package runconfig import ( "fmt" "io/ioutil" "testing" "github.com/docker/docker/api/types" flag "github.com/docker/docker/pkg/mflag" ) type arguments struct { args []string } func TestParseExec(t *testing.T) { invalids := map[*arguments]error{ &arguments{[]string{"-unknown"}}: fmt.Errorf("flag provided but not defined: -unknown"), &arguments{[]string{"-u"}}: fmt.Errorf("flag needs an argument: -u"), &arguments{[]string{"--user"}}: fmt.Errorf("flag needs an argument: --user"), } valids := map[*arguments]*types.ExecConfig{ &arguments{ []string{"container", "command"}, }: { Container: "container", Cmd: []string{"command"}, AttachStdout: true, AttachStderr: true, }, &arguments{ []string{"container", "command1", "command2"}, }: { Container: "container", Cmd: []string{"command1", "command2"}, AttachStdout: true, AttachStderr: true, }, &arguments{ []string{"-i", "-t", "-u", "uid", "container", "command"}, }: { User: "uid", AttachStdin: true, AttachStdout: true, AttachStderr: true, Tty: true, Container: "container", Cmd: []string{"command"}, }, &arguments{ []string{"-d", "container", "command"}, }: { AttachStdin: false, AttachStdout: false, AttachStderr: false, Detach: true, Container: "container", Cmd: []string{"command"}, }, &arguments{ []string{"-t", "-i", "-d", "container", "command"}, }: { AttachStdin: false, AttachStdout: false, AttachStderr: false, Detach: true, Tty: true, Container: "container", Cmd: []string{"command"}, }, } for invalid, expectedError := range invalids { cmd := flag.NewFlagSet("exec", flag.ContinueOnError) cmd.ShortUsage = func() {} cmd.SetOutput(ioutil.Discard) _, err := ParseExec(cmd, invalid.args) if err == nil || err.Error() != expectedError.Error() { t.Fatalf("Expected an error [%v] for %v, got %v", expectedError, invalid, err) } } for valid, expectedExecConfig := range valids { cmd := flag.NewFlagSet("exec", flag.ContinueOnError) cmd.ShortUsage = func() {} cmd.SetOutput(ioutil.Discard) execConfig, err := ParseExec(cmd, valid.args) if err != nil { t.Fatal(err) } if !compareExecConfig(expectedExecConfig, execConfig) { t.Fatalf("Expected [%v] for %v, got [%v]", expectedExecConfig, valid, execConfig) } } } func compareExecConfig(config1 *types.ExecConfig, config2 *types.ExecConfig) bool { if config1.AttachStderr != config2.AttachStderr { return false } if config1.AttachStdin != config2.AttachStdin { return false } if config1.AttachStdout != config2.AttachStdout { return false } if config1.Container != config2.Container { return false } if config1.Detach != config2.Detach { return false } if config1.Privileged != config2.Privileged { return false } if config1.Tty != config2.Tty { return false } if config1.User != config2.User { return false } if len(config1.Cmd) != len(config2.Cmd) { return false } for index, value := range config1.Cmd { if value != config2.Cmd[index] { return false } } return true }