github.com/adxhyt/docker@v1.4.2-0.20150117221845-467b7c821390/integration-cli/docker_cli_attach_unix_test.go (about)

     1  // +build !windows
     2  
     3  package main
     4  
     5  import (
     6  	"os/exec"
     7  	"strings"
     8  	"testing"
     9  	"time"
    10  
    11  	"github.com/kr/pty"
    12  )
    13  
    14  // #9860
    15  func TestAttachClosedOnContainerStop(t *testing.T) {
    16  	defer deleteAllContainers()
    17  
    18  	cmd := exec.Command(dockerBinary, "run", "-dti", "busybox", "sleep", "2")
    19  	out, _, err := runCommandWithOutput(cmd)
    20  	if err != nil {
    21  		t.Fatalf("failed to start container: %v (%v)", out, err)
    22  	}
    23  
    24  	id := stripTrailingCharacters(out)
    25  	if err := waitRun(id); err != nil {
    26  		t.Fatal(err)
    27  	}
    28  
    29  	done := make(chan struct{})
    30  
    31  	go func() {
    32  		defer close(done)
    33  
    34  		_, tty, err := pty.Open()
    35  		if err != nil {
    36  			t.Fatalf("could not open pty: %v", err)
    37  		}
    38  		attachCmd := exec.Command(dockerBinary, "attach", id)
    39  		attachCmd.Stdin = tty
    40  		attachCmd.Stdout = tty
    41  		attachCmd.Stderr = tty
    42  
    43  		if err := attachCmd.Run(); err != nil {
    44  			t.Fatalf("attach returned error %s", err)
    45  		}
    46  	}()
    47  
    48  	waitCmd := exec.Command(dockerBinary, "wait", id)
    49  	if out, _, err = runCommandWithOutput(waitCmd); err != nil {
    50  		t.Fatalf("error thrown while waiting for container: %s, %v", out, err)
    51  	}
    52  	select {
    53  	case <-done:
    54  	case <-time.After(attachWait):
    55  		t.Fatal("timed out without attach returning")
    56  	}
    57  
    58  	logDone("attach - return after container finished")
    59  }
    60  
    61  func TestAttachAfterDetach(t *testing.T) {
    62  	defer deleteAllContainers()
    63  
    64  	name := "detachtest"
    65  
    66  	cpty, tty, err := pty.Open()
    67  	if err != nil {
    68  		t.Fatalf("Could not open pty: %v", err)
    69  	}
    70  	cmd := exec.Command(dockerBinary, "run", "-ti", "--name", name, "busybox")
    71  	cmd.Stdin = tty
    72  	cmd.Stdout = tty
    73  	cmd.Stderr = tty
    74  
    75  	detached := make(chan struct{})
    76  	go func() {
    77  		if err := cmd.Run(); err != nil {
    78  			t.Fatalf("attach returned error %s", err)
    79  		}
    80  		close(detached)
    81  	}()
    82  
    83  	time.Sleep(500 * time.Millisecond)
    84  	cpty.Write([]byte{16})
    85  	time.Sleep(100 * time.Millisecond)
    86  	cpty.Write([]byte{17})
    87  
    88  	<-detached
    89  
    90  	cpty, tty, err = pty.Open()
    91  	if err != nil {
    92  		t.Fatalf("Could not open pty: %v", err)
    93  	}
    94  
    95  	cmd = exec.Command(dockerBinary, "attach", name)
    96  	cmd.Stdin = tty
    97  	cmd.Stdout = tty
    98  	cmd.Stderr = tty
    99  
   100  	go func() {
   101  		if err := cmd.Run(); err != nil {
   102  			t.Fatalf("attach returned error %s", err)
   103  		}
   104  		cpty.Close() // unblocks the reader in case of a failure
   105  	}()
   106  
   107  	time.Sleep(500 * time.Millisecond)
   108  	cpty.Write([]byte("\n"))
   109  	time.Sleep(500 * time.Millisecond)
   110  	bytes := make([]byte, 10)
   111  
   112  	n, err := cpty.Read(bytes)
   113  
   114  	if err != nil {
   115  		t.Fatalf("prompt read failed: %v", err)
   116  	}
   117  
   118  	if !strings.Contains(string(bytes[:n]), "/ #") {
   119  		t.Fatalf("failed to get a new prompt. got %s", string(bytes[:n]))
   120  	}
   121  
   122  	cpty.Write([]byte("exit\n"))
   123  
   124  	logDone("attach - reconnect after detaching")
   125  }