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