diff --git a/tools/chatgui-android/router-tests/src/main/kotlin/android/app/HostNotifications.kt b/tools/chatgui-android/router-tests/src/main/kotlin/android/app/HostNotifications.kt
index 79e9539a..84ee808c 100644
--- a/tools/chatgui-android/router-tests/src/main/kotlin/android/app/HostNotifications.kt
+++ b/tools/chatgui-android/router-tests/src/main/kotlin/android/app/HostNotifications.kt
@@ -30,7 +30,7 @@ class NotificationChannel(val id: String, val name: String, val importance: Int)
 
 /** Host OS boundaries: отказы канала, разрешений и публикации независимы. */
 class NotificationManager {
-    companion object { const val IMPORTANCE_HIGH = 4 }
+    companion object { const val IMPORTANCE_HIGH = 4; const val IMPORTANCE_LOW = 2 }
     var failures = emptySet<String>()
     var notificationsEnabled = true
     var fullScreenAllowed = true
diff --git a/tools/chatgui-android/router-tests/src/main/kotlin/android/content/Context.kt b/tools/chatgui-android/router-tests/src/main/kotlin/android/content/Context.kt
index 20c85846..fb5e8048 100644
--- a/tools/chatgui-android/router-tests/src/main/kotlin/android/content/Context.kt
+++ b/tools/chatgui-android/router-tests/src/main/kotlin/android/content/Context.kt
@@ -28,7 +28,7 @@ open class Context {
     var powerManager: PowerManager? = PowerManager()
     var failPowerService = false
     val resources = HostResources()
-    var windowManager: android.view.WindowManager? = android.view.WindowManager()
+    var windowService: android.view.WindowManager? = android.view.WindowManager()
     val serviceStarts = mutableListOf<Intent>()
     val serviceStops = mutableListOf<Intent>()
     var failServiceStart = false
@@ -81,7 +81,7 @@ open class Context {
         VIBRATOR_SERVICE -> vibrator
         POWER_SERVICE -> { check(!failPowerService) { "power service lookup unavailable" }; powerManager }
         WIFI_SERVICE -> { check(!failWifiService) { "Wi-Fi service unavailable" }; wifiManager }
-        WINDOW_SERVICE -> windowManager
+        WINDOW_SERVICE -> windowService
         else -> error("Unknown service: $name")
     }
     fun <T> getSystemService(type: Class<T>): T? {
diff --git a/tools/chatgui-android/router-tests/src/test/kotlin/com/utun/chat/data/RadioOverlayLifecycleTest.kt b/tools/chatgui-android/router-tests/src/test/kotlin/com/utun/chat/data/RadioOverlayLifecycleTest.kt
index 7395beab..9d4e0a60 100644
--- a/tools/chatgui-android/router-tests/src/test/kotlin/com/utun/chat/data/RadioOverlayLifecycleTest.kt
+++ b/tools/chatgui-android/router-tests/src/test/kotlin/com/utun/chat/data/RadioOverlayLifecycleTest.kt
@@ -34,7 +34,7 @@ class RadioOverlayLifecycleTest {
     private val dispatcher = StandardTestDispatcher()
     private val services = mutableListOf<RadioOverlayService>()
     private var previousEngine: Any? = null
-    private val wm get() = requireNotNull(context.windowManager)
+    private val wm get() = requireNotNull(context.windowService)
     private val view get() = wm.windows.keys.single()
     private val main get() = Looper.getMainLooper()
 
@@ -79,7 +79,7 @@ class RadioOverlayLifecycleTest {
 
     private fun drain() { io.submit {}.get(5, TimeUnit.SECONDS) }
     private fun create(): RadioOverlayService = RadioOverlayService().also {
-        services.add(it); it.notificationManager = context.notificationManager; it.windowManager = wm
+        services.add(it); it.notificationManager = context.notificationManager; it.windowService = wm
         it.permissionGranted = context.permissionGranted
         it.onCreate(); dispatcher.scheduler.runCurrent()
     }
@@ -99,12 +99,12 @@ class RadioOverlayLifecycleTest {
 
     @Test fun startupChannelAndForegroundFailuresAreLoggedAndRequestStop() {
         for (failure in listOf("channel", "foreground", "foreground after", "window")) {
-            val service = RadioOverlayService().also { services.add(it); it.notificationManager = context.notificationManager; it.windowManager = wm }
+            val service = RadioOverlayService().also { services.add(it); it.notificationManager = context.notificationManager; it.windowService = wm }
             when (failure) {
                 "channel" -> requireNotNull(context.notificationManager).failures = setOf("channel")
                 "foreground" -> service.failForeground = true
                 "foreground after" -> service.failForegroundAfter = true
-                "window" -> service.windowManager = null
+                "window" -> service.windowService = null
             }
             service.onCreate(); assertTrue(service.stops > 0); diagnostic("service setup failed")
             requireNotNull(context.notificationManager).failures = emptySet(); service.onDestroy()