github.com/xeptore/docker-cli@v20.10.14+incompatible/e2e/container/proxy_signal_test.go (about)

     1  package container
     2  
     3  import (
     4  	"os/exec"
     5  	"strings"
     6  	"syscall"
     7  	"testing"
     8  	"time"
     9  
    10  	"github.com/creack/pty"
    11  	"github.com/docker/cli/e2e/internal/fixtures"
    12  	"gotest.tools/v3/assert"
    13  	"gotest.tools/v3/icmd"
    14  	"gotest.tools/v3/poll"
    15  )
    16  
    17  // TestSigProxyWithTTY tests that killing the docker CLI forwards the signal to
    18  // the container, and kills the container's process. Test-case for moby/moby#28872
    19  func TestSigProxyWithTTY(t *testing.T) {
    20  	cmd := exec.Command("docker", "run", "-i", "-t", "--init", "--name", t.Name(), fixtures.BusyboxImage, "sleep", "30")
    21  	p, err := pty.Start(cmd)
    22  	defer func() {
    23  		_ = cmd.Wait()
    24  		_ = p.Close()
    25  	}()
    26  	assert.NilError(t, err, "failed to start container")
    27  	defer icmd.RunCommand("docker", "container", "rm", "-f", t.Name())
    28  
    29  	poll.WaitOn(t, containerExistsWithStatus(t.Name(), "running"), poll.WithDelay(100*time.Millisecond), poll.WithTimeout(5*time.Second))
    30  
    31  	pid := cmd.Process.Pid
    32  	t.Logf("terminating PID %d", pid)
    33  	err = syscall.Kill(pid, syscall.SIGTERM)
    34  	assert.NilError(t, err)
    35  
    36  	poll.WaitOn(t, containerExistsWithStatus(t.Name(), "exited"), poll.WithDelay(100*time.Millisecond), poll.WithTimeout(5*time.Second))
    37  }
    38  
    39  func containerExistsWithStatus(containerID, status string) func(poll.LogT) poll.Result {
    40  	return func(poll.LogT) poll.Result {
    41  		result := icmd.RunCommand("docker", "inspect", "-f", "{{ .State.Status }}", containerID)
    42  		// ignore initial failures as the container may not yet exist (i.e., don't result.Assert(t, icmd.Success))
    43  
    44  		actual := strings.TrimSpace(result.Stdout())
    45  		if actual == status {
    46  			return poll.Success()
    47  		}
    48  		return poll.Continue("expected status %s != %s", status, actual)
    49  	}
    50  }