49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
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package main
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import (
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"encoding/json"
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"fmt"
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"github.com/docker/docker/api/types"
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"github.com/go-check/check"
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"strings"
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"time"
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)
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func (s *DockerSuite) TestCliStatsNoStreamGetCpu(c *check.C) {
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out, _ := dockerCmd(c, "run", "-d", "--cpu-quota=2000", "busybox", "/bin/sh", "-c", "while true;do echo 'Hello';done")
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id := strings.TrimSpace(out)
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if err := waitRun(id); err != nil {
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c.Fatal(err)
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}
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ch := make(chan error)
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var v *types.Stats
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go func() {
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_, body, err := sockRequestRaw("GET", fmt.Sprintf("/containers/%s/stats?stream=1", id), nil, "")
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if err != nil {
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ch <- err
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}
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dec := json.NewDecoder(body)
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if err := dec.Decode(&v); err != nil {
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ch <- err
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}
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ch <- nil
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}()
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select {
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case e := <-ch:
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if e == nil {
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var cpuPercent = 0.0
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cpuDelta := float64(v.CpuStats.CpuUsage.TotalUsage - v.PreCpuStats.CpuUsage.TotalUsage)
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systemDelta := float64(v.CpuStats.SystemUsage - v.PreCpuStats.SystemUsage)
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cpuPercent = (cpuDelta / systemDelta) * float64(len(v.CpuStats.CpuUsage.PercpuUsage)) * 100.0
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if cpuPercent < 1.8 || cpuPercent > 2.2 {
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c.Fatal("docker stats with no-stream get cpu usage failed")
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}
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}
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case <-time.After(4 * time.Second):
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c.Fatal("docker stats with no-stream timeout")
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}
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}
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