Fix RTCEngine not being set to connecting state (#706)

+---
+"client-sdk-android": patch
+---
+
+Fix not being able to publish immediately after connecting

@@ -117,7 +117,7 @@ internal constructor(
         }
         when (newVal) {
             ConnectionState.CONNECTED -> {
-                if (oldVal == ConnectionState.DISCONNECTED) {
+                if (oldVal == ConnectionState.DISCONNECTED || oldVal == ConnectionState.CONNECTING) {
                     LKLog.d { "primary ICE connected" }
                     listener?.onEngineConnected()
                 } else if (oldVal == ConnectionState.RECONNECTING) {
@@ -209,6 +209,9 @@ internal constructor(
         options: ConnectOptions,
         roomOptions: RoomOptions,
     ): JoinResponse = coroutineScope {
+        if (connectionState == ConnectionState.DISCONNECTED) {
+            connectionState = ConnectionState.CONNECTING
+        }
         val joinResponse = client.join(url, token, options, roomOptions)
         ensureActive()
 

 /*
- * Copyright 2023-2024 LiveKit, Inc.
+ * Copyright 2023-2025 LiveKit, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,9 +17,10 @@
 package io.livekit.android.room
 
 import io.livekit.android.test.MockE2ETest
+import io.livekit.android.test.events.FlowCollector
 import io.livekit.android.test.mock.TestData
-import io.livekit.android.test.util.toOkioByteString
 import io.livekit.android.test.util.toPBByteString
+import io.livekit.android.util.flow
 import io.livekit.android.util.toOkioByteString
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import livekit.LivekitModels
@@ -44,6 +45,18 @@ class RTCEngineMockE2ETest : MockE2ETest() {
     }
 
     @Test
+    fun connectionState() = runTest {
+        val collector = FlowCollector(rtcEngine::connectionState.flow, coroutineRule.scope)
+        connect()
+        val events = collector.stopCollecting()
+        println(events)
+        assertEquals(3, events.size)
+        assertEquals(ConnectionState.DISCONNECTED, events[0])
+        assertEquals(ConnectionState.CONNECTING, events[1])
+        assertEquals(ConnectionState.CONNECTED, events[2])
+    }
+
+    @Test
     fun iceServersSetOnJoin() = runTest {
         connect()
         val sentIceServers = TestData.JOIN.join.iceServersList
@@ -143,6 +156,7 @@ class RTCEngineMockE2ETest : MockE2ETest() {
         assertEquals(PeerConnection.IceTransportsType.RELAY, subPeerConnection.rtcConfig.iceTransportsType)
     }
 
+    @Test
     fun participantIdOnReconnect() = runTest {
         connect()
         wsFactory.listener.onFailure(wsFactory.ws, Exception(), null)