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package main
import (
"fmt"
"strings"
"testing"
"time"
)
func (s *DockerSuite) BenchmarkLogsCLIRotateFollow(c *testing.B) {
out, _ := dockerCmd(c, "run", "-d", "--log-opt", "max-size=1b", "--log-opt", "max-file=10", "busybox", "sh", "-c", "while true; do usleep 50000; echo hello; done")
id := strings.TrimSpace(out)
ch := make(chan error, 1)
go func() {
ch <- nil
out, _, _ := dockerCmdWithError("logs", "-f", id)
// if this returns at all, it's an error
ch <- fmt.Errorf(out)
}()
<-ch
select {
case <-time.After(30 * time.Second):
// ran for 30 seconds with no problem
return
case err := <-ch:
if err != nil {
c.Fatal(err)
}
}
}
|
