def test_no_fetch_ec2_meta_data_when_cloud_retries_is_max(self):
"""
Do not fetch EC2 info when C{_cloud_retries} is C{METADATA_RETRY_MAX}
"""
self.config.cloud = True
self.mstore.set_accepted_types(["cloud-instance-metadata"])
plugin = ComputerInfo(fetch_async=self.fetch_func)
plugin._cloud_retries = METADATA_RETRY_MAX
self.monitor.add(plugin)
plugin.exchange()
messages = self.mstore.get_pending_messages()
self.assertEqual(0, len(messages))
def test_fetch_ec2_meta_data_bad_result_max_retry(self):
"""
L{_fetch_ec2_meta_data} returns C{None} and logs an error when
crossing the retry threshold C{METADATA_RETRY_MAX}.
"""
self.log_helper.ignore_errors(HTTPCodeError)
self.add_query_result("ami-id", HTTPCodeError(404, "notfound"))
plugin = ComputerInfo(fetch_async=self.fetch_func)
plugin._cloud_retries = METADATA_RETRY_MAX
result = yield plugin._fetch_ec2_meta_data()
self.assertIn(
"INFO: No cloud meta-data available. Server returned "
"HTTP code 404", self.logfile.getvalue())
self.assertEqual(None, result)
def test_fetch_ec2_meta_data_no_cloud_api_max_retry(self):
"""
L{_fetch_ec2_meta_data} returns C{None} when faced with no EC2 cloud
API service and reports the specific C{PyCurlError} upon message
exchange when L{_cloud_retries} equals C{METADATA_RETRY_MAX}.
"""
self.log_helper.ignore_errors(PyCurlError)
self.add_query_result("instance-id", PyCurlError(60, "pycurl error"))
plugin = ComputerInfo(fetch_async=self.fetch_func)
plugin._cloud_retries = METADATA_RETRY_MAX
result = yield plugin._fetch_ec2_meta_data()
self.assertIn(
"INFO: No cloud meta-data available. "
"Error 60: pycurl error\n", self.logfile.getvalue())
self.assertEqual(None, result)