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Viewing changes to breezy/tests/blackbox/test_diff.py

  • Committer: Jelmer Vernooij
  • Date: 2020-04-05 19:11:34 UTC
  • mto: (7490.7.16 work)
  • mto: This revision was merged to the branch mainline in revision 7501.
  • Revision ID: jelmer@jelmer.uk-20200405191134-0aebh8ikiwygxma5
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breezy/tests/blackbox/test_diff.py
1
 
# Copyright (C) 2006-2010 Canonical Ltd
 
1
# Copyright (C) 2006-2012, 2016 Canonical Ltd
2
2
#
3
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
15
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
16
 
17
17
 
18
 
"""Black-box tests for bzr diff.
19
 
"""
 
18
"""Black-box tests for brz diff."""
20
19
 
21
20
import os
22
21
import re
23
22
 
24
 
from bzrlib import (
 
23
from breezy import (
25
24
    tests,
26
25
    workingtree,
27
26
    )
28
 
from bzrlib.diff import (
 
27
from breezy.diff import (
29
28
    DiffTree,
30
29
    format_registry as diff_format_registry,
31
30
    )
 
31
from breezy.tests import (
 
32
    features,
 
33
    )
32
34
 
33
35
 
34
36
def subst_dates(string):
43
45
    def make_example_branch(self):
44
46
        tree = self.make_branch_and_tree('.')
45
47
        self.build_tree_contents([
46
 
            ('hello', 'foo\n'),
47
 
            ('goodbye', 'baz\n')])
 
48
            ('hello', b'foo\n'),
 
49
            ('goodbye', b'baz\n')])
48
50
        tree.add(['hello'])
49
51
        tree.commit('setup')
50
52
        tree.add(['goodbye'])
56
58
 
57
59
    def test_diff(self):
58
60
        tree = self.make_example_branch()
59
 
        self.build_tree_contents([('hello', 'hello world!')])
 
61
        self.build_tree_contents([('hello', b'hello world!')])
60
62
        tree.commit(message='fixing hello')
61
63
        output = self.run_bzr('diff -r 2..3', retcode=1)[0]
62
 
        self.assert_('\n+hello world!' in output)
 
64
        self.assertTrue('\n+hello world!' in output)
63
65
        output = self.run_bzr('diff -c 3', retcode=1)[0]
64
 
        self.assert_('\n+hello world!' in output)
 
66
        self.assertTrue('\n+hello world!' in output)
65
67
        output = self.run_bzr('diff -r last:3..last:1', retcode=1)[0]
66
 
        self.assert_('\n+baz' in output)
 
68
        self.assertTrue('\n+baz' in output)
67
69
        output = self.run_bzr('diff -c last:2', retcode=1)[0]
68
 
        self.assert_('\n+baz' in output)
 
70
        self.assertTrue('\n+baz' in output)
69
71
        self.build_tree(['moo'])
70
72
        tree.add('moo')
71
73
        os.unlink('moo')
74
76
    def test_diff_prefix(self):
75
77
        """diff --prefix appends to filenames in output"""
76
78
        self.make_example_branch()
77
 
        self.build_tree_contents([('hello', 'hello world!\n')])
 
79
        self.build_tree_contents([('hello', b'hello world!\n')])
78
80
        out, err = self.run_bzr('diff --prefix old/:new/', retcode=1)
79
 
        self.assertEquals(err, '')
 
81
        self.assertEqual(err, '')
80
82
        self.assertEqualDiff(subst_dates(out), '''\
81
83
=== modified file 'hello'
82
84
--- old/hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
91
93
        # There was an error in error reporting for this option
92
94
        out, err = self.run_bzr('diff --prefix old/', retcode=3)
93
95
        self.assertContainsRe(err,
94
 
            '--prefix expects two values separated by a colon')
 
96
                              '--prefix expects two values separated by a colon')
95
97
 
96
98
    def test_diff_p1(self):
97
99
        """diff -p1 produces lkml-style diffs"""
98
100
        self.make_example_branch()
99
 
        self.build_tree_contents([('hello', 'hello world!\n')])
 
101
        self.build_tree_contents([('hello', b'hello world!\n')])
100
102
        out, err = self.run_bzr('diff -p1', retcode=1)
101
 
        self.assertEquals(err, '')
 
103
        self.assertEqual(err, '')
102
104
        self.assertEqualDiff(subst_dates(out), '''\
103
105
=== modified file 'hello'
104
106
--- old/hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
112
114
    def test_diff_p0(self):
113
115
        """diff -p0 produces diffs with no prefix"""
114
116
        self.make_example_branch()
115
 
        self.build_tree_contents([('hello', 'hello world!\n')])
 
117
        self.build_tree_contents([('hello', b'hello world!\n')])
116
118
        out, err = self.run_bzr('diff -p0', retcode=1)
117
 
        self.assertEquals(err, '')
 
119
        self.assertEqual(err, '')
118
120
        self.assertEqualDiff(subst_dates(out), '''\
119
121
=== modified file 'hello'
120
122
--- hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
130
132
        # (Malone #3619)
131
133
        self.make_example_branch()
132
134
        out, err = self.run_bzr('diff does-not-exist', retcode=3,
133
 
            error_regexes=('not versioned.*does-not-exist',))
 
135
                                error_regexes=('not versioned.*does-not-exist',))
134
136
 
135
137
    def test_diff_illegal_revision_specifiers(self):
136
138
        out, err = self.run_bzr('diff -r 1..23..123', retcode=3,
137
 
            error_regexes=('one or two revision specifiers',))
 
139
                                error_regexes=('one or two revision specifiers',))
138
140
 
139
141
    def test_diff_using_and_format(self):
140
142
        out, err = self.run_bzr('diff --format=default --using=mydi', retcode=3,
141
 
            error_regexes=('are mutually exclusive',))
 
143
                                error_regexes=('are mutually exclusive',))
142
144
 
143
145
    def test_diff_nonexistent_revision(self):
144
146
        out, err = self.run_bzr('diff -r 123', retcode=3,
145
 
            error_regexes=("Requested revision: '123' does not "
146
 
                "exist in branch:",))
 
147
                                error_regexes=("Requested revision: '123' does not "
 
148
                                               "exist in branch:",))
147
149
 
148
150
    def test_diff_nonexistent_dotted_revision(self):
149
151
        out, err = self.run_bzr('diff -r 1.1', retcode=3)
150
152
        self.assertContainsRe(err,
151
 
            "Requested revision: '1.1' does not exist in branch:")
 
153
                              "Requested revision: '1.1' does not exist in branch:")
152
154
 
153
155
    def test_diff_nonexistent_dotted_revision_change(self):
154
156
        out, err = self.run_bzr('diff -c 1.1', retcode=3)
155
157
        self.assertContainsRe(err,
156
 
            "Requested revision: '1.1' does not exist in branch:")
 
158
                              "Requested revision: '1.1' does not exist in branch:")
157
159
 
158
160
    def test_diff_unversioned(self):
159
161
        # Get an error when diffing a non-versioned file.
172
174
        branch1_tree.add('file')
173
175
        branch1_tree.add('file2')
174
176
        branch1_tree.commit(message='add file and file2')
175
 
        branch2_tree = branch1_tree.bzrdir.sprout('branch2').open_workingtree()
176
 
        self.build_tree_contents([('branch2/file', 'new content\n')])
 
177
        branch2_tree = branch1_tree.controldir.sprout(
 
178
            'branch2').open_workingtree()
 
179
        self.build_tree_contents([('branch2/file', b'new content\n')])
177
180
        branch2_tree.commit(message='update file')
178
181
        return branch1_tree, branch2_tree
179
182
 
180
183
    def check_b2_vs_b1(self, cmd):
181
184
        # Compare branch2 vs branch1 using cmd and check the result
182
185
        out, err = self.run_bzr(cmd, retcode=1)
183
 
        self.assertEquals('', err)
184
 
        self.assertEquals("=== modified file 'file'\n"
185
 
                          "--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
186
 
                          "+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
187
 
                          "@@ -1,1 +1,1 @@\n"
188
 
                          "-new content\n"
189
 
                          "+contents of branch1/file\n"
190
 
                          "\n", subst_dates(out))
 
186
        self.assertEqual('', err)
 
187
        self.assertEqual("=== modified file 'file'\n"
 
188
                         "--- old/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
 
189
                         "+++ new/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
 
190
                         "@@ -1,1 +1,1 @@\n"
 
191
                         "-new content\n"
 
192
                         "+contents of branch1/file\n"
 
193
                         "\n", subst_dates(out))
191
194
 
192
195
    def check_b1_vs_b2(self, cmd):
193
196
        # Compare branch1 vs branch2 using cmd and check the result
194
197
        out, err = self.run_bzr(cmd, retcode=1)
195
 
        self.assertEquals('', err)
 
198
        self.assertEqual('', err)
196
199
        self.assertEqualDiff("=== modified file 'file'\n"
197
 
                              "--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
198
 
                              "+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
199
 
                              "@@ -1,1 +1,1 @@\n"
200
 
                              "-contents of branch1/file\n"
201
 
                              "+new content\n"
202
 
                              "\n", subst_dates(out))
 
200
                             "--- old/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
 
201
                             "+++ new/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
 
202
                             "@@ -1,1 +1,1 @@\n"
 
203
                             "-contents of branch1/file\n"
 
204
                             "+new content\n"
 
205
                             "\n", subst_dates(out))
203
206
 
204
207
    def check_no_diffs(self, cmd):
205
208
        # Check that running cmd returns an empty diff
206
209
        out, err = self.run_bzr(cmd, retcode=0)
207
 
        self.assertEquals('', err)
208
 
        self.assertEquals('', out)
 
210
        self.assertEqual('', err)
 
211
        self.assertEqual('', out)
209
212
 
210
213
    def test_diff_branches(self):
211
214
        self.example_branches()
227
230
    def test_diff_branches_no_working_trees(self):
228
231
        branch1_tree, branch2_tree = self.example_branches()
229
232
        # Compare a working tree to a branch without a WT
230
 
        dir1 = branch1_tree.bzrdir
 
233
        dir1 = branch1_tree.controldir
231
234
        dir1.destroy_workingtree()
232
235
        self.assertFalse(dir1.has_workingtree())
233
236
        self.check_b2_vs_b1('diff --old branch2 --new branch1')
238
241
        self.check_b1_vs_b2('diff --old branch1 branch2')
239
242
        self.check_b1_vs_b2('diff branch1 --new branch2')
240
243
        # Compare a branch with a WT against another without a WT
241
 
        dir2 = branch2_tree.bzrdir
 
244
        dir2 = branch2_tree.controldir
242
245
        dir2.destroy_workingtree()
243
246
        self.assertFalse(dir2.has_workingtree())
244
247
        self.check_b1_vs_b2('diff --old branch1 --new branch2')
248
251
    def test_diff_revno_branches(self):
249
252
        self.example_branches()
250
253
        branch2_tree = workingtree.WorkingTree.open_containing('branch2')[0]
251
 
        self.build_tree_contents([('branch2/file', 'even newer content')])
 
254
        self.build_tree_contents([('branch2/file', b'even newer content')])
252
255
        branch2_tree.commit(message='update file once more')
253
256
 
254
257
        out, err = self.run_bzr('diff -r revno:1:branch2..revno:1:branch1',
255
258
                                )
256
 
        self.assertEquals('', err)
257
 
        self.assertEquals('', out)
 
259
        self.assertEqual('', err)
 
260
        self.assertEqual('', out)
258
261
        out, err = self.run_bzr('diff -r revno:2:branch2..revno:1:branch1',
259
262
                                retcode=1)
260
 
        self.assertEquals('', err)
 
263
        self.assertEqual('', err)
261
264
        self.assertEqualDiff("=== modified file 'file'\n"
262
 
                              "--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
263
 
                              "+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
264
 
                              "@@ -1,1 +1,1 @@\n"
265
 
                              "-new content\n"
266
 
                              "+contents of branch1/file\n"
267
 
                              "\n", subst_dates(out))
 
265
                             "--- old/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
 
266
                             "+++ new/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
 
267
                             "@@ -1,1 +1,1 @@\n"
 
268
                             "-new content\n"
 
269
                             "+contents of branch1/file\n"
 
270
                             "\n", subst_dates(out))
 
271
 
 
272
    def test_diff_color_always(self):
 
273
        from ...terminal import colorstring
 
274
        from ... import colordiff
 
275
        self.overrideAttr(colordiff, 'GLOBAL_COLORDIFFRC', None)
 
276
        self.example_branches()
 
277
        branch2_tree = workingtree.WorkingTree.open_containing('branch2')[0]
 
278
        self.build_tree_contents([('branch2/file', b'even newer content')])
 
279
        branch2_tree.commit(message='update file once more')
 
280
 
 
281
        out, err = self.run_bzr('diff --color=always -r revno:2:branch2..revno:1:branch1',
 
282
                                retcode=1)
 
283
        self.assertEqual('', err)
 
284
        self.assertEqualDiff((
 
285
            colorstring(b"=== modified file 'file'\n", 'darkyellow') +
 
286
            colorstring(b"--- old/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n", 'darkred') +
 
287
            colorstring(b"+++ new/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n", 'darkblue') +
 
288
            colorstring(b"@@ -1 +1 @@\n", 'darkgreen') +
 
289
            colorstring(b"-new content\n", 'darkred') +
 
290
            colorstring(b"+contents of branch1/file\n", 'darkblue') +
 
291
            colorstring(b"\n", 'darkwhite')).decode(),
 
292
            subst_dates(out))
268
293
 
269
294
    def example_branch2(self):
270
295
        branch1_tree = self.make_branch_and_tree('branch1')
271
 
        self.build_tree_contents([('branch1/file1', 'original line\n')])
 
296
        self.build_tree_contents([('branch1/file1', b'original line\n')])
272
297
        branch1_tree.add('file1')
273
298
        branch1_tree.commit(message='first commit')
274
 
        self.build_tree_contents([('branch1/file1', 'repo line\n')])
 
299
        self.build_tree_contents([('branch1/file1', b'repo line\n')])
275
300
        branch1_tree.commit(message='second commit')
276
301
        return branch1_tree
277
302
 
278
303
    def test_diff_to_working_tree(self):
279
304
        self.example_branch2()
280
 
        self.build_tree_contents([('branch1/file1', 'new line')])
 
305
        self.build_tree_contents([('branch1/file1', b'new line')])
281
306
        output = self.run_bzr('diff -r 1.. branch1', retcode=1)
282
307
        self.assertContainsRe(output[0], '\n\\-original line\n\\+new line\n')
283
308
 
284
309
    def test_diff_to_working_tree_in_subdir(self):
285
310
        self.example_branch2()
286
 
        self.build_tree_contents([('branch1/file1', 'new line')])
 
311
        self.build_tree_contents([('branch1/file1', b'new line')])
287
312
        os.mkdir('branch1/dir1')
288
 
        os.chdir('branch1/dir1')
289
 
        output = self.run_bzr('diff -r 1..', retcode=1)
 
313
        output = self.run_bzr('diff -r 1..', retcode=1,
 
314
                              working_dir='branch1/dir1')
290
315
        self.assertContainsRe(output[0], '\n\\-original line\n\\+new line\n')
291
316
 
292
317
    def test_diff_across_rename(self):
299
324
 
300
325
    def test_diff_to_branch_no_working_tree(self):
301
326
        branch1_tree = self.example_branch2()
302
 
        dir1 = branch1_tree.bzrdir
 
327
        dir1 = branch1_tree.controldir
303
328
        dir1.destroy_workingtree()
304
329
        self.assertFalse(dir1.has_workingtree())
305
330
        output = self.run_bzr('diff -r 1.. branch1', retcode=1)
311
336
            def show_diff(self, specific_files, extra_trees=None):
312
337
                self.to_file.write("BOO!\n")
313
338
                return super(BooDiffTree, self).show_diff(specific_files,
314
 
                    extra_trees)
 
339
                                                          extra_trees)
315
340
 
316
 
        diff_format_registry.register("boo", BooDiffTree, 
317
 
            "Scary diff format")
 
341
        diff_format_registry.register("boo", BooDiffTree, "Scary diff format")
318
342
        self.addCleanup(diff_format_registry.remove, "boo")
319
343
        self.make_example_branch()
320
 
        self.build_tree_contents([('hello', 'hello world!\n')])
 
344
        self.build_tree_contents([('hello', b'hello world!\n')])
321
345
        output = self.run_bzr('diff --format=boo', retcode=1)
322
346
        self.assertTrue("BOO!" in output[0])
 
347
        output = self.run_bzr('diff -Fboo', retcode=1)
 
348
        self.assertTrue("BOO!" in output[0])
 
349
 
 
350
    def test_binary_diff_remove(self):
 
351
        tree = self.make_branch_and_tree('.')
 
352
        self.build_tree_contents([('a', b'\x00' * 20)])
 
353
        tree.add(['a'])
 
354
        tree.commit('add binary file')
 
355
        os.unlink('a')
 
356
        output = self.run_bzr('diff', retcode=1)
 
357
        self.assertEqual(
 
358
            "=== removed file 'a'\nBinary files old/a and new/a differ\n",
 
359
            output[0])
323
360
 
324
361
 
325
362
class TestCheckoutDiff(TestDiff):
338
375
        return tree
339
376
 
340
377
    def example_branches(self):
341
 
        branch1_tree, branch2_tree = super(TestCheckoutDiff, self).example_branches()
 
378
        branch1_tree, branch2_tree = super(TestCheckoutDiff,
 
379
                                           self).example_branches()
342
380
        os.mkdir('checkouts')
343
381
        branch1_tree = branch1_tree.branch.create_checkout('checkouts/branch1')
344
382
        branch2_tree = branch2_tree.branch.create_checkout('checkouts/branch2')
356
394
 
357
395
    def test_diff_label_added(self):
358
396
        tree = super(TestDiffLabels, self).make_example_branch()
359
 
        self.build_tree_contents([('barbar', 'barbar')])
 
397
        self.build_tree_contents([('barbar', b'barbar')])
360
398
        tree.add('barbar')
361
399
        diff = self.run_bzr('diff', retcode=1)
362
400
        self.assertTrue("=== added file 'barbar'" in diff[0])
363
401
 
364
402
    def test_diff_label_modified(self):
365
403
        super(TestDiffLabels, self).make_example_branch()
366
 
        self.build_tree_contents([('hello', 'barbar')])
 
404
        self.build_tree_contents([('hello', b'barbar')])
367
405
        diff = self.run_bzr('diff', retcode=1)
368
406
        self.assertTrue("=== modified file 'hello'" in diff[0])
369
407
 
384
422
        # subprocess.py that we had to workaround).
385
423
        # However, if 'diff' may not be available
386
424
        self.make_example_branch()
387
 
        # this will be automatically restored by the base bzr test class
388
 
        os.environ['BZR_PROGRESS_BAR'] = 'none'
389
 
        out, err = self.run_bzr_subprocess('diff -r 1 --diff-options -ub',
390
 
                                           universal_newlines=True,
391
 
                                           retcode=None)
392
 
        if 'Diff is not installed on this machine' in err:
 
425
        out, err = self.run_bzr_subprocess(
 
426
            'diff -Oprogress_bar=none -r 1 --diff-options -ub',
 
427
            universal_newlines=True,
 
428
            retcode=None)
 
429
        if b'Diff is not installed on this machine' in err:
393
430
            raise tests.TestSkipped("No external 'diff' is available")
394
 
        self.assertEqual('', err)
 
431
        self.assertEqual(b'', err)
395
432
        # We have to skip the stuff in the middle, because it depends
396
433
        # on time.time()
397
 
        self.assertStartsWith(out, "=== added file 'goodbye'\n"
398
 
                                   "--- goodbye\t1970-01-01 00:00:00 +0000\n"
399
 
                                   "+++ goodbye\t")
400
 
        self.assertEndsWith(out, "\n@@ -0,0 +1 @@\n"
401
 
                                 "+baz\n\n")
 
434
        self.assertStartsWith(
 
435
            out,
 
436
            b"=== added file 'goodbye'\n"
 
437
            b"--- old/goodbye\t1970-01-01 00:00:00 +0000\n"
 
438
            b"+++ new/goodbye\t")
 
439
        self.assertEndsWith(out, b"\n@@ -0,0 +1 @@\n"
 
440
                                 b"+baz\n\n")
 
441
 
 
442
    def test_external_diff_options_and_using(self):
 
443
        """Test that the options are passed correctly to an external diff process"""
 
444
        self.requireFeature(features.diff_feature)
 
445
        self.make_example_branch()
 
446
        self.build_tree_contents([('hello', b'Foo\n')])
 
447
        out, err = self.run_bzr('diff --diff-options -i --using diff',
 
448
                                retcode=1)
 
449
        self.assertEqual("=== modified file 'hello'\n", out)
 
450
        self.assertEqual('', err)
402
451
 
403
452
 
404
453
class TestDiffOutput(DiffBase):
406
455
    def test_diff_output(self):
407
456
        # check that output doesn't mangle line-endings
408
457
        self.make_example_branch()
409
 
        self.build_tree_contents([('hello', 'hello world!\n')])
 
458
        self.build_tree_contents([('hello', b'hello world!\n')])
410
459
        output = self.run_bzr_subprocess('diff', retcode=1)[0]
411
 
        self.assert_('\n+hello world!\n' in output)
 
460
        self.assertTrue(b'\n+hello world!\n' in output)