package main
 
 import (

 	"bufio"

 	"encoding/json"

 	"fmt"

 	"io"

 	"io/ioutil"

 	"net/http"

 	"os"

 	"os/exec"
 	"strings"

 	"time"

 	eventtypes "github.com/docker/docker/api/types/events"

 	eventstestutils "github.com/docker/docker/daemon/events/testutils"

 	"github.com/docker/docker/integration-cli/checker"

 	"github.com/docker/docker/integration-cli/request"

 	"github.com/docker/docker/pkg/testutil"
 	icmd "github.com/docker/docker/pkg/testutil/cmd"

 	"github.com/go-check/check"

 )
 

 func (s *DockerSuite) TestEventsTimestampFormats(c *check.C) {

 	name := "events-time-format-test"

 
 	// Start stopwatch, generate an event
 	start := daemonTime(c)

 	time.Sleep(1100 * time.Millisecond) // so that first event occur in different second from since (just for the case)
 	dockerCmd(c, "run", "--rm", "--name", name, "busybox", "true")
 	time.Sleep(1100 * time.Millisecond) // so that until > since

 	end := daemonTime(c)
 
 	// List of available time formats to --since
 	unixTs := func(t time.Time) string { return fmt.Sprintf("%v", t.Unix()) }
 	rfc3339 := func(t time.Time) string { return t.Format(time.RFC3339) }

 	duration := func(t time.Time) string { return time.Now().Sub(t).String() }

 
 	// --since=$start must contain only the 'untag' event

 	for _, f := range []func(time.Time) string{unixTs, rfc3339, duration} {

 		since, until := f(start), f(end)

 		out, _ := dockerCmd(c, "events", "--since="+since, "--until="+until)

 		events := strings.Split(out, "\n")
 		events = events[:len(events)-1]
 
 		nEvents := len(events)
 		c.Assert(nEvents, checker.GreaterOrEqualThan, 5) //Missing expected event
 		containerEvents := eventActionsByIDAndType(c, events, name, "container")
 		c.Assert(containerEvents, checker.HasLen, 5, check.Commentf("events: %v", events))
 
 		c.Assert(containerEvents[0], checker.Equals, "create", check.Commentf(out))
 		c.Assert(containerEvents[1], checker.Equals, "attach", check.Commentf(out))
 		c.Assert(containerEvents[2], checker.Equals, "start", check.Commentf(out))
 		c.Assert(containerEvents[3], checker.Equals, "die", check.Commentf(out))
 		c.Assert(containerEvents[4], checker.Equals, "destroy", check.Commentf(out))

 	}
 }
 

 func (s *DockerSuite) TestEventsUntag(c *check.C) {

 	image := "busybox"

 	dockerCmd(c, "tag", image, "utest:tag1")
 	dockerCmd(c, "tag", image, "utest:tag2")
 	dockerCmd(c, "rmi", "utest:tag1")
 	dockerCmd(c, "rmi", "utest:tag2")

 
 	result := icmd.RunCmd(icmd.Cmd{
 		Command: []string{dockerBinary, "events", "--since=1"},
 		Timeout: time.Millisecond * 2500,
 	})

 	c.Assert(result, icmd.Matches, icmd.Expected{Timeout: true})

 
 	events := strings.Split(result.Stdout(), "\n")

 	nEvents := len(events)

 	// The last element after the split above will be an empty string, so we
 	// get the two elements before the last, which are the untags we're
 	// looking for.

 	for _, v := range events[nEvents-3 : nEvents-1] {

 		c.Assert(v, checker.Contains, "untag", check.Commentf("event should be untag"))

 	}
 }

 func (s *DockerSuite) TestEventsLimit(c *check.C) {

 	// Windows: Limit to 4 goroutines creating containers in order to prevent
 	// timeouts creating so many containers simultaneously. This is a due to
 	// a bug in the Windows platform. It will be fixed in a Windows Update.

 	numContainers := 17

 	numConcurrentContainers := numContainers
 	if testEnv.DaemonPlatform() == "windows" {
 		numConcurrentContainers = 4
 	}
 	sem := make(chan bool, numConcurrentContainers)

 	errChan := make(chan error, numContainers)

 
 	args := []string{"run", "--rm", "busybox", "true"}

 	for i := 0; i < numContainers; i++ {
 		sem <- true

 		go func() {

 			defer func() { <-sem }()

 			out, err := exec.Command(dockerBinary, args...).CombinedOutput()
 			if err != nil {
 				err = fmt.Errorf("%v: %s", err, string(out))
 			}
 			errChan <- err

 		}()

 	}

 	// Wait for all goroutines to finish
 	for i := 0; i < cap(sem); i++ {
 		sem <- true
 	}

 	close(errChan)
 
 	for err := range errChan {

 		c.Assert(err, checker.IsNil, check.Commentf("%q failed with error", strings.Join(args, " ")))

 	}
 

 	out, _ := dockerCmd(c, "events", "--since=0", "--until", daemonUnixTime(c))

 	events := strings.Split(out, "\n")

 	nEvents := len(events) - 1

 	c.Assert(nEvents, checker.Equals, 64, check.Commentf("events should be limited to 64, but received %d", nEvents))

 }

 func (s *DockerSuite) TestEventsContainerEvents(c *check.C) {

 	dockerCmd(c, "run", "--rm", "--name", "container-events-test", "busybox", "true")

 	out, _ := dockerCmd(c, "events", "--until", daemonUnixTime(c))

 	events := strings.Split(out, "\n")
 	events = events[:len(events)-1]
 

 	nEvents := len(events)
 	c.Assert(nEvents, checker.GreaterOrEqualThan, 5) //Missing expected event
 	containerEvents := eventActionsByIDAndType(c, events, "container-events-test", "container")
 	c.Assert(containerEvents, checker.HasLen, 5, check.Commentf("events: %v", events))
 
 	c.Assert(containerEvents[0], checker.Equals, "create", check.Commentf(out))
 	c.Assert(containerEvents[1], checker.Equals, "attach", check.Commentf(out))
 	c.Assert(containerEvents[2], checker.Equals, "start", check.Commentf(out))
 	c.Assert(containerEvents[3], checker.Equals, "die", check.Commentf(out))
 	c.Assert(containerEvents[4], checker.Equals, "destroy", check.Commentf(out))

 }

 func (s *DockerSuite) TestEventsContainerEventsAttrSort(c *check.C) {

 	since := daemonUnixTime(c)
 	dockerCmd(c, "run", "--rm", "--name", "container-events-test", "busybox", "true")

 	out, _ := dockerCmd(c, "events", "--filter", "container=container-events-test", "--since", since, "--until", daemonUnixTime(c))

 	events := strings.Split(out, "\n")
 
 	nEvents := len(events)
 	c.Assert(nEvents, checker.GreaterOrEqualThan, 3) //Missing expected event
 	matchedEvents := 0
 	for _, event := range events {

 		matches := eventstestutils.ScanMap(event)

 		if matches["eventType"] == "container" && matches["action"] == "create" {
 			matchedEvents++
 			c.Assert(out, checker.Contains, "(image=busybox, name=container-events-test)", check.Commentf("Event attributes not sorted"))
 		} else if matches["eventType"] == "container" && matches["action"] == "start" {
 			matchedEvents++
 			c.Assert(out, checker.Contains, "(image=busybox, name=container-events-test)", check.Commentf("Event attributes not sorted"))
 		}
 	}

 	c.Assert(matchedEvents, checker.Equals, 2, check.Commentf("missing events for container container-events-test:\n%s", out))

 }
 

 func (s *DockerSuite) TestEventsContainerEventsSinceUnixEpoch(c *check.C) {

 	dockerCmd(c, "run", "--rm", "--name", "since-epoch-test", "busybox", "true")

 	timeBeginning := time.Unix(0, 0).Format(time.RFC3339Nano)
 	timeBeginning = strings.Replace(timeBeginning, "Z", ".000000000Z", -1)

 	out, _ := dockerCmd(c, "events", "--since", timeBeginning, "--until", daemonUnixTime(c))

 	events := strings.Split(out, "\n")
 	events = events[:len(events)-1]
 

 	nEvents := len(events)
 	c.Assert(nEvents, checker.GreaterOrEqualThan, 5) //Missing expected event
 	containerEvents := eventActionsByIDAndType(c, events, "since-epoch-test", "container")
 	c.Assert(containerEvents, checker.HasLen, 5, check.Commentf("events: %v", events))
 
 	c.Assert(containerEvents[0], checker.Equals, "create", check.Commentf(out))
 	c.Assert(containerEvents[1], checker.Equals, "attach", check.Commentf(out))
 	c.Assert(containerEvents[2], checker.Equals, "start", check.Commentf(out))
 	c.Assert(containerEvents[3], checker.Equals, "die", check.Commentf(out))
 	c.Assert(containerEvents[4], checker.Equals, "destroy", check.Commentf(out))

 }
 

 func (s *DockerSuite) TestEventsImageTag(c *check.C) {

 	time.Sleep(1 * time.Second) // because API has seconds granularity

 	since := daemonUnixTime(c)

 	image := "testimageevents:tag"
 	dockerCmd(c, "tag", "busybox", image)
 

 	out, _ := dockerCmd(c, "events",

 		"--since", since, "--until", daemonUnixTime(c))

 
 	events := strings.Split(strings.TrimSpace(out), "\n")

 	c.Assert(events, checker.HasLen, 1, check.Commentf("was expecting 1 event. out=%s", out))

 	event := strings.TrimSpace(events[0])
 

 	matches := eventstestutils.ScanMap(event)

 	c.Assert(matchEventID(matches, image), checker.True, check.Commentf("matches: %v\nout:\n%s", matches, out))
 	c.Assert(matches["action"], checker.Equals, "tag")

 }
 

 func (s *DockerSuite) TestEventsImagePull(c *check.C) {

 	// TODO Windows: Enable this test once pull and reliable image names are available

 	testRequires(c, DaemonIsLinux)

 	since := daemonUnixTime(c)

 	testRequires(c, Network)

 	dockerCmd(c, "pull", "hello-world")

 	out, _ := dockerCmd(c, "events",

 		"--since", since, "--until", daemonUnixTime(c))

 
 	events := strings.Split(strings.TrimSpace(out), "\n")
 	event := strings.TrimSpace(events[len(events)-1])

 	matches := eventstestutils.ScanMap(event)

 	c.Assert(matches["id"], checker.Equals, "hello-world:latest")
 	c.Assert(matches["action"], checker.Equals, "pull")

 
 }
 

 func (s *DockerSuite) TestEventsImageImport(c *check.C) {

 	// TODO Windows CI. This should be portable once export/import are
 	// more reliable (@swernli)

 	testRequires(c, DaemonIsLinux)

 	out, _ := dockerCmd(c, "run", "-d", "busybox", "true")

 	cleanedContainerID := strings.TrimSpace(out)

 	since := daemonUnixTime(c)

 	out, _, err := testutil.RunCommandPipelineWithOutput(

 		exec.Command(dockerBinary, "export", cleanedContainerID),
 		exec.Command(dockerBinary, "import", "-"),
 	)

 	c.Assert(err, checker.IsNil, check.Commentf("import failed with output: %q", out))

 	imageRef := strings.TrimSpace(out)
 

 	out, _ = dockerCmd(c, "events", "--since", since, "--until", daemonUnixTime(c), "--filter", "event=import")

 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(events, checker.HasLen, 1)

 	matches := eventstestutils.ScanMap(events[0])

 	c.Assert(matches["id"], checker.Equals, imageRef, check.Commentf("matches: %v\nout:\n%s\n", matches, out))
 	c.Assert(matches["action"], checker.Equals, "import", check.Commentf("matches: %v\nout:\n%s\n", matches, out))

 }
 
 func (s *DockerSuite) TestEventsImageLoad(c *check.C) {
 	testRequires(c, DaemonIsLinux)
 	myImageName := "footest:v1"
 	dockerCmd(c, "tag", "busybox", myImageName)
 	since := daemonUnixTime(c)
 
 	out, _ := dockerCmd(c, "images", "-q", "--no-trunc", myImageName)
 	longImageID := strings.TrimSpace(out)
 	c.Assert(longImageID, checker.Not(check.Equals), "", check.Commentf("Id should not be empty"))
 
 	dockerCmd(c, "save", "-o", "saveimg.tar", myImageName)
 	dockerCmd(c, "rmi", myImageName)
 	out, _ = dockerCmd(c, "images", "-q", myImageName)
 	noImageID := strings.TrimSpace(out)
 	c.Assert(noImageID, checker.Equals, "", check.Commentf("Should not have any image"))
 	dockerCmd(c, "load", "-i", "saveimg.tar")
 

 	result := icmd.RunCommand("rm", "-rf", "saveimg.tar")

 	c.Assert(result, icmd.Matches, icmd.Success)

 
 	out, _ = dockerCmd(c, "images", "-q", "--no-trunc", myImageName)
 	imageID := strings.TrimSpace(out)
 	c.Assert(imageID, checker.Equals, longImageID, check.Commentf("Should have same image id as before"))
 
 	out, _ = dockerCmd(c, "events", "--since", since, "--until", daemonUnixTime(c), "--filter", "event=load")
 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(events, checker.HasLen, 1)
 	matches := eventstestutils.ScanMap(events[0])
 	c.Assert(matches["id"], checker.Equals, imageID, check.Commentf("matches: %v\nout:\n%s\n", matches, out))
 	c.Assert(matches["action"], checker.Equals, "load", check.Commentf("matches: %v\nout:\n%s\n", matches, out))
 
 	out, _ = dockerCmd(c, "events", "--since", since, "--until", daemonUnixTime(c), "--filter", "event=save")
 	events = strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(events, checker.HasLen, 1)
 	matches = eventstestutils.ScanMap(events[0])
 	c.Assert(matches["id"], checker.Equals, imageID, check.Commentf("matches: %v\nout:\n%s\n", matches, out))
 	c.Assert(matches["action"], checker.Equals, "save", check.Commentf("matches: %v\nout:\n%s\n", matches, out))

 }

 func (s *DockerSuite) TestEventsPluginOps(c *check.C) {

 	testRequires(c, DaemonIsLinux, IsAmd64, Network)

 
 	since := daemonUnixTime(c)
 

 	dockerCmd(c, "plugin", "install", pNameWithTag, "--grant-all-permissions")
 	dockerCmd(c, "plugin", "disable", pNameWithTag)
 	dockerCmd(c, "plugin", "remove", pNameWithTag)

 
 	out, _ := dockerCmd(c, "events", "--since", since, "--until", daemonUnixTime(c))
 	events := strings.Split(out, "\n")
 	events = events[:len(events)-1]
 
 	nEvents := len(events)
 	c.Assert(nEvents, checker.GreaterOrEqualThan, 4)
 

 	pluginEvents := eventActionsByIDAndType(c, events, pNameWithTag, "plugin")

 	c.Assert(pluginEvents, checker.HasLen, 4, check.Commentf("events: %v", events))
 
 	c.Assert(pluginEvents[0], checker.Equals, "pull", check.Commentf(out))
 	c.Assert(pluginEvents[1], checker.Equals, "enable", check.Commentf(out))
 	c.Assert(pluginEvents[2], checker.Equals, "disable", check.Commentf(out))
 	c.Assert(pluginEvents[3], checker.Equals, "remove", check.Commentf(out))
 }
 

 func (s *DockerSuite) TestEventsFilters(c *check.C) {

 	since := daemonUnixTime(c)

 	dockerCmd(c, "run", "--rm", "busybox", "true")
 	dockerCmd(c, "run", "--rm", "busybox", "true")

 	out, _ := dockerCmd(c, "events", "--since", since, "--until", daemonUnixTime(c), "--filter", "event=die")

 	parseEvents(c, out, "die")

 	out, _ = dockerCmd(c, "events", "--since", since, "--until", daemonUnixTime(c), "--filter", "event=die", "--filter", "event=start")

 	parseEvents(c, out, "die|start")

 
 	// make sure we at least got 2 start events
 	count := strings.Count(out, "start")

 	c.Assert(strings.Count(out, "start"), checker.GreaterOrEqualThan, 2, check.Commentf("should have had 2 start events but had %d, out: %s", count, out))

 
 }

 func (s *DockerSuite) TestEventsFilterImageName(c *check.C) {

 	since := daemonUnixTime(c)

 	out, _ := dockerCmd(c, "run", "--name", "container_1", "-d", "busybox:latest", "true")

 	container1 := strings.TrimSpace(out)

 	out, _ = dockerCmd(c, "run", "--name", "container_2", "-d", "busybox", "true")

 	container2 := strings.TrimSpace(out)

 	name := "busybox"

 	out, _ = dockerCmd(c, "events", "--since", since, "--until", daemonUnixTime(c), "--filter", fmt.Sprintf("image=%s", name))

 	events := strings.Split(out, "\n")
 	events = events[:len(events)-1]

 	c.Assert(events, checker.Not(checker.HasLen), 0) //Expected events but found none for the image busybox:latest

 	count1 := 0
 	count2 := 0
 
 	for _, e := range events {
 		if strings.Contains(e, container1) {
 			count1++
 		} else if strings.Contains(e, container2) {
 			count2++

 		}
 	}

 	c.Assert(count1, checker.Not(checker.Equals), 0, check.Commentf("Expected event from container but got %d from %s", count1, container1))
 	c.Assert(count2, checker.Not(checker.Equals), 0, check.Commentf("Expected event from container but got %d from %s", count2, container2))

 }
 

 func (s *DockerSuite) TestEventsFilterLabels(c *check.C) {

 	since := daemonUnixTime(c)

 	label := "io.docker.testing=foo"
 
 	out, _ := dockerCmd(c, "run", "-d", "-l", label, "busybox:latest", "true")
 	container1 := strings.TrimSpace(out)
 
 	out, _ = dockerCmd(c, "run", "-d", "busybox", "true")
 	container2 := strings.TrimSpace(out)
 
 	out, _ = dockerCmd(
 		c,
 		"events",

 		"--since", since,
 		"--until", daemonUnixTime(c),

 		"--filter", fmt.Sprintf("label=%s", label))
 
 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(len(events), checker.Equals, 3)
 
 	for _, e := range events {
 		c.Assert(e, checker.Contains, container1)

 		c.Assert(e, checker.Not(checker.Contains), container2)

 	}
 }
 
 func (s *DockerSuite) TestEventsFilterImageLabels(c *check.C) {

 	since := daemonUnixTime(c)

 	name := "labelfiltertest"

 	label := "io.docker.testing=image"
 
 	// Build a test image.

 	buildImageSuccessfully(c, name, withDockerfile(fmt.Sprintf(`

 		FROM busybox:latest

 		LABEL %s`, label)))

 	dockerCmd(c, "tag", name, "labelfiltertest:tag1")
 	dockerCmd(c, "tag", name, "labelfiltertest:tag2")
 	dockerCmd(c, "tag", "busybox:latest", "labelfiltertest:tag3")
 
 	out, _ := dockerCmd(
 		c,
 		"events",

 		"--since", since,
 		"--until", daemonUnixTime(c),

 		"--filter", fmt.Sprintf("label=%s", label),
 		"--filter", "type=image")

 
 	events := strings.Split(strings.TrimSpace(out), "\n")

 
 	// 2 events from the "docker tag" command, another one is from "docker build"

 	c.Assert(events, checker.HasLen, 3, check.Commentf("Events == %s", events))

 	for _, e := range events {
 		c.Assert(e, checker.Contains, "labelfiltertest")
 	}
 }
 

 func (s *DockerSuite) TestEventsFilterContainer(c *check.C) {

 	since := daemonUnixTime(c)

 	nameID := make(map[string]string)

 	for _, name := range []string{"container_1", "container_2"} {

 		dockerCmd(c, "run", "--name", name, "busybox", "true")

 		id := inspectField(c, name, "Id")

 		nameID[name] = id

 	}
 

 	until := daemonUnixTime(c)

 	checkEvents := func(id string, events []string) error {

 		if len(events) != 4 { // create, attach, start, die

 			return fmt.Errorf("expected 4 events, got %v", events)

 		}
 		for _, event := range events {

 			matches := eventstestutils.ScanMap(event)

 			if !matchEventID(matches, id) {
 				return fmt.Errorf("expected event for container id %s: %s - parsed container id: %s", id, event, matches["id"])

 			}
 		}
 		return nil

 	}
 

 	for name, ID := range nameID {
 		// filter by names

 		out, _ := dockerCmd(c, "events", "--since", since, "--until", until, "--filter", "container="+name)

 		events := strings.Split(strings.TrimSuffix(out, "\n"), "\n")

 		c.Assert(checkEvents(ID, events), checker.IsNil)

 		// filter by ID's

 		out, _ = dockerCmd(c, "events", "--since", since, "--until", until, "--filter", "container="+ID)

 		events = strings.Split(strings.TrimSuffix(out, "\n"), "\n")

 		c.Assert(checkEvents(ID, events), checker.IsNil)

 	}
 }

 func (s *DockerSuite) TestEventsCommit(c *check.C) {

 	// Problematic on Windows as cannot commit a running container

 	testRequires(c, DaemonIsLinux)

 	out, _ := runSleepingContainer(c)

 	cID := strings.TrimSpace(out)

 	c.Assert(waitRun(cID), checker.IsNil)

 	dockerCmd(c, "commit", "-m", "test", cID)
 	dockerCmd(c, "stop", cID)

 	c.Assert(waitExited(cID, 5*time.Second), checker.IsNil)

 	until := daemonUnixTime(c)
 	out, _ = dockerCmd(c, "events", "-f", "container="+cID, "--until="+until)

 	c.Assert(out, checker.Contains, "commit", check.Commentf("Missing 'commit' log event"))

 }
 
 func (s *DockerSuite) TestEventsCopy(c *check.C) {

 	// Build a test image.

 	buildImageSuccessfully(c, "cpimg", withDockerfile(`

 		  FROM busybox

 		  RUN echo HI > /file`))
 	id := getIDByName(c, "cpimg")

 	// Create an empty test file.
 	tempFile, err := ioutil.TempFile("", "test-events-copy-")

 	c.Assert(err, checker.IsNil)

 	defer os.Remove(tempFile.Name())
 

 	c.Assert(tempFile.Close(), checker.IsNil)

 
 	dockerCmd(c, "create", "--name=cptest", id)
 

 	dockerCmd(c, "cp", "cptest:/file", tempFile.Name())

 	until := daemonUnixTime(c)
 	out, _ := dockerCmd(c, "events", "--since=0", "-f", "container=cptest", "--until="+until)

 	c.Assert(out, checker.Contains, "archive-path", check.Commentf("Missing 'archive-path' log event\n"))

 	dockerCmd(c, "cp", tempFile.Name(), "cptest:/filecopy")

 	until = daemonUnixTime(c)
 	out, _ = dockerCmd(c, "events", "-f", "container=cptest", "--until="+until)

 	c.Assert(out, checker.Contains, "extract-to-dir", check.Commentf("Missing 'extract-to-dir' log event"))

 }
 
 func (s *DockerSuite) TestEventsResize(c *check.C) {

 	out, _ := runSleepingContainer(c, "-d")

 	cID := strings.TrimSpace(out)

 	c.Assert(waitRun(cID), checker.IsNil)

 
 	endpoint := "/containers/" + cID + "/resize?h=80&w=24"

 	status, _, err := request.SockRequest("POST", endpoint, nil, daemonHost())

 	c.Assert(status, checker.Equals, http.StatusOK)
 	c.Assert(err, checker.IsNil)

 	dockerCmd(c, "stop", cID)

 	until := daemonUnixTime(c)
 	out, _ = dockerCmd(c, "events", "-f", "container="+cID, "--until="+until)

 	c.Assert(out, checker.Contains, "resize", check.Commentf("Missing 'resize' log event"))

 }
 
 func (s *DockerSuite) TestEventsAttach(c *check.C) {

 	// TODO Windows CI: Figure out why this test fails intermittently (TP5).

 	testRequires(c, DaemonIsLinux)

 	out, _ := dockerCmd(c, "run", "-di", "busybox", "cat")

 	cID := strings.TrimSpace(out)

 	c.Assert(waitRun(cID), checker.IsNil)

 
 	cmd := exec.Command(dockerBinary, "attach", cID)
 	stdin, err := cmd.StdinPipe()

 	c.Assert(err, checker.IsNil)

 	defer stdin.Close()
 	stdout, err := cmd.StdoutPipe()

 	c.Assert(err, checker.IsNil)

 	defer stdout.Close()

 	c.Assert(cmd.Start(), checker.IsNil)

 	defer cmd.Process.Kill()
 
 	// Make sure we're done attaching by writing/reading some stuff

 	_, err = stdin.Write([]byte("hello\n"))
 	c.Assert(err, checker.IsNil)

 	out, err = bufio.NewReader(stdout).ReadString('\n')

 	c.Assert(err, checker.IsNil)
 	c.Assert(strings.TrimSpace(out), checker.Equals, "hello", check.Commentf("expected 'hello'"))

 	c.Assert(stdin.Close(), checker.IsNil)

 	dockerCmd(c, "kill", cID)

 	c.Assert(waitExited(cID, 5*time.Second), checker.IsNil)

 	until := daemonUnixTime(c)
 	out, _ = dockerCmd(c, "events", "-f", "container="+cID, "--until="+until)

 	c.Assert(out, checker.Contains, "attach", check.Commentf("Missing 'attach' log event"))

 }
 
 func (s *DockerSuite) TestEventsRename(c *check.C) {

 	out, _ := dockerCmd(c, "run", "--name", "oldName", "busybox", "true")
 	cID := strings.TrimSpace(out)

 	dockerCmd(c, "rename", "oldName", "newName")

 	until := daemonUnixTime(c)
 	// filter by the container id because the name in the event will be the new name.
 	out, _ = dockerCmd(c, "events", "-f", "container="+cID, "--until", until)

 	c.Assert(out, checker.Contains, "rename", check.Commentf("Missing 'rename' log event\n"))

 }
 
 func (s *DockerSuite) TestEventsTop(c *check.C) {

 	// Problematic on Windows as Windows does not support top

 	testRequires(c, DaemonIsLinux)

 	out, _ := runSleepingContainer(c, "-d")

 	cID := strings.TrimSpace(out)

 	c.Assert(waitRun(cID), checker.IsNil)

 	dockerCmd(c, "top", cID)
 	dockerCmd(c, "stop", cID)

 	until := daemonUnixTime(c)
 	out, _ = dockerCmd(c, "events", "-f", "container="+cID, "--until="+until)

 	c.Assert(out, checker.Contains, " top", check.Commentf("Missing 'top' log event"))

 }

 // #14316
 func (s *DockerRegistrySuite) TestEventsImageFilterPush(c *check.C) {

 	// Problematic to port for Windows CI during TP5 timeframe until
 	// supporting push

 	testRequires(c, DaemonIsLinux)

 	testRequires(c, Network)
 	repoName := fmt.Sprintf("%v/dockercli/testf", privateRegistryURL)
 

 	out, _ := dockerCmd(c, "run", "-d", "busybox", "top")

 	cID := strings.TrimSpace(out)

 	c.Assert(waitRun(cID), checker.IsNil)

 
 	dockerCmd(c, "commit", cID, repoName)
 	dockerCmd(c, "stop", cID)
 	dockerCmd(c, "push", repoName)
 

 	until := daemonUnixTime(c)
 	out, _ = dockerCmd(c, "events", "-f", "image="+repoName, "-f", "event=push", "--until", until)

 	c.Assert(out, checker.Contains, repoName, check.Commentf("Missing 'push' log event for %s", repoName))

 }

 
 func (s *DockerSuite) TestEventsFilterType(c *check.C) {

 	since := daemonUnixTime(c)

 	name := "labelfiltertest"
 	label := "io.docker.testing=image"
 
 	// Build a test image.

 	buildImageSuccessfully(c, name, withDockerfile(fmt.Sprintf(`

 		FROM busybox:latest

 		LABEL %s`, label)))

 	dockerCmd(c, "tag", name, "labelfiltertest:tag1")
 	dockerCmd(c, "tag", name, "labelfiltertest:tag2")
 	dockerCmd(c, "tag", "busybox:latest", "labelfiltertest:tag3")
 
 	out, _ := dockerCmd(
 		c,
 		"events",

 		"--since", since,
 		"--until", daemonUnixTime(c),

 		"--filter", fmt.Sprintf("label=%s", label),
 		"--filter", "type=image")
 
 	events := strings.Split(strings.TrimSpace(out), "\n")
 
 	// 2 events from the "docker tag" command, another one is from "docker build"
 	c.Assert(events, checker.HasLen, 3, check.Commentf("Events == %s", events))
 	for _, e := range events {
 		c.Assert(e, checker.Contains, "labelfiltertest")
 	}
 
 	out, _ = dockerCmd(
 		c,
 		"events",

 		"--since", since,
 		"--until", daemonUnixTime(c),

 		"--filter", fmt.Sprintf("label=%s", label),
 		"--filter", "type=container")
 	events = strings.Split(strings.TrimSpace(out), "\n")
 
 	// Events generated by the container that builds the image
 	c.Assert(events, checker.HasLen, 3, check.Commentf("Events == %s", events))
 
 	out, _ = dockerCmd(
 		c,
 		"events",

 		"--since", since,
 		"--until", daemonUnixTime(c),

 		"--filter", "type=network")
 	events = strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(len(events), checker.GreaterOrEqualThan, 1, check.Commentf("Events == %s", events))
 }
 

 // #25798
 func (s *DockerSuite) TestEventsSpecialFiltersWithExecCreate(c *check.C) {
 	since := daemonUnixTime(c)
 	runSleepingContainer(c, "--name", "test-container", "-d")
 	waitRun("test-container")
 
 	dockerCmd(c, "exec", "test-container", "echo", "hello-world")
 
 	out, _ := dockerCmd(
 		c,
 		"events",
 		"--since", since,
 		"--until", daemonUnixTime(c),
 		"--filter",
 		"event='exec_create: echo hello-world'",
 	)
 
 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(len(events), checker.Equals, 1, check.Commentf(out))
 
 	out, _ = dockerCmd(
 		c,
 		"events",
 		"--since", since,
 		"--until", daemonUnixTime(c),
 		"--filter",
 		"event=exec_create",
 	)
 	c.Assert(len(events), checker.Equals, 1, check.Commentf(out))
 }
 

 func (s *DockerSuite) TestEventsFilterImageInContainerAction(c *check.C) {

 	since := daemonUnixTime(c)

 	dockerCmd(c, "run", "--name", "test-container", "-d", "busybox", "true")
 	waitRun("test-container")
 

 	out, _ := dockerCmd(c, "events", "--filter", "image=busybox", "--since", since, "--until", daemonUnixTime(c))

 	events := strings.Split(strings.TrimSpace(out), "\n")
 	c.Assert(len(events), checker.GreaterThan, 1, check.Commentf(out))
 }

 
 func (s *DockerSuite) TestEventsContainerRestart(c *check.C) {
 	dockerCmd(c, "run", "-d", "--name=testEvent", "--restart=on-failure:3", "busybox", "false")
 
 	// wait until test2 is auto removed.
 	waitTime := 10 * time.Second

 	if testEnv.DaemonPlatform() == "windows" {

 		// Windows takes longer...

 		waitTime = 90 * time.Second
 	}
 
 	err := waitInspect("testEvent", "{{ .State.Restarting }} {{ .State.Running }}", "false false", waitTime)
 	c.Assert(err, checker.IsNil)
 
 	var (
 		createCount int
 		startCount  int
 		dieCount    int
 	)

 	out, _ := dockerCmd(c, "events", "--since=0", "--until", daemonUnixTime(c), "-f", "container=testEvent")

 	events := strings.Split(strings.TrimSpace(out), "\n")
 
 	nEvents := len(events)
 	c.Assert(nEvents, checker.GreaterOrEqualThan, 1) //Missing expected event
 	actions := eventActionsByIDAndType(c, events, "testEvent", "container")
 
 	for _, a := range actions {
 		switch a {
 		case "create":
 			createCount++
 		case "start":
 			startCount++
 		case "die":
 			dieCount++
 		}
 	}
 	c.Assert(createCount, checker.Equals, 1, check.Commentf("testEvent should be created 1 times: %v", actions))
 	c.Assert(startCount, checker.Equals, 4, check.Commentf("testEvent should start 4 times: %v", actions))
 	c.Assert(dieCount, checker.Equals, 4, check.Commentf("testEvent should die 4 times: %v", actions))

 }
 
 func (s *DockerSuite) TestEventsSinceInTheFuture(c *check.C) {
 	dockerCmd(c, "run", "--name", "test-container", "-d", "busybox", "true")
 	waitRun("test-container")
 
 	since := daemonTime(c)
 	until := since.Add(time.Duration(-24) * time.Hour)
 	out, _, err := dockerCmdWithError("events", "--filter", "image=busybox", "--since", parseEventTime(since), "--until", parseEventTime(until))
 
 	c.Assert(err, checker.NotNil)
 	c.Assert(out, checker.Contains, "cannot be after `until`")
 }
 
 func (s *DockerSuite) TestEventsUntilInThePast(c *check.C) {
 	since := daemonUnixTime(c)
 
 	dockerCmd(c, "run", "--name", "test-container", "-d", "busybox", "true")
 	waitRun("test-container")
 
 	until := daemonUnixTime(c)
 
 	dockerCmd(c, "run", "--name", "test-container2", "-d", "busybox", "true")
 	waitRun("test-container2")
 
 	out, _ := dockerCmd(c, "events", "--filter", "image=busybox", "--since", since, "--until", until)

 	c.Assert(out, checker.Not(checker.Contains), "test-container2")
 	c.Assert(out, checker.Contains, "test-container")

 }

 
 func (s *DockerSuite) TestEventsFormat(c *check.C) {
 	since := daemonUnixTime(c)
 	dockerCmd(c, "run", "--rm", "busybox", "true")
 	dockerCmd(c, "run", "--rm", "busybox", "true")
 	out, _ := dockerCmd(c, "events", "--since", since, "--until", daemonUnixTime(c), "--format", "{{json .}}")
 	dec := json.NewDecoder(strings.NewReader(out))
 	// make sure we got 2 start events
 	startCount := 0
 	for {
 		var err error
 		var ev eventtypes.Message
 		if err = dec.Decode(&ev); err == io.EOF {
 			break
 		}
 		c.Assert(err, checker.IsNil)
 		if ev.Status == "start" {
 			startCount++
 		}
 	}
 
 	c.Assert(startCount, checker.Equals, 2, check.Commentf("should have had 2 start events but had %d, out: %s", startCount, out))
 }
 
 func (s *DockerSuite) TestEventsFormatBadFunc(c *check.C) {
 	// make sure it fails immediately, without receiving any event
 	result := dockerCmdWithResult("events", "--format", "{{badFuncString .}}")
 	c.Assert(result, icmd.Matches, icmd.Expected{
 		Error:    "exit status 64",
 		ExitCode: 64,
 		Err:      "Error parsing format: template: :1: function \"badFuncString\" not defined",
 	})
 }
 
 func (s *DockerSuite) TestEventsFormatBadField(c *check.C) {
 	// make sure it fails immediately, without receiving any event
 	result := dockerCmdWithResult("events", "--format", "{{.badFieldString}}")
 	c.Assert(result, icmd.Matches, icmd.Expected{
 		Error:    "exit status 64",
 		ExitCode: 64,
 		Err:      "Error parsing format: template: :1:2: executing \"\" at <.badFieldString>: can't evaluate field badFieldString in type *events.Message",
 	})
 }