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Viewing changes to bzrlib/tests/test_workingtree.py

  • Committer: Martin Pool
  • Date: 2005-05-25 00:48:22 UTC
  • Revision ID: mbp@sourcefrog.net-20050525004822-7665484961d59734
- Refactor diff code into one that works purely on 
  Tree objects

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1
 
# Copyright (C) 2005, 2006 Canonical Ltd
2
 
# Authors:  Robert Collins <robert.collins@canonical.com>
3
 
#
4
 
# This program is free software; you can redistribute it and/or modify
5
 
# it under the terms of the GNU General Public License as published by
6
 
# the Free Software Foundation; either version 2 of the License, or
7
 
# (at your option) any later version.
8
 
#
9
 
# This program is distributed in the hope that it will be useful,
10
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
 
# GNU General Public License for more details.
13
 
#
14
 
# You should have received a copy of the GNU General Public License
15
 
# along with this program; if not, write to the Free Software
16
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
 
 
18
 
from cStringIO import StringIO
19
 
import os
20
 
 
21
 
from bzrlib import (
22
 
    bzrdir,
23
 
    conflicts,
24
 
    errors,
25
 
    workingtree,
26
 
    )
27
 
from bzrlib.branch import Branch
28
 
from bzrlib.bzrdir import BzrDir
29
 
from bzrlib.lockdir import LockDir
30
 
from bzrlib.mutabletree import needs_tree_write_lock
31
 
from bzrlib.tests import TestCase, TestCaseWithTransport, TestSkipped
32
 
from bzrlib.transport import get_transport
33
 
from bzrlib.workingtree import (
34
 
    TreeEntry,
35
 
    TreeDirectory,
36
 
    TreeFile,
37
 
    TreeLink,
38
 
    )
39
 
 
40
 
 
41
 
class TestTreeDirectory(TestCaseWithTransport):
42
 
 
43
 
    def test_kind_character(self):
44
 
        self.assertEqual(TreeDirectory().kind_character(), '/')
45
 
 
46
 
 
47
 
class TestTreeEntry(TestCaseWithTransport):
48
 
 
49
 
    def test_kind_character(self):
50
 
        self.assertEqual(TreeEntry().kind_character(), '???')
51
 
 
52
 
 
53
 
class TestTreeFile(TestCaseWithTransport):
54
 
 
55
 
    def test_kind_character(self):
56
 
        self.assertEqual(TreeFile().kind_character(), '')
57
 
 
58
 
 
59
 
class TestTreeLink(TestCaseWithTransport):
60
 
 
61
 
    def test_kind_character(self):
62
 
        self.assertEqual(TreeLink().kind_character(), '')
63
 
 
64
 
 
65
 
class TestDefaultFormat(TestCaseWithTransport):
66
 
 
67
 
    def test_get_set_default_format(self):
68
 
        old_format = workingtree.WorkingTreeFormat.get_default_format()
69
 
        # default is 3
70
 
        self.assertTrue(isinstance(old_format, workingtree.WorkingTreeFormat3))
71
 
        workingtree.WorkingTreeFormat.set_default_format(SampleTreeFormat())
72
 
        try:
73
 
            # the default branch format is used by the meta dir format
74
 
            # which is not the default bzrdir format at this point
75
 
            dir = bzrdir.BzrDirMetaFormat1().initialize('.')
76
 
            dir.create_repository()
77
 
            dir.create_branch()
78
 
            result = dir.create_workingtree()
79
 
            self.assertEqual(result, 'A tree')
80
 
        finally:
81
 
            workingtree.WorkingTreeFormat.set_default_format(old_format)
82
 
        self.assertEqual(old_format, workingtree.WorkingTreeFormat.get_default_format())
83
 
 
84
 
    def test_open(self):
85
 
        tree = self.make_branch_and_tree('.')
86
 
        open_direct = workingtree.WorkingTree.open('.')
87
 
        self.assertEqual(tree.basedir, open_direct.basedir)
88
 
        open_no_args = workingtree.WorkingTree.open()
89
 
        self.assertEqual(tree.basedir, open_no_args.basedir)
90
 
 
91
 
    def test_open_containing(self):
92
 
        tree = self.make_branch_and_tree('.')
93
 
        open_direct, relpath = workingtree.WorkingTree.open_containing('.')
94
 
        self.assertEqual(tree.basedir, open_direct.basedir)
95
 
        self.assertEqual('', relpath)
96
 
        open_no_args, relpath = workingtree.WorkingTree.open_containing()
97
 
        self.assertEqual(tree.basedir, open_no_args.basedir)
98
 
        self.assertEqual('', relpath)
99
 
        open_subdir, relpath = workingtree.WorkingTree.open_containing('subdir')
100
 
        self.assertEqual(tree.basedir, open_subdir.basedir)
101
 
        self.assertEqual('subdir', relpath)
102
 
 
103
 
 
104
 
class SampleTreeFormat(workingtree.WorkingTreeFormat):
105
 
    """A sample format
106
 
 
107
 
    this format is initializable, unsupported to aid in testing the
108
 
    open and open_downlevel routines.
109
 
    """
110
 
 
111
 
    def get_format_string(self):
112
 
        """See WorkingTreeFormat.get_format_string()."""
113
 
        return "Sample tree format."
114
 
 
115
 
    def initialize(self, a_bzrdir, revision_id=None, from_branch=None,
116
 
                   accelerator_tree=None, hardlink=False):
117
 
        """Sample branches cannot be created."""
118
 
        t = a_bzrdir.get_workingtree_transport(self)
119
 
        t.put_bytes('format', self.get_format_string())
120
 
        return 'A tree'
121
 
 
122
 
    def is_supported(self):
123
 
        return False
124
 
 
125
 
    def open(self, transport, _found=False):
126
 
        return "opened tree."
127
 
 
128
 
 
129
 
class TestWorkingTreeFormat(TestCaseWithTransport):
130
 
    """Tests for the WorkingTreeFormat facility."""
131
 
 
132
 
    def test_find_format(self):
133
 
        # is the right format object found for a working tree?
134
 
        # create a branch with a few known format objects.
135
 
        self.build_tree(["foo/", "bar/"])
136
 
        def check_format(format, url):
137
 
            dir = format._matchingbzrdir.initialize(url)
138
 
            dir.create_repository()
139
 
            dir.create_branch()
140
 
            format.initialize(dir)
141
 
            t = get_transport(url)
142
 
            found_format = workingtree.WorkingTreeFormat.find_format(dir)
143
 
            self.failUnless(isinstance(found_format, format.__class__))
144
 
        check_format(workingtree.WorkingTreeFormat3(), "bar")
145
 
 
146
 
    def test_find_format_no_tree(self):
147
 
        dir = bzrdir.BzrDirMetaFormat1().initialize('.')
148
 
        self.assertRaises(errors.NoWorkingTree,
149
 
                          workingtree.WorkingTreeFormat.find_format,
150
 
                          dir)
151
 
 
152
 
    def test_find_format_unknown_format(self):
153
 
        dir = bzrdir.BzrDirMetaFormat1().initialize('.')
154
 
        dir.create_repository()
155
 
        dir.create_branch()
156
 
        SampleTreeFormat().initialize(dir)
157
 
        self.assertRaises(errors.UnknownFormatError,
158
 
                          workingtree.WorkingTreeFormat.find_format,
159
 
                          dir)
160
 
 
161
 
    def test_register_unregister_format(self):
162
 
        format = SampleTreeFormat()
163
 
        # make a control dir
164
 
        dir = bzrdir.BzrDirMetaFormat1().initialize('.')
165
 
        dir.create_repository()
166
 
        dir.create_branch()
167
 
        # make a branch
168
 
        format.initialize(dir)
169
 
        # register a format for it.
170
 
        workingtree.WorkingTreeFormat.register_format(format)
171
 
        # which branch.Open will refuse (not supported)
172
 
        self.assertRaises(errors.UnsupportedFormatError, workingtree.WorkingTree.open, '.')
173
 
        # but open_downlevel will work
174
 
        self.assertEqual(format.open(dir), workingtree.WorkingTree.open_downlevel('.'))
175
 
        # unregister the format
176
 
        workingtree.WorkingTreeFormat.unregister_format(format)
177
 
 
178
 
 
179
 
class TestWorkingTreeFormat3(TestCaseWithTransport):
180
 
    """Tests specific to WorkingTreeFormat3."""
181
 
 
182
 
    def test_disk_layout(self):
183
 
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
184
 
        control.create_repository()
185
 
        control.create_branch()
186
 
        tree = workingtree.WorkingTreeFormat3().initialize(control)
187
 
        # we want:
188
 
        # format 'Bazaar-NG Working Tree format 3'
189
 
        # inventory = blank inventory
190
 
        # pending-merges = ''
191
 
        # stat-cache = ??
192
 
        # no inventory.basis yet
193
 
        t = control.get_workingtree_transport(None)
194
 
        self.assertEqualDiff('Bazaar-NG Working Tree format 3',
195
 
                             t.get('format').read())
196
 
        self.assertEqualDiff(t.get('inventory').read(),
197
 
                              '<inventory format="5">\n'
198
 
                              '</inventory>\n',
199
 
                             )
200
 
        self.assertEqualDiff('### bzr hashcache v5\n',
201
 
                             t.get('stat-cache').read())
202
 
        self.assertFalse(t.has('inventory.basis'))
203
 
        # no last-revision file means 'None' or 'NULLREVISION'
204
 
        self.assertFalse(t.has('last-revision'))
205
 
        # TODO RBC 20060210 do a commit, check the inventory.basis is created
206
 
        # correctly and last-revision file becomes present.
207
 
 
208
 
    def test_uses_lockdir(self):
209
 
        """WorkingTreeFormat3 uses its own LockDir:
210
 
 
211
 
            - lock is a directory
212
 
            - when the WorkingTree is locked, LockDir can see that
213
 
        """
214
 
        t = self.get_transport()
215
 
        url = self.get_url()
216
 
        dir = bzrdir.BzrDirMetaFormat1().initialize(url)
217
 
        repo = dir.create_repository()
218
 
        branch = dir.create_branch()
219
 
        try:
220
 
            tree = workingtree.WorkingTreeFormat3().initialize(dir)
221
 
        except errors.NotLocalUrl:
222
 
            raise TestSkipped('Not a local URL')
223
 
        self.assertIsDirectory('.bzr', t)
224
 
        self.assertIsDirectory('.bzr/checkout', t)
225
 
        self.assertIsDirectory('.bzr/checkout/lock', t)
226
 
        our_lock = LockDir(t, '.bzr/checkout/lock')
227
 
        self.assertEquals(our_lock.peek(), None)
228
 
        tree.lock_write()
229
 
        self.assertTrue(our_lock.peek())
230
 
        tree.unlock()
231
 
        self.assertEquals(our_lock.peek(), None)
232
 
 
233
 
    def test_missing_pending_merges(self):
234
 
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
235
 
        control.create_repository()
236
 
        control.create_branch()
237
 
        tree = workingtree.WorkingTreeFormat3().initialize(control)
238
 
        tree._transport.delete("pending-merges")
239
 
        self.assertEqual([], tree.get_parent_ids())
240
 
 
241
 
 
242
 
class TestFormat2WorkingTree(TestCaseWithTransport):
243
 
    """Tests that are specific to format 2 trees."""
244
 
 
245
 
    def create_format2_tree(self, url):
246
 
        return self.make_branch_and_tree(
247
 
            url, format=bzrdir.BzrDirFormat6())
248
 
 
249
 
    def test_conflicts(self):
250
 
        # test backwards compatability
251
 
        tree = self.create_format2_tree('.')
252
 
        self.assertRaises(errors.UnsupportedOperation, tree.set_conflicts,
253
 
                          None)
254
 
        file('lala.BASE', 'wb').write('labase')
255
 
        expected = conflicts.ContentsConflict('lala')
256
 
        self.assertEqual(list(tree.conflicts()), [expected])
257
 
        file('lala', 'wb').write('la')
258
 
        tree.add('lala', 'lala-id')
259
 
        expected = conflicts.ContentsConflict('lala', file_id='lala-id')
260
 
        self.assertEqual(list(tree.conflicts()), [expected])
261
 
        file('lala.THIS', 'wb').write('lathis')
262
 
        file('lala.OTHER', 'wb').write('laother')
263
 
        # When "text conflict"s happen, stem, THIS and OTHER are text
264
 
        expected = conflicts.TextConflict('lala', file_id='lala-id')
265
 
        self.assertEqual(list(tree.conflicts()), [expected])
266
 
        os.unlink('lala.OTHER')
267
 
        os.mkdir('lala.OTHER')
268
 
        expected = conflicts.ContentsConflict('lala', file_id='lala-id')
269
 
        self.assertEqual(list(tree.conflicts()), [expected])
270
 
 
271
 
 
272
 
class InstrumentedTree(object):
273
 
    """A instrumented tree to check the needs_tree_write_lock decorator."""
274
 
 
275
 
    def __init__(self):
276
 
        self._locks = []
277
 
 
278
 
    def lock_tree_write(self):
279
 
        self._locks.append('t')
280
 
 
281
 
    @needs_tree_write_lock
282
 
    def method_with_tree_write_lock(self, *args, **kwargs):
283
 
        """A lock_tree_write decorated method that returns its arguments."""
284
 
        return args, kwargs
285
 
 
286
 
    @needs_tree_write_lock
287
 
    def method_that_raises(self):
288
 
        """This method causes an exception when called with parameters.
289
 
 
290
 
        This allows the decorator code to be checked - it should still call
291
 
        unlock.
292
 
        """
293
 
 
294
 
    def unlock(self):
295
 
        self._locks.append('u')
296
 
 
297
 
 
298
 
class TestInstrumentedTree(TestCase):
299
 
 
300
 
    def test_needs_tree_write_lock(self):
301
 
        """@needs_tree_write_lock should be semantically transparent."""
302
 
        tree = InstrumentedTree()
303
 
        self.assertEqual(
304
 
            'method_with_tree_write_lock',
305
 
            tree.method_with_tree_write_lock.__name__)
306
 
        self.assertEqual(
307
 
            "A lock_tree_write decorated method that returns its arguments.",
308
 
            tree.method_with_tree_write_lock.__doc__)
309
 
        args = (1, 2, 3)
310
 
        kwargs = {'a':'b'}
311
 
        result = tree.method_with_tree_write_lock(1,2,3, a='b')
312
 
        self.assertEqual((args, kwargs), result)
313
 
        self.assertEqual(['t', 'u'], tree._locks)
314
 
        self.assertRaises(TypeError, tree.method_that_raises, 'foo')
315
 
        self.assertEqual(['t', 'u', 't', 'u'], tree._locks)
316
 
 
317
 
 
318
 
class TestRevert(TestCaseWithTransport):
319
 
 
320
 
    def test_revert_conflicts_recursive(self):
321
 
        this_tree = self.make_branch_and_tree('this-tree')
322
 
        self.build_tree_contents([('this-tree/foo/',),
323
 
                                  ('this-tree/foo/bar', 'bar')])
324
 
        this_tree.add(['foo', 'foo/bar'])
325
 
        this_tree.commit('created foo/bar')
326
 
        other_tree = this_tree.bzrdir.sprout('other-tree').open_workingtree()
327
 
        self.build_tree_contents([('other-tree/foo/bar', 'baz')])
328
 
        other_tree.commit('changed bar')
329
 
        self.build_tree_contents([('this-tree/foo/bar', 'qux')])
330
 
        this_tree.commit('changed qux')
331
 
        this_tree.merge_from_branch(other_tree.branch)
332
 
        self.assertEqual(1, len(this_tree.conflicts()))
333
 
        this_tree.revert(['foo'])
334
 
        self.assertEqual(0, len(this_tree.conflicts()))
335
 
 
336
 
 
337
 
class TestAutoResolve(TestCaseWithTransport):
338
 
 
339
 
    def test_auto_resolve(self):
340
 
        base = self.make_branch_and_tree('base')
341
 
        self.build_tree_contents([('base/hello', 'Hello')])
342
 
        base.add('hello', 'hello_id')
343
 
        base.commit('Hello')
344
 
        other = base.bzrdir.sprout('other').open_workingtree()
345
 
        self.build_tree_contents([('other/hello', 'hELLO')])
346
 
        other.commit('Case switch')
347
 
        this = base.bzrdir.sprout('this').open_workingtree()
348
 
        self.failUnlessExists('this/hello')
349
 
        self.build_tree_contents([('this/hello', 'Hello World')])
350
 
        this.commit('Add World')
351
 
        this.merge_from_branch(other.branch)
352
 
        self.assertEqual([conflicts.TextConflict('hello', None, 'hello_id')],
353
 
                         this.conflicts())
354
 
        this.auto_resolve()
355
 
        self.assertEqual([conflicts.TextConflict('hello', None, 'hello_id')],
356
 
                         this.conflicts())
357
 
        self.build_tree_contents([('this/hello', '<<<<<<<')])
358
 
        this.auto_resolve()
359
 
        self.assertEqual([conflicts.TextConflict('hello', None, 'hello_id')],
360
 
                         this.conflicts())
361
 
        self.build_tree_contents([('this/hello', '=======')])
362
 
        this.auto_resolve()
363
 
        self.assertEqual([conflicts.TextConflict('hello', None, 'hello_id')],
364
 
                         this.conflicts())
365
 
        self.build_tree_contents([('this/hello', '\n>>>>>>>')])
366
 
        remaining, resolved = this.auto_resolve()
367
 
        self.assertEqual([conflicts.TextConflict('hello', None, 'hello_id')],
368
 
                         this.conflicts())
369
 
        self.assertEqual([], resolved)
370
 
        self.build_tree_contents([('this/hello', 'hELLO wORLD')])
371
 
        remaining, resolved = this.auto_resolve()
372
 
        self.assertEqual([], this.conflicts())
373
 
        self.assertEqual([conflicts.TextConflict('hello', None, 'hello_id')],
374
 
                         resolved)
375
 
        self.failIfExists('this/hello.BASE')
376
 
 
377
 
    def test_auto_resolve_dir(self):
378
 
        tree = self.make_branch_and_tree('tree')
379
 
        self.build_tree(['tree/hello/'])
380
 
        tree.add('hello', 'hello-id')
381
 
        file_conflict = conflicts.TextConflict('file', None, 'hello-id')
382
 
        tree.set_conflicts(conflicts.ConflictList([file_conflict]))
383
 
        tree.auto_resolve()
384
 
 
385
 
 
386
 
class TestFindTrees(TestCaseWithTransport):
387
 
 
388
 
    def test_find_trees(self):
389
 
        self.make_branch_and_tree('foo')
390
 
        self.make_branch_and_tree('foo/bar')
391
 
        # Sticking a tree inside a control dir is heinous, so let's skip it
392
 
        self.make_branch_and_tree('foo/.bzr/baz')
393
 
        self.make_branch('qux')
394
 
        trees = workingtree.WorkingTree.find_trees('.')
395
 
        self.assertEqual(2, len(list(trees)))