| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| package metrics |
| |
| import ( |
| "strings" |
| "testing" |
| |
| "github.com/prometheus/client_golang/prometheus" |
| dto "github.com/prometheus/client_model/go" |
| "github.com/stretchr/testify/assert" |
| ) |
| |
| var ( |
| labelNames = []string{"APPID", "VERSION"} |
| labelValues = map[string]string{"APPID": "sockshop", "VERSION": "0.1"} |
| ) |
| |
| func TestPrometheusConfig_CounterFromNameAndLabelValues(t *testing.T) { |
| assert := assert.New(t) |
| var totalMetricCreated int |
| DefaultPrometheusExporter.Count("total_request", labelNames, labelValues) |
| metricFamilies, err := prometheus.DefaultGatherer.Gather() |
| assert.Nil(err, "error should be nil while collecting metrics from prometheus") |
| for _, metricFamily := range metricFamilies { |
| if metricName := metricFamily.GetName(); strings.Contains(metricName, "total_request") { |
| assert.Equal(metricFamily.GetType(), dto.MetricType_COUNTER) |
| totalMetricCreated++ |
| } |
| } |
| assert.Equal(totalMetricCreated, 1) |
| } |
| |
| func TestPrometheusConfig_GaugeFromNameAndLabelValues(t *testing.T) { |
| assert := assert.New(t) |
| var totalMetricCreated int |
| var gaugeValue *float64 |
| DefaultPrometheusExporter.Gauge("memory_used", 12, labelNames, labelValues) |
| metricFamilies, err := prometheus.DefaultGatherer.Gather() |
| assert.Nil(err, "error should be nil while collecting metrics from prometheus") |
| for _, metricFamily := range metricFamilies { |
| if metricName := metricFamily.GetName(); strings.Contains(metricName, "memory_used") { |
| assert.Equal(metricFamily.GetType(), dto.MetricType_GAUGE) |
| totalMetricCreated++ |
| gaugeValue = metricFamily.Metric[0].Gauge.Value |
| } |
| } |
| assert.Equal(totalMetricCreated, 1) |
| assert.Equal(*gaugeValue, float64(12)) |
| } |
| |
| func TestPrometheusConfig_SummaryFromNameAndLabelValues(t *testing.T) { |
| assert := assert.New(t) |
| var totalMetricCreated int |
| var sampleCount *uint64 |
| DefaultPrometheusExporter.Summary("request_latency", 12, labelNames, labelValues) |
| metricFamilies, err := prometheus.DefaultGatherer.Gather() |
| assert.Nil(err, "error should be nil while collecting metrics from prometheus") |
| for _, metricFamily := range metricFamilies { |
| if metricName := metricFamily.GetName(); strings.Contains(metricName, "request_latency") { |
| assert.Equal(metricFamily.GetType(), dto.MetricType_SUMMARY) |
| totalMetricCreated++ |
| sampleCount = metricFamily.Metric[0].Summary.SampleCount |
| } |
| } |
| assert.Equal(totalMetricCreated, 1) |
| assert.Equal(*sampleCount, uint64(1)) |
| } |