mirror of
https://mau.dev/maunium/synapse.git
synced 2024-12-15 01:03:50 +01:00
48b7ff7a35
prometheus_client 0.5 has a named-tuple Sample type with more member than the old plain tuple had. This commit makes sure the unit test detects this and changes the way it reads the sample. Signed-off-by: Maarten de Vries <maarten@de-vri.es>
103 lines
3.2 KiB
Python
103 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2018 New Vector Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
|
|
from synapse.metrics import InFlightGauge
|
|
|
|
from tests import unittest
|
|
|
|
|
|
def get_sample_labels_value(sample):
|
|
""" Extract the labels and values of a sample.
|
|
|
|
prometheus_client 0.5 changed the sample type to a named tuple with more
|
|
members than the plain tuple had in 0.4 and earlier. This function can
|
|
extract the labels and value from the sample for both sample types.
|
|
|
|
Args:
|
|
sample: The sample to get the labels and value from.
|
|
Returns:
|
|
A tuple of (labels, value) from the sample.
|
|
"""
|
|
|
|
# If the sample has a labels and value attribute, use those.
|
|
if hasattr(sample, "labels") and hasattr(sample, "value"):
|
|
return sample.labels, sample.value
|
|
# Otherwise fall back to treating it as a plain 3 tuple.
|
|
else:
|
|
_, labels, value = sample
|
|
return labels, value
|
|
|
|
|
|
class TestMauLimit(unittest.TestCase):
|
|
def test_basic(self):
|
|
gauge = InFlightGauge(
|
|
"test1", "",
|
|
labels=["test_label"],
|
|
sub_metrics=["foo", "bar"],
|
|
)
|
|
|
|
def handle1(metrics):
|
|
metrics.foo += 2
|
|
metrics.bar = max(metrics.bar, 5)
|
|
|
|
def handle2(metrics):
|
|
metrics.foo += 3
|
|
metrics.bar = max(metrics.bar, 7)
|
|
|
|
gauge.register(("key1",), handle1)
|
|
|
|
self.assert_dict({
|
|
"test1_total": {("key1",): 1},
|
|
"test1_foo": {("key1",): 2},
|
|
"test1_bar": {("key1",): 5},
|
|
}, self.get_metrics_from_gauge(gauge))
|
|
|
|
gauge.unregister(("key1",), handle1)
|
|
|
|
self.assert_dict({
|
|
"test1_total": {("key1",): 0},
|
|
"test1_foo": {("key1",): 0},
|
|
"test1_bar": {("key1",): 0},
|
|
}, self.get_metrics_from_gauge(gauge))
|
|
|
|
gauge.register(("key1",), handle1)
|
|
gauge.register(("key2",), handle2)
|
|
|
|
self.assert_dict({
|
|
"test1_total": {("key1",): 1, ("key2",): 1},
|
|
"test1_foo": {("key1",): 2, ("key2",): 3},
|
|
"test1_bar": {("key1",): 5, ("key2",): 7},
|
|
}, self.get_metrics_from_gauge(gauge))
|
|
|
|
gauge.unregister(("key2",), handle2)
|
|
gauge.register(("key1",), handle2)
|
|
|
|
self.assert_dict({
|
|
"test1_total": {("key1",): 2, ("key2",): 0},
|
|
"test1_foo": {("key1",): 5, ("key2",): 0},
|
|
"test1_bar": {("key1",): 7, ("key2",): 0},
|
|
}, self.get_metrics_from_gauge(gauge))
|
|
|
|
def get_metrics_from_gauge(self, gauge):
|
|
results = {}
|
|
|
|
for r in gauge.collect():
|
|
results[r.name] = {
|
|
tuple(labels[x] for x in gauge.labels): value
|
|
for labels, value in map(get_sample_labels_value, r.samples)
|
|
}
|
|
|
|
return results
|