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package container
import (
"bytes"
"fmt"
"os"
"os/exec"
"strings"
"testing"
"time"
"github.com/creack/pty"
"github.com/docker/cli/e2e/internal/fixtures"
"gotest.tools/v3/assert"
"gotest.tools/v3/icmd"
"gotest.tools/v3/skip"
)
func TestAttachExitCode(t *testing.T) {
const exitCode = 21
result := icmd.RunCommand("docker", "run", "-d", "-i", "--rm", fixtures.AlpineImage, "sh", "-c", fmt.Sprintf("read; exit %d", exitCode))
result.Assert(t, icmd.Success)
containerID := strings.TrimSpace(result.Stdout())
result = icmd.RunCmd(icmd.Command("docker", "attach", containerID), withStdinNewline)
result.Assert(t, icmd.Expected{ExitCode: exitCode})
}
func withStdinNewline(cmd *icmd.Cmd) {
cmd.Stdin = strings.NewReader("\n")
}
// Regression test for https://github.com/docker/cli/issues/5294
func TestAttachInterrupt(t *testing.T) {
// this is a new test, it already did not work (inside dind) when over ssh
// todo(laurazard): make this test work w/ dind over ssh
skip.If(t, strings.Contains(os.Getenv("DOCKER_HOST"), "ssh://"))
// if
result := icmd.RunCommand("docker", "run", "-d", fixtures.AlpineImage,
"sh", "-c", "trap \"exit 33\" SIGINT; for i in $(seq 100); do sleep 0.1; done; exit 34")
result.Assert(t, icmd.Success)
containerID := strings.TrimSpace(result.Stdout())
// run it as such so we can signal it later
c := exec.Command("docker", "attach", containerID)
d := bytes.Buffer{}
c.Stdout = &d
c.Stderr = &d
_, err := pty.Start(c)
assert.NilError(t, err)
// have to wait a bit to give time for the command to execute/print
time.Sleep(500 * time.Millisecond)
c.Process.Signal(os.Interrupt)
_ = c.Wait()
// the CLI should exit with 33 (the SIGINT was forwarded to the container), and the
// CLI process waited for the container exit and properly captured/set the exit code
assert.Equal(t, c.ProcessState.ExitCode(), 33)
}
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