initial commit

tests/integration/gateway_dm_call_lifecycle_dmcall_reconnection_test.go

@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package integration
+
+import (
+	"encoding/json"
+	"testing"
+	"time"
+)
+
+func TestDMCallReconnection(t *testing.T) {
+	client := newTestClient(t)
+	user1 := createTestAccount(t, client)
+	user2 := createTestAccount(t, client)
+
+	guild := createGuild(t, client, user1.Token, "Test Guild")
+	invite := createChannelInvite(t, client, user1.Token, parseSnowflake(t, guild.SystemChannel))
+	joinGuild(t, client, user2.Token, invite.Code)
+
+	dm := createDmChannel(t, client, user1.Token, parseSnowflake(t, user2.UserID))
+
+	gateway1 := newGatewayClient(t, client, user1.Token)
+	defer gateway1.Close()
+
+	gateway2 := newGatewayClient(t, client, user2.Token)
+	defer gateway2.Close()
+
+	t.Run("user can rejoin call after leaving while another user is still connected", func(t *testing.T) {
+		ringCall(t, client, user1.Token, parseSnowflake(t, dm.ID), nil)
+
+		gateway1.WaitForEvent(t, "CALL_CREATE", 5*time.Second, nil)
+		gateway2.WaitForEvent(t, "CALL_CREATE", 5*time.Second, nil)
+
+		gateway1.SendVoiceStateUpdate(nil, &dm.ID, nil, false, false, false, false)
+		serverUpdate1 := gateway1.WaitForEvent(t, "VOICE_SERVER_UPDATE", 5*time.Second, nil)
+		var vsu1 voiceServerUpdate
+		if err := json.Unmarshal(serverUpdate1.Data, &vsu1); err != nil {
+			t.Fatalf("failed to decode VOICE_SERVER_UPDATE for user1: %v", err)
+		}
+		connectionID1 := vsu1.ConnectionID
+
+		lkConn1 := connectToLiveKit(t, vsu1.Endpoint, vsu1.Token, dm.ID, user1.UserID)
+		defer lkConn1.disconnect()
+
+		gateway2.SendVoiceStateUpdate(nil, &dm.ID, nil, false, false, false, false)
+		serverUpdate2 := gateway2.WaitForEvent(t, "VOICE_SERVER_UPDATE", 5*time.Second, nil)
+		var vsu2 voiceServerUpdate
+		if err := json.Unmarshal(serverUpdate2.Data, &vsu2); err != nil {
+			t.Fatalf("failed to decode VOICE_SERVER_UPDATE for user2: %v", err)
+		}
+		connectionID2 := vsu2.ConnectionID
+
+		lkConn2 := connectToLiveKit(t, vsu2.Endpoint, vsu2.Token, dm.ID, user2.UserID)
+		defer lkConn2.disconnect()
+
+		gateway1.WaitForEvent(t, "CALL_UPDATE", 5*time.Second, func(data json.RawMessage) bool {
+			var call callUpdateEvent
+			if err := json.Unmarshal(data, &call); err != nil {
+				return false
+			}
+			return len(call.VoiceStates) == 2
+		})
+
+		t.Log("Both users in call")
+
+		gateway1.SendVoiceStateUpdate(nil, nil, &connectionID1, false, false, false, false)
+		lkConn1.disconnect()
+
+		gateway2.WaitForEvent(t, "CALL_UPDATE", 5*time.Second, func(data json.RawMessage) bool {
+			var call callUpdateEvent
+			if err := json.Unmarshal(data, &call); err != nil {
+				return false
+			}
+			return len(call.VoiceStates) == 1
+		})
+
+		t.Log("User1 left, user2 still in call")
+
+		time.Sleep(500 * time.Millisecond)
+
+		gateway1.SendVoiceStateUpdate(nil, &dm.ID, nil, false, false, false, false)
+		serverUpdate1Rejoin := gateway1.WaitForEvent(t, "VOICE_SERVER_UPDATE", 5*time.Second, nil)
+		var vsu1Rejoin voiceServerUpdate
+		if err := json.Unmarshal(serverUpdate1Rejoin.Data, &vsu1Rejoin); err != nil {
+			t.Fatalf("failed to decode VOICE_SERVER_UPDATE for user1 rejoin: %v", err)
+		}
+		connectionID1New := vsu1Rejoin.ConnectionID
+
+		if connectionID1New == connectionID1 {
+			t.Log("Note: connection_id is the same after rejoin (this is acceptable)")
+		} else {
+			t.Logf("New connection_id after rejoin: old=%s, new=%s", connectionID1, connectionID1New)
+		}
+
+		lkConn1Rejoin := connectToLiveKit(t, vsu1Rejoin.Endpoint, vsu1Rejoin.Token, dm.ID, user1.UserID)
+		defer lkConn1Rejoin.disconnect()
+
+		callUpdateEvt := gateway1.WaitForEvent(t, "CALL_UPDATE", 5*time.Second, func(data json.RawMessage) bool {
+			var call callUpdateEvent
+			if err := json.Unmarshal(data, &call); err != nil {
+				return false
+			}
+			return len(call.VoiceStates) == 2
+		})
+
+		var callUpdate callUpdateEvent
+		if err := json.Unmarshal(callUpdateEvt.Data, &callUpdate); err != nil {
+			t.Fatalf("failed to decode CALL_UPDATE: %v", err)
+		}
+
+		if len(callUpdate.VoiceStates) != 2 {
+			t.Fatalf("expected 2 voice_states after user1 rejoin, got %d", len(callUpdate.VoiceStates))
+		}
+
+		user1Found := false
+		user2Found := false
+		for _, vs := range callUpdate.VoiceStates {
+			if vs.UserID == user1.UserID {
+				user1Found = true
+			}
+			if vs.UserID == user2.UserID {
+				user2Found = true
+			}
+		}
+
+		if !user1Found {
+			t.Fatal("expected user1 in voice_states after rejoin")
+		}
+		if !user2Found {
+			t.Fatal("expected user2 in voice_states after rejoin")
+		}
+
+		t.Log("User1 successfully rejoined the call")
+
+		gateway1.SendVoiceStateUpdate(nil, nil, &connectionID1New, false, false, false, false)
+		gateway2.SendVoiceStateUpdate(nil, nil, &connectionID2, false, false, false, false)
+
+		gateway1.WaitForEvent(t, "CALL_DELETE", 5*time.Second, nil)
+
+		t.Log("Call ended after both users left")
+	})
+}