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Viewing changes to bzrlib/tests/test_msgeditor.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2009-07-30 14:24:06 UTC
  • mfrom: (4576.1.1 export-to-dir)
  • Revision ID: pqm@pqm.ubuntu.com-20090730142406-wg8gmxpcjz4c1z00
(bialix) Allow 'bzr export' to export into an existing (but empty)
        directory

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bzrlib/tests/test_msgeditor.py
 
1
# Copyright (C) 2005 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
"""Test commit message editor.
 
18
"""
 
19
 
 
20
import os
 
21
import sys
 
22
 
 
23
from bzrlib import (
 
24
    commit,
 
25
    errors,
 
26
    msgeditor,
 
27
    osutils,
 
28
    tests,
 
29
    trace,
 
30
    )
 
31
from bzrlib.branch import Branch
 
32
from bzrlib.config import ensure_config_dir_exists, config_filename
 
33
from bzrlib.msgeditor import (
 
34
    make_commit_message_template_encoded,
 
35
    edit_commit_message_encoded
 
36
)
 
37
from bzrlib.tests import (
 
38
    TestCaseWithTransport,
 
39
    TestNotApplicable,
 
40
    TestSkipped,
 
41
    multiply_tests,
 
42
    probe_bad_non_ascii,
 
43
    split_suite_by_re,
 
44
    )
 
45
from bzrlib.tests.EncodingAdapter import encoding_scenarios
 
46
from bzrlib.trace import mutter
 
47
 
 
48
 
 
49
def load_tests(standard_tests, module, loader):
 
50
    """Parameterize the test for tempfile creation with different encodings."""
 
51
    to_adapt, result = split_suite_by_re(standard_tests,
 
52
        "test__create_temp_file_with_commit_template_in_unicode_dir")
 
53
    return multiply_tests(to_adapt, encoding_scenarios, result)
 
54
 
 
55
 
 
56
class MsgEditorTest(TestCaseWithTransport):
 
57
 
 
58
    def make_uncommitted_tree(self):
 
59
        """Build a branch with uncommitted unicode named changes in the cwd."""
 
60
        working_tree = self.make_branch_and_tree('.')
 
61
        b = working_tree.branch
 
62
        filename = u'hell\u00d8'
 
63
        try:
 
64
            self.build_tree_contents([(filename, 'contents of hello')])
 
65
        except UnicodeEncodeError:
 
66
            raise TestSkipped("can't build unicode working tree in "
 
67
                "filesystem encoding %s" % sys.getfilesystemencoding())
 
68
        working_tree.add(filename)
 
69
        return working_tree
 
70
 
 
71
    def test_commit_template(self):
 
72
        """Test building a commit message template"""
 
73
        working_tree = self.make_uncommitted_tree()
 
74
        template = msgeditor.make_commit_message_template(working_tree,
 
75
                                                                 None)
 
76
        self.assertEqualDiff(template,
 
77
u"""\
 
78
added:
 
79
  hell\u00d8
 
80
""")
 
81
 
 
82
    def make_multiple_pending_tree(self):
 
83
        from bzrlib import config
 
84
        config.GlobalConfig().set_user_option('email',
 
85
                                              'Bilbo Baggins <bb@hobbit.net>')
 
86
        tree = self.make_branch_and_tree('a')
 
87
        tree.commit('Initial checkin.', timestamp=1230912900, timezone=0)
 
88
        tree2 = tree.bzrdir.clone('b').open_workingtree()
 
89
        tree.commit('Minor tweak.', timestamp=1231977840, timezone=0)
 
90
        tree2.commit('Feature X work.', timestamp=1233186240, timezone=0)
 
91
        tree3 = tree2.bzrdir.clone('c').open_workingtree()
 
92
        tree2.commit('Feature X finished.', timestamp=1233187680, timezone=0)
 
93
        tree3.commit('Feature Y, based on initial X work.',
 
94
                     timestamp=1233285960, timezone=0)
 
95
        tree.merge_from_branch(tree2.branch)
 
96
        tree.merge_from_branch(tree3.branch)
 
97
        return tree
 
98
 
 
99
    def test_commit_template_pending_merges(self):
 
100
        """Test building a commit message template when there are pending
 
101
        merges.  The commit message should show all pending merge revisions,
 
102
        as does 'status -v', not only the merge tips.
 
103
        """
 
104
        working_tree = self.make_multiple_pending_tree()
 
105
        template = msgeditor.make_commit_message_template(working_tree, None)
 
106
        self.assertEqualDiff(template,
 
107
u"""\
 
108
pending merges:
 
109
  Bilbo Baggins 2009-01-29 Feature X finished.
 
110
    Bilbo Baggins 2009-01-28 Feature X work.
 
111
  Bilbo Baggins 2009-01-30 Feature Y, based on initial X work.
 
112
""")
 
113
 
 
114
    def test_commit_template_encoded(self):
 
115
        """Test building a commit message template"""
 
116
        working_tree = self.make_uncommitted_tree()
 
117
        template = make_commit_message_template_encoded(working_tree,
 
118
                                                        None,
 
119
                                                        output_encoding='utf8')
 
120
        self.assertEqualDiff(template,
 
121
u"""\
 
122
added:
 
123
  hell\u00d8
 
124
""".encode("utf8"))
 
125
 
 
126
 
 
127
    def test_commit_template_and_diff(self):
 
128
        """Test building a commit message template"""
 
129
        working_tree = self.make_uncommitted_tree()
 
130
        template = make_commit_message_template_encoded(working_tree,
 
131
                                                        None,
 
132
                                                        diff=True,
 
133
                                                        output_encoding='utf8')
 
134
 
 
135
        self.assertTrue("""\
 
136
@@ -0,0 +1,1 @@
 
137
+contents of hello
 
138
""" in template)
 
139
        self.assertTrue(u"""\
 
140
added:
 
141
  hell\u00d8
 
142
""".encode('utf8') in template)
 
143
 
 
144
    def make_do_nothing_editor(self):
 
145
        if sys.platform == "win32":
 
146
            f = file('fed.bat', 'w')
 
147
            f.write('@rem dummy fed')
 
148
            f.close()
 
149
            return 'fed.bat'
 
150
        else:
 
151
            f = file('fed.sh', 'wb')
 
152
            f.write('#!/bin/sh\n')
 
153
            f.close()
 
154
            os.chmod('fed.sh', 0755)
 
155
            return './fed.sh'
 
156
 
 
157
    def test_run_editor(self):
 
158
        os.environ['BZR_EDITOR'] = self.make_do_nothing_editor()
 
159
        self.assertEqual(True, msgeditor._run_editor(''),
 
160
                         'Unable to run dummy fake editor')
 
161
 
 
162
    def make_fake_editor(self, message='test message from fed\\n'):
 
163
        """Set up environment so that an editor will be a known script.
 
164
 
 
165
        Sets up BZR_EDITOR so that if an editor is spawned it will run a
 
166
        script that just adds a known message to the start of the file.
 
167
        """
 
168
        f = file('fed.py', 'wb')
 
169
        f.write('#!%s\n' % sys.executable)
 
170
        f.write("""\
 
171
# coding=utf-8
 
172
import sys
 
173
if len(sys.argv) == 2:
 
174
    fn = sys.argv[1]
 
175
    f = file(fn, 'rb')
 
176
    s = f.read()
 
177
    f.close()
 
178
    f = file(fn, 'wb')
 
179
    f.write('%s')
 
180
    f.write(s)
 
181
    f.close()
 
182
""" % (message, ))
 
183
        f.close()
 
184
        if sys.platform == "win32":
 
185
            # [win32] make batch file and set BZR_EDITOR
 
186
            f = file('fed.bat', 'w')
 
187
            f.write("""\
 
188
@echo off
 
189
"%s" fed.py %%1
 
190
""" % sys.executable)
 
191
            f.close()
 
192
            os.environ['BZR_EDITOR'] = 'fed.bat'
 
193
        else:
 
194
            # [non-win32] make python script executable and set BZR_EDITOR
 
195
            os.chmod('fed.py', 0755)
 
196
            os.environ['BZR_EDITOR'] = './fed.py'
 
197
 
 
198
    def test_edit_commit_message(self):
 
199
        working_tree = self.make_uncommitted_tree()
 
200
        self.make_fake_editor()
 
201
 
 
202
        mutter('edit_commit_message without infotext')
 
203
        self.assertEqual('test message from fed\n',
 
204
                         msgeditor.edit_commit_message(''))
 
205
 
 
206
        mutter('edit_commit_message with ascii string infotext')
 
207
        self.assertEqual('test message from fed\n',
 
208
                         msgeditor.edit_commit_message('spam'))
 
209
 
 
210
        mutter('edit_commit_message with unicode infotext')
 
211
        self.assertEqual('test message from fed\n',
 
212
                         msgeditor.edit_commit_message(u'\u1234'))
 
213
 
 
214
        tmpl = edit_commit_message_encoded(u'\u1234'.encode("utf8"))
 
215
        self.assertEqual('test message from fed\n', tmpl)
 
216
 
 
217
    def test_start_message(self):
 
218
        self.make_uncommitted_tree()
 
219
        self.make_fake_editor()
 
220
        self.assertEqual('test message from fed\nstart message\n',
 
221
                         msgeditor.edit_commit_message('',
 
222
                                              start_message='start message\n'))
 
223
        self.assertEqual('test message from fed\n',
 
224
                         msgeditor.edit_commit_message('',
 
225
                                              start_message=''))
 
226
 
 
227
    def test_deleted_commit_message(self):
 
228
        working_tree = self.make_uncommitted_tree()
 
229
 
 
230
        if sys.platform == 'win32':
 
231
            os.environ['BZR_EDITOR'] = 'cmd.exe /c del'
 
232
        else:
 
233
            os.environ['BZR_EDITOR'] = 'rm'
 
234
 
 
235
        self.assertRaises((IOError, OSError), msgeditor.edit_commit_message, '')
 
236
 
 
237
    def test__get_editor(self):
 
238
        # Test that _get_editor can return a decent list of items
 
239
        bzr_editor = os.environ.get('BZR_EDITOR')
 
240
        visual = os.environ.get('VISUAL')
 
241
        editor = os.environ.get('EDITOR')
 
242
        try:
 
243
            os.environ['BZR_EDITOR'] = 'bzr_editor'
 
244
            os.environ['VISUAL'] = 'visual'
 
245
            os.environ['EDITOR'] = 'editor'
 
246
 
 
247
            ensure_config_dir_exists()
 
248
            f = open(config_filename(), 'wb')
 
249
            f.write('editor = config_editor\n')
 
250
            f.close()
 
251
 
 
252
            editors = list(msgeditor._get_editor())
 
253
            editors = [editor for (editor, cfg_src) in editors]
 
254
 
 
255
            self.assertEqual(['bzr_editor', 'config_editor', 'visual',
 
256
                              'editor'], editors[:4])
 
257
 
 
258
            if sys.platform == 'win32':
 
259
                self.assertEqual(['wordpad.exe', 'notepad.exe'], editors[4:])
 
260
            else:
 
261
                self.assertEqual(['/usr/bin/editor', 'vi', 'pico', 'nano',
 
262
                                  'joe'], editors[4:])
 
263
 
 
264
        finally:
 
265
            # Restore the environment
 
266
            if bzr_editor is None:
 
267
                del os.environ['BZR_EDITOR']
 
268
            else:
 
269
                os.environ['BZR_EDITOR'] = bzr_editor
 
270
            if visual is None:
 
271
                del os.environ['VISUAL']
 
272
            else:
 
273
                os.environ['VISUAL'] = visual
 
274
            if editor is None:
 
275
                del os.environ['EDITOR']
 
276
            else:
 
277
                os.environ['EDITOR'] = editor
 
278
 
 
279
    def test__run_editor_EACCES(self):
 
280
        """If running a configured editor raises EACESS, the user is warned."""
 
281
        os.environ['BZR_EDITOR'] = 'eacces.py'
 
282
        f = file('eacces.py', 'wb')
 
283
        f.write('# Not a real editor')
 
284
        f.close()
 
285
        # Make the fake editor unreadable (and unexecutable)
 
286
        os.chmod('eacces.py', 0)
 
287
        # Set $EDITOR so that _run_editor will terminate before trying real
 
288
        # editors.
 
289
        os.environ['EDITOR'] = self.make_do_nothing_editor()
 
290
        # Call _run_editor, capturing mutter.warning calls.
 
291
        warnings = []
 
292
        def warning(*args):
 
293
            warnings.append(args[0] % args[1:])
 
294
        _warning = trace.warning
 
295
        trace.warning = warning
 
296
        try:
 
297
            msgeditor._run_editor('')
 
298
        finally:
 
299
            trace.warning = _warning
 
300
        self.assertStartsWith(warnings[0], 'Could not start editor "eacces.py"')
 
301
 
 
302
    def test__create_temp_file_with_commit_template(self):
 
303
        # check that commit template written properly
 
304
        # and has platform native line-endings (CRLF on win32)
 
305
        create_file = msgeditor._create_temp_file_with_commit_template
 
306
        msgfilename, hasinfo = create_file('infotext','----','start message')
 
307
        self.assertNotEqual(None, msgfilename)
 
308
        self.assertTrue(hasinfo)
 
309
        expected = os.linesep.join(['start message',
 
310
                                    '',
 
311
                                    '',
 
312
                                    '----',
 
313
                                    '',
 
314
                                    'infotext'])
 
315
        self.assertFileEqual(expected, msgfilename)
 
316
 
 
317
    def test__create_temp_file_with_commit_template_in_unicode_dir(self):
 
318
        self.requireFeature(tests.UnicodeFilenameFeature)
 
319
        if hasattr(self, 'info'):
 
320
            os.mkdir(self.info['directory'])
 
321
            os.chdir(self.info['directory'])
 
322
            msgeditor._create_temp_file_with_commit_template('infotext')
 
323
        else:
 
324
            raise TestNotApplicable('Test run elsewhere with non-ascii data.')
 
325
 
 
326
    def test__create_temp_file_with_empty_commit_template(self):
 
327
        # empty file
 
328
        create_file = msgeditor._create_temp_file_with_commit_template
 
329
        msgfilename, hasinfo = create_file('')
 
330
        self.assertNotEqual(None, msgfilename)
 
331
        self.assertFalse(hasinfo)
 
332
        self.assertFileEqual('', msgfilename)
 
333
 
 
334
    def test_unsupported_encoding_commit_message(self):
 
335
        old_env = osutils.set_or_unset_env('LANG', 'C')
 
336
        try:
 
337
            # LANG env variable has no effect on Windows
 
338
            # but some characters anyway cannot be represented
 
339
            # in default user encoding
 
340
            char = probe_bad_non_ascii(osutils.get_user_encoding())
 
341
            if char is None:
 
342
                raise TestSkipped('Cannot find suitable non-ascii character '
 
343
                    'for user_encoding (%s)' % osutils.get_user_encoding())
 
344
 
 
345
            self.make_fake_editor(message=char)
 
346
 
 
347
            working_tree = self.make_uncommitted_tree()
 
348
            self.assertRaises(errors.BadCommitMessageEncoding,
 
349
                              msgeditor.edit_commit_message, '')
 
350
        finally:
 
351
            osutils.set_or_unset_env('LANG', old_env)
 
352
 
 
353
    def test_generate_commit_message_template_no_hooks(self):
 
354
        commit_obj = commit.Commit()
 
355
        self.assertIs(None,
 
356
            msgeditor.generate_commit_message_template(commit_obj))
 
357
 
 
358
    def test_generate_commit_message_template_hook(self):
 
359
        def restoreDefaults():
 
360
            msgeditor.hooks['commit_message_template'] = []
 
361
        self.addCleanup(restoreDefaults)
 
362
        msgeditor.hooks.install_named_hook("commit_message_template",
 
363
                lambda commit_obj, msg: "save me some typing\n", None)
 
364
        commit_obj = commit.Commit()
 
365
        self.assertEquals("save me some typing\n",
 
366
            msgeditor.generate_commit_message_template(commit_obj))