test(android): cover notification tap intent

apps/android/app/src/test/java/com/clawdbot/android/NodeForegroundServiceTest.kt

@@ -0,0 +1,43 @@
+package com.clawdbot.android
+
+import android.app.Notification
+import android.content.Intent
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotNull
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.Robolectric
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.Shadows
+import org.robolectric.annotation.Config
+
+@RunWith(RobolectricTestRunner::class)
+@Config(sdk = [34])
+class NodeForegroundServiceTest {
+  @Test
+  fun buildNotificationSetsLaunchIntent() {
+    val service = Robolectric.buildService(NodeForegroundService::class.java).get()
+    val notification = buildNotification(service)
+
+    val pendingIntent = notification.contentIntent
+    assertNotNull(pendingIntent)
+
+    val savedIntent = Shadows.shadowOf(pendingIntent).savedIntent
+    assertNotNull(savedIntent)
+    assertEquals(MainActivity::class.java.name, savedIntent.component?.className)
+
+    val expectedFlags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP
+    assertEquals(expectedFlags, savedIntent.flags and expectedFlags)
+  }
+
+  private fun buildNotification(service: NodeForegroundService): Notification {
+    val method =
+      NodeForegroundService::class.java.getDeclaredMethod(
+        "buildNotification",
+        String::class.java,
+        String::class.java,
+      )
+    method.isAccessible = true
+    return method.invoke(service, "Title", "Text") as Notification
+  }
+}