Detach children before self

Author: davissuber

android/libraries/rib-base/src/main/kotlin/com/uber/rib/core/Router.kt

@@ -206,11 +206,11 @@ protected constructor(
   public open fun dispatchDetach() {
     checkForMainThread()
 
-    interactorGeneric.dispatchDetach()
     willDetach()
     for (child in children) {
       detachChild(child)
     }
+    interactorGeneric.dispatchDetach()
   }
 
   /**

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

@@ -97,16 +97,23 @@ class InteractorAndRouterTest {
     router.dispatchDetach()
 
     // Then.
-    val ribActionInfoValues = ribActionInfoObserver.values()
-    ribActionInfoValues
-      .last()
-      .assertRibActionInfo(
-        RibEventType.DETACHED,
-        RibActionEmitterType.ROUTER,
-        RibActionState.COMPLETED,
-        "com.uber.rib.core.FakeRouter",
-      )
     verify(childInteractor).dispatchDetach()
+    val ribActionInfoValues = ribActionInfoObserver.values()
+    val childRouterDetachIndex =
+      ribActionInfoValues.indexOfFirst {
+        it.ribEventType == RibEventType.DETACHED &&
+          it.ribActionEmitterType == RibActionEmitterType.ROUTER &&
+          it.ribActionState == RibActionState.COMPLETED
+      }
+    val selfInteractorDetachIndex =
+      ribActionInfoValues.indexOfFirst {
+        it.ribEventType == RibEventType.DETACHED &&
+          it.ribActionEmitterType == RibActionEmitterType.INTERACTOR &&
+          it.ribActionState == RibActionState.COMPLETED
+      }
+    assertThat(selfInteractorDetachIndex).isGreaterThan(-1)
+    assertThat(childRouterDetachIndex).isGreaterThan(-1)
+    assertThat(selfInteractorDetachIndex > childRouterDetachIndex).isTrue()
   }
 
   @Test