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112 lines
4.6 KiB
Python
112 lines
4.6 KiB
Python
import warnings
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import os
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import sys
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import unittest
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from test import test_support
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import warning_tests
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class TestModule(unittest.TestCase):
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def setUp(self):
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self.ignored = [w[2].__name__ for w in warnings.filters
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if w[0]=='ignore' and w[1] is None and w[3] is None]
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def test_warn_default_category(self):
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with test_support.catch_warning() as w:
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for i in range(4):
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text = 'multi %d' %i # Different text on each call
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warnings.warn(text)
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self.assertEqual(str(w.message), text)
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self.assert_(w.category is UserWarning)
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def test_warn_specific_category(self):
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with test_support.catch_warning() as w:
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text = 'None'
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for category in [DeprecationWarning, FutureWarning,
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PendingDeprecationWarning, RuntimeWarning,
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SyntaxWarning, UserWarning, Warning]:
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if category.__name__ in self.ignored:
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text = 'filtered out' + category.__name__
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warnings.warn(text, category)
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self.assertNotEqual(w.message, text)
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else:
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text = 'unfiltered %s' % category.__name__
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warnings.warn(text, category)
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self.assertEqual(str(w.message), text)
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self.assert_(w.category is category)
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def test_filtering(self):
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with test_support.catch_warning() as w:
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warnings.filterwarnings("error", "", Warning, "", 0)
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self.assertRaises(UserWarning, warnings.warn, 'convert to error')
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warnings.resetwarnings()
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text = 'handle normally'
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warnings.warn(text)
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self.assertEqual(str(w.message), text)
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self.assert_(w.category is UserWarning)
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warnings.filterwarnings("ignore", "", Warning, "", 0)
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text = 'filtered out'
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warnings.warn(text)
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self.assertNotEqual(str(w.message), text)
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warnings.resetwarnings()
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warnings.filterwarnings("error", "hex*", Warning, "", 0)
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self.assertRaises(UserWarning, warnings.warn, 'hex/oct')
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text = 'nonmatching text'
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warnings.warn(text)
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self.assertEqual(str(w.message), text)
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self.assert_(w.category is UserWarning)
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def test_options(self):
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# Uses the private _setoption() function to test the parsing
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# of command-line warning arguments
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with test_support.catch_warning():
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self.assertRaises(warnings._OptionError,
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warnings._setoption, '1:2:3:4:5:6')
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self.assertRaises(warnings._OptionError,
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warnings._setoption, 'bogus::Warning')
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self.assertRaises(warnings._OptionError,
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warnings._setoption, 'ignore:2::4:-5')
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warnings._setoption('error::Warning::0')
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self.assertRaises(UserWarning, warnings.warn, 'convert to error')
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def test_filename(self):
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with test_support.catch_warning() as w:
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warning_tests.inner("spam1")
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self.assertEqual(os.path.basename(w.filename), "warning_tests.py")
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warning_tests.outer("spam2")
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self.assertEqual(os.path.basename(w.filename), "warning_tests.py")
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def test_stacklevel(self):
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# Test stacklevel argument
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# make sure all messages are different, so the warning won't be skipped
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with test_support.catch_warning() as w:
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warning_tests.inner("spam3", stacklevel=1)
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self.assertEqual(os.path.basename(w.filename), "warning_tests.py")
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warning_tests.outer("spam4", stacklevel=1)
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self.assertEqual(os.path.basename(w.filename), "warning_tests.py")
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warning_tests.inner("spam5", stacklevel=2)
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self.assertEqual(os.path.basename(w.filename), "test_warnings.py")
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warning_tests.outer("spam6", stacklevel=2)
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self.assertEqual(os.path.basename(w.filename), "warning_tests.py")
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warning_tests.inner("spam7", stacklevel=9999)
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self.assertEqual(os.path.basename(w.filename), "sys")
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def test_main(verbose=None):
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# Obscure hack so that this test passes after reloads or repeated calls
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# to test_main (regrtest -R).
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if '__warningregistry__' in globals():
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del globals()['__warningregistry__']
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if hasattr(warning_tests, '__warningregistry__'):
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del warning_tests.__warningregistry__
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if hasattr(sys, '__warningregistry__'):
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del sys.__warningregistry__
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test_support.run_unittest(TestModule)
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if __name__ == "__main__":
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test_main(verbose=True)
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