package docker
import (
"bytes"
"fmt"
"io"
"log"
"net"
"net/url"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"syscall"
"testing"
"time"
"github.com/dotcloud/docker/daemon"
"github.com/dotcloud/docker/engine"
"github.com/dotcloud/docker/image"
"github.com/dotcloud/docker/nat"
"github.com/dotcloud/docker/runconfig"
"github.com/dotcloud/docker/sysinit"
"github.com/dotcloud/docker/utils"
)
const (
unitTestImageName = "docker-test-image"
unitTestImageID = "83599e29c455eb719f77d799bc7c51521b9551972f5a850d7ad265bc1b5292f6" // 1.0
unitTestImageIDShort = "83599e29c455"
unitTestNetworkBridge = "testdockbr0"
unitTestStoreBase = "/var/lib/docker/unit-tests"
testDaemonAddr = "127.0.0.1:4270"
testDaemonProto = "tcp"
testDaemonHttpsProto = "tcp"
testDaemonHttpsAddr = "localhost:4271"
testDaemonRogueHttpsAddr = "localhost:4272"
)
var (
// FIXME: globalDaemon is deprecated by globalEngine. All tests should be converted.
globalDaemon *daemon.Daemon
globalEngine *engine.Engine
globalHttpsEngine *engine.Engine
globalRogueHttpsEngine *engine.Engine
startFds int
startGoroutines int
)
// FIXME: nuke() is deprecated by Daemon.Nuke()
func nuke(daemon *daemon.Daemon) error {
return daemon.Nuke()
}
// FIXME: cleanup and nuke are redundant.
func cleanup(eng *engine.Engine, t *testing.T) error {
daemon := mkDaemonFromEngine(eng, t)
for _, container := range daemon.List() {
container.Kill()
daemon.Destroy(container)
}
job := eng.Job("images")
images, err := job.Stdout.AddTable()
if err != nil {
t.Fatal(err)
}
if err := job.Run(); err != nil {
t.Fatal(err)
}
for _, image := range images.Data {
if image.Get("Id") != unitTestImageID {
eng.Job("image_delete", image.Get("Id")).Run()
}
}
return nil
}
func layerArchive(tarfile string) (io.Reader, error) {
// FIXME: need to close f somewhere
f, err := os.Open(tarfile)
if err != nil {
return nil, err
}
return f, nil
}
func init() {
// Always use the same driver (vfs) for all integration tests.
// To test other drivers, we need a dedicated driver validation suite.
os.Setenv("DOCKER_DRIVER", "vfs")
os.Setenv("TEST", "1")
// Hack to run sys init during unit testing
if selfPath := utils.SelfPath(); strings.Contains(selfPath, ".dockerinit") {
sysinit.SysInit()
return
}
if uid := syscall.Geteuid(); uid != 0 {
log.Fatal("docker tests need to be run as root")
}
// Copy dockerinit into our current testing directory, if provided (so we can test a separate dockerinit binary)
if dockerinit := os.Getenv("TEST_DOCKERINIT_PATH"); dockerinit != "" {
src, err := os.Open(dockerinit)
if err != nil {
log.Fatalf("Unable to open TEST_DOCKERINIT_PATH: %s\n", err)
}
defer src.Close()
dst, err := os.OpenFile(filepath.Join(filepath.Dir(utils.SelfPath()), "dockerinit"), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0555)
if err != nil {
log.Fatalf("Unable to create dockerinit in test directory: %s\n", err)
}
defer dst.Close()
if _, err := io.Copy(dst, src); err != nil {
log.Fatalf("Unable to copy dockerinit to TEST_DOCKERINIT_PATH: %s\n", err)
}
dst.Close()
src.Close()
}
// Setup the base daemon, which will be duplicated for each test.
// (no tests are run directly in the base)
setupBaseImage()
// Create the "global daemon" with a long-running daemons for integration tests
spawnGlobalDaemon()
spawnLegitHttpsDaemon()
spawnRogueHttpsDaemon()
startFds, startGoroutines = utils.GetTotalUsedFds(), runtime.NumGoroutine()
}
func setupBaseImage() {
eng := newTestEngine(log.New(os.Stderr, "", 0), false, unitTestStoreBase)
job := eng.Job("image_inspect", unitTestImageName)
img, _ := job.Stdout.AddEnv()
// If the unit test is not found, try to download it.
if err := job.Run(); err != nil || img.Get("Id") != unitTestImageID {
// Retrieve the Image
job = eng.Job("pull", unitTestImageName)
job.Stdout.Add(utils.NopWriteCloser(os.Stdout))
if err := job.Run(); err != nil {
log.Fatalf("Unable to pull the test image: %s", err)
}
}
}
func spawnGlobalDaemon() {
if globalDaemon != nil {
utils.Debugf("Global daemon already exists. Skipping.")
return
}
t := log.New(os.Stderr, "", 0)
eng := NewTestEngine(t)
globalEngine = eng
globalDaemon = mkDaemonFromEngine(eng, t)
// Spawn a Daemon
go func() {
utils.Debugf("Spawning global daemon for integration tests")
listenURL := &url.URL{
Scheme: testDaemonProto,
Host: testDaemonAddr,
}
job := eng.Job("serveapi", listenURL.String())
job.SetenvBool("Logging", true)
if err := job.Run(); err != nil {
log.Fatalf("Unable to spawn the test daemon: %s", err)
}
}()
// Give some time to ListenAndServer to actually start
// FIXME: use inmem transports instead of tcp
time.Sleep(time.Second)
if err := eng.Job("acceptconnections").Run(); err != nil {
log.Fatalf("Unable to accept connections for test api: %s", err)
}
}
func spawnLegitHttpsDaemon() {
if globalHttpsEngine != nil {
return
}
globalHttpsEngine = spawnHttpsDaemon(testDaemonHttpsAddr, "fixtures/https/ca.pem",
"fixtures/https/server-cert.pem", "fixtures/https/server-key.pem")
}
func spawnRogueHttpsDaemon() {
if globalRogueHttpsEngine != nil {
return
}
globalRogueHttpsEngine = spawnHttpsDaemon(testDaemonRogueHttpsAddr, "fixtures/https/ca.pem",
"fixtures/https/server-rogue-cert.pem", "fixtures/https/server-rogue-key.pem")
}
func spawnHttpsDaemon(addr, cacert, cert, key string) *engine.Engine {
t := log.New(os.Stderr, "", 0)
root, err := newTestDirectory(unitTestStoreBase)
if err != nil {
t.Fatal(err)
}
// FIXME: here we don't use NewTestEngine because it calls initserver with Autorestart=false,
// and we want to set it to true.
eng := newTestEngine(t, true, root)
// Spawn a Daemon
go func() {
utils.Debugf("Spawning https daemon for integration tests")
listenURL := &url.URL{
Scheme: testDaemonHttpsProto,
Host: addr,
}
job := eng.Job("serveapi", listenURL.String())
job.SetenvBool("Logging", true)
job.SetenvBool("Tls", true)
job.SetenvBool("TlsVerify", true)
job.Setenv("TlsCa", cacert)
job.Setenv("TlsCert", cert)
job.Setenv("TlsKey", key)
if err := job.Run(); err != nil {
log.Fatalf("Unable to spawn the test daemon: %s", err)
}
}()
// Give some time to ListenAndServer to actually start
time.Sleep(time.Second)
if err := eng.Job("acceptconnections").Run(); err != nil {
log.Fatalf("Unable to accept connections for test api: %s", err)
}
return eng
}
// FIXME: test that ImagePull(json=true) send correct json output
func GetTestImage(daemon *daemon.Daemon) *image.Image {
imgs, err := daemon.Graph().Map()
if err != nil {
log.Fatalf("Unable to get the test image: %s", err)
}
for _, image := range imgs {
if image.ID == unitTestImageID {
return image
}
}
log.Fatalf("Test image %v not found in %s: %s", unitTestImageID, daemon.Graph().Root, imgs)
return nil
}
func TestDaemonCreate(t *testing.T) {
daemon := mkDaemon(t)
defer nuke(daemon)
// Make sure we start we 0 containers
if len(daemon.List()) != 0 {
t.Errorf("Expected 0 containers, %v found", len(daemon.List()))
}
container, _, err := daemon.Create(&runconfig.Config{
Image: GetTestImage(daemon).ID,
Cmd: []string{"ls", "-al"},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := daemon.Destroy(container); err != nil {
t.Error(err)
}
}()
// Make sure we can find the newly created container with List()
if len(daemon.List()) != 1 {
t.Errorf("Expected 1 container, %v found", len(daemon.List()))
}
// Make sure the container List() returns is the right one
if daemon.List()[0].ID != container.ID {
t.Errorf("Unexpected container %v returned by List", daemon.List()[0])
}
// Make sure we can get the container with Get()
if daemon.Get(container.ID) == nil {
t.Errorf("Unable to get newly created container")
}
// Make sure it is the right container
if daemon.Get(container.ID) != container {
t.Errorf("Get() returned the wrong container")
}
// Make sure Exists returns it as existing
if !daemon.Exists(container.ID) {
t.Errorf("Exists() returned false for a newly created container")
}
// Test that conflict error displays correct details
testContainer, _, _ := daemon.Create(
&runconfig.Config{
Image: GetTestImage(daemon).ID,
Cmd: []string{"ls", "-al"},
},
"conflictname",
)
if _, _, err := daemon.Create(&runconfig.Config{Image: GetTestImage(daemon).ID, Cmd: []string{"ls", "-al"}}, testContainer.Name); err == nil || !strings.Contains(err.Error(), utils.TruncateID(testContainer.ID)) {
t.Fatalf("Name conflict error doesn't include the correct short id. Message was: %s", err.Error())
}
// Make sure create with bad parameters returns an error
if _, _, err = daemon.Create(&runconfig.Config{Image: GetTestImage(daemon).ID}, ""); err == nil {
t.Fatal("Builder.Create should throw an error when Cmd is missing")
}
if _, _, err := daemon.Create(
&runconfig.Config{
Image: GetTestImage(daemon).ID,
Cmd: []string{},
},
"",
); err == nil {
t.Fatal("Builder.Create should throw an error when Cmd is empty")
}
config := &runconfig.Config{
Image: GetTestImage(daemon).ID,
Cmd: []string{"/bin/ls"},
PortSpecs: []string{"80"},
}
container, _, err = daemon.Create(config, "")
_, err = daemon.Commit(container, "testrepo", "testtag", "", "", config)
if err != nil {
t.Error(err)
}
// test expose 80:8000
container, warnings, err := daemon.Create(&runconfig.Config{
Image: GetTestImage(daemon).ID,
Cmd: []string{"ls", "-al"},
PortSpecs: []string{"80:8000"},
},
"",
)
if err != nil {
t.Fatal(err)
}
if warnings == nil || len(warnings) != 1 {
t.Error("Expected a warning, got none")
}
}
func TestDestroy(t *testing.T) {
daemon := mkDaemon(t)
defer nuke(daemon)
container, _, err := daemon.Create(&runconfig.Config{
Image: GetTestImage(daemon).ID,
Cmd: []string{"ls", "-al"},
}, "")
if err != nil {
t.Fatal(err)
}
// Destroy
if err := daemon.Destroy(container); err != nil {
t.Error(err)
}
// Make sure daemon.Exists() behaves correctly
if daemon.Exists("test_destroy") {
t.Errorf("Exists() returned true")
}
// Make sure daemon.List() doesn't list the destroyed container
if len(daemon.List()) != 0 {
t.Errorf("Expected 0 container, %v found", len(daemon.List()))
}
// Make sure daemon.Get() refuses to return the unexisting container
if daemon.Get(container.ID) != nil {
t.Errorf("Unable to get newly created container")
}
// Test double destroy
if err := daemon.Destroy(container); err == nil {
// It should have failed
t.Errorf("Double destroy did not fail")
}
}
func TestGet(t *testing.T) {
daemon := mkDaemon(t)
defer nuke(daemon)
container1, _, _ := mkContainer(daemon, []string{"_", "ls", "-al"}, t)
defer daemon.Destroy(container1)
container2, _, _ := mkContainer(daemon, []string{"_", "ls", "-al"}, t)
defer daemon.Destroy(container2)
container3, _, _ := mkContainer(daemon, []string{"_", "ls", "-al"}, t)
defer daemon.Destroy(container3)
if daemon.Get(container1.ID) != container1 {
t.Errorf("Get(test1) returned %v while expecting %v", daemon.Get(container1.ID), container1)
}
if daemon.Get(container2.ID) != container2 {
t.Errorf("Get(test2) returned %v while expecting %v", daemon.Get(container2.ID), container2)
}
if daemon.Get(container3.ID) != container3 {
t.Errorf("Get(test3) returned %v while expecting %v", daemon.Get(container3.ID), container3)
}
}
func startEchoServerContainer(t *testing.T, proto string) (*daemon.Daemon, *daemon.Container, string) {
var (
err error
id string
outputBuffer = bytes.NewBuffer(nil)
strPort string
eng = NewTestEngine(t)
daemon = mkDaemonFromEngine(eng, t)
port = 5554
p nat.Port
)
defer func() {
if err != nil {
daemon.Nuke()
}
}()
for {
port += 1
strPort = strconv.Itoa(port)
var cmd string
if proto == "tcp" {
cmd = "socat TCP-LISTEN:" + strPort + ",reuseaddr,fork EXEC:/bin/cat"
} else if proto == "udp" {
cmd = "socat UDP-RECVFROM:" + strPort + ",fork EXEC:/bin/cat"
} else {
t.Fatal(fmt.Errorf("Unknown protocol %v", proto))
}
ep := make(map[nat.Port]struct{}, 1)
p = nat.Port(fmt.Sprintf("%s/%s", strPort, proto))
ep[p] = struct{}{}
jobCreate := eng.Job("create")
jobCreate.Setenv("Image", unitTestImageID)
jobCreate.SetenvList("Cmd", []string{"sh", "-c", cmd})
jobCreate.SetenvList("PortSpecs", []string{fmt.Sprintf("%s/%s", strPort, proto)})
jobCreate.SetenvJson("ExposedPorts", ep)
jobCreate.Stdout.Add(outputBuffer)
if err := jobCreate.Run(); err != nil {
t.Fatal(err)
}
id = engine.Tail(outputBuffer, 1)
// FIXME: this relies on the undocumented behavior of daemon.Create
// which will return a nil error AND container if the exposed ports
// are invalid. That behavior should be fixed!
if id != "" {
break
}
t.Logf("Port %v already in use, trying another one", strPort)
}
jobStart := eng.Job("start", id)
portBindings := make(map[nat.Port][]nat.PortBinding)
portBindings[p] = []nat.PortBinding{
{},
}
if err := jobStart.SetenvJson("PortsBindings", portBindings); err != nil {
t.Fatal(err)
}
if err := jobStart.Run(); err != nil {
t.Fatal(err)
}
container := daemon.Get(id)
if container == nil {
t.Fatalf("Couldn't fetch test container %s", id)
}
setTimeout(t, "Waiting for the container to be started timed out", 2*time.Second, func() {
for !container.State.IsRunning() {
time.Sleep(10 * time.Millisecond)
}
})
// Even if the state is running, lets give some time to lxc to spawn the process
container.WaitTimeout(500 * time.Millisecond)
strPort = container.NetworkSettings.Ports[p][0].HostPort
return daemon, container, strPort
}
// Run a container with a TCP port allocated, and test that it can receive connections on localhost
func TestAllocateTCPPortLocalhost(t *testing.T) {
daemon, container, port := startEchoServerContainer(t, "tcp")
defer nuke(daemon)
defer container.Kill()
for i := 0; i != 10; i++ {
conn, err := net.Dial("tcp", fmt.Sprintf("localhost:%v", port))
if err != nil {
t.Fatal(err)
}
defer conn.Close()
input := bytes.NewBufferString("well hello there\n")
_, err = conn.Write(input.Bytes())
if err != nil {
t.Fatal(err)
}
buf := make([]byte, 16)
read := 0
conn.SetReadDeadline(time.Now().Add(3 * time.Second))
read, err = conn.Read(buf)
if err != nil {
if err, ok := err.(*net.OpError); ok {
if err.Err == syscall.ECONNRESET {
t.Logf("Connection reset by the proxy, socat is probably not listening yet, trying again in a sec")
conn.Close()
time.Sleep(time.Second)
continue
}
if err.Timeout() {
t.Log("Timeout, trying again")
conn.Close()
continue
}
}
t.Fatal(err)
}
output := string(buf[:read])
if !strings.Contains(output, "well hello there") {
t.Fatal(fmt.Errorf("[%v] doesn't contain [well hello there]", output))
} else {
return
}
}
t.Fatal("No reply from the container")
}
// Run a container with an UDP port allocated, and test that it can receive connections on localhost
func TestAllocateUDPPortLocalhost(t *testing.T) {
daemon, container, port := startEchoServerContainer(t, "udp")
defer nuke(daemon)
defer container.Kill()
conn, err := net.Dial("udp", fmt.Sprintf("localhost:%v", port))
if err != nil {
t.Fatal(err)
}
defer conn.Close()
input := bytes.NewBufferString("well hello there\n")
buf := make([]byte, 16)
// Try for a minute, for some reason the select in socat may take ages
// to return even though everything on the path seems fine (i.e: the
// UDPProxy forwards the traffic correctly and you can see the packets
// on the interface from within the container).
for i := 0; i != 120; i++ {
_, err := conn.Write(input.Bytes())
if err != nil {
t.Fatal(err)
}
conn.SetReadDeadline(time.Now().Add(500 * time.Millisecond))
read, err := conn.Read(buf)
if err == nil {
output := string(buf[:read])
if strings.Contains(output, "well hello there") {
return
}
}
}
t.Fatal("No reply from the container")
}
func TestRestore(t *testing.T) {
eng := NewTestEngine(t)
daemon1 := mkDaemonFromEngine(eng, t)
defer daemon1.Nuke()
// Create a container with one instance of docker
container1, _, _ := mkContainer(daemon1, []string{"_", "ls", "-al"}, t)
defer daemon1.Destroy(container1)
// Create a second container meant to be killed
container2, _, _ := mkContainer(daemon1, []string{"-i", "_", "/bin/cat"}, t)
defer daemon1.Destroy(container2)
// Start the container non blocking
if err := container2.Start(); err != nil {
t.Fatal(err)
}
if !container2.State.IsRunning() {
t.Fatalf("Container %v should appear as running but isn't", container2.ID)
}
// Simulate a crash/manual quit of dockerd: process dies, states stays 'Running'
cStdin, _ := container2.StdinPipe()
cStdin.Close()
if err := container2.WaitTimeout(2 * time.Second); err != nil {
t.Fatal(err)
}
container2.State.SetRunning(42)
container2.ToDisk()
if len(daemon1.List()) != 2 {
t.Errorf("Expected 2 container, %v found", len(daemon1.List()))
}
if err := container1.Run(); err != nil {
t.Fatal(err)
}
if !container2.State.IsRunning() {
t.Fatalf("Container %v should appear as running but isn't", container2.ID)
}
// Here are are simulating a docker restart - that is, reloading all containers
// from scratch
eng = newTestEngine(t, false, daemon1.Config().Root)
daemon2 := mkDaemonFromEngine(eng, t)
if len(daemon2.List()) != 2 {
t.Errorf("Expected 2 container, %v found", len(daemon2.List()))
}
runningCount := 0
for _, c := range daemon2.List() {
if c.State.IsRunning() {
t.Errorf("Running container found: %v (%v)", c.ID, c.Path)
runningCount++
}
}
if runningCount != 0 {
t.Fatalf("Expected 0 container alive, %d found", runningCount)
}
container3 := daemon2.Get(container1.ID)
if container3 == nil {
t.Fatal("Unable to Get container")
}
if err := container3.Run(); err != nil {
t.Fatal(err)
}
container2.State.SetStopped(0)
}
func TestDefaultContainerName(t *testing.T) {
eng := NewTestEngine(t)
daemon := mkDaemonFromEngine(eng, t)
defer nuke(daemon)
config, _, _, err := runconfig.Parse([]string{unitTestImageID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
container := daemon.Get(createNamedTestContainer(eng, config, t, "some_name"))
containerID := container.ID
if container.Name != "/some_name" {
t.Fatalf("Expect /some_name got %s", container.Name)
}
if c := daemon.Get("/some_name"); c == nil {
t.Fatalf("Couldn't retrieve test container as /some_name")
} else if c.ID != containerID {
t.Fatalf("Container /some_name has ID %s instead of %s", c.ID, containerID)
}
}
func TestRandomContainerName(t *testing.T) {
eng := NewTestEngine(t)
daemon := mkDaemonFromEngine(eng, t)
defer nuke(daemon)
config, _, _, err := runconfig.Parse([]string{GetTestImage(daemon).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
container := daemon.Get(createTestContainer(eng, config, t))
containerID := container.ID
if container.Name == "" {
t.Fatalf("Expected not empty container name")
}
if c := daemon.Get(container.Name); c == nil {
log.Fatalf("Could not lookup container %s by its name", container.Name)
} else if c.ID != containerID {
log.Fatalf("Looking up container name %s returned id %s instead of %s", container.Name, c.ID, containerID)
}
}
func TestContainerNameValidation(t *testing.T) {
eng := NewTestEngine(t)
daemon := mkDaemonFromEngine(eng, t)
defer nuke(daemon)
for _, test := range []struct {
Name string
Valid bool
}{
{"abc-123_AAA.1", true},
{"\000asdf", false},
} {
config, _, _, err := runconfig.Parse([]string{unitTestImageID, "echo test"}, nil)
if err != nil {
if !test.Valid {
continue
}
t.Fatal(err)
}
var outputBuffer = bytes.NewBuffer(nil)
job := eng.Job("create", test.Name)
if err := job.ImportEnv(config); err != nil {
t.Fatal(err)
}
job.Stdout.Add(outputBuffer)
if err := job.Run(); err != nil {
if !test.Valid {
continue
}
t.Fatal(err)
}
container := daemon.Get(engine.Tail(outputBuffer, 1))
if container.Name != "/"+test.Name {
t.Fatalf("Expect /%s got %s", test.Name, container.Name)
}
if c := daemon.Get("/" + test.Name); c == nil {
t.Fatalf("Couldn't retrieve test container as /%s", test.Name)
} else if c.ID != container.ID {
t.Fatalf("Container /%s has ID %s instead of %s", test.Name, c.ID, container.ID)
}
}
}
func TestLinkChildContainer(t *testing.T) {
eng := NewTestEngine(t)
daemon := mkDaemonFromEngine(eng, t)
defer nuke(daemon)
config, _, _, err := runconfig.Parse([]string{unitTestImageID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
container := daemon.Get(createNamedTestContainer(eng, config, t, "/webapp"))
webapp, err := daemon.GetByName("/webapp")
if err != nil {
t.Fatal(err)
}
if webapp.ID != container.ID {
t.Fatalf("Expect webapp id to match container id: %s != %s", webapp.ID, container.ID)
}
config, _, _, err = runconfig.Parse([]string{GetTestImage(daemon).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
childContainer := daemon.Get(createTestContainer(eng, config, t))
if err := daemon.RegisterLink(webapp, childContainer, "db"); err != nil {
t.Fatal(err)
}
// Get the child by it's new name
db, err := daemon.GetByName("/webapp/db")
if err != nil {
t.Fatal(err)
}
if db.ID != childContainer.ID {
t.Fatalf("Expect db id to match container id: %s != %s", db.ID, childContainer.ID)
}
}
func TestGetAllChildren(t *testing.T) {
eng := NewTestEngine(t)
daemon := mkDaemonFromEngine(eng, t)
defer nuke(daemon)
config, _, _, err := runconfig.Parse([]string{unitTestImageID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
container := daemon.Get(createNamedTestContainer(eng, config, t, "/webapp"))
webapp, err := daemon.GetByName("/webapp")
if err != nil {
t.Fatal(err)
}
if webapp.ID != container.ID {
t.Fatalf("Expect webapp id to match container id: %s != %s", webapp.ID, container.ID)
}
config, _, _, err = runconfig.Parse([]string{unitTestImageID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
childContainer := daemon.Get(createTestContainer(eng, config, t))
if err := daemon.RegisterLink(webapp, childContainer, "db"); err != nil {
t.Fatal(err)
}
children, err := daemon.Children("/webapp")
if err != nil {
t.Fatal(err)
}
if children == nil {
t.Fatal("Children should not be nil")
}
if len(children) == 0 {
t.Fatal("Children should not be empty")
}
for key, value := range children {
if key != "/webapp/db" {
t.Fatalf("Expected /webapp/db got %s", key)
}
if value.ID != childContainer.ID {
t.Fatalf("Expected id %s got %s", childContainer.ID, value.ID)
}
}
}
func TestDestroyWithInitLayer(t *testing.T) {
daemon := mkDaemon(t)
defer nuke(daemon)
container, _, err := daemon.Create(&runconfig.Config{
Image: GetTestImage(daemon).ID,
Cmd: []string{"ls", "-al"},
}, "")
if err != nil {
t.Fatal(err)
}
// Destroy
if err := daemon.Destroy(container); err != nil {
t.Fatal(err)
}
// Make sure daemon.Exists() behaves correctly
if daemon.Exists("test_destroy") {
t.Fatalf("Exists() returned true")
}
// Make sure daemon.List() doesn't list the destroyed container
if len(daemon.List()) != 0 {
t.Fatalf("Expected 0 container, %v found", len(daemon.List()))
}
driver := daemon.Graph().Driver()
// Make sure that the container does not exist in the driver
if _, err := driver.Get(container.ID, ""); err == nil {
t.Fatal("Conttainer should not exist in the driver")
}
// Make sure that the init layer is removed from the driver
if _, err := driver.Get(fmt.Sprintf("%s-init", container.ID), ""); err == nil {
t.Fatal("Container's init layer should not exist in the driver")
}
}