def test_metric_to_obs_item(self):
config = configobj.ConfigObj()
handler = ObservabilityHandler(config)
item = handler._get_queue_item(self.METRICS[0])
self.assertEqual(item, {
'service': 'cpu',
'source': 'com.example.www',
'name': 'total.idle',
'value': 1.4,
'measure_time': 1234567,
})
def test_metric_grouping(self):
config = configobj.ConfigObj()
handler = ObservabilityHandler(config)
items = [handler._get_queue_item(m) for m in self.METRICS]
groups = handler._create_request_groups(items)
self.assertEqual(
set(groups.keys()),
{('cpu', 'com.example.www2', 1234540),
('cpu', 'com.example.www', 1234560),
('cpu', 'com.example.www', 1234540)}
)
self.assertEqual(len(groups[('cpu', 'com.example.www2', 1234540)]), 1)
self.assertEqual(len(groups[('cpu', 'com.example.www', 1234560)]), 2)
self.assertEqual(len(groups[('cpu', 'com.example.www', 1234540)]), 2)
def test_metric_to_obs_expiration(self):
config = configobj.ConfigObj()
config['queue_max_age'] = 900
metric = Metric(
path='servers.com.example.www.cpu.total.idle',
value=0,
timestamp=0,
host='com.example.www')
handler = ObservabilityHandler(config)
handler.process(metric)
with patch('time.time', Mock(return_value=10)):
items = handler._get_valid_items()
self.assertEqual(len(items), 1)
with patch('time.time', Mock(return_value=900)):
items = handler._get_valid_items()
self.assertEqual(len(items), 0)
