers_py import _read_dirblocks
 
709
        return _read_dirblocks
681
710
 
682
711
    def test_smoketest(self):
683
712
        """Make sure that we can create and read back a simple file."""
691
720
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
692
721
                         state._dirblock_state)
693
722
 
 
723
    def test_trailing_garbage(self):
 
724
        tree, state, expected = self.create_basic_dirstate()
 
725
        # On Unix, we can write extra data as long as we haven't read yet, but
 
726
        # on Win32, if you've opened the file with FILE_SHARE_READ, trying to
 
727
        # open it in append mode will fail.
 
728
        state.unlock()
 
729
        f = open('dirstate', 'ab')
 
730
        try:
 
731
            # Add bogus trailing garbage
 
732
            f.write('bogus\n')
 
733
        finally:
 
734
            f.close()
 
735
            state.lock_read()
 
736
        e = self.assertRaises(errors.DirstateCorrupt,
 
737
                              state._read_dirblocks_if_needed)
 
738
        # Make sure we mention the bogus characters in the error
 
739
        self.assertContainsRe(str(e), 'bogus')
 
740
 
694
741
 
695
742
class TestCompiledReadDirblocks(TestReadDirblocks):
696
743
    """Test the pyrex implementation of _read_dirblocks"""
697
744
 
698
 
    _test_needs_features = [CompiledDirstateHelpersFeature]
 
745
    _test_needs_features = [compiled_dirstate_helpers_feature]
699
746
 
700
747
    def get_read_dirblocks(self):
701
 
        from bzrlib._dirstate_helpers_c import _read_dirblocks_c
702
 
        return _read_dirblocks_c
 
748
        from bzrlib._dirstate_helpers_pyx import _read_dirblocks
 
749
        return _read_dirblocks
703
750
 
704
751
 
705
752
class TestUsingCompiledIfAvailable(tests.TestCase):
706
753
    """Check that any compiled functions that are available are the default.
707
754
 
708
755
    It is possible to have typos, etc in the import line, such that
709
 
    _dirstate_helpers_c is actually available, but the compiled functions are
 
756
    _dirstate_helpers_pyx is actually available, but the compiled functions are
710
757
    not being used.
711
758
    """
712
759
 
713
760
    def test_bisect_dirblock(self):
714
 
        if CompiledDirstateHelpersFeature.available():
715
 
            from bzrlib._dirstate_helpers_c import bisect_dirblock_c
716
 
            self.assertIs(bisect_dirblock_c, dirstate.bisect_dirblock)
 
761
        if compiled_dirstate_helpers_feature.available():
 
762
            from bzrlib._dirstate_helpers_pyx import bisect_dirblock
717
763
        else:
718
 
            from bzrlib._dirstate_helpers_py import bisect_dirblock_py
719
 
            self.assertIs(bisect_dirblock_py, dirstate.bisect_dirblock)
 
764
            from bzrlib._dirstate_helpers_py import bisect_dirblock
 
765
        self.assertIs(bisect_dirblock, dirstate.bisect_dirblock)
720
766
 
721
767
    def test__bisect_path_left(self):
722
 
        if CompiledDirstateHelpersFeature.available():
723
 
            from bzrlib._dirstate_helpers_c import _bisect_path_left_c
724
 
            self.assertIs(_bisect_path_left_c, dirstate._bisect_path_left)
 
768
        if compiled_dirstate_helpers_feature.available():
 
769
            from bzrlib._dirstate_helpers_pyx import _bisect_path_left
725
770
        else:
726
 
            from bzrlib._dirstate_helpers_py import _bisect_path_left_py
727
 
            self.assertIs(_bisect_path_left_py, dirstate._bisect_path_left)
 
771
            from bzrlib._dirstate_helpers_py import _bisect_path_left
 
772
        self.assertIs(_bisect_path_left, dirstate._bisect_path_left)
728
773
 
729
774
    def test__bisect_path_right(self):
730
 
        if CompiledDirstateHelpersFeature.available():
731
 
            from bzrlib._dirstate_helpers_c import _bisect_path_right_c
732
 
            self.assertIs(_bisect_path_right_c, dirstate._bisect_path_right)
 
775
        if compiled_dirstate_helpers_feature.available():
 
776
            from bzrlib._dirstate_helpers_pyx import _bisect_path_right
733
777
        else:
734
 
            from bzrlib._dirstate_helpers_py import _bisect_path_right_py
735
 
            self.assertIs(_bisect_path_right_py, dirstate._bisect_path_right)
 
778
            from bzrlib._dirstate_helpers_py import _bisect_path_right
 
779
        self.assertIs(_bisect_path_right, dirstate._bisect_path_right)
736
780
 
737
781
    def test_cmp_by_dirs(self):
738
 
        if CompiledDirstateHelpersFeature.available():
739
 
            from bzrlib._dirstate_helpers_c import cmp_by_dirs_c
740
 
            self.assertIs(cmp_by_dirs_c, dirstate.cmp_by_dirs)
 
782
        if compiled_dirstate_helpers_feature.available():
 
783
            from bzrlib._dirstate_helpers_pyx import cmp_by_dirs
741
784
        else:
742
 
            from bzrlib._dirstate_helpers_py import cmp_by_dirs_py
743
 
            self.assertIs(cmp_by_dirs_py, dirstate.cmp_by_dirs)
 
785
            from bzrlib._dirstate_helpers_py import cmp_by_dirs
 
786
        self.assertIs(cmp_by_dirs, dirstate.cmp_by_dirs)
744
787
 
745
788
    def test__read_dirblocks(self):
746
 
        if CompiledDirstateHelpersFeature.available():
747
 
            from bzrlib._dirstate_helpers_c import _read_dirblocks_c
748
 
            self.assertIs(_read_dirblocks_c, dirstate._read_dirblocks)
749
 
        else:
750
 
            from bzrlib._dirstate_helpers_py import _read_dirblocks_py
751
 
            self.assertIs(_read_dirblocks_py, dirstate._read_dirblocks)
752
 
 
 
789
        if compiled_dirstate_helpers_feature.available():
 
790
            from bzrlib._dirstate_helpers_pyx import _read_dirblocks
 
791
        else:
 
792
            from bzrlib._dirstate_helpers_py import _read_dirblocks
 
793
        self.assertIs(_read_dirblocks, dirstate._read_dirblocks)
 
794
 
 
795
    def test_update_entry(self):
 
796
        if compiled_dirstate_helpers_feature.available():
 
797
            from bzrlib._dirstate_helpers_pyx import update_entry
 
798
        else:
 
799
            from bzrlib.dirstate import update_entry
 
800
        self.assertIs(update_entry, dirstate.update_entry)
 
801
 
 
802
    def test_process_entry(self):
 
803
        if compiled_dirstate_helpers_feature.available():
 
804
            from bzrlib._dirstate_helpers_pyx import ProcessEntryC
 
805
            self.assertIs(ProcessEntryC, dirstate._process_entry)
 
806
        else:
 
807
            from bzrlib.dirstate import ProcessEntryPython
 
808
            self.assertIs(ProcessEntryPython, dirstate._process_entry)
 
809
 
 
810
 
 
811
class TestUpdateEntry(test_dirstate.TestCaseWithDirState):
 
812
    """Test the DirState.update_entry functions"""
 
813
 
 
814
    scenarios = multiply_scenarios(
 
815
        dir_reader_scenarios(), ue_scenarios)
 
816
 
 
817
    # Set by load_tests
 
818
    update_entry = None
 
819
 
 
820
    def setUp(self):
 
821
        super(TestUpdateEntry, self).setUp()
 
822
        self.overrideAttr(dirstate, 'update_entry', self.update_entry)
 
823
 
 
824
    def get_state_with_a(self):
 
825
        """Create a DirState tracking a single object named 'a'"""
 
826
        state = test_dirstate.InstrumentedDirState.initialize('dirstate')
 
827
        self.addCleanup(state.unlock)
 
828
        state.add('a', 'a-id', 'file', None, '')
 
829
        entry = state._get_entry(0, path_utf8='a')
 
830
        return state, entry
 
831
 
 
832
    def test_observed_sha1_cachable(self):
 
833
        state, entry = self.get_state_with_a()
 
834
        state.save()
 
835
        atime = time.time() - 10
 
836
        self.build_tree(['a'])
 
837
        statvalue = test_dirstate._FakeStat.from_stat(os.lstat('a'))
 
838
        statvalue.st_mtime = statvalue.st_ctime = atime
 
839
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
840
                         state._dirblock_state)
 
841
        state._observed_sha1(entry, "foo", statvalue)
 
842
        self.assertEqual('foo', entry[1][0][1])
 
843
        packed_stat = dirstate.pack_stat(statvalue)
 
844
        self.assertEqual(packed_stat, entry[1][0][4])
 
845
        self.assertEqual(dirstate.DirState.IN_MEMORY_HASH_MODIFIED,
 
846
                         state._dirblock_state)
 
847
 
 
848
    def test_observed_sha1_not_cachable(self):
 
849
        state, entry = self.get_state_with_a()
 
850
        state.save()
 
851
        oldval = entry[1][0][1]
 
852
        oldstat = entry[1][0][4]
 
853
        self.build_tree(['a'])
 
854
        statvalue = os.lstat('a')
 
855
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
856
                         state._dirblock_state)
 
857
        state._observed_sha1(entry, "foo", statvalue)
 
858
        self.assertEqual(oldval, entry[1][0][1])
 
859
        self.assertEqual(oldstat, entry[1][0][4])
 
860
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
861
                         state._dirblock_state)
 
862
 
 
863
    def test_update_entry(self):
 
864
        state, _ = self.get_state_with_a()
 
865
        tree = self.make_branch_and_tree('tree')
 
866
        tree.lock_write()
 
867
        empty_revid = tree.commit('empty')
 
868
        self.build_tree(['tree/a'])
 
869
        tree.add(['a'], ['a-id'])
 
870
        with_a_id = tree.commit('with_a')
 
871
        self.addCleanup(tree.unlock)
 
872
        state.set_parent_trees(
 
873
            [(empty_revid, tree.branch.repository.revision_tree(empty_revid))],
 
874
            [])
 
875
        entry = state._get_entry(0, path_utf8='a')
 
876
        self.build_tree(['a'])
 
877
        # Add one where we don't provide the stat or sha already
 
878
        self.assertEqual(('', 'a', 'a-id'), entry[0])
 
879
        self.assertEqual(('f', '', 0, False, dirstate.DirState.NULLSTAT),
 
880
                         entry[1][0])
 
881
        # Flush the buffers to disk
 
882
        state.save()
 
883
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
884
                         state._dirblock_state)
 
885
 
 
886
        stat_value = os.lstat('a')
 
887
        packed_stat = dirstate.pack_stat(stat_value)
 
888
        link_or_sha1 = self.update_entry(state, entry, abspath='a',
 
889
                                          stat_value=stat_value)
 
890
        self.assertEqual(None, link_or_sha1)
 
891
 
 
892
        # The dirblock entry should not have computed or cached the file's
 
893
        # sha1, but it did update the files' st_size. However, this is not
 
894
        # worth writing a dirstate file for, so we leave the state UNMODIFIED
 
895
        self.assertEqual(('f', '', 14, False, dirstate.DirState.NULLSTAT),
 
896
                         entry[1][0])
 
897
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
898
                         state._dirblock_state)
 
899
        mode = stat_value.st_mode
 
900
        self.assertEqual([('is_exec', mode, False)], state._log)
 
901
 
 
902
        state.save()
 
903
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
904
                         state._dirblock_state)
 
905
 
 
906
        # Roll the clock back so the file is guaranteed to look too new. We
 
907
        # should still not compute the sha1.
 
908
        state.adjust_time(-10)
 
909
        del state._log[:]
 
910
 
 
911
        link_or_sha1 = self.update_entry(state, entry, abspath='a',
 
912
                                          stat_value=stat_value)
 
913
        self.assertEqual([('is_exec', mode, False)], state._log)
 
914
        self.assertEqual(None, link_or_sha1)
 
915
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
916
                         state._dirblock_state)
 
917
        self.assertEqual(('f', '', 14, False, dirstate.DirState.NULLSTAT),
 
918
                         entry[1][0])
 
919
        state.save()
 
920
 
 
921
        # If it is cachable (the clock has moved forward) but new it still
 
922
        # won't calculate the sha or cache it.
 
923
        state.adjust_time(+20)
 
924
        del state._log[:]
 
925
        link_or_sha1 = dirstate.update_entry(state, entry, abspath='a',
 
926
                                          stat_value=stat_value)
 
927
        self.assertEqual(None, link_or_sha1)
 
928
        self.assertEqual([('is_exec', mode, False)], state._log)
 
929
        self.assertEqual(('f', '', 14, False, dirstate.DirState.NULLSTAT),
 
930
                         entry[1][0])
 
931
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
932
                         state._dirblock_state)
 
933
 
 
934
        # If the file is no longer new, and the clock has been moved forward
 
935
        # sufficiently, it will cache the sha.
 
936
        del state._log[:]
 
937
        state.set_parent_trees(
 
938
            [(with_a_id, tree.branch.repository.revision_tree(with_a_id))],
 
939
            [])
 
940
        entry = state._get_entry(0, path_utf8='a')
 
941
 
 
942
        link_or_sha1 = self.update_entry(state, entry, abspath='a',
 
943
                                          stat_value=stat_value)
 
944
        self.assertEqual('b50e5406bb5e153ebbeb20268fcf37c87e1ecfb6',
 
945
                         link_or_sha1)
 
946
        self.assertEqual([('is_exec', mode, False), ('sha1', 'a')],
 
947
                          state._log)
 
948
        self.assertEqual(('f', link_or_sha1, 14, False, packed_stat),
 
949
                         entry[1][0])
 
950
 
 
951
        # Subsequent calls will just return the cached value
 
952
        del state._log[:]
 
953
        link_or_sha1 = self.update_entry(state, entry, abspath='a',
 
954
                                          stat_value=stat_value)
 
955
        self.assertEqual('b50e5406bb5e153ebbeb20268fcf37c87e1ecfb6',
 
956
                         link_or_sha1)
 
957
        self.assertEqual([], state._log)
 
958
        self.assertEqual(('f', link_or_sha1, 14, False, packed_stat),
 
959
                         entry[1][0])
 
960
 
 
961
    def test_update_entry_symlink(self):
 
962
        """Update entry should read symlinks."""
 
963
        self.requireFeature(features.SymlinkFeature)
 
964
        state, entry = self.get_state_with_a()
 
965
        state.save()
 
966
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
967
                         state._dirblock_state)
 
968
        os.symlink('target', 'a')
 
969
 
 
970
        state.adjust_time(-10) # Make the symlink look new
 
971
        stat_value = os.lstat('a')
 
972
        packed_stat = dirstate.pack_stat(stat_value)
 
973
        link_or_sha1 = self.update_entry(state, entry, abspath='a',
 
974
                                          stat_value=stat_value)
 
975
        self.assertEqual('target', link_or_sha1)
 
976
        self.assertEqual([('read_link', 'a', '')], state._log)
 
977
        # Dirblock is not updated (the link is too new)
 
978
        self.assertEqual([('l', '', 6, False, dirstate.DirState.NULLSTAT)],
 
979
                         entry[1])
 
980
        # The file entry turned into a symlink, that is considered
 
981
        # HASH modified worthy.
 
982
        self.assertEqual(dirstate.DirState.IN_MEMORY_HASH_MODIFIED,
 
983
                         state._dirblock_state)
 
984
 
 
985
        # Because the stat_value looks new, we should re-read the target
 
986
        del state._log[:]
 
987
        link_or_sha1 = self.update_entry(state, entry, abspath='a',
 
988
                                          stat_value=stat_value)
 
989
        self.assertEqual('target', link_or_sha1)
 
990
        self.assertEqual([('read_link', 'a', '')], state._log)
 
991
        self.assertEqual([('l', '', 6, False, dirstate.DirState.NULLSTAT)],
 
992
                         entry[1])
 
993
        state.save()
 
994
        state.adjust_time(+20) # Skip into the future, all files look old
 
995
        del state._log[:]
 
996
        link_or_sha1 = self.update_entry(state, entry, abspath='a',
 
997
                                          stat_value=stat_value)
 
998
        # The symlink stayed a symlink. So while it is new enough to cache, we
 
999
        # don't bother setting the flag, because it is not really worth saving
 
1000
        # (when we stat the symlink, we'll have paged in the target.)
 
1001
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
1002
                         state._dirblock_state)
 
1003
        self.assertEqual('target', link_or_sha1)
 
1004
        # We need to re-read the link because only now can we cache it
 
1005
        self.assertEqual([('read_link', 'a', '')], state._log)
 
1006
        self.assertEqual([('l', 'target', 6, False, packed_stat)],
 
1007
                         entry[1])
 
1008
 
 
1009
        del state._log[:]
 
1010
        # Another call won't re-read the link
 
1011
        self.assertEqual([], state._log)
 
1012
        link_or_sha1 = self.update_entry(state, entry, abspath='a',
 
1013
                                          stat_value=stat_value)
 
1014
        self.assertEqual('target', link_or_sha1)
 
1015
        self.assertEqual([('l', 'target', 6, False, packed_stat)],
 
1016
                         entry[1])
 
1017
 
 
1018
    def do_update_entry(self, state, entry, abspath):
 
1019
        stat_value = os.lstat(abspath)
 
1020
        return self.update_entry(state, entry, abspath, stat_value)
 
1021
 
 
1022
    def test_update_entry_dir(self):
 
1023
        state, entry = self.get_state_with_a()
 
1024
        self.build_tree(['a/'])
 
1025
        self.assertIs(None, self.do_update_entry(state, entry, 'a'))
 
1026
 
 
1027
    def test_update_entry_dir_unchanged(self):
 
1028
        state, entry = self.get_state_with_a()
 
1029
        self.build_tree(['a/'])
 
1030
        state.adjust_time(+20)
 
1031
        self.assertIs(None, self.do_update_entry(state, entry, 'a'))
 
1032
        # a/ used to be a file, but is now a directory, worth saving
 
1033
        self.assertEqual(dirstate.DirState.IN_MEMORY_MODIFIED,
 
1034
                         state._dirblock_state)
 
1035
        state.save()
 
1036
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
1037
                         state._dirblock_state)
 
1038
        # No changes to a/ means not worth saving.
 
1039
        self.assertIs(None, self.do_update_entry(state, entry, 'a'))
 
1040
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
1041
                         state._dirblock_state)
 
1042
        # Change the last-modified time for the directory
 
1043
        t = time.time() - 100.0
 
1044
        try:
 
1045
            os.utime('a', (t, t))
 
1046
        except OSError:
 
1047
            # It looks like Win32 + FAT doesn't allow to change times on a dir.
 
1048
            raise tests.TestSkipped("can't update mtime of a dir on FAT")
 
1049
        saved_packed_stat = entry[1][0][-1]
 
1050
        self.assertIs(None, self.do_update_entry(state, entry, 'a'))
 
1051
        # We *do* go ahead and update the information in the dirblocks, but we
 
1052
        # don't bother setting IN_MEMORY_MODIFIED because it is trivial to
 
1053
        # recompute.
 
1054
        self.assertNotEqual(saved_packed_stat, entry[1][0][-1])
 
1055
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
1056
                         state._dirblock_state)
 
1057
 
 
1058
    def test_update_entry_file_unchanged(self):
 
1059
        state, _ = self.get_state_with_a()
 
1060
        tree = self.make_branch_and_tree('tree')
 
1061
        tree.lock_write()
 
1062
        self.build_tree(['tree/a'])
 
1063
        tree.add(['a'], ['a-id'])
 
1064
        with_a_id = tree.commit('witha')
 
1065
        self.addCleanup(tree.unlock)
 
1066
        state.set_parent_trees(
 
1067
            [(with_a_id, tree.branch.repository.revision_tree(with_a_id))],
 
1068
            [])
 
1069
        entry = state._get_entry(0, path_utf8='a')
 
1070
        self.build_tree(['a'])
 
1071
        sha1sum = 'b50e5406bb5e153ebbeb20268fcf37c87e1ecfb6'
 
1072
        state.adjust_time(+20)
 
1073
        self.assertEqual(sha1sum, self.do_update_entry(state, entry, 'a'))
 
1074
        self.assertEqual(dirstate.DirState.IN_MEMORY_MODIFIED,
 
1075
                         state._dirblock_state)
 
1076
        state.save()
 
1077
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
1078
                         state._dirblock_state)
 
1079
        self.assertEqual(sha1sum, self.do_update_entry(state, entry, 'a'))
 
1080
        self.assertEqual(dirstate.DirState.IN_MEMORY_UNMODIFIED,
 
1081
                         state._dirblock_state)
 
1082
 
 
1083
    def test_update_entry_tree_reference(self):
 
1084
        state = test_dirstate.InstrumentedDirState.initialize('dirstate')
 
1085
        self.addCleanup(state.unlock)
 
1086
        state.add('r', 'r-id', 'tree-reference', None, '')
 
1087
        self.build_tree(['r/'])
 
1088
        entry = state._get_entry(0, path_utf8='r')
 
1089
        self.do_update_entry(state, entry, 'r')
 
1090
        entry = state._get_entry(0, path_utf8='r')
 
1091
        self.assertEqual('t', entry[1][0][0])
 
1092
 
 
1093
    def create_and_test_file(self, state, entry):
 
1094
        """Create a file at 'a' and verify the state finds it during update.
 
1095
 
 
1096
        The state should already be versioning *something* at 'a'. This makes
 
1097
        sure that state.update_entry recognizes it as a file.
 
1098
        """
 
1099
        self.build_tree(['a'])
 
1100
        stat_value = os.lstat('a')
 
1101
        packed_stat = dirstate.pack_stat(stat_value)
 
1102
 
 
1103
        link_or_sha1 = self.do_update_entry(state, entry, abspath='a')
 
1104
        self.assertEqual(None, link_or_sha1)
 
1105
        self.assertEqual([('f', '', 14, False, dirstate.DirState.NULLSTAT)],
 
1106
                         entry[1])
 
1107
        return packed_stat
 
1108
 
 
1109
    def create_and_test_dir(self, state, entry):
 
1110
        """Create a directory at 'a' and verify the state finds it.
 
1111
 
 
1112
        The state should already be versioning *something* at 'a'. This makes
 
1113
        sure that state.update_entry recognizes it as a directory.
 
1114
        """
 
1115
        self.build_tree(['a/'])
 
1116
        stat_value = os.lstat('a')
 
1117
        packed_stat = dirstate.pack_stat(stat_value)
 
1118
 
 
1119
        link_or_sha1 = self.do_update_entry(state, entry, abspath='a')
 
1120
        self.assertIs(None, link_or_sha1)
 
1121
        self.assertEqual([('d', '', 0, False, packed_stat)], entry[1])
 
1122
 
 
1123
        return packed_stat
 
1124
 
 
1125
    # FIXME: Add unicode version
 
1126
    def create_and_test_symlink(self, state, entry):
 
1127
        """Create a symlink at 'a' and verify the state finds it.
 
1128
 
 
1129
        The state should already be versioning *something* at 'a'. This makes
 
1130
        sure that state.update_entry recognizes it as a symlink.
 
1131
 
 
1132
        This should not be called if this platform does not have symlink
 
1133
        support.
 
1134
        """
 
1135
        # caller should care about skipping test on platforms without symlinks
 
1136
        os.symlink('path/to/foo', 'a')
 
1137
 
 
1138
        stat_value = os.lstat('a')
 
1139
        packed_stat = dirstate.pack_stat(stat_value)
 
1140
 
 
1141
        link_or_sha1 = self.do_update_entry(state, entry, abspath='a')
 
1142
        self.assertEqual('path/to/foo', link_or_sha1)
 
1143
        self.assertEqual([('l', 'path/to/foo', 11, False, packed_stat)],
 
1144
                         entry[1])
 
1145
        return packed_stat
 
1146
 
 
1147
    def test_update_file_to_dir(self):
 
1148
        """If a file changes to a directory we return None for the sha.
 
1149
        We also update the inventory record.
 
1150
        """
 
1151
        state, entry = self.get_state_with_a()
 
1152
        # The file sha1 won't be cached unless the file is old
 
1153
        state.adjust_time(+10)
 
1154
        self.create_and_test_file(state, entry)
 
1155
        os.remove('a')
 
1156
        self.create_and_test_dir(state, entry)
 
1157
 
 
1158
    def test_update_file_to_symlink(self):
 
1159
        """File becomes a symlink"""
 
1160
        self.requireFeature(features.SymlinkFeature)
 
1161
        state, entry = self.get_state_with_a()
 
1162
        # The file sha1 won't be cached unless the file is old
 
1163
        state.adjust_time(+10)
 
1164
        self.create_and_test_file(state, entry)
 
1165
        os.remove('a')
 
1166
        self.create_and_test_symlink(state, entry)
 
1167
 
 
1168
    def test_update_dir_to_file(self):
 
1169
        """Directory becoming a file updates the entry."""
 
1170
        state, entry = self.get_state_with_a()
 
1171
        # The file sha1 won't be cached unless the file is old
 
1172
        state.adjust_time(+10)
 
1173
        self.create_and_test_dir(state, entry)
 
1174
        os.rmdir('a')
 
1175
        self.create_and_test_file(state, entry)
 
1176
 
 
1177
    def test_update_dir_to_symlink(self):
 
1178
        """Directory becomes a symlink"""
 
1179
        self.requireFeature(features.SymlinkFeature)
 
1180
        state, entry = self.get_state_with_a()
 
1181
        # The symlink target won't be cached if it isn't old
 
1182
        state.adjust_time(+10)
 
1183
        self.create_and_test_dir(state, entry)
 
1184
        os.rmdir('a')
 
1185
        self.create_and_test_symlink(state, entry)
 
1186
 
 
1187
    def test_update_symlink_to_file(self):
 
1188
        """Symlink becomes a file"""
 
1189
        self.requireFeature(features.SymlinkFeature)
 
1190
        state, entry = self.get_state_with_a()
 
1191
        # The symlink and file info won't be cached unless old
 
1192
        state.adjust_time(+10)
 
1193
        self.create_and_test_symlink(state, entry)
 
1194
        os.remove('a')
 
1195
        self.create_and_test_file(state, entry)
 
1196
 
 
1197
    def test_update_symlink_to_dir(self):
 
1198
        """Symlink becomes a directory"""
 
1199
        self.requireFeature(features.SymlinkFeature)
 
1200
        state, entry = self.get_state_with_a()
 
1201
        # The symlink target won't be cached if it isn't old
 
1202
        state.adjust_time(+10)
 
1203
        self.create_and_test_symlink(state, entry)
 
1204
        os.remove('a')
 
1205
        self.create_and_test_dir(state, entry)
 
1206
 
 
1207
    def test__is_executable_win32(self):
 
1208
        state, entry = self.get_state_with_a()
 
1209
        self.build_tree(['a'])
 
1210
 
 
1211
        # Make sure we are using the win32 implementation of _is_executable
 
1212
        state._is_executable = state._is_executable_win32
 
1213
 
 
1214
        # The file on disk is not executable, but we are marking it as though
 
1215
        # it is. With _is_executable_win32 we ignore what is on disk.
 
1216
        entry[1][0] = ('f', '', 0, True, dirstate.DirState.NULLSTAT)
 
1217
 
 
1218
        stat_value = os.lstat('a')
 
1219
        packed_stat = dirstate.pack_stat(stat_value)
 
1220
 
 
1221
        state.adjust_time(-10) # Make sure everything is new
 
1222
        self.update_entry(state, entry, abspath='a', stat_value=stat_value)
 
1223
 
 
1224
        # The row is updated, but the executable bit stays set.
 
1225
        self.assertEqual([('f', '', 14, True, dirstate.DirState.NULLSTAT)],
 
1226
                         entry[1])
 
1227
 
 
1228
        # Make the disk object look old enough to cache (but it won't cache the
 
1229
        # sha as it is a new file).
 
1230
        state.adjust_time(+20)
 
1231
        digest = 'b50e5406bb5e153ebbeb20268fcf37c87e1ecfb6'
 
1232
        self.update_entry(state, entry, abspath='a', stat_value=stat_value)
 
1233
        self.assertEqual([('f', '', 14, True, dirstate.DirState.NULLSTAT)],
 
1234
            entry[1])
 
1235
 
 
1236
    def _prepare_tree(self):
 
1237
        # Create a tree
 
1238
        text = 'Hello World\n'
 
1239
        tree = self.make_branch_and_tree('tree')
 
1240
        self.build_tree_contents([('tree/a file', text)])
 
1241
        tree.add('a file', 'a-file-id')
 
1242
        # Note: dirstate does not sha prior to the first commit
 
1243
        # so commit now in order for the test to work
 
1244
        tree.commit('first')
 
1245
        return tree, text
 
1246
 
 
1247
    def test_sha1provider_sha1_used(self):
 
1248
        tree, text = self._prepare_tree()
 
1249
        state = dirstate.DirState.from_tree(tree, 'dirstate',
 
1250
            UppercaseSHA1Provider())
 
1251
        self.addCleanup(state.unlock)
 
1252
        expected_sha = osutils.sha_string(text.upper() + "foo")
 
1253
        entry = state._get_entry(0, path_utf8='a file')
 
1254
        state._sha_cutoff_time()
 
1255
        state._cutoff_time += 10
 
1256
        sha1 = self.update_entry(state, entry, 'tree/a file',
 
1257
                                 os.lstat('tree/a file'))
 
1258
        self.assertEqual(expected_sha, sha1)
 
1259
 
 
1260
    def test_sha1provider_stat_and_sha1_used(self):
 
1261
        tree, text = self._prepare_tree()
 
1262
        tree.lock_write()
 
1263
        self.addCleanup(tree.unlock)
 
1264
        state = tree._current_dirstate()
 
1265
        state._sha1_provider = UppercaseSHA1Provider()
 
1266
        # If we used the standard provider, it would look like nothing has
 
1267
        # changed
 
1268
        file_ids_changed = [change[0] for change
 
1269
                            in tree.iter_changes(tree.basis_tree())]
 
1270
        self.assertEqual(['a-file-id'], file_ids_changed)
 
1271
 
 
1272
 
 
1273
class UppercaseSHA1Provider(dirstate.SHA1Provider):
 
1274
    """A custom SHA1Provider."""
 
1275
 
 
1276
    def sha1(self, abspath):
 
1277
        return self.stat_and_sha1(abspath)[1]
 
1278
 
 
1279
    def stat_and_sha1(self, abspath):
 
1280
        file_obj = file(abspath, 'rb')
 
1281
        try:
 
1282
            statvalue = os.fstat(file_obj.fileno())
 
1283
            text = ''.join(file_obj.readlines())
 
1284
            sha1 = osutils.sha_string(text.upper() + "foo")
 
1285
        finally:
 
1286
            file_obj.close()
 
1287
        return statvalue, sha1
 
1288
 
 
1289
 
 
1290
class TestProcessEntry(test_dirstate.TestCaseWithDirState):
 
1291
 
 
1292
    scenarios = multiply_scenarios(dir_reader_scenarios(), pe_scenarios)
 
1293
 
 
1294
    # Set by load_tests
 
1295
    _process_entry = None
 
1296
 
 
1297
    def setUp(self):
 
1298
        super(TestProcessEntry, self).setUp()
 
1299
        self.overrideAttr(dirstate, '_process_entry', self._process_entry)
 
1300
 
 
1301
    def assertChangedFileIds(self, expected, tree):
 
1302
        tree.lock_read()
 
1303
        try:
 
1304
            file_ids = [info[0] for info
 
1305
                        in tree.iter_changes(tree.basis_tree())]
 
1306
        finally:
 
1307
            tree.unlock()
 
1308
        self.assertEqual(sorted(expected), sorted(file_ids))
 
1309
 
 
1310
    def test_exceptions_raised(self):
 
1311
        # This is a direct test of bug #495023, it relies on osutils.is_inside
 
1312
        # getting called in an inner function. Which makes it a bit brittle,
 
1313
        # but at least it does reproduce the bug.
 
1314
        tree = self.make_branch_and_tree('tree')
 
1315
        self.build_tree(['tree/file', 'tree/dir/', 'tree/dir/sub',
 
1316
                         'tree/dir2/', 'tree/dir2/sub2'])
 
1317
        tree.add(['file', 'dir', 'dir/sub', 'dir2', 'dir2/sub2'])
 
1318
        tree.commit('first commit')
 
1319
        tree.lock_read()
 
1320
        self.addCleanup(tree.unlock)
 
1321
        basis_tree = tree.basis_tree()
 
1322
        def is_inside_raises(*args, **kwargs):
 
1323
            raise RuntimeError('stop this')
 
1324
        self.overrideAttr(osutils, 'is_inside', is_inside_raises)
 
1325
        self.assertListRaises(RuntimeError, tree.iter_changes, basis_tree)
 
1326
 
 
1327
    def test_simple_changes(self):
 
1328
        tree = self.make_branch_and_tree('tree')
 
1329
        self.build_tree(['tree/file'])
 
1330
        tree.add(['file'], ['file-id'])
 
1331
        self.assertChangedFileIds([tree.get_root_id(), 'file-id'], tree)
 
1332
        tree.commit('one')
 
1333
        self.assertChangedFileIds([], tree)
 
1334
 
 
1335
    def test_sha1provider_stat_and_sha1_used(self):
 
1336
        tree = self.make_branch_and_tree('tree')
 
1337
        self.build_tree(['tree/file'])
 
1338
        tree.add(['file'], ['file-id'])
 
1339
        tree.commit('one')
 
1340
        tree.lock_write()
 
1341
        self.addCleanup(tree.unlock)
 
1342
        state = tree._current_dirstate()
 
1343
        state._sha1_provider = UppercaseSHA1Provider()
 
1344
        self.assertChangedFileIds(['file-id'], tree)
 
1345
 
 
1346
 
 
1347
class TestPackStat(tests.TestCase):
 
1348
    """Check packed representaton of stat values is robust on all inputs"""
 
1349
 
 
1350
    scenarios = helper_scenarios
 
1351
 
 
1352
    def pack(self, statlike_tuple):
 
1353
        return self.helpers.pack_stat(os.stat_result(statlike_tuple))
 
1354
 
 
1355
    @staticmethod
 
1356
    def unpack_field(packed_string, stat_field):
 
1357
        return _dirstate_helpers_py._unpack_stat(packed_string)[stat_field]
 
1358
 
 
1359
    def test_result(self):
 
1360
        self.assertEqual("AAAQAAAAABAAAAARAAAAAgAAAAEAAIHk",
 
1361
            self.pack((33252, 1, 2, 0, 0, 0, 4096, 15.5, 16.5, 17.5)))
 
1362
 
 
1363
    def test_giant_inode(self):
 
1364
        packed = self.pack((33252, 0xF80000ABC, 0, 0, 0, 0, 0, 0, 0, 0))
 
1365
        self.assertEqual(0x80000ABC, self.unpack_field(packed, "st_ino"))
 
1366
 
 
1367
    def test_giant_size(self):
 
1368
        packed = self.pack((33252, 0, 0, 0, 0, 0, (1 << 33) + 4096, 0, 0, 0))
 
1369
        self.assertEqual(4096, self.unpack_field(packed, "st_size"))
 
1370
 
 
1371
    def test_fractional_mtime(self):
 
1372
        packed = self.pack((33252, 0, 0, 0, 0, 0, 0, 0, 16.9375, 0))
 
1373
        self.assertEqual(16, self.unpack_field(packed, "st_mtime"))
 
1374
 
 
1375
    def test_ancient_mtime(self):
 
1376
        packed = self.pack((33252, 0, 0, 0, 0, 0, 0, 0, -11644473600.0, 0))
 
1377
        self.assertEqual(1240428288, self.unpack_field(packed, "st_mtime"))
 
1378
 
 
1379
    def test_distant_mtime(self):
 
1380
        packed = self.pack((33252, 0, 0, 0, 0, 0, 0, 0, 64060588800.0, 0))
 
1381
        self.assertEqual(3931046656, self.unpack_field(packed, "st_mtime"))
 
1382
 
 
1383
    def test_fractional_ctime(self):
 
1384
        packed = self.pack((33252, 0, 0, 0, 0, 0, 0, 0, 0, 17.5625))
 
1385
        self.assertEqual(17, self.unpack_field(packed, "st_ctime"))
 
1386
 
 
1387
    def test_ancient_ctime(self):
 
1388
        packed = self.pack((33252, 0, 0, 0, 0, 0, 0, 0, 0, -11644473600.0))
 
1389
        self.assertEqual(1240428288, self.unpack_field(packed, "st_ctime"))
 
1390
 
 
1391
    def test_distant_ctime(self):
 
1392
        packed = self.pack((33252, 0, 0, 0, 0, 0, 0, 0, 0, 64060588800.0))
 
1393
        self.assertEqual(3931046656, self.unpack_field(packed, "st_ctime"))
 
1394
 
 
1395
    def test_negative_dev(self):
 
1396
        packed = self.pack((33252, 0, -0xFFFFFCDE, 0, 0, 0, 0, 0, 0, 0))
 
1397
        self.assertEqual(0x322, self.unpack_field(packed, "st_dev"))