98 lines
2.4 KiB
Go
98 lines
2.4 KiB
Go
// +build !windows
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package main
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import (
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"bytes"
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"io/ioutil"
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"os"
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"os/exec"
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"github.com/go-check/check"
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"github.com/kr/pty"
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)
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// save a repo and try to load it using stdout
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func (s *DockerSuite) TestSaveAndLoadRepoStdout(c *check.C) {
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name := "test-save-and-load-repo-stdout"
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runCmd := exec.Command(dockerBinary, "run", "--name", name, "busybox", "true")
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out, _, err := runCommandWithOutput(runCmd)
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if err != nil {
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c.Fatalf("failed to create a container: %s, %v", out, err)
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}
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repoName := "foobar-save-load-test"
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commitCmd := exec.Command(dockerBinary, "commit", name, repoName)
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if out, _, err = runCommandWithOutput(commitCmd); err != nil {
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c.Fatalf("failed to commit container: %s, %v", out, err)
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}
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inspectCmd := exec.Command(dockerBinary, "inspect", repoName)
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before, _, err := runCommandWithOutput(inspectCmd)
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if err != nil {
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c.Fatalf("the repo should exist before saving it: %s, %v", before, err)
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}
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tmpFile, err := ioutil.TempFile("", "foobar-save-load-test.tar")
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c.Assert(err, check.IsNil)
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defer os.Remove(tmpFile.Name())
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saveCmd := exec.Command(dockerBinary, "save", repoName)
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saveCmd.Stdout = tmpFile
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if _, err = runCommand(saveCmd); err != nil {
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c.Fatalf("failed to save repo: %v", err)
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}
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tmpFile, err = os.Open(tmpFile.Name())
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c.Assert(err, check.IsNil)
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deleteImages(repoName)
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loadCmd := exec.Command(dockerBinary, "load")
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loadCmd.Stdin = tmpFile
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if out, _, err = runCommandWithOutput(loadCmd); err != nil {
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c.Fatalf("failed to load repo: %s, %v", out, err)
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}
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inspectCmd = exec.Command(dockerBinary, "inspect", repoName)
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after, _, err := runCommandWithOutput(inspectCmd)
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if err != nil {
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c.Fatalf("the repo should exist after loading it: %s %v", after, err)
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}
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if before != after {
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c.Fatalf("inspect is not the same after a save / load")
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}
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deleteImages(repoName)
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pty, tty, err := pty.Open()
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if err != nil {
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c.Fatalf("Could not open pty: %v", err)
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}
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cmd := exec.Command(dockerBinary, "save", repoName)
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cmd.Stdin = tty
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cmd.Stdout = tty
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cmd.Stderr = tty
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if err := cmd.Start(); err != nil {
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c.Fatalf("start err: %v", err)
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}
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if err := cmd.Wait(); err == nil {
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c.Fatal("did not break writing to a TTY")
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}
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buf := make([]byte, 1024)
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n, err := pty.Read(buf)
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if err != nil {
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c.Fatal("could not read tty output")
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}
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if !bytes.Contains(buf[:n], []byte("Cowardly refusing")) {
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c.Fatal("help output is not being yielded", out)
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}
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}
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