Add test asserting Rx subscription is disposed after `RibCoroutineWor…

…ker.asWorker()` is unbound.

android/libraries/rib-base/src/test/kotlin/com/uber/rib/core/RibCoroutineWorkerTest.kt

@@ -203,6 +203,26 @@ class RibCoroutineWorkerTest {
     assertThat(gotEmission).isTrue()
   }
 
+  @Test
+  fun asWorker_autoDisposeWithCoroutineScope_unbindingWorkerDisposesSubscription() = runTest {
+    val router = mock<Router<*>>()
+    val interactor = object : Interactor<Any, Router<*>>() {}
+    val subject = PublishSubject.create<Unit>()
+    var disposed = false
+    val ribCoroutineWorker = RibCoroutineWorker {
+      subject.doOnDispose { disposed = true }.autoDispose(this).subscribe()
+    }
+    val worker = ribCoroutineWorker.asWorker()
+    InteractorHelper.attach(interactor, Any(), router, null)
+    val unbinder = WorkerBinder.bind(interactor, worker)
+    runCurrent()
+    subject.onNext(Unit)
+    assertThat(disposed).isFalse()
+    unbinder.unbind()
+    runCurrent()
+    assertThat(disposed).isTrue()
+  }
+
   @Test
   fun testHelperFunction() = runTest {
     // Sanity - assert initial state.