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Viewing changes to bzrlib/tests/test_delta.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2009-05-06 04:07:37 UTC
  • mfrom: (4332.1.1 integration)
  • Revision ID: pqm@pqm.ubuntu.com-20090506040737-tdiqyojy2uia33qb
Make it easier to blackbox test rules (Marius Kruger)

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bzrlib/tests/test_delta.py
 
1
# Copyright (C) 2007 Canonical Ltd
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
#
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
import os
 
18
from cStringIO import StringIO
 
19
 
 
20
from bzrlib import (
 
21
    delta as _mod_delta,
 
22
    revision as _mod_revision,
 
23
    tests,
 
24
    )
 
25
 
 
26
 
 
27
class InstrumentedReporter(object):
 
28
    def __init__(self):
 
29
        self.calls = []
 
30
 
 
31
    def report(self, file_id, path, versioned, renamed, modified, exe_change,
 
32
               kind):
 
33
        self.calls.append((file_id, path, versioned, renamed, modified,
 
34
                           exe_change, kind))
 
35
 
 
36
 
 
37
class TestReportChanges(tests.TestCase):
 
38
    """Test the new change reporting infrastructure"""
 
39
 
 
40
    def assertReport(self, expected, file_id='fid', path='path',
 
41
                     versioned_change='unchanged', renamed=False,
 
42
                     modified='unchanged', exe_change=False,
 
43
                     kind=('file', 'file'), old_path=None,
 
44
                     unversioned_filter=None, view_info=None):
 
45
        if expected is None:
 
46
            expected_lines = None
 
47
        else:
 
48
            expected_lines = [expected]
 
49
        self.assertReportLines(expected_lines, file_id, path,
 
50
                     versioned_change, renamed,
 
51
                     modified, exe_change,
 
52
                     kind, old_path,
 
53
                     unversioned_filter, view_info)
 
54
 
 
55
    def assertReportLines(self, expected_lines, file_id='fid', path='path',
 
56
                     versioned_change='unchanged', renamed=False,
 
57
                     modified='unchanged', exe_change=False,
 
58
                     kind=('file', 'file'), old_path=None,
 
59
                     unversioned_filter=None, view_info=None):
 
60
        result = []
 
61
        def result_line(format, *args):
 
62
            result.append(format % args)
 
63
        reporter = _mod_delta._ChangeReporter(result_line,
 
64
            unversioned_filter=unversioned_filter, view_info=view_info)
 
65
        reporter.report(file_id, (old_path, path), versioned_change, renamed,
 
66
            modified, exe_change, kind)
 
67
        if expected_lines is not None:
 
68
            for i in range(len(expected_lines)):
 
69
                self.assertEqualDiff(expected_lines[i], result[i])
 
70
        else:
 
71
            self.assertEqual([], result)
 
72
 
 
73
    def test_rename(self):
 
74
        self.assertReport('R   old => path', renamed=True, old_path='old')
 
75
        self.assertReport('    path')
 
76
        self.assertReport('RN  old => path', renamed=True, old_path='old',
 
77
                          modified='created', kind=(None, 'file'))
 
78
 
 
79
    def test_kind(self):
 
80
        self.assertReport(' K  path => path/', modified='kind changed',
 
81
                          kind=('file', 'directory'), old_path='path')
 
82
        self.assertReport(' K  path/ => path', modified='kind changed',
 
83
                          kind=('directory', 'file'), old_path='old')
 
84
        self.assertReport('RK  old => path/', renamed=True,
 
85
                          modified='kind changed',
 
86
                          kind=('file', 'directory'), old_path='old')
 
87
    def test_new(self):
 
88
        self.assertReport(' N  path/', modified='created',
 
89
                          kind=(None, 'directory'))
 
90
        self.assertReport('+   path/', versioned_change='added',
 
91
                          modified='unchanged', kind=(None, 'directory'))
 
92
        self.assertReport('+   path', versioned_change='added',
 
93
                          modified='unchanged', kind=(None, None))
 
94
        self.assertReport('+N  path/', versioned_change='added',
 
95
                          modified='created', kind=(None, 'directory'))
 
96
        self.assertReport('+M  path/', versioned_change='added',
 
97
                          modified='modified', kind=(None, 'directory'))
 
98
 
 
99
    def test_removal(self):
 
100
        self.assertReport(' D  path/', modified='deleted',
 
101
                          kind=('directory', None), old_path='old')
 
102
        self.assertReport('-   path/', versioned_change='removed',
 
103
                          old_path='path',
 
104
                          kind=(None, 'directory'))
 
105
        self.assertReport('-D  path', versioned_change='removed',
 
106
                          old_path='path',
 
107
                          modified='deleted', kind=('file', 'directory'))
 
108
 
 
109
    def test_modification(self):
 
110
        self.assertReport(' M  path', modified='modified')
 
111
        self.assertReport(' M* path', modified='modified', exe_change=True)
 
112
 
 
113
    def test_unversioned(self):
 
114
        # by default any unversioned file is output
 
115
        self.assertReport('?   subdir/foo~', file_id=None, path='subdir/foo~',
 
116
            old_path=None, versioned_change='unversioned',
 
117
            renamed=False, modified='created', exe_change=False,
 
118
            kind=(None, 'file'))
 
119
        # but we can choose to filter these. Probably that should be done
 
120
        # close to the tree, but this is a reasonable starting point.
 
121
        self.assertReport(None, file_id=None, path='subdir/foo~',
 
122
            old_path=None, versioned_change='unversioned',
 
123
            renamed=False, modified='created', exe_change=False,
 
124
            kind=(None, 'file'), unversioned_filter=lambda x:True)
 
125
 
 
126
    def test_view_filtering(self):
 
127
        # If a file in within the view, it should appear in the output
 
128
        expected_lines = [
 
129
            "Operating on whole tree but only reporting on 'my' view.",
 
130
            " M  path"]
 
131
        self.assertReportLines(expected_lines, modified='modified',
 
132
            view_info=('my',['path']))
 
133
        # If a file in outside the view, it should not appear in the output
 
134
        expected_lines = [
 
135
            "Operating on whole tree but only reporting on 'my' view."]
 
136
        self.assertReportLines(expected_lines, modified='modified',
 
137
            path="foo", view_info=('my',['path']))
 
138
 
 
139
    def assertChangesEqual(self,
 
140
                           file_id='fid',
 
141
                           paths=('path', 'path'),
 
142
                           content_change=False,
 
143
                           versioned=(True, True),
 
144
                           parent_id=('pid', 'pid'),
 
145
                           name=('name', 'name'),
 
146
                           kind=('file', 'file'),
 
147
                           executable=(False, False),
 
148
                           versioned_change='unchanged',
 
149
                           renamed=False,
 
150
                           modified='unchanged',
 
151
                           exe_change=False):
 
152
        reporter = InstrumentedReporter()
 
153
        _mod_delta.report_changes([(file_id, paths, content_change, versioned,
 
154
            parent_id, name, kind, executable)], reporter)
 
155
        output = reporter.calls[0]
 
156
        self.assertEqual(file_id, output[0])
 
157
        self.assertEqual(paths, output[1])
 
158
        self.assertEqual(versioned_change, output[2])
 
159
        self.assertEqual(renamed, output[3])
 
160
        self.assertEqual(modified, output[4])
 
161
        self.assertEqual(exe_change, output[5])
 
162
        self.assertEqual(kind, output[6])
 
163
 
 
164
    def test_report_changes(self):
 
165
        """Test change detection of report_changes"""
 
166
        #Ensure no changes are detected by default
 
167
        self.assertChangesEqual(modified='unchanged', renamed=False,
 
168
                                versioned_change='unchanged',
 
169
                                exe_change=False)
 
170
        self.assertChangesEqual(modified='kind changed',
 
171
                                kind=('file', 'directory'))
 
172
        self.assertChangesEqual(modified='created', kind=(None, 'directory'))
 
173
        self.assertChangesEqual(modified='deleted', kind=('directory', None))
 
174
        self.assertChangesEqual(content_change=True, modified='modified')
 
175
        self.assertChangesEqual(renamed=True, name=('old', 'new'))
 
176
        self.assertChangesEqual(renamed=True,
 
177
                                parent_id=('old-parent', 'new-parent'))
 
178
        self.assertChangesEqual(versioned_change='added',
 
179
                                versioned=(False, True))
 
180
        self.assertChangesEqual(versioned_change='removed',
 
181
                                versioned=(True, False))
 
182
        # execute bit is only detected as "changed" if the file is and was
 
183
        # a regular file.
 
184
        self.assertChangesEqual(exe_change=True, executable=(True, False))
 
185
        self.assertChangesEqual(exe_change=False, executable=(True, False),
 
186
                                kind=('directory', 'directory'))
 
187
        self.assertChangesEqual(exe_change=False, modified='kind changed',
 
188
                                executable=(False, True),
 
189
                                kind=('directory', 'file'))
 
190
        self.assertChangesEqual(parent_id=('pid', None))
 
191
 
 
192
        # Now make sure they all work together
 
193
        self.assertChangesEqual(versioned_change='removed',
 
194
                                modified='deleted', versioned=(True, False),
 
195
                                kind=('directory', None))
 
196
        self.assertChangesEqual(versioned_change='removed',
 
197
                                modified='created', versioned=(True, False),
 
198
                                kind=(None, 'file'))
 
199
        self.assertChangesEqual(versioned_change='removed',
 
200
                                modified='modified', renamed=True,
 
201
                                exe_change=True, versioned=(True, False),
 
202
                                content_change=True, name=('old', 'new'),
 
203
                                executable=(False, True))
 
204
 
 
205
    def test_report_unversioned(self):
 
206
        """Unversioned entries are reported well."""
 
207
        self.assertChangesEqual(file_id=None, paths=(None, 'full/path'),
 
208
                           content_change=True,
 
209
                           versioned=(False, False),
 
210
                           parent_id=(None, None),
 
211
                           name=(None, 'path'),
 
212
                           kind=(None, 'file'),
 
213
                           executable=(None, False),
 
214
                           versioned_change='unversioned',
 
215
                           renamed=False,
 
216
                           modified='created',
 
217
                           exe_change=False)
 
218
 
 
219
 
 
220
class TestChangesFrom(tests.TestCaseWithTransport):
 
221
 
 
222
    def show_string(self, delta, *args,  **kwargs):
 
223
        to_file = StringIO()
 
224
        delta.show(to_file, *args, **kwargs)
 
225
        return to_file.getvalue()
 
226
 
 
227
    def test_kind_change(self):
 
228
        """Doing a status when a file has changed kind should work"""
 
229
        tree = self.make_branch_and_tree('.')
 
230
        self.build_tree(['filename'])
 
231
        tree.add('filename', 'file-id')
 
232
        tree.commit('added filename')
 
233
        os.unlink('filename')
 
234
        self.build_tree(['filename/'])
 
235
        delta = tree.changes_from(tree.basis_tree())
 
236
        self.assertEqual([('filename', 'file-id', 'file', 'directory')],
 
237
                         delta.kind_changed)
 
238
        self.assertEqual([], delta.added)
 
239
        self.assertEqual([], delta.removed)
 
240
        self.assertEqual([], delta.renamed)
 
241
        self.assertEqual([], delta.modified)
 
242
        self.assertEqual([], delta.unchanged)
 
243
        self.assertTrue(delta.has_changed())
 
244
        self.assertTrue(delta.touches_file_id('file-id'))
 
245
        self.assertEqual('kind changed:\n  filename (file => directory)\n',
 
246
                         self.show_string(delta))
 
247
        other_delta = _mod_delta.TreeDelta()
 
248
        self.assertNotEqual(other_delta, delta)
 
249
        other_delta.kind_changed = [('filename', 'file-id', 'file',
 
250
                                     'symlink')]
 
251
        self.assertNotEqual(other_delta, delta)
 
252
        other_delta.kind_changed = [('filename', 'file-id', 'file',
 
253
                                     'directory')]
 
254
        self.assertEqual(other_delta, delta)
 
255
        self.assertEqualDiff("TreeDelta(added=[], removed=[], renamed=[],"
 
256
            " kind_changed=[(u'filename', 'file-id', 'file', 'directory')],"
 
257
            " modified=[], unchanged=[], unversioned=[])", repr(delta))
 
258
        self.assertEqual('K  filename (file => directory) file-id\n',
 
259
                         self.show_string(delta, show_ids=True,
 
260
                         short_status=True))
 
261
 
 
262
        tree.rename_one('filename', 'dirname')
 
263
        delta = tree.changes_from(tree.basis_tree())
 
264
        self.assertEqual([], delta.kind_changed)
 
265
        # This loses the fact that kind changed, remembering it as a
 
266
        # modification
 
267
        self.assertEqual([('filename', 'dirname', 'file-id', 'directory',
 
268
                           True, False)], delta.renamed)
 
269
        self.assertTrue(delta.has_changed())
 
270
        self.assertTrue(delta.touches_file_id('file-id'))
 
271
 
 
272
 
 
273
class TestDeltaShow(tests.TestCaseWithTransport):
 
274
 
 
275
    def _get_delta(self):
 
276
        # We build the delta from a real tree to avoid depending on internal
 
277
        # implementation details.
 
278
        wt = self.make_branch_and_tree('branch')
 
279
        self.build_tree_contents([('branch/f1', '1\n'),
 
280
                                  ('branch/f2', '2\n'),
 
281
                                  ('branch/f3', '3\n'),
 
282
                                  ('branch/f4', '4\n'),
 
283
                                  ('branch/dir/',),
 
284
                                 ])
 
285
        wt.add(['f1', 'f2', 'f3', 'f4', 'dir'],
 
286
               ['f1-id', 'f2-id', 'f3-id', 'f4-id', 'dir-id'])
 
287
        wt.commit('commit one', rev_id='1')
 
288
 
 
289
        long_status = """added:
 
290
  dir/
 
291
  f1
 
292
  f2
 
293
  f3
 
294
  f4
 
295
"""
 
296
        short_status = """A  dir/
 
297
A  f1
 
298
A  f2
 
299
A  f3
 
300
A  f4
 
301
"""
 
302
 
 
303
        repo = wt.branch.repository
 
304
        d = wt.changes_from(repo.revision_tree(_mod_revision.NULL_REVISION))
 
305
        return d, long_status, short_status
 
306
 
 
307
    def test_delta_show_short_status_no_filter(self):
 
308
        d, long_status, short_status = self._get_delta()
 
309
        out = StringIO()
 
310
        d.show(out, short_status=True)
 
311
        self.assertEquals(short_status, out.getvalue())
 
312
 
 
313
    def test_delta_show_long_status_no_filter(self):
 
314
        d, long_status, short_status = self._get_delta()
 
315
        out = StringIO()
 
316
        d.show(out, short_status=False)
 
317
        self.assertEquals(long_status, out.getvalue())
 
318
 
 
319
    def test_delta_show_no_filter(self):
 
320
        d, long_status, short_status = self._get_delta()
 
321
        out = StringIO()
 
322
        def not_a_filter(path, file_id):
 
323
            return True
 
324
        d.show(out, short_status=True, filter=not_a_filter)
 
325
        self.assertEquals(short_status, out.getvalue())
 
326
 
 
327
    def test_delta_show_short_status_single_file_filter(self):
 
328
        d, long_status, short_status = self._get_delta()
 
329
        out = StringIO()
 
330
        def only_f2(path, file_id):
 
331
            return path == 'f2'
 
332
        d.show(out, short_status=True, filter=only_f2)
 
333
        self.assertEquals("A  f2\n", out.getvalue())
 
334
 
 
335
    def test_delta_show_long_status_single_file_filter(self):
 
336
        d, long_status, short_status = self._get_delta()
 
337
        out = StringIO()
 
338
        def only_f2(path, file_id):
 
339
            return path == 'f2'
 
340
        d.show(out, short_status=False, filter=only_f2)
 
341
        self.assertEquals("added:\n  f2\n", out.getvalue())
 
342
 
 
343
    def test_delta_show_short_status_single_file_id_filter(self):
 
344
        d, long_status, short_status = self._get_delta()
 
345
        out = StringIO()
 
346
        def only_f2_id(path, file_id):
 
347
            return file_id == 'f2-id'
 
348
        d.show(out, short_status=True, filter=only_f2_id)
 
349
        self.assertEquals("A  f2\n", out.getvalue())
 
350