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docker_cli_commit_test.go

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package main

import (

"os/exec"

"strings"

"testing"

)

func TestCommitAfterContainerIsDone(t *testing.T) {

runCmd := exec.Command(dockerBinary, "run", "-i", "-a", "stdin", "busybox", "echo", "foo")

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

if err != nil {

t.Fatalf("failed to run container: %s, %v", out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

waitCmd := exec.Command(dockerBinary, "wait", cleanedContainerID)

if _, _, err = runCommandWithOutput(waitCmd); err != nil {

t.Fatalf("error thrown while waiting for container: %s, %v", out, err)

}

commitCmd := exec.Command(dockerBinary, "commit", cleanedContainerID)

out, _, err = runCommandWithOutput(commitCmd)

if err != nil {

t.Fatalf("failed to commit container to image: %s, %v", out, err)

}

cleanedImageID := stripTrailingCharacters(out)

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

if out, _, err = runCommandWithOutput(inspectCmd); err != nil {

t.Fatalf("failed to inspect image: %s, %v", out, err)

}

deleteContainer(cleanedContainerID)

deleteImages(cleanedImageID)

logDone("commit - echo foo and commit the image")

}

func TestCommitWithoutPause(t *testing.T) {

runCmd := exec.Command(dockerBinary, "run", "-i", "-a", "stdin", "busybox", "echo", "foo")

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

if err != nil {

t.Fatalf("failed to run container: %s, %v", out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

waitCmd := exec.Command(dockerBinary, "wait", cleanedContainerID)

if _, _, err = runCommandWithOutput(waitCmd); err != nil {

t.Fatalf("error thrown while waiting for container: %s, %v", out, err)

}

commitCmd := exec.Command(dockerBinary, "commit", "-p=false", cleanedContainerID)

out, _, err = runCommandWithOutput(commitCmd)

if err != nil {

t.Fatalf("failed to commit container to image: %s, %v", out, err)

}

cleanedImageID := stripTrailingCharacters(out)

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

if out, _, err = runCommandWithOutput(inspectCmd); err != nil {

t.Fatalf("failed to inspect image: %s, %v", out, err)

}

deleteContainer(cleanedContainerID)

deleteImages(cleanedImageID)

logDone("commit - echo foo and commit the image with --pause=false")

}

func TestCommitNewFile(t *testing.T) {

cmd := exec.Command(dockerBinary, "run", "--name", "commiter", "busybox", "/bin/sh", "-c", "echo koye > /foo")

if _, err := runCommand(cmd); err != nil {

t.Fatal(err)

}

cmd = exec.Command(dockerBinary, "commit", "commiter")

imageID, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err)

}

imageID = strings.Trim(imageID, "\r\n")

cmd = exec.Command(dockerBinary, "run", imageID, "cat", "/foo")

out, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err, out)

}

if actual := strings.Trim(out, "\r\n"); actual != "koye" {

t.Fatalf("expected output koye received %q", actual)

}

deleteAllContainers()

deleteImages(imageID)

logDone("commit - commit file and read")

}

func TestCommitHardlink(t *testing.T) {

cmd := exec.Command(dockerBinary, "run", "-t", "--name", "hardlinks", "busybox", "sh", "-c", "touch file1 && ln file1 file2 && ls -di file1 file2")

firstOuput, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err)

}

chunks := strings.Split(strings.TrimSpace(firstOuput), " ")

inode := chunks[0]

found := false

for _, chunk := range chunks[1:] {

if chunk == inode {

found = true

break

}

}

if !found {

t.Fatalf("Failed to create hardlink in a container. Expected to find %q in %q", inode, chunks[1:])

}

cmd = exec.Command(dockerBinary, "commit", "hardlinks", "hardlinks")

imageID, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(imageID, err)

}

imageID = strings.Trim(imageID, "\r\n")

cmd = exec.Command(dockerBinary, "run", "-t", "hardlinks", "ls", "-di", "file1", "file2")

secondOuput, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err)

}

chunks = strings.Split(strings.TrimSpace(secondOuput), " ")

inode = chunks[0]

found = false

for _, chunk := range chunks[1:] {

if chunk == inode {

found = true

break

}

}

if !found {

t.Fatalf("Failed to create hardlink in a container. Expected to find %q in %q", inode, chunks[1:])

}

deleteAllContainers()

deleteImages(imageID)

logDone("commit - commit hardlinks")

}

func TestCommitTTY(t *testing.T) {

cmd := exec.Command(dockerBinary, "run", "-t", "--name", "tty", "busybox", "/bin/ls")

if _, err := runCommand(cmd); err != nil {

t.Fatal(err)

}

cmd = exec.Command(dockerBinary, "commit", "tty", "ttytest")

imageID, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err)

}

imageID = strings.Trim(imageID, "\r\n")

cmd = exec.Command(dockerBinary, "run", "ttytest", "/bin/ls")

if _, err := runCommand(cmd); err != nil {

t.Fatal(err)

}

logDone("commit - commit tty")

}

func TestCommitWithHostBindMount(t *testing.T) {

cmd := exec.Command(dockerBinary, "run", "--name", "bind-commit", "-v", "/dev/null:/winning", "busybox", "true")

if _, err := runCommand(cmd); err != nil {

t.Fatal(err)

}

cmd = exec.Command(dockerBinary, "commit", "bind-commit", "bindtest")

imageID, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(imageID, err)

}

imageID = strings.Trim(imageID, "\r\n")

cmd = exec.Command(dockerBinary, "run", "bindtest", "true")

if _, err := runCommand(cmd); err != nil {

t.Fatal(err)

}

deleteAllContainers()

deleteImages(imageID)

logDone("commit - commit bind mounted file")

}