test

Author: Chris Yang

shell/platform/darwin/ios/framework/Source/accessibility_bridge_test.mm

@@ -1618,6 +1618,68 @@ - (void)testAnnouncesIgnoresLayoutChangeWhenModal {
   XCTAssertEqual([accessibility_notifications count], 0ul);
 }
 
+- (void)testAnnouncesIgnoresLayoutChangeWhenApplicationIsInactive {
+  flutter::MockDelegate mock_delegate;
+  auto thread_task_runner = CreateNewThread("AccessibilityBridgeTest");
+  flutter::TaskRunners runners(/*label=*/self.name.UTF8String,
+                               /*platform=*/thread_task_runner,
+                               /*raster=*/thread_task_runner,
+                               /*ui=*/thread_task_runner,
+                               /*io=*/thread_task_runner);
+  auto platform_view = std::make_unique<flutter::PlatformViewIOS>(
+      /*delegate=*/mock_delegate,
+      /*rendering_api=*/flutter::IOSRenderingAPI::kSoftware,
+      /*platform_views_controller=*/nil,
+      /*task_runners=*/runners);
+  id mockFlutterView = OCMClassMock([FlutterView class]);
+  id mockFlutterViewController = OCMClassMock([FlutterViewController class]);
+  OCMStub([mockFlutterViewController view]).andReturn(mockFlutterView);
+
+  NSMutableArray<NSDictionary<NSString*, id>*>* accessibility_notifications =
+      [[[NSMutableArray alloc] init] autorelease];
+  auto ios_delegate = std::make_unique<flutter::MockIosDelegate>();
+  ios_delegate->on_PostAccessibilityNotification_ =
+      [accessibility_notifications](UIAccessibilityNotifications notification, id argument) {
+        [accessibility_notifications addObject:@{
+          @"notification" : @(notification),
+          @"argument" : argument ? argument : [NSNull null],
+        }];
+      };
+  __block auto bridge =
+      std::make_unique<flutter::AccessibilityBridge>(/*view_controller=*/mockFlutterViewController,
+                                                     /*platform_view=*/platform_view.get(),
+                                                     /*platform_views_controller=*/nil,
+                                                     /*ios_delegate=*/std::move(ios_delegate));
+  id mockApplication = OCMClassMock([UIApplication class]);
+  OCMStub([UIApplication sharedApplication]).andReturn(mockApplication);
+  OCMStub([mockApplication applicationState]).andReturn(UIApplicationStateInactive);
+
+  flutter::CustomAccessibilityActionUpdates actions;
+  flutter::SemanticsNodeUpdates nodes;
+
+  flutter::SemanticsNode child_node;
+  child_node.id = 1;
+  child_node.label = "child_node";
+  nodes[child_node.id] = child_node;
+  flutter::SemanticsNode root_node;
+  root_node.id = kRootNodeId;
+  root_node.label = "root";
+  root_node.childrenInTraversalOrder = {1};
+  root_node.childrenInHitTestOrder = {1};
+  nodes[root_node.id] = root_node;
+  bridge->UpdateSemantics(/*nodes=*/nodes, /*actions=*/actions);
+
+  // Removes child_node to simulate a layout change.
+  flutter::SemanticsNodeUpdates new_nodes;
+  flutter::SemanticsNode new_root_node;
+  new_root_node.id = kRootNodeId;
+  new_root_node.label = "root";
+  new_nodes[new_root_node.id] = new_root_node;
+  bridge->UpdateSemantics(/*nodes=*/new_nodes, /*actions=*/actions);
+
+  XCTAssertEqual([accessibility_notifications count], 0ul);
+}
+
 - (void)testAnnouncesIgnoresScrollChangeWhenModal {
   flutter::MockDelegate mock_delegate;
   auto thread_task_runner = CreateNewThread("AccessibilityBridgeTest");