test: clarify skip reasons for Android experimental test guards

Author: mfazekas

example/__tests__/autoplay.harness.tsx

@@ -274,7 +274,8 @@ describe('autoPlay prop (issue #138)', () => {
 
 describe('Auto dataBind with no default ViewModel (issue #189)', () => {
   it('auto-binds default ViewModel when one exists', async () => {
-    // getViewModelInstance() not yet available on Android experimental
+    // getViewModelInstance() returns null on Android experimental — auto-bind
+    // doesn't expose the VMI handle to JS yet
     const isAndroidExperimental =
       Platform.OS === 'android' &&
       RiveFileFactory.getBackend() === 'experimental';

example/__tests__/rive.harness.ts

@@ -36,6 +36,8 @@ describe('ViewModel', () => {
     expect(vm1).toBeDefined();
     expect(vm2).toBeDefined();
 
+    // Experimental backends don't validate nested VM paths — the SDK returns
+    // a handle even for nonexistent paths instead of null.
     const isExperimental = RiveFileFactory.getBackend() === 'experimental';
     if (!isExperimental) {
       expect(await instance?.viewModelAsync('nonexistent')).toBeUndefined();
@@ -47,7 +49,7 @@ describe('ViewModel', () => {
   });
 
   it('replaceViewModel() replaces and shares state', async () => {
-    // replaceViewModel state propagation not yet working on Android experimental
+    // replaceViewModel is a no-op on Android experimental (not yet implemented)
     const isAndroidExperimental =
       Platform.OS === 'android' &&
       RiveFileFactory.getBackend() === 'experimental';

example/__tests__/viewmodel-instance-lookup.harness.tsx

@@ -17,7 +17,8 @@ import {
 import type { ViewModelInstance } from '@rive-app/react-native';
 
 // rive-android experimental SDK doesn't expose the ViewModel name from
-// DefaultForArtboard yet (pending rive-app/rive-android#443).
+// DefaultForArtboard yet — pending rive-app/rive-android#443 which adds
+// getDefaultViewModelInfo(). Once merged and released, remove these guards.
 const isAndroidExperimental =
   Platform.OS === 'android' && RiveFileFactory.getBackend() === 'experimental';