#!/usr/bin/python
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import cStringIO, logging, os, sys, unittest
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# direct imports; autotest_lib has not been setup while testing this.
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from common_lib.test_utils import mock
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import setup_modules
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class LoggingErrorStderrTests(unittest.TestCase):
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def setUp(self):
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autotest_dir = os.path.abspath(os.path.join(setup_modules.dirname,
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'..'))
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setup_modules.setup(autotest_dir, root_module_name='autotest_lib')
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self.god = mock.mock_god()
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self.test_stderr = cStringIO.StringIO()
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self.god.stub_with(sys, 'stderr', self.test_stderr)
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self.old_root_logging_level = logging.root.level
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logging.basicConfig(level=logging.ERROR)
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# _autotest_logging_handle_error unsets this after being called once.
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logging.raiseExceptions = 1
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def tearDown(self):
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self.god.unstub_all()
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# Undo the setUp logging.basicConfig call.
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logging.basicConfig(level=self.old_root_logging_level)
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def assert_autotest_logging_handle_error_called(self):
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self.stderr_str = self.test_stderr.getvalue()
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self.assertTrue('Exception occurred formatting' in self.stderr_str,
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repr(self.stderr_str))
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def test_autotest_logging_handle_error(self):
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record = logging.LogRecord(
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'test', logging.DEBUG, __file__, 0, 'MESSAGE', 'ARGS', None)
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try:
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raise RuntimeError('Exception context needed for the test.')
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except RuntimeError:
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setup_modules._autotest_logging_handle_error(logging.Handler(),
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record)
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else:
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self.fail()
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self.assert_autotest_logging_handle_error_called()
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stderr_repr = repr(self.stderr_str)
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self.assertTrue(('MESSAGE' in self.stderr_str), stderr_repr)
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self.assertTrue(('ARGS' in self.stderr_str), stderr_repr)
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self.assertTrue(('Exception' in self.stderr_str), stderr_repr)
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self.assertTrue(('setup_modules_unittest.py' in self.stderr_str),
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stderr_repr)
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self.assertTrue(('disabled.\n' in self.stderr_str), stderr_repr)
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# Make sure this was turned off by our handle_error.
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self.assertFalse(logging.raiseExceptions)
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def test_logging_monkey_patch_wrong_number_of_args(self):
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logging.error('logging unittest %d %s', 32)
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self.assert_autotest_logging_handle_error_called()
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self.assertTrue('logging unittest' in self.stderr_str,
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repr(self.stderr_str))
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def test_logging_monkey_patch_wrong_type_of_arg(self):
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logging.error('logging unittest %d', 'eighteen')
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self.assert_autotest_logging_handle_error_called()
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self.assertTrue('logging unittest' in self.stderr_str,
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repr(self.stderr_str))
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def test_logging_no_error(self):
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logging.error('logging unittest. %s %s', 'meep', 'meep!')
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self.assertEqual('', self.test_stderr.getvalue())
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if __name__ == "__main__":
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unittest.main()
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