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Viewing changes to bzrlib/tests/test_symbol_versioning.py

  • Committer: Ian Clatworthy
  • Date: 2007-11-28 00:07:56 UTC
  • mto: (3054.1.1 ianc-integration)
  • mto: This revision was merged to the branch mainline in revision 3055.
  • Revision ID: ian.clatworthy@internode.on.net-20071128000756-kqm8iqmc9281roii
more cleanups and creation of tutorials directory

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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, 2007 Canonical Ltd
 
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#   Authors: Robert Collins <robert.collins@canonical.com>
 
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#   and others
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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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"""Symbol versioning tests."""
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20
 
19
 
import warnings
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21
 
from bzrlib import symbol_versioning
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from bzrlib.symbol_versioning import (
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    deprecated_function,
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    deprecated_in,
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    deprecated_list,
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    deprecated_method,
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    )
 
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import bzrlib.symbol_versioning as symbol_versioning
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from bzrlib.tests import TestCase
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23
 
30
24
 
31
 
@deprecated_function(deprecated_in((0, 7, 0)))
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def sample_deprecated_function():
 
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@symbol_versioning.deprecated_function(symbol_versioning.zero_seven)
 
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def deprecated_function():
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    """Deprecated function docstring."""
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    return 1
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29
 
36
30
 
37
 
a_deprecated_list = symbol_versioning.deprecated_list(deprecated_in((0, 9, 0)),
 
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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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33
 
40
34
 
41
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a_deprecated_dict = symbol_versioning.DeprecatedDict(
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    deprecated_in((0, 14, 0)),
 
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    symbol_versioning.zero_fourteen,
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    'a_deprecated_dict',
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    dict(a=42),
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    advice='Pull the other one!',
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        super(TestDeprecationWarnings, self).setUp()
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        self._warnings = []
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51
    
58
 
    @deprecated_method(deprecated_in((0, 7, 0)))
 
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    @symbol_versioning.deprecated_method(symbol_versioning.zero_seven)
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    def deprecated_method(self):
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        """Deprecated method docstring.
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55
        
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        This might explain stuff.
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        """
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        return 1
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59
 
66
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    @staticmethod
67
 
    @deprecated_function(deprecated_in((0, 7, 0)))
 
61
    @symbol_versioning.deprecated_function(symbol_versioning.zero_seven)
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    def deprecated_static():
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        """Deprecated static."""
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        return 1
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70
        expected_warning = (
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            "bzrlib.tests.test_symbol_versioning."
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            "deprecated_static "
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            "was deprecated in version 0.7.0.", DeprecationWarning, 2)
 
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            "was deprecated in version 0.7.", DeprecationWarning, 2)
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        expected_docstring = (
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            'Deprecated static.\n'
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            '\n'
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            'This function was deprecated in version 0.7.0.\n'
 
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            'This function was deprecated in version 0.7.\n'
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            )
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        self.check_deprecated_callable(
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            expected_warning, expected_docstring,
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        expected_warning = (
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            "bzrlib.tests.test_symbol_versioning."
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            "TestDeprecationWarnings.deprecated_method "
95
 
            "was deprecated in version 0.7.0.", DeprecationWarning, 2)
96
 
        expected_docstring = (
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            'Deprecated method docstring.\n'
98
 
            '\n'
99
 
            '        This might explain stuff.\n'
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            '        \n'
101
 
            '        This method was deprecated in version 0.7.0.\n'
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            '        ')
 
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            "was deprecated in version 0.7.", DeprecationWarning, 2)
 
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        expected_docstring = ('Deprecated method docstring.\n'
 
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                              '        \n'
 
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                              '        This might explain stuff.\n'
 
93
                              '        \n'
 
94
                              '        This method was deprecated in version 0.7.\n'
 
95
                              '        ')
103
96
        self.check_deprecated_callable(expected_warning, expected_docstring,
104
97
                                       "deprecated_method",
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                                       "bzrlib.tests.test_symbol_versioning",
107
100
 
108
101
    def test_deprecated_function(self):
109
102
        expected_warning = (
110
 
            "bzrlib.tests.test_symbol_versioning.sample_deprecated_function "
111
 
            "was deprecated in version 0.7.0.", DeprecationWarning, 2)
 
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            "bzrlib.tests.test_symbol_versioning.deprecated_function "
 
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            "was deprecated in version 0.7.", DeprecationWarning, 2)
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105
        expected_docstring = ('Deprecated function docstring.\n'
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                              '\n'
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                              'This function was deprecated in version 0.7.0.\n'
 
107
                              'This function was deprecated in version 0.7.\n'
115
108
                              )
116
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        self.check_deprecated_callable(expected_warning, expected_docstring,
117
 
                                       "sample_deprecated_function",
 
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                                       "deprecated_function",
118
111
                                       "bzrlib.tests.test_symbol_versioning",
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                                       sample_deprecated_function)
 
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                                       deprecated_function)
120
113
 
121
114
    def test_deprecated_list(self):
122
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        expected_warning = (
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            "Modifying a_deprecated_list was deprecated in version 0.9.0."
 
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            "Modifying a_deprecated_list was deprecated in version 0.9."
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            " Don't use me", DeprecationWarning, 3)
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        old_warning_method = symbol_versioning.warn
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        try:
158
151
 
159
152
    def test_deprecated_dict(self):
160
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        expected_warning = (
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            "access to a_deprecated_dict was deprecated in version 0.14.0."
 
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            "access to a_deprecated_dict was deprecated in version 0.14."
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            " Pull the other one!", DeprecationWarning, 2)
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        old_warning_method = symbol_versioning.warn
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        try:
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            self.assertTrue(deprecated_callable.is_deprecated)
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        finally:
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            symbol_versioning.set_warning_method(old_warning_method)
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189
    
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    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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        """We can get a deprecation string for a method or function."""
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        self.assertEqual('bzrlib.tests.test_symbol_versioning.'
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            'TestDeprecationWarnings.test_deprecation_string was deprecated in '
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            'version 0.11.0.',
 
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            'version 0.11.',
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            symbol_versioning.deprecation_string(
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            self.test_deprecation_string,
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            deprecated_in((0, 11, 0))))
 
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            self.test_deprecation_string, symbol_versioning.zero_eleven))
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        self.assertEqual('bzrlib.symbol_versioning.deprecated_function was '
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            'deprecated in version 0.11.0.',
 
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            'deprecated in version 0.11.',
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            symbol_versioning.deprecation_string(
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                symbol_versioning.deprecated_function,
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                deprecated_in((0, 11, 0))))
218
 
 
219
 
 
220
 
class TestSuppressAndActivate(TestCase):
221
 
 
222
 
    def setUp(self):
223
 
        TestCase.setUp(self)
224
 
        existing_filters = list(warnings.filters)
225
 
        def restore():
226
 
            warnings.filters[:] = existing_filters
227
 
        self.addCleanup(restore)
228
 
        # Clean out the filters so we have a clean slate.
229
 
        warnings.resetwarnings()
230
 
 
231
 
    def assertFirstWarning(self, action, category):
232
 
        """Test the first warning in the filters is correct"""
233
 
        first = warnings.filters[0]
234
 
        self.assertEqual((action, category), (first[0], first[2]))
235
 
 
236
 
    def test_suppress_deprecation_warnings(self):
237
 
        """suppress_deprecation_warnings sets DeprecationWarning to ignored."""
238
 
        symbol_versioning.suppress_deprecation_warnings()
239
 
        self.assertFirstWarning('ignore', DeprecationWarning)
240
 
 
241
 
    def test_suppress_deprecation_with_warning_filter(self):
242
 
        """don't suppress if we already have a filter"""
243
 
        warnings.filterwarnings('error', category=Warning)
244
 
        self.assertFirstWarning('error', Warning)
245
 
        self.assertEqual(1, len(warnings.filters))
246
 
        symbol_versioning.suppress_deprecation_warnings(override=False)
247
 
        self.assertFirstWarning('error', Warning)
248
 
        self.assertEqual(1, len(warnings.filters))
249
 
 
250
 
    def test_suppress_deprecation_with_filter(self):
251
 
        """don't suppress if we already have a filter"""
252
 
        warnings.filterwarnings('error', category=DeprecationWarning)
253
 
        self.assertFirstWarning('error', DeprecationWarning)
254
 
        self.assertEqual(1, len(warnings.filters))
255
 
        symbol_versioning.suppress_deprecation_warnings(override=False)
256
 
        self.assertFirstWarning('error', DeprecationWarning)
257
 
        self.assertEqual(1, len(warnings.filters))
258
 
        symbol_versioning.suppress_deprecation_warnings(override=True)
259
 
        self.assertFirstWarning('ignore', DeprecationWarning)
260
 
        self.assertEqual(2, len(warnings.filters))
261
 
 
262
 
    def test_activate_deprecation_no_error(self):
263
 
        # First nuke the filters, so we know it is clean
264
 
        symbol_versioning.activate_deprecation_warnings()
265
 
        self.assertFirstWarning('default', DeprecationWarning)
266
 
 
267
 
    def test_activate_deprecation_with_error(self):
268
 
        # First nuke the filters, so we know it is clean
269
 
        # Add a warning == error rule
270
 
        warnings.filterwarnings('error', category=Warning)
271
 
        self.assertFirstWarning('error', Warning)
272
 
        self.assertEqual(1, len(warnings.filters))
273
 
        symbol_versioning.activate_deprecation_warnings(override=False)
274
 
        # There should not be a new warning
275
 
        self.assertFirstWarning('error', Warning)
276
 
        self.assertEqual(1, len(warnings.filters))
277
 
 
278
 
    def test_activate_deprecation_with_DW_error(self):
279
 
        # First nuke the filters, so we know it is clean
280
 
        # Add a warning == error rule
281
 
        warnings.filterwarnings('error', category=DeprecationWarning)
282
 
        self.assertFirstWarning('error', DeprecationWarning)
283
 
        self.assertEqual(1, len(warnings.filters))
284
 
        symbol_versioning.activate_deprecation_warnings(override=False)
285
 
        # There should not be a new warning
286
 
        self.assertFirstWarning('error', DeprecationWarning)
287
 
        self.assertEqual(1, len(warnings.filters))
288
 
        symbol_versioning.activate_deprecation_warnings(override=True)
289
 
        self.assertFirstWarning('default', DeprecationWarning)
290
 
        self.assertEqual(2, len(warnings.filters))
 
209
                symbol_versioning.zero_eleven))