def test_gauge(self):
"""Test that we can track gauges in Service303"""
# Add a gauge with a label to the regisry
c = Gauge('process_max_fds', 'A gauge', ['result'],
registry=self.registry)
# Create two series for value1 and value2
c.labels('success').inc(1.23)
c.labels('failure').inc(2.34)
# Build proto outputs
gauge1 = metrics_pb2.Gauge(value=1.23)
gauge2 = metrics_pb2.Gauge(value=2.34)
metric1 = metrics_pb2.Metric(gauge=gauge1,
timestamp_ms=1234000)
metric2 = metrics_pb2.Metric(gauge=gauge2,
timestamp_ms=1234000)
family = metrics_pb2.MetricFamily(
name=str(metricsd_pb2.process_max_fds),
type=metrics_pb2.GAUGE)
metric1.label.add(
name=str(metricsd_pb2.result),
value='success')
metric2.label.add(
name=str(metricsd_pb2.result),
value='failure')
family.metric.extend([metric1, metric2])
with unittest.mock.patch('time.time') as mock_time:
mock_time.side_effect = lambda: 1234
self.assertCountEqual(list(metrics_export.get_metrics(self.registry))[0].metric,
family.metric)
def _gauge_to_proto(
metric: prometheus_client.core.Metric, ) -> metrics_pb2.MetricFamily:
ret = metrics_pb2.MetricFamily(name=metric.name, type=metrics_pb2.GAUGE)
for sample in metric.samples:
(_, labels, value, *_) = sample
met = metrics_pb2.Metric(gauge=metrics_pb2.Gauge(value=value))
for key in labels:
met.label.add(name=key, value=labels[key])
ret.metric.extend([met])
return ret