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//go:build !windows
package main
import (
"context"
"fmt"
"os"
"os/exec"
"strings"
"testing"
"time"
"github.com/creack/pty"
"github.com/docker/docker/integration-cli/cli"
"github.com/docker/docker/integration-cli/cli/build"
"github.com/docker/docker/testutil"
"gotest.tools/v3/assert"
"gotest.tools/v3/icmd"
"gotest.tools/v3/skip"
)
// save a repo and try to load it using stdout
func (s *DockerCLISaveLoadSuite) TestSaveAndLoadRepoStdout(c *testing.T) {
name := "test-save-and-load-repo-stdout"
cli.DockerCmd(c, "run", "--name", name, "busybox", "true")
imgRepoName := "foobar-save-load-test"
before := cli.DockerCmd(c, "commit", name, imgRepoName).Stdout()
before = strings.TrimRight(before, "\n")
tmpFile, err := os.CreateTemp("", "foobar-save-load-test.tar")
assert.NilError(c, err)
defer os.Remove(tmpFile.Name())
icmd.RunCmd(icmd.Cmd{
Command: []string{dockerBinary, "save", imgRepoName},
Stdout: tmpFile,
}).Assert(c, icmd.Success)
tmpFile, err = os.Open(tmpFile.Name())
assert.NilError(c, err)
defer tmpFile.Close()
deleteImages(imgRepoName)
icmd.RunCmd(icmd.Cmd{
Command: []string{dockerBinary, "load"},
Stdin: tmpFile,
}).Assert(c, icmd.Success)
after := inspectField(c, imgRepoName, "Id")
after = strings.TrimRight(after, "\n")
assert.Equal(c, after, before, "inspect is not the same after a save / load")
deleteImages(imgRepoName)
p, tty, err := pty.Open()
assert.NilError(c, err)
cmd := exec.Command(dockerBinary, "save", imgRepoName)
cmd.Stdin = tty
cmd.Stdout = tty
cmd.Stderr = tty
assert.NilError(c, cmd.Start())
assert.ErrorContains(c, cmd.Wait(), "", "did not break writing to a TTY")
buf := make([]byte, 1024)
n, err := p.Read(buf)
assert.NilError(c, err, "could not read tty output")
assert.Assert(c, strings.Contains(string(buf[:n]), "cowardly refusing"), "help output is not being yielded")
}
func (s *DockerCLISaveLoadSuite) TestSaveAndLoadWithProgressBar(c *testing.T) {
// TODO(vvoland): https://github.com/moby/moby/issues/43910
skip.If(c, testEnv.UsingSnapshotter(), "TODO: Not implemented yet")
name := "test-load"
buildImageSuccessfully(c, name, build.WithDockerfile(`FROM busybox
RUN touch aa
`))
tmptar := name + ".tar"
cli.DockerCmd(c, "save", "-o", tmptar, name)
defer os.Remove(tmptar)
cli.DockerCmd(c, "rmi", name)
cli.DockerCmd(c, "tag", "busybox", name)
out := cli.DockerCmd(c, "load", "-i", tmptar).Combined()
expected := fmt.Sprintf("The image %s:latest already exists, renaming the old one with ID", name)
assert.Assert(c, strings.Contains(out, expected))
}
// fail because load didn't receive data from stdin
func (s *DockerCLISaveLoadSuite) TestLoadNoStdinFail(c *testing.T) {
p, tty, err := pty.Open()
assert.NilError(c, err)
ctx, cancel := context.WithTimeout(testutil.GetContext(c), 5*time.Second)
defer cancel()
cmd := exec.CommandContext(ctx, dockerBinary, "load")
cmd.Stdin = tty
cmd.Stdout = tty
cmd.Stderr = tty
assert.ErrorContains(c, cmd.Run(), "", "docker-load should fail")
buf := make([]byte, 1024)
n, err := p.Read(buf)
assert.NilError(c, err) // could not read tty output
assert.Assert(c, strings.Contains(string(buf[:n]), "requested load from stdin, but stdin is empty"))
}
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