mirror of
https://github.com/apple/foundationdb.git
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272 lines
8.9 KiB
Go
272 lines
8.9 KiB
Go
// metrics_test.go
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//
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// This source file is part of the FoundationDB open source project
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//
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// Copyright 2021-2024 Apple Inc. and the FoundationDB project authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"strings"
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. "github.com/onsi/ginkgo/v2"
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. "github.com/onsi/gomega"
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"github.com/prometheus/client_golang/prometheus"
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"k8s.io/utils/pointer"
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)
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var _ = Describe("Testing monitor metrics", func() {
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When("getting the copy details", func() {
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sevenOneVersion := "7.1.57"
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sevenThreeVersion := "7.3.37"
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var registry *prometheus.Registry
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var monitorMetrics *metrics
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BeforeEach(func() {
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registry = prometheus.NewRegistry()
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monitorMetrics = registerMetrics(registry)
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})
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It("shouldn't throw any error", func() {
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Expect(monitorMetrics).NotTo(BeNil())
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})
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When("no metrics are added", func() {
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It("only the counters should be setup", func() {
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metrics, err := registry.Gather()
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Expect(err).NotTo(HaveOccurred())
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Expect(metrics).To(HaveLen(2))
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})
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})
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When("a configuration change is registered", func() {
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BeforeEach(func() {
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monitorMetrics.registerConfigurationChange(sevenOneVersion)
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})
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It("should update the metrics", func() {
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metrics, err := registry.Gather()
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Expect(err).NotTo(HaveOccurred())
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Expect(metrics).To(HaveLen(3))
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for _, metric := range metrics {
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Expect(metric.Metric).To(HaveLen(1))
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name := pointer.StringDeref(metric.Name, "")
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if strings.HasSuffix(name, configurationChangeCountMetricName) {
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Expect(*metric.Metric[0].Counter.Value).To(BeNumerically("==", 1))
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continue
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}
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if strings.HasSuffix(name, desiredVersionMetricName) {
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Expect(*metric.Metric[0].Gauge.Value).To(BeNumerically("==", 1))
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Expect(metric.Metric[0].Label).To(HaveLen(1))
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Expect(*metric.Metric[0].Label[0].Name).To(Equal(versionLabel))
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Expect(*metric.Metric[0].Label[0].Value).To(Equal(sevenOneVersion))
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continue
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}
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}
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})
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When("a new configuration change is registered for the same version", func() {
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BeforeEach(func() {
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monitorMetrics.registerConfigurationChange(sevenOneVersion)
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})
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It("should update the metrics", func() {
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metrics, err := registry.Gather()
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Expect(err).NotTo(HaveOccurred())
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Expect(metrics).To(HaveLen(3))
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for _, metric := range metrics {
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Expect(metric.Metric).To(HaveLen(1))
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name := pointer.StringDeref(metric.Name, "")
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if strings.HasSuffix(name, configurationChangeCountMetricName) {
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Expect(*metric.Metric[0].Counter.Value).To(BeNumerically("==", 2))
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continue
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}
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if strings.HasSuffix(name, desiredVersionMetricName) {
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Expect(*metric.Metric[0].Gauge.Value).To(BeNumerically("==", 1))
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Expect(metric.Metric[0].Label).To(HaveLen(1))
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Expect(*metric.Metric[0].Label[0].Name).To(Equal(versionLabel))
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Expect(*metric.Metric[0].Label[0].Value).To(Equal(sevenOneVersion))
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continue
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}
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}
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})
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})
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When("a new configuration change is registered for a different version", func() {
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BeforeEach(func() {
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monitorMetrics.registerConfigurationChange(sevenThreeVersion)
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})
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It("should update the metrics", func() {
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metrics, err := registry.Gather()
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Expect(err).NotTo(HaveOccurred())
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Expect(metrics).To(HaveLen(3))
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for _, metric := range metrics {
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name := pointer.StringDeref(metric.Name, "")
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if strings.HasSuffix(name, desiredVersionMetricName) {
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Expect(metric.Metric).To(HaveLen(2))
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for _, versionMetric := range metric.Metric {
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Expect(versionMetric.Label).To(HaveLen(1))
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Expect(*versionMetric.Label[0].Name).To(Equal(versionLabel))
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expected := 0
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if *versionMetric.Label[0].Value == sevenThreeVersion {
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expected = 1
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}
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Expect(*versionMetric.Gauge.Value).To(BeNumerically("==", expected))
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}
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continue
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}
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Expect(metric.Metric).To(HaveLen(1))
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if strings.HasSuffix(name, configurationChangeCountMetricName) {
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Expect(*metric.Metric[0].Counter.Value).To(BeNumerically("==", 2))
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continue
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}
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}
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})
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})
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})
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When("a process startup registered", func() {
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BeforeEach(func() {
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monitorMetrics.registerProcessStartup(1, sevenOneVersion)
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})
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It("should update the metrics", func() {
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metrics, err := registry.Gather()
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Expect(err).NotTo(HaveOccurred())
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Expect(metrics).To(HaveLen(5))
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for _, metric := range metrics {
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Expect(metric.Metric).To(HaveLen(1))
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name := pointer.StringDeref(metric.Name, "")
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if strings.HasSuffix(name, restartCountMetricName) {
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Expect(*metric.Metric[0].Counter.Value).To(BeNumerically("==", 1))
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Expect(metric.Metric[0].Label).To(HaveLen(1))
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Expect(*metric.Metric[0].Label[0].Name).To(Equal(processLabel))
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Expect(*metric.Metric[0].Label[0].Value).To(Equal("1"))
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continue
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}
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if strings.HasSuffix(name, runningVersionMetricName) {
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Expect(*metric.Metric[0].Gauge.Value).To(BeNumerically("==", 1))
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Expect(metric.Metric[0].Label).To(HaveLen(1))
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Expect(*metric.Metric[0].Label[0].Name).To(Equal(versionLabel))
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Expect(*metric.Metric[0].Label[0].Value).To(Equal(sevenOneVersion))
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continue
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}
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}
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})
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When("the same process is restarted with the same version", func() {
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BeforeEach(func() {
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monitorMetrics.registerProcessStartup(1, sevenOneVersion)
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})
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It("should update the metrics", func() {
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metrics, err := registry.Gather()
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Expect(err).NotTo(HaveOccurred())
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Expect(metrics).To(HaveLen(5))
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for _, metric := range metrics {
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Expect(metric.Metric).To(HaveLen(1))
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name := pointer.StringDeref(metric.Name, "")
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if strings.HasSuffix(name, restartCountMetricName) {
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Expect(*metric.Metric[0].Counter.Value).To(BeNumerically("==", 2))
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Expect(metric.Metric[0].Label).To(HaveLen(1))
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Expect(*metric.Metric[0].Label[0].Name).To(Equal(processLabel))
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Expect(*metric.Metric[0].Label[0].Value).To(Equal("1"))
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continue
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}
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if strings.HasSuffix(name, runningVersionMetricName) {
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Expect(*metric.Metric[0].Gauge.Value).To(BeNumerically("==", 1))
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Expect(metric.Metric[0].Label).To(HaveLen(1))
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Expect(*metric.Metric[0].Label[0].Name).To(Equal(versionLabel))
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Expect(*metric.Metric[0].Label[0].Value).To(Equal(sevenOneVersion))
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continue
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}
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}
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})
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})
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When("the same process is restarted with a different version", func() {
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BeforeEach(func() {
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monitorMetrics.registerProcessStartup(1, sevenThreeVersion)
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})
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It("should update the metrics", func() {
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metrics, err := registry.Gather()
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Expect(err).NotTo(HaveOccurred())
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Expect(metrics).To(HaveLen(5))
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for _, metric := range metrics {
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name := pointer.StringDeref(metric.Name, "")
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if strings.HasSuffix(name, runningVersionMetricName) {
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Expect(metric.Metric).To(HaveLen(2))
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for _, versionMetric := range metric.Metric {
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Expect(versionMetric.Label).To(HaveLen(1))
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Expect(*versionMetric.Label[0].Name).To(Equal(versionLabel))
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expected := 0
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if *versionMetric.Label[0].Value == sevenThreeVersion {
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expected = 1
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}
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Expect(*versionMetric.Gauge.Value).To(BeNumerically("==", expected))
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}
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continue
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}
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Expect(metric.Metric).To(HaveLen(1))
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if strings.HasSuffix(name, restartCountMetricName) {
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Expect(*metric.Metric[0].Counter.Value).To(BeNumerically("==", 2))
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Expect(metric.Metric[0].Label).To(HaveLen(1))
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Expect(*metric.Metric[0].Label[0].Name).To(Equal(processLabel))
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Expect(*metric.Metric[0].Label[0].Value).To(Equal("1"))
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continue
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}
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}
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})
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})
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When("a new process is restarted with a the same version", func() {
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BeforeEach(func() {
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monitorMetrics.registerProcessStartup(2, sevenOneVersion)
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})
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It("should update the metrics", func() {
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metrics, err := registry.Gather()
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Expect(err).NotTo(HaveOccurred())
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Expect(metrics).To(HaveLen(5))
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for _, metric := range metrics {
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name := pointer.StringDeref(metric.Name, "")
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if strings.HasSuffix(name, restartCountMetricName) {
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Expect(metric.Metric).To(HaveLen(2))
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for _, versionMetric := range metric.Metric {
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Expect(versionMetric.Label).To(HaveLen(1))
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Expect(*versionMetric.Label[0].Name).To(Equal(processLabel))
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Expect(*versionMetric.Counter.Value).To(BeNumerically("==", 1))
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}
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continue
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}
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}
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})
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})
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})
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})
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})
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