// If Next returns a non-nil error, the SMTP client aborts
	// the authentication attempt and closes the connection.
	Next(fromServer []byte, more bool) (toServer []byte, err error)
}

// ServerInfo records information about an SMTP server.
type ServerInfo struct {
	Name string   // SMTP server name
	TLS  bool     // using TLS, with valid certificate for Name
	Auth []string // advertised authentication mechanisms
}

type plainAuth struct {

	if err != nil {
		t.Fatalf("Error creating storage: %v", err)
	}
	t.Cleanup(dFunc)

	tests := []struct {
		testName     string
		servers      []serverInfo
		expectLeases []string
	}{
		{
			testName: "existing IP satisfy",
			servers: []serverInfo{{
				existingIP:     "4.3.2.1",
				id:             "server-1",
				ports:          []corev1.EndpointPort{{Name: "foo", Port: 8080, Protocol: "TCP"}},

		[string] wchar_t *name;
	} ServerInfo100;

	typedef [switch_type(int)] union {
		[case(0)] ServerInfo100 *info0;
	} ServerInfo;

	[op(0x15)]
	int ServerGetInfo([in,string,unique] wchar_t *servername,
			[in] int level,
			[out,switch_is(level)] ServerInfo *info);

	typedef struct {
		uint32_t elapsedt;  
		uint32_t msecs;  
		uint32_t hours;  
		uint32_t mins;  
		uint32_t secs;  

	BuildStatus   string `json:"status"`
	GitTag        string `json:"tag"`
}

// ServerInfo contains the version for a single control plane component
type ServerInfo struct {
	Component string
	Revision  string
	Info      BuildInfo
}

// MeshInfo contains the versions for all Istio control plane components
type MeshInfo []ServerInfo

// NodeType decides the responsibility of the proxy serves in the mesh
type NodeType string

		[string] wchar_t *name;
	} ServerInfo100;

	typedef [switch_type(int)] union {
		[case(0)] ServerInfo100 *info0;
	} ServerInfo;

	[op(0x15)]
	int ServerGetInfo([in,string,unique] wchar_t *servername,
			[in] int level,
			[out,switch_is(level)] ServerInfo *info);

	typedef struct {
		uint32_t elapsedt;  
		uint32_t msecs;  
		uint32_t hours;  
		uint32_t mins;  
		uint32_t secs;  

)

// Sidecar provides an interface to execute queries against a single Envoy sidecar.
type Sidecar interface {
	// Info about the Envoy instance.
	Info() (*admin.ServerInfo, error)
	InfoOrFail(t test.Failer) *admin.ServerInfo

	// Config of the Envoy instance.
	Config() (*admin.ConfigDump, error)
	ConfigOrFail(t test.Failer) *admin.ConfigDump

		cluster:      cluster,
	}

	return sidecar
}

func (s *sidecar) Info() (*admin.ServerInfo, error) {
	msg := &admin.ServerInfo{}
	if err := s.adminRequest("server_info", msg); err != nil {
		return nil, err
	}

	return msg, nil
}

func (s *sidecar) InfoOrFail(t test.Failer) *admin.ServerInfo {
	t.Helper()
	info, err := s.Info()
	if err != nil {
		t.Fatal(err)
	}
	return info
}

		// Ref From common/scripts/report_build_info.sh
		serverInfo.Version = strings.Join(versionParts[:nParts-2], "-")
		serverInfo.GitRevision = versionParts[nParts-2]
		serverInfo.BuildStatus = versionParts[nParts-1]
		if serverInfo.GitRevision == "dirty" {
			serverInfo.GitRevision = strings.Join([]string{versionParts[nParts-3], "dirty"}, "-")
			serverInfo.Version = strings.Join(versionParts[:nParts-3], "-")
		}

}

func TestAuthPlain(t *testing.T) {

	tests := []struct {
		authName string
		server   *ServerInfo
		err      string
	}{
		{
			authName: "servername",
			server:   &ServerInfo{Name: "servername", TLS: true},
		},
		{
			// OK to use PlainAuth on localhost without TLS
			authName: "localhost",
			server:   &ServerInfo{Name: "localhost", TLS: false},
		},
		{

		if err != nil {
			return nil, err
		}
		*outXDS = xdsResponse
		if xdsResponse.ControlPlane == nil {
			return &istioVersion.MeshInfo{
				istioVersion.ServerInfo{
					Component: "MISSING CP ID",
					Info: istioVersion.BuildInfo{
						Version: "MISSING CP ID",
					},
					Revision: "MISSING CP ID",
				},
			}, nil
		}