update test

Author: maRci002

shell/platform/android/io/flutter/embedding/android/FlutterActivity.java

@@ -681,9 +681,14 @@ public void unregisterOnBackInvokedCallback() {
     }
   }
 
-  final OnBackInvokedCallback onBackInvokedCallback =
+  private final OnBackInvokedCallback onBackInvokedCallback =
       Build.VERSION.SDK_INT < 33 ? null : createOnBackInvokedCallback();
 
+  @VisibleForTesting
+  protected OnBackInvokedCallback getOnBackInvokedCallback() {
+    return onBackInvokedCallback;
+  }
+
   @NonNull
   @TargetApi(33)
   @RequiresApi(33)

shell/platform/android/test/io/flutter/embedding/android/FlutterActivityTest.java

@@ -126,7 +126,7 @@ public void itUnregistersOnBackInvokedCallbackOnRelease() {
   }
 
   @Test
-  @Config(maxSdk = Build.VERSION_CODES.S_V2)
+  @Config(sdk = Build.VERSION_CODES.S_V2)
   public void onBackInvokedCallbackIsNullForSdk32OrLower() {
     Intent intent = FlutterActivity.createDefaultIntent(ctx);
     ActivityController<FlutterActivity> activityController =
@@ -137,58 +137,65 @@ public void onBackInvokedCallbackIsNullForSdk32OrLower() {
 
     assertNull(
         "onBackInvokedCallback should be null for SDK 32 or lower",
-        flutterActivity.onBackInvokedCallback);
+        flutterActivity.getOnBackInvokedCallback());
   }
 
   @Test
   @Config(sdk = Build.VERSION_CODES.TIRAMISU)
   @TargetApi(Build.VERSION_CODES.TIRAMISU)
   public void onBackInvokedCallbackCallsOnBackPressedForSdk33() {
-    Intent intent = FlutterActivityWithReportFullyDrawn.createDefaultIntent(ctx);
-    ActivityController<FlutterActivityWithReportFullyDrawn> activityController =
-        Robolectric.buildActivity(FlutterActivityWithReportFullyDrawn.class, intent);
-    FlutterActivityWithReportFullyDrawn activity = spy(activityController.get());
+    Intent intent = FlutterActivity.createDefaultIntent(ctx);
+    ActivityController<FlutterActivity> activityController =
+        Robolectric.buildActivity(FlutterActivity.class, intent);
+    FlutterActivity activity = activityController.get();
 
     activity.onCreate(null);
 
+    OnBackInvokedCallback callback = activity.getOnBackInvokedCallback();
     assertNotNull(
-        "onBackInvokedCallback should not be null for SDK 33", activity.onBackInvokedCallback);
+        "onBackInvokedCallback should not be null for SDK 33, actual:"
+            + (callback != null ? callback.getClass().getName() : "null"),
+        callback);
 
-    OnBackInvokedCallback callback = activity.onBackInvokedCallback;
+    FlutterActivity spyActivity = spy(activity);
 
     callback.onBackInvoked();
-    verify(activity, times(1)).onBackPressed();
+    verify(spyActivity, times(1)).onBackPressed();
   }
 
   @Test
   @Config(sdk = Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
   @TargetApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
   public void itHandlesOnBackAnimationCallbackAsExpectedForSdk34OrHigher() {
-    Intent intent = FlutterActivityWithReportFullyDrawn.createDefaultIntent(ctx);
-    ActivityController<FlutterActivityWithReportFullyDrawn> activityController =
-        Robolectric.buildActivity(FlutterActivityWithReportFullyDrawn.class, intent);
-    FlutterActivityWithReportFullyDrawn activity = spy(activityController.get());
+    Intent intent = FlutterActivity.createDefaultIntent(ctx);
+    ActivityController<FlutterActivity> activityController =
+        Robolectric.buildActivity(FlutterActivity.class, intent);
+    FlutterActivity activity = spy(activityController.get());
 
     activity.onCreate(null);
 
+    OnBackInvokedCallback callback = activity.getOnBackInvokedCallback();
+
     assertTrue(
-        "onBackInvokedCallback should be an instance of OnBackAnimationCallback for SDK 34 or higher",
-        activity.onBackInvokedCallback instanceof OnBackAnimationCallback);
+        "onBackInvokedCallback should be an instance of OnBackAnimationCallback for SDK 34 or higher, actual:"
+            + (callback != null ? callback.getClass().getName() : "null"),
+        callback instanceof OnBackAnimationCallback);
 
-    OnBackAnimationCallback callback = (OnBackAnimationCallback) activity.onBackInvokedCallback;
+    OnBackAnimationCallback aCallback = (OnBackAnimationCallback) callback;
+    FlutterActivity spyActivity = spy(activity);
 
     BackEvent mockBackEvent = mock(BackEvent.class);
-    callback.onBackStarted(mockBackEvent);
-    verify(activity, times(1)).startBackGesture(mockBackEvent);
+    aCallback.onBackStarted(mockBackEvent);
+    verify(spyActivity, times(1)).startBackGesture(mockBackEvent);
 
-    callback.onBackProgressed(mockBackEvent);
-    verify(activity, times(1)).updateBackGestureProgress(mockBackEvent);
+    aCallback.onBackProgressed(mockBackEvent);
+    verify(spyActivity, times(1)).updateBackGestureProgress(mockBackEvent);
 
-    callback.onBackInvoked();
-    verify(activity, times(1)).commitBackGesture();
+    aCallback.onBackInvoked();
+    verify(spyActivity, times(1)).commitBackGesture();
 
-    callback.onBackCancelled();
-    verify(activity, times(1)).cancelBackGesture();
+    aCallback.onBackCancelled();
+    verify(spyActivity, times(1)).cancelBackGesture();
   }
 
   @Test