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