diff --git a/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAlerts.kt b/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAlerts.kt
index fb6a20f1..e20a64c2 100644
--- a/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAlerts.kt
+++ b/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAlerts.kt
@@ -35,7 +35,7 @@ class AudioFocusRequest private constructor(val attributes: AudioAttributes?, va
 }
 
 /** Управляемые lifecycle failures; callbacks намеренно сохраняются после release для теста запоздалой доставки. */
-class MediaPlayer private constructor(val resourceId: Int, val effectiveAttributes: AudioAttributes, private val failures: Set<String>) {
+class MediaPlayer private constructor(val resourceId: Int, val effectiveAttributes: AudioAttributes, var failures: Set<String>) {
     companion object {
         val created = mutableListOf<MediaPlayer>()
         var nextFailures = emptySet<String>()
@@ -52,6 +52,8 @@ class MediaPlayer private constructor(val resourceId: Int, val effectiveAttribut
     }
     var released = false
         private set
+    var playing = false
+        private set
     var startCalls = 0
         private set
     var releaseCalls = 0
@@ -70,12 +72,14 @@ class MediaPlayer private constructor(val resourceId: Int, val effectiveAttribut
     fun setAudioAttributes(attributes: AudioAttributes) { fail("attributes") }
     fun setOnCompletionListener(listener: (MediaPlayer) -> Unit) { fail("completion listener"); completion = listener }
     fun setOnErrorListener(listener: (MediaPlayer, Int, Int) -> Boolean) { fail("error listener"); error = listener }
-    fun start() { startCalls++; fail("start") }
+    fun start() { startCalls++; fail("start"); playing = true; fail("start after") }
     fun stop() { fail("stop") }
     fun release() {
         releaseCalls++
-        fail("release")
+        check("release" !in failures) { "release failed" }
         released = true
+        playing = false
+        check("release after" !in failures) { "release failed after effect" }
     }
     fun complete() { completion?.invoke(this) }
     fun playbackError(what: Int = 100, extra: Int = -1004): Boolean {
@@ -85,15 +89,23 @@ class MediaPlayer private constructor(val resourceId: Int, val effectiveAttribut
     }
 }
 
-class Ringtone internal constructor(private val failures: Set<String>) {
+class Ringtone internal constructor(var failures: Set<String>) {
     var audioAttributes: AudioAttributes? = null
         set(value) { check("attributes" !in failures) { "ringtone attributes failed" }; field = value }
     var isLooping = false
         set(value) { check("loop" !in failures) { "ringtone loop failed" }; field = value }
     var playCalls = 0
     var stopCalls = 0
-    fun play() { playCalls++; check("play" !in failures) { "ringtone play failed" } }
-    fun stop() { stopCalls++; check("stop" !in failures) { "ringtone stop failed" } }
+    var playing = false
+        private set
+    fun play() {
+        playCalls++; check("play" !in failures) { "ringtone play failed" }
+        playing = true; check("play after" !in failures) { "ringtone play failed after effect" }
+    }
+    fun stop() {
+        stopCalls++; check("stop" !in failures) { "ringtone stop failed" }
+        playing = false; check("stop after" !in failures) { "ringtone stop failed after effect" }
+    }
 }
 
 object RingtoneManager {
diff --git a/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAudio.kt b/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAudio.kt
index a4ff236c..81d4e3d6 100644
--- a/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAudio.kt
+++ b/tools/chatgui-android/router-tests/src/main/kotlin/android/media/HostAudio.kt
@@ -35,17 +35,24 @@ class AudioManager {
     var focusResult = AUDIOFOCUS_REQUEST_GRANTED
     var abandonResult = AUDIOFOCUS_REQUEST_GRANTED
     var failFocus = false
+    var failFocusAfter = false
     var failAbandon = false
+    var failAbandonAfter = false
     val focusHistory = mutableListOf<AudioFocusRequest>()
     val abandoned = mutableListOf<AudioFocusRequest>()
+    val focusOwners = mutableSetOf<AudioFocusRequest>()
     fun requestAudioFocus(request: AudioFocusRequest): Int {
         focusHistory.add(request)
         check(!failFocus) { "focus unavailable" }
+        if (focusResult == AUDIOFOCUS_REQUEST_GRANTED) focusOwners.add(request)
+        check(!failFocusAfter) { "focus failed after effect" }
         return focusResult
     }
     fun abandonAudioFocusRequest(request: AudioFocusRequest): Int {
         abandoned.add(request)
         check(!failAbandon) { "abandon unavailable" }
+        if (abandonResult == AUDIOFOCUS_REQUEST_GRANTED) focusOwners.remove(request)
+        check(!failAbandonAfter) { "abandon failed after effect" }
         return abandonResult
     }
     val operations = mutableListOf<String>()