120 lines
3.4 KiB
Go
120 lines
3.4 KiB
Go
/*
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Copyright 2021 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package metricsutil
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import (
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"testing"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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"k8s.io/metrics/pkg/apis/metrics"
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)
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func getResourceQuantity(t *testing.T, quantityStr string) resource.Quantity {
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t.Helper()
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var err error
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quantity, err := resource.ParseQuantity("0")
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if err != nil {
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t.Errorf("failed when parsing 0 into resource.Quantity")
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}
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if quantityStr != "" {
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quantity, err = resource.ParseQuantity(quantityStr)
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if err != nil {
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t.Errorf("%s is not a valid resource value", quantityStr)
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}
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}
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return quantity
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}
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func addContainerMetricsToPodMetrics(t *testing.T, podMetrics *metrics.PodMetrics, cpuUsage, memUsage string) {
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t.Helper()
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containerMetrics := metrics.ContainerMetrics{
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Usage: corev1.ResourceList{},
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}
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containerMetrics.Usage["cpu"] = getResourceQuantity(t, cpuUsage)
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containerMetrics.Usage["memory"] = getResourceQuantity(t, memUsage)
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podMetrics.Containers = append(podMetrics.Containers, containerMetrics)
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}
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func initResourceAdder() *ResourceAdder {
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resources := []corev1.ResourceName{
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corev1.ResourceCPU,
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corev1.ResourceMemory,
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}
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return NewResourceAdder(resources)
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}
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func TestAddPodMetrics(t *testing.T) {
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resourceAdder := initResourceAdder()
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tests := []struct {
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name string
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cpuUsage string
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memUsage string
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expectedCpuUsage resource.Quantity
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expectedMemUsage resource.Quantity
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}{
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{
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name: "initial value",
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cpuUsage: "0",
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memUsage: "0",
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expectedCpuUsage: getResourceQuantity(t, "0"),
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expectedMemUsage: getResourceQuantity(t, "0"),
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},
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{
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name: "add first container metric",
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cpuUsage: "1m",
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memUsage: "10Mi",
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expectedCpuUsage: getResourceQuantity(t, "1m"),
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expectedMemUsage: getResourceQuantity(t, "10Mi"),
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},
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{
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name: "add second container metric",
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cpuUsage: "5m",
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memUsage: "25Mi",
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expectedCpuUsage: getResourceQuantity(t, "6m"),
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expectedMemUsage: getResourceQuantity(t, "35Mi"),
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},
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{
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name: "add third container zero metric",
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cpuUsage: "0m",
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memUsage: "0Mi",
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expectedCpuUsage: getResourceQuantity(t, "6m"),
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expectedMemUsage: getResourceQuantity(t, "35Mi"),
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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podMetrics := metrics.PodMetrics{}
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addContainerMetricsToPodMetrics(t, &podMetrics, test.cpuUsage, test.memUsage)
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resourceAdder.AddPodMetrics(&podMetrics)
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cpuUsage := resourceAdder.total["cpu"]
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memUsage := resourceAdder.total["memory"]
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if !test.expectedCpuUsage.Equal(cpuUsage) {
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t.Errorf("expecting cpu usage %s but getting %s", test.expectedCpuUsage.String(), cpuUsage.String())
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}
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if !test.expectedMemUsage.Equal(memUsage) {
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t.Errorf("expecting memeory usage %s but getting %s", test.expectedMemUsage.String(), memUsage.String())
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}
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})
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}
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}
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