client/setup_modules_unittest.py

   1 #!/usr/bin/python
   2
   3 import cStringIO, logging, os, sys, unittest
   4
   5 # direct imports; autotest_lib has not been setup while testing this.
   6 from common_lib.test_utils import mock
   7 import setup_modules
   8
   9
  10 class LoggingErrorStderrTests(unittest.TestCase):
  11     def setUp(self):
  12         autotest_dir = os.path.abspath(os.path.join(setup_modules.dirname,
  13                                                     '..'))
  14         setup_modules.setup(autotest_dir, root_module_name='autotest_lib')
  15         self.god = mock.mock_god()
  16         self.test_stderr = cStringIO.StringIO()
  17         self.god.stub_with(sys, 'stderr', self.test_stderr)
  18         self.old_root_logging_level = logging.root.level
  19         logging.basicConfig(level=logging.ERROR)
  20         # _autotest_logging_handle_error unsets this after being called once.
  21         logging.raiseExceptions = 1
  22
  23
  24     def tearDown(self):
  25         self.god.unstub_all()
  26         # Undo the setUp logging.basicConfig call.
  27         logging.basicConfig(level=self.old_root_logging_level)
  28
  29
  30     def assert_autotest_logging_handle_error_called(self):
  31         self.stderr_str = self.test_stderr.getvalue()
  32         self.assertTrue('Exception occurred formatting' in self.stderr_str,
  33                         repr(self.stderr_str))
  34
  35
  36     def test_autotest_logging_handle_error(self):
  37         record = logging.LogRecord(
  38                 'test', logging.DEBUG, __file__, 0, 'MESSAGE', 'ARGS', None)
  39         try:
  40             raise RuntimeError('Exception context needed for the test.')
  41         except RuntimeError:
  42             setup_modules._autotest_logging_handle_error(logging.Handler(),
  43                                                          record)
  44         else:
  45             self.fail()
  46         self.assert_autotest_logging_handle_error_called()
  47         stderr_repr = repr(self.stderr_str)
  48         self.assertTrue(('MESSAGE' in self.stderr_str), stderr_repr)
  49         self.assertTrue(('ARGS' in self.stderr_str), stderr_repr)
  50         self.assertTrue(('Exception' in self.stderr_str), stderr_repr)
  51         self.assertTrue(('setup_modules_unittest.py' in self.stderr_str),
  52                         stderr_repr)
  53         self.assertTrue(('disabled.\n' in self.stderr_str), stderr_repr)
  54         # Make sure this was turned off by our handle_error.
  55         self.assertFalse(logging.raiseExceptions)
  56
  57
  58     def test_logging_monkey_patch_wrong_number_of_args(self):
  59         logging.error('logging unittest %d %s', 32)
  60         self.assert_autotest_logging_handle_error_called()
  61         self.assertTrue('logging unittest' in self.stderr_str,
  62                         repr(self.stderr_str))
  63
  64
  65     def test_logging_monkey_patch_wrong_type_of_arg(self):
  66         logging.error('logging unittest %d', 'eighteen')
  67         self.assert_autotest_logging_handle_error_called()
  68         self.assertTrue('logging unittest' in self.stderr_str,
  69                         repr(self.stderr_str))
  70
  71
  72     def test_logging_no_error(self):
  73         logging.error('logging unittest.  %s %s', 'meep', 'meep!')
  74         self.assertEqual('', self.test_stderr.getvalue())
  75
  76
  77 if __name__ == "__main__":
  78     unittest.main()