def test_should_not_ignore_parent_classes_even_for_remote_ones(self):
# We want tracebacks
cfg.CONF.set_override('debug', True)
cfg.CONF.set_override('allowed_rpc_exception_modules',
['heat.tests.test_fault_middleware'])
error = StackNotFoundChild(stack_name='a')
exc_info = (type(error), error, None)
serialized = rpc_common.serialize_remote_exception(exc_info)
remote_error = rpc_common.deserialize_remote_exception(
cfg.CONF, serialized)
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(remote_error)
expected_message, expected_traceback = str(remote_error).split('\n', 1)
expected = {
'code': 404,
'error': {
'message': expected_message,
'traceback': expected_traceback,
'type': 'StackNotFoundChild'
},
'explanation': 'The resource could not be found.',
'title': 'Not Found'
}
self.assertEqual(expected, msg)
def test_exception_with_non_ascii_chars(self):
# We set debug to true to test the code path for serializing traces too
cfg.CONF.set_override('debug', True)
msg = u'Error with non-ascii chars \x80'
class TestException(heat_exc.HeatException):
msg_fmt = msg
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(TestException())
expected = {
'code':
500,
'error': {
'message': u'Error with non-ascii chars \x80',
'traceback': 'None\n',
'type': 'TestException'
},
'explanation': ('The server has either erred or is '
'incapable of performing the requested '
'operation.'),
'title':
'Internal Server Error'
}
self.assertEqual(expected, msg)
def test_openstack_exception_with_kwargs(self):
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(heat_exc.StackNotFound(stack_name='a'))
expected = {'code': 404,
'error': {'message': 'The Stack (a) could not be found.',
'traceback': None,
'type': 'StackNotFound'},
'explanation': 'The resource could not be found.',
'title': 'Not Found'}
self.assertEqual(expected, msg)
def test_should_not_ignore_parent_classes(self):
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(StackNotFoundChild(stack_name='a'))
expected = {'code': 404,
'error': {'message': 'The Stack (a) could not be found.',
'traceback': None,
'type': 'StackNotFoundChild'},
'explanation': 'The resource could not be found.',
'title': 'Not Found'}
self.assertEqual(expected, msg)
def test_openstack_exception_without_kwargs(self):
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(heat_exc.StackResourceLimitExceeded())
expected = {'code': 500,
'error': {'message': 'Maximum resources '
'per stack exceeded.',
'traceback': None,
'type': 'StackResourceLimitExceeded'},
'explanation': 'The server has either erred or is '
'incapable of performing the requested '
'operation.',
'title': 'Internal Server Error'}
self.assertEqual(expected, msg)
def test_disguised_http_exception_with_newline(self):
wrapper = fault.FaultWrapper(None)
newline_error = ErrorWithNewline('Error with \n newline')
msg = wrapper._error(heat_exc.HTTPExceptionDisguise(newline_error))
expected = {'code': 400,
'error': {'message': 'Error with \n newline',
'traceback': None,
'type': 'ErrorWithNewline'},
'explanation': ('The server could not comply with the '
'request since it is either malformed '
'or otherwise incorrect.'),
'title': 'Bad Request'}
self.assertEqual(expected, msg)
def test_openstack_exception_without_kwargs(self):
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(heat_exc.NoServiceEndpoint())
expected = {'code': 500,
'error': {'message': 'Response from Keystone does '
'not contain a Heat endpoint.',
'traceback': None,
'type': 'NoServiceEndpoint'},
'explanation': 'The server has either erred or is '
'incapable of performing the requested '
'operation.',
'title': 'Internal Server Error'}
self.assertEqual(msg, expected)
def test_internal_server_error_when_exeption_and_parents_not_mapped(self):
wrapper = fault.FaultWrapper(None)
class NotMappedException(Exception):
pass
msg = wrapper._error(NotMappedException('A message'))
expected = {'code': 500,
'error': {'traceback': None,
'type': 'NotMappedException'},
'explanation': ('The server has either erred or is '
'incapable of performing the requested '
'operation.'),
'title': 'Internal Server Error'}
self.assertEqual(expected, msg)
def remote_exception_helper(self, name, error):
error.args = ()
exc_info = (type(error), error, None)
serialized = rpc_common.serialize_remote_exception(exc_info)
remote_error = rpc_common.deserialize_remote_exception(
serialized, name)
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(remote_error)
expected = {'code': 500,
'error': {'traceback': None,
'type': 'RemoteError'},
'explanation': msg['explanation'],
'title': 'Internal Server Error'}
self.assertEqual(expected, msg)
def test_remote_exception(self):
error = heat_exc.StackNotFound(stack_name='a')
exc_info = (type(error), error, None)
serialized = rpc_common.serialize_remote_exception(exc_info)
remote_error = rpc_common.deserialize_remote_exception(cfg.CONF,
serialized)
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(remote_error)
expected_message, expected_traceback = str(remote_error).split('\n', 1)
expected = {'code': 404,
'error': {'message': expected_message,
'traceback': expected_traceback,
'type': 'StackNotFound'},
'explanation': 'The resource could not be found.',
'title': 'Not Found'}
self.assertEqual(msg, expected)
def test_remote_exception(self):
# We want tracebacks
cfg.CONF.set_override('debug', True)
error = heat_exc.EntityNotFound(entity='Stack', name='a')
exc_info = (type(error), error, None)
serialized = rpc_common.serialize_remote_exception(exc_info)
remote_error = rpc_common.deserialize_remote_exception(
serialized, ["heat.common.exception"])
wrapper = fault.FaultWrapper(None)
msg = wrapper._error(remote_error)
expected_message, expected_traceback = str(
remote_error).split('\n', 1)
expected = {'code': 404,
'error': {'message': expected_message,
'traceback': expected_traceback,
'type': 'EntityNotFound'},
'explanation': 'The resource could not be found.',
'title': 'Not Found'}
self.assertEqual(expected, msg)
def faultwrap_filter(app, conf, **local_conf):
return fault.FaultWrapper(app)
