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package sockjs
import (
"net/http"
"net/http/httptest"
"strings"
"testing"
"time"
"github.com/gorilla/websocket"
)
func TestHandler_WebSocketHandshakeError(t *testing.T) {
h := newTestHandler()
server := httptest.NewServer(http.HandlerFunc(h.sockjsWebsocket))
defer server.Close()
req, _ := http.NewRequest("GET", server.URL, nil)
req.Header.Set("origin", "https"+server.URL[4:])
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Errorf("There should not be any error, got '%s'", err)
t.FailNow()
}
if resp == nil {
t.Errorf("Response should not be nil")
t.FailNow()
}
if resp.StatusCode != http.StatusBadRequest {
t.Errorf("Unexpected response code, got '%d', expected '%d'", resp.StatusCode, http.StatusBadRequest)
}
}
func TestHandler_WebSocket(t *testing.T) {
h := newTestHandler()
server := httptest.NewServer(http.HandlerFunc(h.sockjsWebsocket))
defer server.CloseClientConnections()
url := "ws" + server.URL[4:]
var connCh = make(chan Session)
h.handlerFunc = func(conn Session) { connCh <- conn }
conn, resp, err := websocket.DefaultDialer.Dial(url, nil)
if err != nil {
t.Errorf("Unexpected error '%v'", err)
t.FailNow()
}
if conn == nil {
t.Errorf("Connection should not be nil")
t.FailNow()
}
if resp == nil {
t.Errorf("Response should not be nil")
t.FailNow()
}
if resp.StatusCode != http.StatusSwitchingProtocols {
t.Errorf("Wrong response code returned, got '%d', expected '%d'", resp.StatusCode, http.StatusSwitchingProtocols)
}
select {
case <-connCh: //ok
case <-time.After(10 * time.Millisecond):
t.Errorf("Sockjs Handler not invoked")
}
}
func TestHandler_WebSocketTerminationByServer(t *testing.T) {
h := newTestHandler()
server := httptest.NewServer(http.HandlerFunc(h.sockjsWebsocket))
defer server.Close()
url := "ws" + server.URL[4:]
h.handlerFunc = func(conn Session) {
conn.Close(1024, "some close message")
conn.Close(0, "this should be ignored")
}
conn, _, err := websocket.DefaultDialer.Dial(url, map[string][]string{"Origin": []string{server.URL}})
if err != nil {
t.Fatalf("websocket dial failed: %v", err)
t.FailNow()
}
if conn == nil {
t.Errorf("Connection should not be nil")
t.FailNow()
}
_, msg, err := conn.ReadMessage()
if string(msg) != "o" || err != nil {
t.Errorf("Open frame expected, got '%s' and error '%v', expected '%s' without error", msg, err, "o")
}
_, msg, err = conn.ReadMessage()
if string(msg) != `c[1024,"some close message"]` || err != nil {
t.Errorf("Close frame expected, got '%s' and error '%v', expected '%s' without error", msg, err, `c[1024,"some close message"]`)
}
_, msg, err = conn.ReadMessage()
// gorilla websocket keeps `errUnexpectedEOF` private so we need to introspect the error message
if err != nil {
if !strings.Contains(err.Error(), "unexpected EOF") {
t.Errorf("Expected 'unexpected EOF' error or similar, got '%v'", err)
}
}
}
func TestHandler_WebSocketTerminationByClient(t *testing.T) {
h := newTestHandler()
server := httptest.NewServer(http.HandlerFunc(h.sockjsWebsocket))
defer server.Close()
url := "ws" + server.URL[4:]
var done = make(chan struct{})
h.handlerFunc = func(conn Session) {
if _, err := conn.Recv(); err != ErrSessionNotOpen {
t.Errorf("Recv should fail")
}
close(done)
}
conn, _, _ := websocket.DefaultDialer.Dial(url, map[string][]string{"Origin": []string{server.URL}})
if conn == nil {
t.Errorf("Connection should not be nil")
t.FailNow()
}
conn.Close()
<-done
}
func TestHandler_WebSocketCommunication(t *testing.T) {
h := newTestHandler()
h.options.WebsocketWriteTimeout = time.Second
server := httptest.NewServer(http.HandlerFunc(h.sockjsWebsocket))
// defer server.CloseClientConnections()
url := "ws" + server.URL[4:]
var done = make(chan struct{})
h.handlerFunc = func(conn Session) {
conn.Send("message 1")
conn.Send("message 2")
msg, err := conn.Recv()
if msg != "message 3" || err != nil {
t.Errorf("Got '%s', expected '%s'", msg, "message 3")
}
conn.Close(123, "close")
close(done)
}
conn, _, _ := websocket.DefaultDialer.Dial(url, map[string][]string{"Origin": []string{server.URL}})
conn.WriteJSON([]string{"message 3"})
var expected = []string{"o", `a["message 1"]`, `a["message 2"]`, `c[123,"close"]`}
for _, exp := range expected {
_, msg, err := conn.ReadMessage()
if string(msg) != exp || err != nil {
t.Errorf("Wrong frame, got '%s' and error '%v', expected '%s' without error", msg, err, exp)
}
}
<-done
}
func TestHandler_CustomWebSocketCommunication(t *testing.T) {
h := newTestHandler()
h.options.WebsocketUpgrader = &websocket.Upgrader{
ReadBufferSize: 0,
WriteBufferSize: 0,
CheckOrigin: func(_ *http.Request) bool { return true },
Error: func(w http.ResponseWriter, r *http.Request, status int, reason error) {},
}
h.options.WebsocketWriteTimeout = time.Second
server := httptest.NewServer(http.HandlerFunc(h.sockjsWebsocket))
url := "ws" + server.URL[4:]
var done = make(chan struct{})
h.handlerFunc = func(conn Session) {
conn.Send("message 1")
conn.Send("message 2")
msg, err := conn.Recv()
if msg != "message 3" || err != nil {
t.Errorf("Got '%s', expected '%s'", msg, "message 3")
}
conn.Close(123, "close")
close(done)
}
conn, _, _ := websocket.DefaultDialer.Dial(url, map[string][]string{"Origin": []string{server.URL}})
conn.WriteJSON([]string{"message 3"})
var expected = []string{"o", `a["message 1"]`, `a["message 2"]`, `c[123,"close"]`}
for _, exp := range expected {
_, msg, err := conn.ReadMessage()
if string(msg) != exp || err != nil {
t.Errorf("Wrong frame, got '%s' and error '%v', expected '%s' without error", msg, err, exp)
}
}
<-done
}
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