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# Copyright (C) 2011, 2016 Canonical Ltd
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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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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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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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"""Tests for test feature dependencies."""
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from bzrlib.tests import (
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class TestFeature(tests.TestCase):
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def test_caching(self):
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"""Feature._probe is called by the feature at most once."""
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class InstrumentedFeature(features.Feature):
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super(InstrumentedFeature, self).__init__()
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self.calls.append('_probe')
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feature = InstrumentedFeature()
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self.assertEqual(['_probe'], feature.calls)
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self.assertEqual(['_probe'], feature.calls)
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def test_named_str(self):
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"""Feature.__str__ should thunk to feature_name()."""
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class NamedFeature(features.Feature):
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def feature_name(self):
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feature = NamedFeature()
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self.assertEqual('symlinks', str(feature))
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def test_default_str(self):
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"""Feature.__str__ should default to __class__.__name__."""
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class NamedFeature(features.Feature):
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feature = NamedFeature()
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self.assertEqual('NamedFeature', str(feature))
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class TestUnavailableFeature(tests.TestCase):
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def test_access_feature(self):
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feature = features.Feature()
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exception = tests.UnavailableFeature(feature)
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self.assertIs(feature, exception.args[0])
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# Although this was deprecated a long time ago, please keep it here because
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# it's really just a test fixture for test-feature deprecation.
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simple_thunk_feature = features._CompatabilityThunkFeature(
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symbol_versioning.deprecated_in((2, 1, 0)),
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'bzrlib.tests.test_features',
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'simple_thunk_feature',
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'UnicodeFilenameFeature',
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replacement_module='bzrlib.tests.features')
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class Test_CompatibilityFeature(tests.TestCase):
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def test_does_thunk(self):
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res = self.callDeprecated(
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['bzrlib.tests.test_features.simple_thunk_feature '
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'was deprecated in version 2.1.0. '
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'Use bzrlib.tests.features.UnicodeFilenameFeature instead.'],
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simple_thunk_feature.available)
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self.assertEqual(features.UnicodeFilenameFeature.available(), res)
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def test_reports_correct_location(self):
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a_feature = features._CompatabilityThunkFeature(
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symbol_versioning.deprecated_in((2, 1, 0)),
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'bzrlib.tests.test_features',
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'UnicodeFilenameFeature',
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replacement_module='bzrlib.tests.features')
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def test_caller(message, category=None, stacklevel=1):
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# Find ourselves back from the right frame
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caller = sys._getframe(stacklevel)
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reported_file = caller.f_globals['__file__']
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reported_lineno = caller.f_lineno
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self.assertEqual(__file__, reported_file)
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# The call we're tracking occurred the line after we grabbed the
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self.assertEqual(self.lineno + 1, reported_lineno)
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self.overrideAttr(symbol_versioning, 'warn', test_caller)
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# Grab the current lineno
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self.lineno = sys._getframe().f_lineno
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self.requireFeature(a_feature)
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class TestModuleAvailableFeature(tests.TestCase):
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def test_available_module(self):
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feature = features.ModuleAvailableFeature('bzrlib.tests')
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self.assertEqual('bzrlib.tests', feature.module_name)
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self.assertEqual('bzrlib.tests', str(feature))
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self.assertTrue(feature.available())
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self.assertIs(tests, feature.module)
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def test_unavailable_module(self):
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feature = features.ModuleAvailableFeature(
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'bzrlib.no_such_module_exists')
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self.assertEqual('bzrlib.no_such_module_exists', str(feature))
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self.assertFalse(feature.available())
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self.assertIs(None, feature.module)
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class TestUnicodeFilenameFeature(tests.TestCase):
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def test_probe_passes(self):
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"""UnicodeFilenameFeature._probe passes."""
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# We can't test much more than that because the behaviour depends
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features.UnicodeFilenameFeature._probe()
added
removed
bzrlib/tests/test_features.py
