moby/integration-cli/docker_cli_save_load_unix_test.go
Brian Goff e8dc902781 Wire up tests to support otel tracing
Integration tests will now configure clients to propagate traces as well
as create spans for all tests.

Some extra changes were needed (or desired for trace propagation) in the
test helpers to pass through tracing spans via context.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2023-09-07 18:38:22 +00:00

107 lines
2.9 KiB
Go

//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/build"
"github.com/docker/docker/testutil"
"gotest.tools/v3/assert"
"gotest.tools/v3/icmd"
)
// save a repo and try to load it using stdout
func (s *DockerCLISaveLoadSuite) TestSaveAndLoadRepoStdout(c *testing.T) {
name := "test-save-and-load-repo-stdout"
dockerCmd(c, "run", "--name", name, "busybox", "true")
repoName := "foobar-save-load-test"
before, _ := dockerCmd(c, "commit", name, repoName)
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", repoName},
Stdout: tmpFile,
}).Assert(c, icmd.Success)
tmpFile, err = os.Open(tmpFile.Name())
assert.NilError(c, err)
defer tmpFile.Close()
deleteImages(repoName)
icmd.RunCmd(icmd.Cmd{
Command: []string{dockerBinary, "load"},
Stdin: tmpFile,
}).Assert(c, icmd.Success)
after := inspectField(c, repoName, "Id")
after = strings.TrimRight(after, "\n")
assert.Equal(c, after, before, "inspect is not the same after a save / load")
deleteImages(repoName)
pty, tty, err := pty.Open()
assert.NilError(c, err)
cmd := exec.Command(dockerBinary, "save", repoName)
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 := pty.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) {
name := "test-load"
buildImageSuccessfully(c, name, build.WithDockerfile(`FROM busybox
RUN touch aa
`))
tmptar := name + ".tar"
dockerCmd(c, "save", "-o", tmptar, name)
defer os.Remove(tmptar)
dockerCmd(c, "rmi", name)
dockerCmd(c, "tag", "busybox", name)
out, _ := dockerCmd(c, "load", "-i", tmptar)
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) {
pty, 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 := pty.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"))
}