docker/integration-cli/docker_cli_save_load_unix_test.go at master · Eagle-X/docker · GitHub

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// +build !windows

package main

import (

"io/ioutil"

"os"

"os/exec"

"github.com/docker/docker/pkg/integration/checker"

"github.com/go-check/check"

"github.com/kr/pty"

)

// save a repo and try to load it using stdout

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

name := "test-save-and-load-repo-stdout"

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

repoName := "foobar-save-load-test"

out, _ := dockerCmd(c, "commit", name, repoName)

before, _ := dockerCmd(c, "inspect", repoName)

tmpFile, err := ioutil.TempFile("", "foobar-save-load-test.tar")

c.Assert(err, check.IsNil)

defer os.Remove(tmpFile.Name())

saveCmd := exec.Command(dockerBinary, "save", repoName)

saveCmd.Stdout = tmpFile

_, err = runCommand(saveCmd)

c.Assert(err, check.IsNil)

tmpFile, err = os.Open(tmpFile.Name())

c.Assert(err, check.IsNil)

deleteImages(repoName)

loadCmd := exec.Command(dockerBinary, "load")

loadCmd.Stdin = tmpFile

out, _, err = runCommandWithOutput(loadCmd)

c.Assert(err, check.IsNil, check.Commentf(out))

after, _ := dockerCmd(c, "inspect", repoName)

c.Assert(before, check.Equals, after) //inspect is not the same after a save / load

deleteImages(repoName)

pty, tty, err := pty.Open()

c.Assert(err, check.IsNil)

cmd := exec.Command(dockerBinary, "save", repoName)

cmd.Stdin = tty

cmd.Stdout = tty

cmd.Stderr = tty

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

c.Assert(cmd.Wait(), check.NotNil) //did not break writing to a TTY

buf := make([]byte, 1024)

n, err := pty.Read(buf)

c.Assert(err, check.IsNil) //could not read tty output

c.Assert(string(buf[:n]), checker.Contains, "Cowardly refusing", check.Commentf("help output is not being yielded", out))

}

docker/integration-cli/docker_cli_save_load_unix_test.go at master · Eagle-X/docker · GitHub

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