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Viewing changes to breezy/tests/test_delta.py

  • Committer: Jelmer Vernooij
  • Date: 2020-05-24 00:39:50 UTC
  • mto: This revision was merged to the branch mainline in revision 7504.
  • Revision ID: jelmer@jelmer.uk-20200524003950-bbc545r76vc5yajg
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breezy/tests/test_delta.py
 
1
# Copyright (C) 2007-2010, 2016 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
from io import StringIO
 
18
import os
 
19
 
 
20
from .. import (
 
21
    delta as _mod_delta,
 
22
    revision as _mod_revision,
 
23
    tests,
 
24
    )
 
25
from ..tree import TreeChange
 
26
 
 
27
 
 
28
class InstrumentedReporter(object):
 
29
    def __init__(self):
 
30
        self.calls = []
 
31
 
 
32
    def report(self, path, versioned, renamed, copied, modified, exe_change,
 
33
               kind):
 
34
        self.calls.append(
 
35
            (path, versioned, renamed, copied, modified, exe_change, kind))
 
36
 
 
37
 
 
38
class TestReportChanges(tests.TestCase):
 
39
    """Test the new change reporting infrastructure"""
 
40
 
 
41
    def assertReport(self, expected, file_id=b'fid', path='path',
 
42
                     versioned_change='unchanged', renamed=False,
 
43
                     copied=False, modified='unchanged', exe_change=False,
 
44
                     kind=('file', 'file'), old_path=None,
 
45
                     unversioned_filter=None, view_info=None):
 
46
        if expected is None:
 
47
            expected_lines = None
 
48
        else:
 
49
            expected_lines = [expected]
 
50
        self.assertReportLines(expected_lines, file_id, path,
 
51
                               versioned_change, renamed,
 
52
                               copied, modified, exe_change,
 
53
                               kind, old_path,
 
54
                               unversioned_filter, view_info)
 
55
 
 
56
    def assertReportLines(self, expected_lines, file_id=b'fid', path='path',
 
57
                          versioned_change='unchanged', renamed=False, copied=False,
 
58
                          modified='unchanged', exe_change=False,
 
59
                          kind=('file', 'file'), old_path=None,
 
60
                          unversioned_filter=None, view_info=None):
 
61
        result = []
 
62
 
 
63
        def result_line(format, *args):
 
64
            result.append(format % args)
 
65
        reporter = _mod_delta._ChangeReporter(
 
66
            result_line, unversioned_filter=unversioned_filter,
 
67
            view_info=view_info)
 
68
        reporter.report((old_path, path), versioned_change, renamed, copied,
 
69
                        modified, exe_change, kind)
 
70
        if expected_lines is not None:
 
71
            self.assertEqualDiff('\n'.join(expected_lines), '\n'.join(result))
 
72
        else:
 
73
            self.assertEqual([], result)
 
74
 
 
75
    def test_rename(self):
 
76
        self.assertReport('R   old => path', renamed=True, old_path='old')
 
77
        self.assertReport('    path')
 
78
        self.assertReport('RN  old => path', renamed=True, old_path='old',
 
79
                          modified='created', kind=(None, 'file'))
 
80
 
 
81
    def test_kind(self):
 
82
        self.assertReport(' K  path => path/', modified='kind changed',
 
83
                          kind=('file', 'directory'), old_path='path')
 
84
        self.assertReport(' K  path/ => path', modified='kind changed',
 
85
                          kind=('directory', 'file'), old_path='old')
 
86
        self.assertReport('RK  old => path/', renamed=True,
 
87
                          modified='kind changed',
 
88
                          kind=('file', 'directory'), old_path='old')
 
89
 
 
90
    def test_new(self):
 
91
        self.assertReport(' N  path/', modified='created',
 
92
                          kind=(None, 'directory'))
 
93
        self.assertReport('+   path/', versioned_change='added',
 
94
                          modified='unchanged', kind=(None, 'directory'))
 
95
        self.assertReport('+   path', versioned_change='added',
 
96
                          modified='unchanged', kind=(None, None))
 
97
        self.assertReport('+N  path/', versioned_change='added',
 
98
                          modified='created', kind=(None, 'directory'))
 
99
        self.assertReport('+M  path/', versioned_change='added',
 
100
                          modified='modified', kind=(None, 'directory'))
 
101
 
 
102
    def test_removal(self):
 
103
        self.assertReport(' D  path/', modified='deleted',
 
104
                          kind=('directory', None), old_path='old')
 
105
        self.assertReport('-   path/', versioned_change='removed',
 
106
                          old_path='path',
 
107
                          kind=(None, 'directory'))
 
108
        self.assertReport('-D  path', versioned_change='removed',
 
109
                          old_path='path',
 
110
                          modified='deleted', kind=('file', 'directory'))
 
111
 
 
112
    def test_modification(self):
 
113
        self.assertReport(' M  path', modified='modified')
 
114
        self.assertReport(' M* path', modified='modified', exe_change=True)
 
115
 
 
116
    def test_unversioned(self):
 
117
        # by default any unversioned file is output
 
118
        self.assertReport('?   subdir/foo~', file_id=None, path='subdir/foo~',
 
119
                          old_path=None, versioned_change='unversioned',
 
120
                          renamed=False, modified='created', exe_change=False,
 
121
                          kind=(None, 'file'))
 
122
        # but we can choose to filter these. Probably that should be done
 
123
        # close to the tree, but this is a reasonable starting point.
 
124
        self.assertReport(None, file_id=None, path='subdir/foo~',
 
125
                          old_path=None, versioned_change='unversioned',
 
126
                          renamed=False, modified='created', exe_change=False,
 
127
                          kind=(None, 'file'), unversioned_filter=lambda x: True)
 
128
 
 
129
    def test_missing(self):
 
130
        self.assertReport('+!  missing.c', file_id=None, path='missing.c',
 
131
                          old_path=None, versioned_change='added',
 
132
                          renamed=False, modified='missing', exe_change=False,
 
133
                          kind=(None, None))
 
134
 
 
135
    def test_view_filtering(self):
 
136
        # If a file in within the view, it should appear in the output
 
137
        expected_lines = [
 
138
            "Operating on whole tree but only reporting on 'my' view.",
 
139
            " M  path"]
 
140
        self.assertReportLines(expected_lines, modified='modified',
 
141
                               view_info=('my', ['path']))
 
142
        # If a file in outside the view, it should not appear in the output
 
143
        expected_lines = [
 
144
            "Operating on whole tree but only reporting on 'my' view."]
 
145
        self.assertReportLines(expected_lines, modified='modified',
 
146
                               path="foo", view_info=('my', ['path']))
 
147
 
 
148
    def assertChangesEqual(self,
 
149
                           file_id=b'fid',
 
150
                           paths=('path', 'path'),
 
151
                           content_change=False,
 
152
                           versioned=(True, True),
 
153
                           parent_id=('pid', 'pid'),
 
154
                           name=('name', 'name'),
 
155
                           kind=('file', 'file'),
 
156
                           executable=(False, False),
 
157
                           versioned_change='unchanged',
 
158
                           renamed=False,
 
159
                           copied=False,
 
160
                           modified='unchanged',
 
161
                           exe_change=False):
 
162
        reporter = InstrumentedReporter()
 
163
        _mod_delta.report_changes([
 
164
            TreeChange(
 
165
                file_id, paths, content_change, versioned, parent_id,
 
166
                name, kind, executable, copied)], reporter)
 
167
        output = reporter.calls[0]
 
168
        self.assertEqual(paths, output[0])
 
169
        self.assertEqual(versioned_change, output[1])
 
170
        self.assertEqual(renamed, output[2])
 
171
        self.assertEqual(copied, output[3])
 
172
        self.assertEqual(modified, output[4])
 
173
        self.assertEqual(exe_change, output[5])
 
174
        self.assertEqual(kind, output[6])
 
175
 
 
176
    def test_report_changes(self):
 
177
        """Test change detection of report_changes"""
 
178
        # Ensure no changes are detected by default
 
179
        self.assertChangesEqual(modified='unchanged', renamed=False,
 
180
                                versioned_change='unchanged',
 
181
                                exe_change=False)
 
182
        self.assertChangesEqual(modified='kind changed',
 
183
                                kind=('file', 'directory'))
 
184
        self.assertChangesEqual(modified='created', kind=(None, 'directory'))
 
185
        self.assertChangesEqual(modified='deleted', kind=('directory', None))
 
186
        self.assertChangesEqual(content_change=True, modified='modified')
 
187
        self.assertChangesEqual(renamed=True, name=('old', 'new'))
 
188
        self.assertChangesEqual(renamed=True,
 
189
                                parent_id=('old-parent', 'new-parent'))
 
190
        self.assertChangesEqual(versioned_change='added',
 
191
                                versioned=(False, True))
 
192
        self.assertChangesEqual(versioned_change='removed',
 
193
                                versioned=(True, False))
 
194
        # execute bit is only detected as "changed" if the file is and was
 
195
        # a regular file.
 
196
        self.assertChangesEqual(exe_change=True, executable=(True, False))
 
197
        self.assertChangesEqual(exe_change=False, executable=(True, False),
 
198
                                kind=('directory', 'directory'))
 
199
        self.assertChangesEqual(exe_change=False, modified='kind changed',
 
200
                                executable=(False, True),
 
201
                                kind=('directory', 'file'))
 
202
        self.assertChangesEqual(parent_id=('pid', None))
 
203
 
 
204
        # Now make sure they all work together
 
205
        self.assertChangesEqual(versioned_change='removed',
 
206
                                modified='deleted', versioned=(True, False),
 
207
                                kind=('directory', None))
 
208
        self.assertChangesEqual(versioned_change='removed',
 
209
                                modified='created', versioned=(True, False),
 
210
                                kind=(None, 'file'))
 
211
        self.assertChangesEqual(versioned_change='removed',
 
212
                                modified='modified', renamed=True,
 
213
                                exe_change=True, versioned=(True, False),
 
214
                                content_change=True, name=('old', 'new'),
 
215
                                executable=(False, True))
 
216
 
 
217
    def test_report_unversioned(self):
 
218
        """Unversioned entries are reported well."""
 
219
        self.assertChangesEqual(file_id=None, paths=(None, 'full/path'),
 
220
                                content_change=True,
 
221
                                versioned=(False, False),
 
222
                                parent_id=(None, None),
 
223
                                name=(None, 'path'),
 
224
                                kind=(None, 'file'),
 
225
                                executable=(None, False),
 
226
                                versioned_change='unversioned',
 
227
                                renamed=False,
 
228
                                modified='created',
 
229
                                exe_change=False)
 
230
 
 
231
 
 
232
class TestChangesFrom(tests.TestCaseWithTransport):
 
233
 
 
234
    def show_string(self, delta, *args, **kwargs):
 
235
        to_file = StringIO()
 
236
        _mod_delta.report_delta(to_file, delta, *args, **kwargs)
 
237
        return to_file.getvalue()
 
238
 
 
239
    def test_kind_change(self):
 
240
        """Doing a status when a file has changed kind should work"""
 
241
        tree = self.make_branch_and_tree('.')
 
242
        self.build_tree(['filename'])
 
243
        tree.add('filename', b'file-id')
 
244
        tree.commit('added filename')
 
245
        os.unlink('filename')
 
246
        self.build_tree(['filename/'])
 
247
        delta = tree.changes_from(tree.basis_tree())
 
248
        self.assertEqual([('filename', 'file', 'directory')],
 
249
                         [(c.path[1], c.kind[0], c.kind[1]) for c in delta.kind_changed])
 
250
        self.assertEqual([], delta.added)
 
251
        self.assertEqual([], delta.removed)
 
252
        self.assertEqual([], delta.renamed)
 
253
        self.assertEqual([], delta.modified)
 
254
        self.assertEqual([], delta.unchanged)
 
255
        self.assertTrue(delta.has_changed())
 
256
        self.assertEqual('kind changed:\n  filename (file => directory)\n',
 
257
                         self.show_string(delta))
 
258
        other_delta = _mod_delta.TreeDelta()
 
259
        self.assertNotEqual(other_delta, delta)
 
260
        other_delta.kind_changed = [
 
261
            TreeChange(
 
262
                b'file-id',
 
263
                ('filename', 'filename'), True, (True, True),
 
264
                (tree.path2id(''), tree.path2id('')),
 
265
                ('filename', 'filename'),
 
266
                ('file', 'symlink'), (False, False))]
 
267
        self.assertNotEqual(other_delta, delta)
 
268
        other_delta.kind_changed = [
 
269
            TreeChange(
 
270
                b'file-id',
 
271
                ('filename', 'filename'), True, (True, True),
 
272
                (tree.path2id(''), tree.path2id('')), ('filename', 'filename'),
 
273
                ('file', 'directory'), (False, False))]
 
274
        self.assertEqual(other_delta, delta)
 
275
        self.assertEqual('K  filename (file => directory) file-id\n',
 
276
                         self.show_string(delta, show_ids=True,
 
277
                                          short_status=True))
 
278
 
 
279
        tree.rename_one('filename', 'dirname')
 
280
        delta = tree.changes_from(tree.basis_tree())
 
281
        self.assertEqual([], delta.kind_changed)
 
282
        # This loses the fact that kind changed, remembering it as a
 
283
        # modification
 
284
        self.assertEqual([TreeChange(
 
285
            b'file-id', ('filename', 'dirname'), True,
 
286
            (True, True), (tree.path2id(''), tree.path2id('')),
 
287
            ('filename', 'dirname'), ('file', 'directory'), (False, False))],
 
288
            delta.renamed)
 
289
        self.assertTrue(delta.has_changed())
 
290
 
 
291
 
 
292
class TestDeltaShow(tests.TestCaseWithTransport):
 
293
 
 
294
    def _get_delta(self):
 
295
        # We build the delta from a real tree to avoid depending on internal
 
296
        # implementation details.
 
297
        wt = self.make_branch_and_tree('branch')
 
298
        self.build_tree_contents([('branch/f1', b'1\n'),
 
299
                                  ('branch/f2', b'2\n'),
 
300
                                  ('branch/f3', b'3\n'),
 
301
                                  ('branch/f4', b'4\n'),
 
302
                                  ('branch/f5', b'5\n'),
 
303
                                  ('branch/dir/',),
 
304
                                  ])
 
305
        wt.add(['f1', 'f2', 'f3', 'f4', 'dir'],
 
306
               [b'f1-id', b'f2-id', b'f3-id', b'f4-id', b'dir-id'])
 
307
        wt.commit('commit one', rev_id=b'1')
 
308
 
 
309
        # TODO add rename,removed,etc. here?
 
310
        wt.add('f5')
 
311
        os.unlink('branch/f5')
 
312
 
 
313
        long_status = """added:
 
314
  dir/
 
315
  f1
 
316
  f2
 
317
  f3
 
318
  f4
 
319
missing:
 
320
  f5
 
321
"""
 
322
        short_status = """A  dir/
 
323
A  f1
 
324
A  f2
 
325
A  f3
 
326
A  f4
 
327
!  f5
 
328
"""
 
329
 
 
330
        repo = wt.branch.repository
 
331
        d = wt.changes_from(repo.revision_tree(_mod_revision.NULL_REVISION))
 
332
        return d, long_status, short_status
 
333
 
 
334
    def test_short_status(self):
 
335
        d, long_status, short_status = self._get_delta()
 
336
        out = StringIO()
 
337
        _mod_delta.report_delta(out, d, short_status=True)
 
338
        self.assertEqual(short_status, out.getvalue())
 
339
 
 
340
    def test_long_status(self):
 
341
        d, long_status, short_status = self._get_delta()
 
342
        out = StringIO()
 
343
        _mod_delta.report_delta(out, d, short_status=False)
 
344
        self.assertEqual(long_status, out.getvalue())
 
345
 
 
346
    def test_predicate_always(self):
 
347
        d, long_status, short_status = self._get_delta()
 
348
        out = StringIO()
 
349
 
 
350
        def always(path):
 
351
            return True
 
352
        _mod_delta.report_delta(out, d, short_status=True, predicate=always)
 
353
        self.assertEqual(short_status, out.getvalue())
 
354
 
 
355
    def test_short_status_path_predicate(self):
 
356
        d, long_status, short_status = self._get_delta()
 
357
        out = StringIO()
 
358
 
 
359
        def only_f2(path):
 
360
            return path == 'f2'
 
361
        _mod_delta.report_delta(out, d, short_status=True, predicate=only_f2)
 
362
        self.assertEqual("A  f2\n", out.getvalue())
 
363
 
 
364
    def test_long_status_path_predicate(self):
 
365
        d, long_status, short_status = self._get_delta()
 
366
        out = StringIO()
 
367
 
 
368
        def only_f2(path):
 
369
            return path == 'f2'
 
370
        _mod_delta.report_delta(out, d, short_status=False, predicate=only_f2)
 
371
        self.assertEqual("added:\n  f2\n", out.getvalue())