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Viewing changes to bzrlib/tests/test_symbol_versioning.py

  • Committer: Aaron Bentley
  • Date: 2006-06-21 14:30:57 UTC
  • mfrom: (1801.1.1 bzr.dev)
  • mto: This revision was merged to the branch mainline in revision 1803.
  • Revision ID: abentley@panoramicfeedback.com-20060621143057-776e4b8d707e430e
Install benchmarks. (Jelmer Vernooij)

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bzrlib/tests/test_symbol_versioning.py
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# Copyright (C) 2006, 2007, 2009 Canonical Ltd
 
1
# Copyright (C) 2006 by Canonical Ltd
 
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#   Authors: Robert Collins <robert.collins@canonical.com>
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3
#
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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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13
#
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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
 
    )
 
20
import bzrlib.symbol_versioning as symbol_versioning
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21
from bzrlib.tests import TestCase
29
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():
33
26
    """Deprecated function docstring."""
34
27
    return 1
35
28
 
36
29
 
37
 
a_deprecated_list = symbol_versioning.deprecated_list(deprecated_in((0, 9, 0)),
38
 
    'a_deprecated_list', ['one'], extra="Don't use me")
39
 
 
40
 
 
41
 
a_deprecated_dict = symbol_versioning.DeprecatedDict(
42
 
    deprecated_in((0, 14, 0)),
43
 
    'a_deprecated_dict',
44
 
    dict(a=42),
45
 
    advice='Pull the other one!',
46
 
    )
47
 
 
48
 
 
49
30
class TestDeprecationWarnings(TestCase):
50
31
 
51
32
    def capture_warning(self, message, category, stacklevel=None):
55
36
        super(TestDeprecationWarnings, self).setUp()
56
37
        self._warnings = []
57
38
    
58
 
    @deprecated_method(deprecated_in((0, 7, 0)))
 
39
    @symbol_versioning.deprecated_method(symbol_versioning.zero_seven)
59
40
    def deprecated_method(self):
60
41
        """Deprecated method docstring.
61
 
 
 
42
        
62
43
        This might explain stuff.
63
44
        """
64
45
        return 1
65
46
 
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
74
 
        # 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
47
    def test_deprecated_method(self):
92
48
        expected_warning = (
93
49
            "bzrlib.tests.test_symbol_versioning."
94
50
            "TestDeprecationWarnings.deprecated_method "
95
51
            "was deprecated in version 0.7.", DeprecationWarning, 2)
96
52
        expected_docstring = ('Deprecated method docstring.\n'
97
 
                              '\n'
 
53
                              '        \n'
98
54
                              '        This might explain stuff.\n'
99
55
                              '        \n'
100
56
                              '        This method was deprecated in version 0.7.\n'
106
62
 
107
63
    def test_deprecated_function(self):
108
64
        expected_warning = (
109
 
            "bzrlib.tests.test_symbol_versioning.sample_deprecated_function "
 
65
            "bzrlib.tests.test_symbol_versioning.deprecated_function "
110
66
            "was deprecated in version 0.7.", DeprecationWarning, 2)
111
67
        expected_docstring = ('Deprecated function docstring.\n'
112
68
                              '\n'
113
69
                              'This function was deprecated in version 0.7.\n'
114
70
                              )
115
71
        self.check_deprecated_callable(expected_warning, expected_docstring,
116
 
                                       "sample_deprecated_function",
 
72
                                       "deprecated_function",
117
73
                                       "bzrlib.tests.test_symbol_versioning",
118
 
                                       sample_deprecated_function)
119
 
 
120
 
    def test_deprecated_list(self):
121
 
        expected_warning = (
122
 
            "Modifying a_deprecated_list was deprecated in version 0.9."
123
 
            " Don't use me", DeprecationWarning, 3)
124
 
        old_warning_method = symbol_versioning.warn
125
 
        try:
126
 
            symbol_versioning.set_warning_method(self.capture_warning)
127
 
            self.assertEqual(['one'], a_deprecated_list)
128
 
            self.assertEqual([], self._warnings)
129
 
 
130
 
            a_deprecated_list.append('foo')
131
 
            self.assertEqual([expected_warning], self._warnings)
132
 
            self.assertEqual(['one', 'foo'], a_deprecated_list)
133
 
 
134
 
            a_deprecated_list.extend(['bar', 'baz'])
135
 
            self.assertEqual([expected_warning]*2, self._warnings)
136
 
            self.assertEqual(['one', 'foo', 'bar', 'baz'], a_deprecated_list)
137
 
 
138
 
            a_deprecated_list.insert(1, 'xxx')
139
 
            self.assertEqual([expected_warning]*3, self._warnings)
140
 
            self.assertEqual(['one', 'xxx', 'foo', 'bar', 'baz'], a_deprecated_list)
141
 
 
142
 
            a_deprecated_list.remove('foo')
143
 
            self.assertEqual([expected_warning]*4, self._warnings)
144
 
            self.assertEqual(['one', 'xxx', 'bar', 'baz'], a_deprecated_list)
145
 
 
146
 
            val = a_deprecated_list.pop()
147
 
            self.assertEqual([expected_warning]*5, self._warnings)
148
 
            self.assertEqual('baz', val)
149
 
            self.assertEqual(['one', 'xxx', 'bar'], a_deprecated_list)
150
 
 
151
 
            val = a_deprecated_list.pop(1)
152
 
            self.assertEqual([expected_warning]*6, self._warnings)
153
 
            self.assertEqual('xxx', val)
154
 
            self.assertEqual(['one', 'bar'], a_deprecated_list)
155
 
        finally:
156
 
            symbol_versioning.set_warning_method(old_warning_method)
157
 
 
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
 
 
 
74
                                       deprecated_function)
177
75
 
178
76
    def check_deprecated_callable(self, expected_warning, expected_docstring,
179
77
                                  expected_name, expected_module,
192
90
            self.assertTrue(deprecated_callable.is_deprecated)
193
91
        finally:
194
92
            symbol_versioning.set_warning_method(old_warning_method)
195
 
 
 
93
    
196
94
    def test_deprecated_passed(self):
197
95
        self.assertEqual(True, symbol_versioning.deprecated_passed(None))
198
96
        self.assertEqual(True, symbol_versioning.deprecated_passed(True))
200
98
        self.assertEqual(False,
201
99
                         symbol_versioning.deprecated_passed(
202
100
                            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))