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docker_cli_create_test.go

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package main

import (

"encoding/json"

"os"

"os/exec"

"reflect"

"testing"

"time"

"github.com/docker/docker/nat"

)

// Make sure we can create a simple container with some args

func TestCreateArgs(t *testing.T) {

defer deleteAllContainers()

runCmd := exec.Command(dockerBinary, "create", "busybox", "command", "arg1", "arg2", "arg with space")

out, _, _, err := runCommandWithStdoutStderr(runCmd)

if err != nil {

t.Fatal(out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

inspectCmd := exec.Command(dockerBinary, "inspect", cleanedContainerID)

out, _, err = runCommandWithOutput(inspectCmd)

if err != nil {

t.Fatalf("out should've been a container id: %s, %v", out, err)

}

containers := []struct {

ID string

Created time.Time

Path string

Args []string

Image string

}{}

if err := json.Unmarshal([]byte(out), &containers); err != nil {

t.Fatalf("Error inspecting the container: %s", err)

}

if len(containers) != 1 {

t.Fatalf("Unexpected container count. Expected 0, received: %d", len(containers))

}

c := containers[0]

if c.Path != "command" {

t.Fatalf("Unexpected container path. Expected command, received: %s", c.Path)

}

b := false

expected := []string{"arg1", "arg2", "arg with space"}

for i, arg := range expected {

if arg != c.Args[i] {

b = true

break

}

}

if len(c.Args) != len(expected) || b {

t.Fatalf("Unexpected args. Expected %v, received: %v", expected, c.Args)

}

logDone("create - args")

}

// Make sure we can set hostconfig options too

func TestCreateHostConfig(t *testing.T) {

defer deleteAllContainers()

runCmd := exec.Command(dockerBinary, "create", "-P", "busybox", "echo")

out, _, _, err := runCommandWithStdoutStderr(runCmd)

if err != nil {

t.Fatal(out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

inspectCmd := exec.Command(dockerBinary, "inspect", cleanedContainerID)

out, _, err = runCommandWithOutput(inspectCmd)

if err != nil {

t.Fatalf("out should've been a container id: %s, %v", out, err)

}

containers := []struct {

HostConfig *struct {

PublishAllPorts bool

}

}{}

if err := json.Unmarshal([]byte(out), &containers); err != nil {

t.Fatalf("Error inspecting the container: %s", err)

}

if len(containers) != 1 {

t.Fatalf("Unexpected container count. Expected 0, received: %d", len(containers))

}

c := containers[0]

if c.HostConfig == nil {

t.Fatalf("Expected HostConfig, got none")

}

if !c.HostConfig.PublishAllPorts {

t.Fatalf("Expected PublishAllPorts, got false")

}

logDone("create - hostconfig")

}

func TestCreateWithPortRange(t *testing.T) {

defer deleteAllContainers()

runCmd := exec.Command(dockerBinary, "create", "-p", "3300-3303:3300-3303/tcp", "busybox", "echo")

out, _, _, err := runCommandWithStdoutStderr(runCmd)

if err != nil {

t.Fatal(out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

inspectCmd := exec.Command(dockerBinary, "inspect", cleanedContainerID)

out, _, err = runCommandWithOutput(inspectCmd)

if err != nil {

t.Fatalf("out should've been a container id: %s, %v", out, err)

}

containers := []struct {

HostConfig *struct {

PortBindings map[nat.Port][]nat.PortBinding

}

}{}

if err := json.Unmarshal([]byte(out), &containers); err != nil {

t.Fatalf("Error inspecting the container: %s", err)

}

if len(containers) != 1 {

t.Fatalf("Unexpected container count. Expected 0, received: %d", len(containers))

}

c := containers[0]

if c.HostConfig == nil {

t.Fatalf("Expected HostConfig, got none")

}

if len(c.HostConfig.PortBindings) != 4 {

t.Fatalf("Expected 4 ports bindings, got %d", len(c.HostConfig.PortBindings))

}

for k, v := range c.HostConfig.PortBindings {

if len(v) != 1 {

t.Fatalf("Expected 1 ports binding, for the port %s but found %s", k, v)

}

if k.Port() != v[0].HostPort {

t.Fatalf("Expected host port %d to match published port %d", k.Port(), v[0].HostPort)

}

}

logDone("create - port range")

}

func TestCreateWithiLargePortRange(t *testing.T) {

defer deleteAllContainers()

runCmd := exec.Command(dockerBinary, "create", "-p", "1-65535:1-65535/tcp", "busybox", "echo")

out, _, _, err := runCommandWithStdoutStderr(runCmd)

if err != nil {

t.Fatal(out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

inspectCmd := exec.Command(dockerBinary, "inspect", cleanedContainerID)

out, _, err = runCommandWithOutput(inspectCmd)

if err != nil {

t.Fatalf("out should've been a container id: %s, %v", out, err)

}

containers := []struct {

HostConfig *struct {

PortBindings map[nat.Port][]nat.PortBinding

}

}{}

if err := json.Unmarshal([]byte(out), &containers); err != nil {

t.Fatalf("Error inspecting the container: %s", err)

}

if len(containers) != 1 {

t.Fatalf("Unexpected container count. Expected 0, received: %d", len(containers))

}

c := containers[0]

if c.HostConfig == nil {

t.Fatalf("Expected HostConfig, got none")

}

if len(c.HostConfig.PortBindings) != 65535 {

t.Fatalf("Expected 65535 ports bindings, got %d", len(c.HostConfig.PortBindings))

}

for k, v := range c.HostConfig.PortBindings {

if len(v) != 1 {

t.Fatalf("Expected 1 ports binding, for the port %s but found %s", k, v)

}

if k.Port() != v[0].HostPort {

t.Fatalf("Expected host port %d to match published port %d", k.Port(), v[0].HostPort)

}

}

logDone("create - large port range")

}

// "test123" should be printed by docker create + start

func TestCreateEchoStdout(t *testing.T) {

defer deleteAllContainers()

runCmd := exec.Command(dockerBinary, "create", "busybox", "echo", "test123")

out, _, _, err := runCommandWithStdoutStderr(runCmd)

if err != nil {

t.Fatal(out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

runCmd = exec.Command(dockerBinary, "start", "-ai", cleanedContainerID)

out, _, _, err = runCommandWithStdoutStderr(runCmd)

if err != nil {

t.Fatal(out, err)

}

if out != "test123\n" {

t.Errorf("container should've printed 'test123', got %q", out)

}

logDone("create - echo test123")

}

func TestCreateVolumesCreated(t *testing.T) {

testRequires(t, SameHostDaemon)

defer deleteAllContainers()

name := "test_create_volume"

if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "create", "--name", name, "-v", "/foo", "busybox")); err != nil {

t.Fatal(out, err)

}

dir, err := inspectFieldMap(name, "Volumes", "/foo")

if err != nil {

t.Fatalf("Error getting volume host path: %q", err)

}

if _, err := os.Stat(dir); err != nil && os.IsNotExist(err) {

t.Fatalf("Volume was not created")

}

if err != nil {

t.Fatalf("Error statting volume host path: %q", err)

}

logDone("create - volumes are created")

}

func TestCreateLabels(t *testing.T) {

name := "test_create_labels"

expected := map[string]string{"k1": "v1", "k2": "v2"}

if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "create", "--name", name, "-l", "k1=v1", "--label", "k2=v2", "busybox")); err != nil {

t.Fatal(out, err)

}

actual := make(map[string]string)

err := inspectFieldAndMarshall(name, "Config.Labels", &actual)

if err != nil {

t.Fatal(err)

}

if !reflect.DeepEqual(expected, actual) {

t.Fatalf("Expected %s got %s", expected, actual)

}

deleteAllContainers()

logDone("create - labels")

}

func TestCreateLabelFromImage(t *testing.T) {

imageName := "testcreatebuildlabel"

defer deleteImages(imageName)

_, err := buildImage(imageName,

`FROM busybox

LABEL k1=v1 k2=v2`,

true)

if err != nil {

t.Fatal(err)

}

name := "test_create_labels_from_image"

expected := map[string]string{"k2": "x", "k3": "v3", "k1": "v1"}

if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "create", "--name", name, "-l", "k2=x", "--label", "k3=v3", imageName)); err != nil {

t.Fatal(out, err)

}

actual := make(map[string]string)

err = inspectFieldAndMarshall(name, "Config.Labels", &actual)

if err != nil {

t.Fatal(err)

}

if !reflect.DeepEqual(expected, actual) {

t.Fatalf("Expected %s got %s", expected, actual)

}

deleteAllContainers()

logDone("create - labels from image")

}