| package docker |
| |
| import ( |
| "bufio" |
| "fmt" |
| "github.com/dotcloud/docker/utils" |
| "io" |
| "io/ioutil" |
| "strings" |
| "testing" |
| "time" |
| ) |
| |
| func closeWrap(args ...io.Closer) error { |
| e := false |
| ret := fmt.Errorf("Error closing elements") |
| for _, c := range args { |
| if err := c.Close(); err != nil { |
| e = true |
| ret = fmt.Errorf("%s\n%s", ret, err) |
| } |
| } |
| if e { |
| return ret |
| } |
| return nil |
| } |
| |
| func setTimeout(t *testing.T, msg string, d time.Duration, f func()) { |
| c := make(chan bool) |
| |
| // Make sure we are not too long |
| go func() { |
| time.Sleep(d) |
| c <- true |
| }() |
| go func() { |
| f() |
| c <- false |
| }() |
| if <-c { |
| t.Fatal(msg) |
| } |
| } |
| |
| func assertPipe(input, output string, r io.Reader, w io.Writer, count int) error { |
| for i := 0; i < count; i++ { |
| if _, err := w.Write([]byte(input)); err != nil { |
| return err |
| } |
| o, err := bufio.NewReader(r).ReadString('\n') |
| if err != nil { |
| return err |
| } |
| if strings.Trim(o, " \r\n") != output { |
| return fmt.Errorf("Unexpected output. Expected [%s], received [%s]", output, o) |
| } |
| } |
| return nil |
| } |
| |
| |
| // TestRunHostname checks that 'docker run -h' correctly sets a custom hostname |
| func TestRunHostname(t *testing.T) { |
| stdout, stdoutPipe := io.Pipe() |
| |
| cli := NewDockerCli(nil, stdoutPipe, ioutil.Discard, testDaemonProto, testDaemonAddr) |
| defer cleanup(globalRuntime) |
| |
| c := make(chan struct{}) |
| go func() { |
| defer close(c) |
| if err := cli.CmdRun("-h", "foobar", unitTestImageID, "hostname"); err != nil { |
| t.Fatal(err) |
| } |
| }() |
| utils.Debugf("--") |
| setTimeout(t, "Reading command output time out", 2*time.Second, func() { |
| cmdOutput, err := bufio.NewReader(stdout).ReadString('\n') |
| if err != nil { |
| t.Fatal(err) |
| } |
| if cmdOutput != "foobar\n" { |
| t.Fatalf("'hostname' should display '%s', not '%s'", "foobar\n", cmdOutput) |
| } |
| }) |
| |
| setTimeout(t, "CmdRun timed out", 5*time.Second, func() { |
| <-c |
| }) |
| |
| } |
| |
| |
| // TestAttachStdin checks attaching to stdin without stdout and stderr. |
| // 'docker run -i -a stdin' should sends the client's stdin to the command, |
| // then detach from it and print the container id. |
| func TestRunAttachStdin(t *testing.T) { |
| |
| stdin, stdinPipe := io.Pipe() |
| stdout, stdoutPipe := io.Pipe() |
| |
| cli := NewDockerCli(stdin, stdoutPipe, ioutil.Discard, testDaemonProto, testDaemonAddr) |
| defer cleanup(globalRuntime) |
| |
| ch := make(chan struct{}) |
| go func() { |
| defer close(ch) |
| cli.CmdRun("-i", "-a", "stdin", unitTestImageID, "sh", "-c", "echo hello && cat") |
| }() |
| |
| // Send input to the command, close stdin |
| setTimeout(t, "Write timed out", 10*time.Second, func() { |
| if _, err := stdinPipe.Write([]byte("hi there\n")); err != nil { |
| t.Fatal(err) |
| } |
| if err := stdinPipe.Close(); err != nil { |
| t.Fatal(err) |
| } |
| }) |
| |
| container := globalRuntime.List()[0] |
| |
| // Check output |
| setTimeout(t, "Reading command output time out", 10*time.Second, func() { |
| cmdOutput, err := bufio.NewReader(stdout).ReadString('\n') |
| if err != nil { |
| t.Fatal(err) |
| } |
| if cmdOutput != container.ShortID()+"\n" { |
| t.Fatalf("Wrong output: should be '%s', not '%s'\n", container.ShortID()+"\n", cmdOutput) |
| } |
| }) |
| |
| // wait for CmdRun to return |
| setTimeout(t, "Waiting for CmdRun timed out", 5*time.Second, func() { |
| // Unblock hijack end |
| stdout.Read([]byte{}) |
| <-ch |
| }) |
| |
| setTimeout(t, "Waiting for command to exit timed out", 5*time.Second, func() { |
| container.Wait() |
| }) |
| |
| // Check logs |
| if cmdLogs, err := container.ReadLog("stdout"); err != nil { |
| t.Fatal(err) |
| } else { |
| if output, err := ioutil.ReadAll(cmdLogs); err != nil { |
| t.Fatal(err) |
| } else { |
| expectedLog := "hello\nhi there\n" |
| if string(output) != expectedLog { |
| t.Fatalf("Unexpected logs: should be '%s', not '%s'\n", expectedLog, output) |
| } |
| } |
| } |
| } |