/
session_test.go
350 lines (322 loc) · 9.5 KB
/
session_test.go
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package sockjs
import (
"net/http"
"runtime"
"strings"
"sync"
"testing"
"time"
)
func newTestSession() *session {
// session with long expiration and heartbeats with ID
return newSession(nil, "sessionId", 1000*time.Second, 1000*time.Second)
}
func TestSession_Create(t *testing.T) {
session := newTestSession()
session.sendMessage("this is a message")
if len(session.sendBuffer) != 1 {
t.Errorf("Session send buffer should contain 1 message")
}
session.sendMessage("another message")
if len(session.sendBuffer) != 2 {
t.Errorf("Session send buffer should contain 2 messages")
}
if session.GetSessionState() != SessionOpening {
t.Errorf("Session in wrong state %v, should be %v", session.GetSessionState(), SessionOpening)
}
}
func TestSession_Request(t *testing.T) {
req, _ := http.NewRequest("POST", "/server/session/jsonp_send", strings.NewReader("[\"message\"]"))
sess := newSession(req, "session", time.Second, time.Second)
if sess.Request() == nil {
t.Error("Session initial request should have been saved.")
}
if sess.Request().URL.String() != req.URL.String() {
t.Errorf("Expected stored session request URL to equal %s, got %s", req.URL.String(), sess.Request().URL.String())
}
}
func TestSession_ConcurrentSend(t *testing.T) {
session := newTestSession()
done := make(chan bool)
for i := 0; i < 100; i++ {
go func() {
session.sendMessage("message D")
done <- true
}()
}
for i := 0; i < 100; i++ {
<-done
}
if len(session.sendBuffer) != 100 {
t.Errorf("Session send buffer should contain 100 messages")
}
}
func TestSession_AttachReceiver(t *testing.T) {
session := newTestSession()
recv := &testReceiver{}
// recv := &mockRecv{
// _sendFrame: func(frame string) {
// if frame != "o" {
// t.Errorf("Incorrect open header received")
// }
// },
// _sendBulk: func(...string) {},
// }
if err := session.attachReceiver(recv); err != nil {
t.Errorf("Should not return error")
}
if session.GetSessionState() != SessionActive {
t.Errorf("Session in wrong state after receiver attached %d, should be %d", session.GetSessionState(), SessionActive)
}
session.detachReceiver()
// recv = &mockRecv{
// _sendFrame: func(frame string) {
// t.Errorf("No frame shold be send, got '%s'", frame)
// },
// _sendBulk: func(...string) {},
// }
if err := session.attachReceiver(recv); err != nil {
t.Errorf("Should not return error")
}
}
func TestSession_Timeout(t *testing.T) {
sess := newSession(nil, "id", 10*time.Millisecond, 10*time.Second)
select {
case <-sess.closeCh:
case <-time.After(20 * time.Millisecond):
select {
case <-sess.closeCh:
// still ok
default:
t.Errorf("sess close notification channel should close")
}
}
if sess.GetSessionState() != SessionClosed {
t.Errorf("Session did not timeout")
}
}
func TestSession_TimeoutOfClosedSession(t *testing.T) {
defer func() {
if r := recover(); r != nil {
t.Errorf("Unexcpected error '%v'", r)
}
}()
sess := newSession(nil, "id", 1*time.Millisecond, time.Second)
sess.closing()
time.Sleep(1 * time.Millisecond)
sess.closing()
}
func TestSession_AttachReceiverAndCheckHeartbeats(t *testing.T) {
defer func() {
if r := recover(); r != nil {
t.Errorf("Unexcpected error '%v'", r)
}
}()
session := newSession(nil, "id", time.Second, 10*time.Millisecond) // 10ms heartbeats
recv := newTestReceiver()
defer close(recv.doneCh)
session.attachReceiver(recv)
time.Sleep(120 * time.Millisecond)
recv.Lock()
if len(recv.frames) < 10 || len(recv.frames) > 13 { // should get around 10 heartbeats (120ms/10ms)
t.Fatalf("Wrong number of frames received, got '%d'", len(recv.frames))
}
for i := 1; i < len(recv.frames); i++ {
if recv.frames[i] != "h" {
t.Errorf("Heartbeat no received")
}
}
}
func TestSession_AttachReceiverAndRefuse(t *testing.T) {
session := newTestSession()
if err := session.attachReceiver(newTestReceiver()); err != nil {
t.Errorf("Should not return error")
}
var a sync.WaitGroup
a.Add(100)
for i := 0; i < 100; i++ {
go func() {
defer a.Done()
if err := session.attachReceiver(newTestReceiver()); err != errSessionReceiverAttached {
t.Errorf("Should return error as another receiver is already attached")
}
}()
}
a.Wait()
}
func TestSession_DetachRecevier(t *testing.T) {
session := newTestSession()
session.detachReceiver()
session.detachReceiver() // idempotent operation
session.attachReceiver(newTestReceiver())
session.detachReceiver()
}
func TestSession_SendWithRecv(t *testing.T) {
session := newTestSession()
session.sendMessage("message A")
session.sendMessage("message B")
if len(session.sendBuffer) != 2 {
t.Errorf("There should be 2 messages in buffer, but there are %d", len(session.sendBuffer))
}
recv := newTestReceiver()
defer close(recv.doneCh)
session.attachReceiver(recv)
if len(recv.frames[1:]) != 2 {
t.Errorf("Reciver should get 2 message frames from session, got %d", len(recv.frames))
}
session.sendMessage("message C")
if len(recv.frames[1:]) != 3 {
t.Errorf("Reciver should get 3 message frames from session, got %d", len(recv.frames))
}
session.sendMessage("message D")
if len(recv.frames[1:]) != 4 {
t.Errorf("Reciver should get 4 frames from session, got %d", len(recv.frames))
}
if len(session.sendBuffer) != 0 {
t.Errorf("Send buffer should be empty now, but there are %d messaged", len(session.sendBuffer))
}
}
func TestSession_Recv(t *testing.T) {
defer func() {
if r := recover(); r != nil {
t.Errorf("Panic should not happen")
}
}()
var wg sync.WaitGroup
wg.Add(1)
session := newTestSession()
go func() {
defer wg.Done()
session.accept("message A")
session.accept("message B")
if err := session.accept("message C"); err != ErrSessionNotOpen {
t.Errorf("Session should not accept new messages if closed, got '%v' expected '%v'", err, ErrSessionNotOpen)
}
}()
if msg, _ := session.Recv(); msg != "message A" {
t.Errorf("Got %s, should be %s", msg, "message A")
}
if msg, _ := session.Recv(); msg != "message B" {
t.Errorf("Got %s, should be %s", msg, "message B")
}
session.close()
wg.Wait()
}
func TestSession_Closing(t *testing.T) {
session := newTestSession()
session.closing()
if _, err := session.Recv(); err == nil {
t.Errorf("Session's receive buffer channel should close")
}
if err := session.sendMessage("some message"); err != ErrSessionNotOpen {
t.Errorf("Session should not accept new message after close")
}
}
// Session as Session Tests
func TestSession_AsSession(t *testing.T) { var _ Session = newSession(nil, "id", 0, 0) }
func TestSession_SessionRecv(t *testing.T) {
s := newTestSession()
go func() {
s.accept("message 1")
}()
msg, err := s.Recv()
if msg != "message 1" || err != nil {
t.Errorf("Should receive a message without error, got '%s' err '%v'", msg, err)
}
go func() {
s.closing()
_, err := s.Recv()
if err != ErrSessionNotOpen {
t.Errorf("Session not in correct state, got '%v', expected '%v'", err, ErrSessionNotOpen)
}
}()
_, err = s.Recv()
if err != ErrSessionNotOpen {
t.Errorf("Session not in correct state, got '%v', expected '%v'", err, ErrSessionNotOpen)
}
}
func TestSession_SessionSend(t *testing.T) {
s := newTestSession()
err := s.Send("message A")
if err != nil {
t.Errorf("Session should take messages by default")
}
if len(s.sendBuffer) != 1 || s.sendBuffer[0] != "message A" {
t.Errorf("Message not properly queued in session, got '%v'", s.sendBuffer)
}
}
func TestSession_SessionClose(t *testing.T) {
s := newTestSession()
s.state = SessionActive
recv := newTestReceiver()
s.attachReceiver(recv)
err := s.Close(1, "some reason")
if len(recv.frames) != 1 || recv.frames[0] != "c[1,\"some reason\"]" {
t.Errorf("Expected close frame, got '%v'", recv.frames)
}
if err != nil {
t.Errorf("Should not get any error, got '%s'", err)
}
if s.closeFrame != "c[1,\"some reason\"]" {
t.Errorf("Incorrect closeFrame, got '%s'", s.closeFrame)
}
if s.GetSessionState() != SessionClosing {
t.Errorf("Incorrect session state, expected 'sessionClosing', got '%v'", s.GetSessionState())
}
// all the consequent receivers trying to attach shoult get the same close frame
var i = 100
for i > 0 {
recv := newTestReceiver()
err := s.attachReceiver(recv)
if err != nil {
// give a chance to a receiver to detach
runtime.Gosched()
continue
}
i--
if len(recv.frames) != 1 || recv.frames[0] != "c[1,\"some reason\"]" {
t.Errorf("Close frame not received by recv, frames '%v'", recv.frames)
}
}
if err := s.Close(1, "some other reson"); err != ErrSessionNotOpen {
t.Errorf("Expected error, got '%v'", err)
}
}
func TestSession_SessionSessionId(t *testing.T) {
s := newTestSession()
if s.ID() != "sessionId" {
t.Errorf("Unexpected session ID, got '%s', expected '%s'", s.ID(), "sessionId")
}
}
func newTestReceiver() *testReceiver {
return &testReceiver{
doneCh: make(chan struct{}),
interruptCh: make(chan struct{}),
}
}
type testReceiver struct {
sync.Mutex
doneCh, interruptCh chan struct{}
frames []string
}
func (t *testReceiver) doneNotify() <-chan struct{} { return t.doneCh }
func (t *testReceiver) interruptedNotify() <-chan struct{} { return t.interruptCh }
func (t *testReceiver) close() { close(t.doneCh) }
func (t *testReceiver) canSend() bool {
select {
case <-t.doneCh:
return false // already closed
default:
return true
}
}
func (t *testReceiver) sendBulk(messages ...string) {
for _, m := range messages {
t.sendFrame(m)
}
}
func (t *testReceiver) sendFrame(frame string) {
t.Lock()
defer t.Unlock()
t.frames = append(t.frames, frame)
}