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Viewing changes to bzrlib/tests/test_symbol_versioning.py

  • Committer: John Arbash Meinel
  • Date: 2006-08-16 15:31:34 UTC
  • mto: This revision was merged to the branch mainline in revision 1932.
  • Revision ID: john@arbash-meinel.com-20060816153134-22897affebb44911
Alexander Belchenko: Fix add --dry-run

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bzrlib/tests/test_symbol_versioning.py
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# Copyright (C) 2006, 2007, 2009 Canonical Ltd
 
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# Copyright (C) 2006 by Canonical Ltd
 
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#   Authors: Robert Collins <robert.collins@canonical.com>
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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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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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17
 
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"""Symbol versioning tests."""
18
19
 
19
 
import warnings
20
 
 
21
 
from bzrlib import symbol_versioning
22
 
from bzrlib.symbol_versioning import (
23
 
    deprecated_function,
24
 
    deprecated_in,
25
 
    deprecated_list,
26
 
    deprecated_method,
27
 
    )
 
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import bzrlib.symbol_versioning as symbol_versioning
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21
from bzrlib.tests import TestCase
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22
 
30
23
 
31
 
@deprecated_function(deprecated_in((0, 7, 0)))
32
 
def sample_deprecated_function():
 
24
@symbol_versioning.deprecated_function(symbol_versioning.zero_seven)
 
25
def deprecated_function():
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26
    """Deprecated function docstring."""
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27
    return 1
35
28
 
36
29
 
37
 
a_deprecated_list = symbol_versioning.deprecated_list(deprecated_in((0, 9, 0)),
 
30
a_deprecated_list = symbol_versioning.deprecated_list(symbol_versioning.zero_nine,
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    'a_deprecated_list', ['one'], extra="Don't use me")
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32
 
40
33
 
41
 
a_deprecated_dict = symbol_versioning.DeprecatedDict(
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    deprecated_in((0, 14, 0)),
43
 
    'a_deprecated_dict',
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    dict(a=42),
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    advice='Pull the other one!',
46
 
    )
47
 
 
48
 
 
49
34
class TestDeprecationWarnings(TestCase):
50
35
 
51
36
    def capture_warning(self, message, category, stacklevel=None):
55
40
        super(TestDeprecationWarnings, self).setUp()
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41
        self._warnings = []
57
42
    
58
 
    @deprecated_method(deprecated_in((0, 7, 0)))
 
43
    @symbol_versioning.deprecated_method(symbol_versioning.zero_seven)
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44
    def deprecated_method(self):
60
45
        """Deprecated method docstring.
61
 
 
 
46
        
62
47
        This might explain stuff.
63
48
        """
64
49
        return 1
65
50
 
66
 
    @staticmethod
67
 
    @deprecated_function(deprecated_in((0, 7, 0)))
68
 
    def deprecated_static():
69
 
        """Deprecated static."""
70
 
        return 1
71
 
 
72
 
    def test_deprecated_static(self):
73
 
        # XXX: The results are not quite right because the class name is not
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        # shown - however it is enough to give people a good indication of
75
 
        # where the problem is.
76
 
        expected_warning = (
77
 
            "bzrlib.tests.test_symbol_versioning."
78
 
            "deprecated_static "
79
 
            "was deprecated in version 0.7.", DeprecationWarning, 2)
80
 
        expected_docstring = (
81
 
            'Deprecated static.\n'
82
 
            '\n'
83
 
            'This function was deprecated in version 0.7.\n'
84
 
            )
85
 
        self.check_deprecated_callable(
86
 
            expected_warning, expected_docstring,
87
 
            "deprecated_static",
88
 
            "bzrlib.tests.test_symbol_versioning",
89
 
            self.deprecated_static)
90
 
 
91
51
    def test_deprecated_method(self):
92
52
        expected_warning = (
93
53
            "bzrlib.tests.test_symbol_versioning."
94
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            "TestDeprecationWarnings.deprecated_method "
95
55
            "was deprecated in version 0.7.", DeprecationWarning, 2)
96
56
        expected_docstring = ('Deprecated method docstring.\n'
97
 
                              '\n'
 
57
                              '        \n'
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                              '        This might explain stuff.\n'
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59
                              '        \n'
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60
                              '        This method was deprecated in version 0.7.\n'
106
66
 
107
67
    def test_deprecated_function(self):
108
68
        expected_warning = (
109
 
            "bzrlib.tests.test_symbol_versioning.sample_deprecated_function "
 
69
            "bzrlib.tests.test_symbol_versioning.deprecated_function "
110
70
            "was deprecated in version 0.7.", DeprecationWarning, 2)
111
71
        expected_docstring = ('Deprecated function docstring.\n'
112
72
                              '\n'
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                              'This function was deprecated in version 0.7.\n'
114
74
                              )
115
75
        self.check_deprecated_callable(expected_warning, expected_docstring,
116
 
                                       "sample_deprecated_function",
 
76
                                       "deprecated_function",
117
77
                                       "bzrlib.tests.test_symbol_versioning",
118
 
                                       sample_deprecated_function)
 
78
                                       deprecated_function)
119
79
 
120
80
    def test_deprecated_list(self):
121
81
        expected_warning = (
122
82
            "Modifying a_deprecated_list was deprecated in version 0.9."
123
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            " Don't use me", DeprecationWarning, 3)
 
84
        expected_doctstring = ('appending to a_deprecated_list is deprecated')
 
85
 
124
86
        old_warning_method = symbol_versioning.warn
125
87
        try:
126
88
            symbol_versioning.set_warning_method(self.capture_warning)
155
117
        finally:
156
118
            symbol_versioning.set_warning_method(old_warning_method)
157
119
 
158
 
    def test_deprecated_dict(self):
159
 
        expected_warning = (
160
 
            "access to a_deprecated_dict was deprecated in version 0.14."
161
 
            " Pull the other one!", DeprecationWarning, 2)
162
 
        old_warning_method = symbol_versioning.warn
163
 
        try:
164
 
            symbol_versioning.set_warning_method(self.capture_warning)
165
 
            self.assertEqual(len(a_deprecated_dict), 1)
166
 
            self.assertEqual([expected_warning], self._warnings)
167
 
 
168
 
            a_deprecated_dict['b'] = 42
169
 
            self.assertEqual(a_deprecated_dict['b'], 42)
170
 
            self.assertTrue('b' in a_deprecated_dict)
171
 
            del a_deprecated_dict['b']
172
 
            self.assertFalse('b' in a_deprecated_dict)
173
 
            self.assertEqual([expected_warning] * 6, self._warnings)
174
 
        finally:
175
 
            symbol_versioning.set_warning_method(old_warning_method)
176
 
 
177
 
 
178
120
    def check_deprecated_callable(self, expected_warning, expected_docstring,
179
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                                  expected_name, expected_module,
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                                  deprecated_callable):
192
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            self.assertTrue(deprecated_callable.is_deprecated)
193
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        finally:
194
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            symbol_versioning.set_warning_method(old_warning_method)
195
 
 
 
137
    
196
138
    def test_deprecated_passed(self):
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        self.assertEqual(True, symbol_versioning.deprecated_passed(None))
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        self.assertEqual(True, symbol_versioning.deprecated_passed(True))
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        self.assertEqual(False,
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                         symbol_versioning.deprecated_passed(
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                            symbol_versioning.DEPRECATED_PARAMETER))
203
 
 
204
 
    def test_deprecation_string(self):
205
 
        """We can get a deprecation string for a method or function."""
206
 
        self.assertEqual('bzrlib.tests.test_symbol_versioning.'
207
 
            'TestDeprecationWarnings.test_deprecation_string was deprecated in '
208
 
            'version 0.11.',
209
 
            symbol_versioning.deprecation_string(
210
 
            self.test_deprecation_string,
211
 
            deprecated_in((0, 11, 0))))
212
 
        self.assertEqual('bzrlib.symbol_versioning.deprecated_function was '
213
 
            'deprecated in version 0.11.',
214
 
            symbol_versioning.deprecation_string(
215
 
                symbol_versioning.deprecated_function,
216
 
                deprecated_in((0, 11, 0))))
217
 
 
218
 
 
219
 
class TestSuppressAndActivate(TestCase):
220
 
 
221
 
    def setUp(self):
222
 
        TestCase.setUp(self)
223
 
        existing_filters = list(warnings.filters)
224
 
        def restore():
225
 
            warnings.filters[:] = existing_filters
226
 
        self.addCleanup(restore)
227
 
        # Clean out the filters so we have a clean slate.
228
 
        warnings.resetwarnings()
229
 
 
230
 
    def assertFirstWarning(self, action, category):
231
 
        """Test the first warning in the filters is correct"""
232
 
        first = warnings.filters[0]
233
 
        self.assertEqual((action, category), (first[0], first[2]))
234
 
 
235
 
    def test_suppress_deprecation_warnings(self):
236
 
        """suppress_deprecation_warnings sets DeprecationWarning to ignored."""
237
 
        symbol_versioning.suppress_deprecation_warnings()
238
 
        self.assertFirstWarning('ignore', DeprecationWarning)
239
 
 
240
 
    def test_suppress_deprecation_with_warning_filter(self):
241
 
        """don't suppress if we already have a filter"""
242
 
        warnings.filterwarnings('error', category=Warning)
243
 
        self.assertFirstWarning('error', Warning)
244
 
        self.assertEqual(1, len(warnings.filters))
245
 
        symbol_versioning.suppress_deprecation_warnings(override=False)
246
 
        self.assertFirstWarning('error', Warning)
247
 
        self.assertEqual(1, len(warnings.filters))
248
 
 
249
 
    def test_suppress_deprecation_with_filter(self):
250
 
        """don't suppress if we already have a filter"""
251
 
        warnings.filterwarnings('error', category=DeprecationWarning)
252
 
        self.assertFirstWarning('error', DeprecationWarning)
253
 
        self.assertEqual(1, len(warnings.filters))
254
 
        symbol_versioning.suppress_deprecation_warnings(override=False)
255
 
        self.assertFirstWarning('error', DeprecationWarning)
256
 
        self.assertEqual(1, len(warnings.filters))
257
 
        symbol_versioning.suppress_deprecation_warnings(override=True)
258
 
        self.assertFirstWarning('ignore', DeprecationWarning)
259
 
        self.assertEqual(2, len(warnings.filters))
260
 
 
261
 
    def test_activate_deprecation_no_error(self):
262
 
        # First nuke the filters, so we know it is clean
263
 
        symbol_versioning.activate_deprecation_warnings()
264
 
        self.assertFirstWarning('default', DeprecationWarning)
265
 
 
266
 
    def test_activate_deprecation_with_error(self):
267
 
        # First nuke the filters, so we know it is clean
268
 
        # Add a warning == error rule
269
 
        warnings.filterwarnings('error', category=Warning)
270
 
        self.assertFirstWarning('error', Warning)
271
 
        self.assertEqual(1, len(warnings.filters))
272
 
        symbol_versioning.activate_deprecation_warnings(override=False)
273
 
        # There should not be a new warning
274
 
        self.assertFirstWarning('error', Warning)
275
 
        self.assertEqual(1, len(warnings.filters))
276
 
 
277
 
    def test_activate_deprecation_with_DW_error(self):
278
 
        # First nuke the filters, so we know it is clean
279
 
        # Add a warning == error rule
280
 
        warnings.filterwarnings('error', category=DeprecationWarning)
281
 
        self.assertFirstWarning('error', DeprecationWarning)
282
 
        self.assertEqual(1, len(warnings.filters))
283
 
        symbol_versioning.activate_deprecation_warnings(override=False)
284
 
        # There should not be a new warning
285
 
        self.assertFirstWarning('error', DeprecationWarning)
286
 
        self.assertEqual(1, len(warnings.filters))
287
 
        symbol_versioning.activate_deprecation_warnings(override=True)
288
 
        self.assertFirstWarning('default', DeprecationWarning)
289
 
        self.assertEqual(2, len(warnings.filters))