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  • Committer: Aaron Bentley
  • Date: 2008-11-23 16:38:39 UTC
  • mto: This revision was merged to the branch mainline in revision 3892.
  • Revision ID: aaron@aaronbentley.com-20081123163839-ew27m17130fz85v6
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bzrlib/tests/blackbox/test_diff.py
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# Copyright (C) 2006-2012, 2016 Canonical Ltd
 
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# Copyright (C) 2005, 2006 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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17
 
 
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"""Black-box tests for bzr diff."""
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
16
 
 
17
 
 
18
"""Black-box tests for bzr diff.
 
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"""
19
20
 
20
21
import os
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import re
22
23
 
23
 
from bzrlib import (
24
 
    tests,
25
 
    workingtree,
26
 
    )
27
 
from bzrlib.diff import (
28
 
    DiffTree,
29
 
    format_registry as diff_format_registry,
30
 
    )
31
 
from bzrlib.tests import (
32
 
    features,
33
 
    )
 
24
import bzrlib
 
25
from bzrlib import workingtree
 
26
from bzrlib.branch import Branch
 
27
from bzrlib.tests import TestSkipped
 
28
from bzrlib.tests.blackbox import ExternalBase
34
29
 
35
30
 
36
31
def subst_dates(string):
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                  'YYYY-MM-DD HH:MM:SS +ZZZZ', string)
40
35
 
41
36
 
42
 
class DiffBase(tests.TestCaseWithTransport):
 
37
class DiffBase(ExternalBase):
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    """Base class with common setup method"""
44
39
 
45
40
    def make_example_branch(self):
61
56
        self.build_tree_contents([('hello', 'hello world!')])
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        tree.commit(message='fixing hello')
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58
        output = self.run_bzr('diff -r 2..3', retcode=1)[0]
64
 
        self.assertTrue('\n+hello world!' in output)
 
59
        self.assert_('\n+hello world!' in output)
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60
        output = self.run_bzr('diff -c 3', retcode=1)[0]
66
 
        self.assertTrue('\n+hello world!' in output)
 
61
        self.assert_('\n+hello world!' in output)
67
62
        output = self.run_bzr('diff -r last:3..last:1', retcode=1)[0]
68
 
        self.assertTrue('\n+baz' in output)
 
63
        self.assert_('\n+baz' in output)
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64
        output = self.run_bzr('diff -c last:2', retcode=1)[0]
70
 
        self.assertTrue('\n+baz' in output)
 
65
        self.assert_('\n+baz' in output)
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        self.build_tree(['moo'])
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        tree.add('moo')
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        os.unlink('moo')
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        self.make_example_branch()
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        self.build_tree_contents([('hello', 'hello world!\n')])
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        out, err = self.run_bzr('diff --prefix old/:new/', retcode=1)
81
 
        self.assertEqual(err, '')
 
76
        self.assertEquals(err, '')
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77
        self.assertEqualDiff(subst_dates(out), '''\
83
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=== modified file 'hello'
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--- old/hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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        self.make_example_branch()
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        self.build_tree_contents([('hello', 'hello world!\n')])
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        out, err = self.run_bzr('diff -p1', retcode=1)
103
 
        self.assertEqual(err, '')
 
98
        self.assertEquals(err, '')
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        self.assertEqualDiff(subst_dates(out), '''\
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100
=== modified file 'hello'
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--- old/hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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        self.make_example_branch()
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        self.build_tree_contents([('hello', 'hello world!\n')])
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113
        out, err = self.run_bzr('diff -p0', retcode=1)
119
 
        self.assertEqual(err, '')
 
114
        self.assertEquals(err, '')
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115
        self.assertEqualDiff(subst_dates(out), '''\
121
116
=== modified file 'hello'
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117
--- hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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126
        # Get an error from a file that does not exist at all
132
127
        # (Malone #3619)
133
128
        self.make_example_branch()
134
 
        out, err = self.run_bzr('diff does-not-exist', retcode=3,
135
 
            error_regexes=('not versioned.*does-not-exist',))
 
129
        out, err = self.run_bzr('diff does-not-exist', retcode=3)
 
130
        self.assertContainsRe(err, 'not versioned.*does-not-exist')
136
131
 
137
132
    def test_diff_illegal_revision_specifiers(self):
138
 
        out, err = self.run_bzr('diff -r 1..23..123', retcode=3,
139
 
            error_regexes=('one or two revision specifiers',))
140
 
 
141
 
    def test_diff_using_and_format(self):
142
 
        out, err = self.run_bzr('diff --format=default --using=mydi', retcode=3,
143
 
            error_regexes=('are mutually exclusive',))
144
 
 
145
 
    def test_diff_nonexistent_revision(self):
146
 
        out, err = self.run_bzr('diff -r 123', retcode=3,
147
 
            error_regexes=("Requested revision: '123' does not "
148
 
                "exist in branch:",))
149
 
 
150
 
    def test_diff_nonexistent_dotted_revision(self):
151
 
        out, err = self.run_bzr('diff -r 1.1', retcode=3)
152
 
        self.assertContainsRe(err,
153
 
            "Requested revision: '1.1' does not exist in branch:")
154
 
 
155
 
    def test_diff_nonexistent_dotted_revision_change(self):
156
 
        out, err = self.run_bzr('diff -c 1.1', retcode=3)
157
 
        self.assertContainsRe(err,
158
 
            "Requested revision: '1.1' does not exist in branch:")
 
133
        out, err = self.run_bzr('diff -r 1..23..123', retcode=3)
 
134
        self.assertContainsRe(err, 'one or two revision specifiers')
159
135
 
160
136
    def test_diff_unversioned(self):
161
137
        # Get an error when diffing a non-versioned file.
182
158
    def check_b2_vs_b1(self, cmd):
183
159
        # Compare branch2 vs branch1 using cmd and check the result
184
160
        out, err = self.run_bzr(cmd, retcode=1)
185
 
        self.assertEqual('', err)
186
 
        self.assertEqual("=== modified file 'file'\n"
 
161
        self.assertEquals('', err)
 
162
        self.assertEquals("=== modified file 'file'\n"
187
163
                          "--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
188
164
                          "+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
189
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                          "@@ -1,1 +1,1 @@\n"
194
170
    def check_b1_vs_b2(self, cmd):
195
171
        # Compare branch1 vs branch2 using cmd and check the result
196
172
        out, err = self.run_bzr(cmd, retcode=1)
197
 
        self.assertEqual('', err)
 
173
        self.assertEquals('', err)
198
174
        self.assertEqualDiff("=== modified file 'file'\n"
199
175
                              "--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
200
176
                              "+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
206
182
    def check_no_diffs(self, cmd):
207
183
        # Check that running cmd returns an empty diff
208
184
        out, err = self.run_bzr(cmd, retcode=0)
209
 
        self.assertEqual('', err)
210
 
        self.assertEqual('', out)
 
185
        self.assertEquals('', err)
 
186
        self.assertEquals('', out)
211
187
 
212
188
    def test_diff_branches(self):
213
189
        self.example_branches()
214
 
        # should open branch1 and diff against branch2,
 
190
        # should open branch1 and diff against branch2, 
215
191
        self.check_b2_vs_b1('diff -r branch:branch2 branch1')
216
192
        # Compare two working trees using various syntax forms
217
193
        self.check_b2_vs_b1('diff --old branch2 --new branch1')
255
231
 
256
232
        out, err = self.run_bzr('diff -r revno:1:branch2..revno:1:branch1',
257
233
                                )
258
 
        self.assertEqual('', err)
259
 
        self.assertEqual('', out)
 
234
        self.assertEquals('', err)
 
235
        self.assertEquals('', out)
260
236
        out, err = self.run_bzr('diff -r revno:2:branch2..revno:1:branch1',
261
237
                                retcode=1)
262
 
        self.assertEqual('', err)
 
238
        self.assertEquals('', err)
263
239
        self.assertEqualDiff("=== modified file 'file'\n"
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                              "--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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                              "+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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        self.example_branch2()
288
264
        self.build_tree_contents([('branch1/file1', 'new line')])
289
265
        os.mkdir('branch1/dir1')
290
 
        output = self.run_bzr('diff -r 1..', retcode=1,
291
 
                              working_dir='branch1/dir1')
 
266
        os.chdir('branch1/dir1')
 
267
        output = self.run_bzr('diff -r 1..', retcode=1)
292
268
        self.assertContainsRe(output[0], '\n\\-original line\n\\+new line\n')
293
269
 
294
270
    def test_diff_across_rename(self):
307
283
        output = self.run_bzr('diff -r 1.. branch1', retcode=1)
308
284
        self.assertContainsRe(output[0], '\n\\-original line\n\\+repo line\n')
309
285
 
310
 
    def test_custom_format(self):
311
 
        class BooDiffTree(DiffTree):
312
 
 
313
 
            def show_diff(self, specific_files, extra_trees=None):
314
 
                self.to_file.write("BOO!\n")
315
 
                return super(BooDiffTree, self).show_diff(specific_files,
316
 
                    extra_trees)
317
 
 
318
 
        diff_format_registry.register("boo", BooDiffTree, "Scary diff format")
319
 
        self.addCleanup(diff_format_registry.remove, "boo")
320
 
        self.make_example_branch()
321
 
        self.build_tree_contents([('hello', 'hello world!\n')])
322
 
        output = self.run_bzr('diff --format=boo', retcode=1)
323
 
        self.assertTrue("BOO!" in output[0])
324
 
        output = self.run_bzr('diff -Fboo', retcode=1)
325
 
        self.assertTrue("BOO!" in output[0])
326
 
 
327
286
 
328
287
class TestCheckoutDiff(TestDiff):
329
288
 
341
300
        return tree
342
301
 
343
302
    def example_branches(self):
344
 
        branch1_tree, branch2_tree = super(TestCheckoutDiff,
345
 
                                           self).example_branches()
 
303
        branch1_tree, branch2_tree = super(TestCheckoutDiff, self).example_branches()
346
304
        os.mkdir('checkouts')
347
305
        branch1_tree = branch1_tree.branch.create_checkout('checkouts/branch1')
348
306
        branch2_tree = branch2_tree.branch.create_checkout('checkouts/branch2')
382
340
 
383
341
    def test_external_diff(self):
384
342
        """Test that we can spawn an external diff process"""
385
 
        self.disable_missing_extensions_warning()
386
343
        # We have to use run_bzr_subprocess, because we need to
387
344
        # test writing directly to stdout, (there was a bug in
388
345
        # subprocess.py that we had to workaround).
389
346
        # However, if 'diff' may not be available
390
347
        self.make_example_branch()
391
 
        out, err = self.run_bzr_subprocess(
392
 
            'diff -Oprogress_bar=none -r 1 --diff-options -ub',
393
 
            universal_newlines=True,
394
 
            retcode=None)
 
348
        orig_progress = os.environ.get('BZR_PROGRESS_BAR')
 
349
        try:
 
350
            os.environ['BZR_PROGRESS_BAR'] = 'none'
 
351
            out, err = self.run_bzr_subprocess('diff -r 1 --diff-options -ub',
 
352
                                               universal_newlines=True,
 
353
                                               retcode=None)
 
354
        finally:
 
355
            if orig_progress is None:
 
356
                del os.environ['BZR_PROGRESS_BAR']
 
357
            else:
 
358
                os.environ['BZR_PROGRESS_BAR'] = orig_progress
 
359
            
395
360
        if 'Diff is not installed on this machine' in err:
396
 
            raise tests.TestSkipped("No external 'diff' is available")
 
361
            raise TestSkipped("No external 'diff' is available")
397
362
        self.assertEqual('', err)
398
363
        # We have to skip the stuff in the middle, because it depends
399
364
        # on time.time()
403
368
        self.assertEndsWith(out, "\n@@ -0,0 +1 @@\n"
404
369
                                 "+baz\n\n")
405
370
 
406
 
    def test_external_diff_options_and_using(self):
407
 
        """Test that the options are passed correctly to an external diff process"""
408
 
        self.requireFeature(features.diff_feature)
409
 
        self.make_example_branch()
410
 
        self.build_tree_contents([('hello', 'Foo\n')])
411
 
        out, err = self.run_bzr('diff --diff-options -i --using diff',
412
 
                                    retcode=1)
413
 
        self.assertEqual("=== modified file 'hello'\n", out)
414
 
        self.assertEqual('', err)
415
 
 
416
371
 
417
372
class TestDiffOutput(DiffBase):
418
373
 
421
376
        self.make_example_branch()
422
377
        self.build_tree_contents([('hello', 'hello world!\n')])
423
378
        output = self.run_bzr_subprocess('diff', retcode=1)[0]
424
 
        self.assertTrue('\n+hello world!\n' in output)
 
379
        self.assert_('\n+hello world!\n' in output)