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Fix flaky TestEventsContainerFilterBeforeCreate

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Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi 2016-08-25 10:29:10 -07:00
parent dee3044336
commit e372883fcd
1 changed files with 20 additions and 28 deletions
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48
integration-cli/docker_cli_events_unix_test.go
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@ -4,6 +4,7 @@ package main
import (
"bufio"
"bytes"
"fmt"
"io/ioutil"
"os"
@ -140,36 +141,27 @@ func (s *DockerSuite) TestEventsContainerFilterByName(c *check.C) {
// #18453
func (s *DockerSuite) TestEventsContainerFilterBeforeCreate(c *check.C) {
testRequires(c, DaemonIsLinux)
var (
out string
ch chan struct{}
)
ch = make(chan struct{})
buf := &bytes.Buffer{}
cmd := exec.Command(dockerBinary, "events", "-f", "container=foo", "--since=0")
cmd.Stdout = buf
c.Assert(cmd.Start(), check.IsNil)
defer cmd.Wait()
defer cmd.Process.Kill()
// calculate the time it takes to create and start a container and sleep 2 seconds
// this is to make sure the docker event will recevie the event of container
since := daemonTime(c)
id, _ := dockerCmd(c, "run", "-d", "busybox", "top")
// Sleep for a second to make sure we are testing the case where events are listened before container starts.
time.Sleep(time.Second)
id, _ := dockerCmd(c, "run", "--name=foo", "-d", "busybox", "top")
cID := strings.TrimSpace(id)
waitRun(cID)
time.Sleep(2 * time.Second)
duration := daemonTime(c).Sub(since)
go func() {
// start events and wait for future events to
// make sure the new container shows up even when
// the event stream was created before the container.
t := daemonTime(c).Add(2 * duration)
out, _ = dockerCmd(c, "events", "-f", "container=foo", "--since=0", "--until", parseEventTime(t))
close(ch)
}()
// Sleep 2 second to wait docker event to start
time.Sleep(2 * time.Second)
id, _ = dockerCmd(c, "run", "--name=foo", "-d", "busybox", "top")
cID = strings.TrimSpace(id)
waitRun(cID)
<-ch
c.Assert(out, checker.Contains, cID, check.Commentf("Missing event of container (foo)"))
for i := 0; ; i++ {
out := buf.String()
if strings.Contains(out, cID) {
break
}
if i > 30 {
c.Fatalf("Missing event of container (foo, %v), got %q", cID, out)
}
time.Sleep(500 * time.Millisecond)
}
}
func (s *DockerSuite) TestVolumeEvents(c *check.C) {