Merge pull request #35704 from foxish/fix-head-2

vendor/github.com/google/cadvisor/info/v1/test/datagen.go

-// Copyright 2014 Google Inc. All Rights Reserved.
-//
-// 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.
-
-package test
-
-import (
-	"fmt"
-	"math/rand"
-	"time"
-
-	info "github.com/google/cadvisor/info/v1"
-)
-
-func GenerateRandomStats(numStats, numCores int, duration time.Duration) []*info.ContainerStats {
-	ret := make([]*info.ContainerStats, numStats)
-	perCoreUsages := make([]uint64, numCores)
-	currentTime := time.Now()
-	for i := range perCoreUsages {
-		perCoreUsages[i] = uint64(rand.Int63n(1000))
-	}
-	for i := 0; i < numStats; i++ {
-		stats := new(info.ContainerStats)
-		stats.Timestamp = currentTime
-		currentTime = currentTime.Add(duration)
-
-		percore := make([]uint64, numCores)
-		for i := range perCoreUsages {
-			perCoreUsages[i] += uint64(rand.Int63n(1000))
-			percore[i] = perCoreUsages[i]
-			stats.Cpu.Usage.Total += percore[i]
-		}
-		stats.Cpu.Usage.PerCpu = percore
-		stats.Cpu.Usage.User = stats.Cpu.Usage.Total
-		stats.Cpu.Usage.System = 0
-		stats.Memory.Usage = uint64(rand.Int63n(4096))
-		stats.Memory.Cache = uint64(rand.Int63n(4096))
-		stats.Memory.RSS = uint64(rand.Int63n(4096))
-		ret[i] = stats
-	}
-	return ret
-}
-
-func GenerateRandomContainerSpec(numCores int) info.ContainerSpec {
-	ret := info.ContainerSpec{
-		CreationTime: time.Now(),
-		HasCpu:       true,
-		Cpu:          info.CpuSpec{},
-		HasMemory:    true,
-		Memory:       info.MemorySpec{},
-	}
-	ret.Cpu.Limit = uint64(1000 + rand.Int63n(2000))
-	ret.Cpu.MaxLimit = uint64(1000 + rand.Int63n(2000))
-	ret.Cpu.Mask = fmt.Sprintf("0-%d", numCores-1)
-	ret.Memory.Limit = uint64(4096 + rand.Int63n(4096))
-	return ret
-}
-
-func GenerateRandomContainerInfo(containerName string, numCores int, query *info.ContainerInfoRequest, duration time.Duration) *info.ContainerInfo {
-	stats := GenerateRandomStats(query.NumStats, numCores, duration)
-	spec := GenerateRandomContainerSpec(numCores)
-
-	ret := &info.ContainerInfo{
-		ContainerReference: info.ContainerReference{
-			Name: containerName,
-		},
-		Spec:  spec,
-		Stats: stats,
-	}
-	return ret
-}