Fix macOS issue

Author: Kyle-Ye

Example/OpenSwiftUIUITests/UITests/AnimationDebugController.swift

@@ -3,7 +3,6 @@
 //  OpenSwiftUIUITests
 
 import Foundation
-import UIKit
 import OpenSwiftUI_SPI
 
 struct AnimationTestModel: Hashable {
@@ -40,8 +39,8 @@ final class AnimationDebugController<V>: PlatformHostingController<V> where V: V
         fatalError("init(coder:) has not been implemented")
     }
 
-    private var host: _UIHostingView<V> {
-        view as! _UIHostingView<V>
+    private var host: PlatformHostingView<V> {
+        view as! PlatformHostingView<V>
     }
 
     func advance(interval: Double) {
@@ -54,12 +53,16 @@ final class AnimationDebugController<V>: PlatformHostingController<V> where V: V
 
     override func viewDidLoad() {
         super.viewDidLoad()
+        #if os(iOS) || os(visionOS)
         Self.hookLayoutSubviews(type(of: host))
         Self.hookDisplayLinkTimer()
+        #endif
     }
 
+    #if os(iOS) || os(visionOS)
     var disableLayoutSubview = false
 
+    // Fix swift-snapshot framework snapshot will trigger uncessary _UIHostingView.layoutSubview issue
     static func hookLayoutSubviews(_ cls: AnyClass?) {
         let originalSelector = #selector(PlatformView.layoutSubviews)
         let swizzledSelector = #selector(PlatformView.swizzled_layoutSubviews)
@@ -89,8 +92,10 @@ final class AnimationDebugController<V>: PlatformHostingController<V> where V: V
     func swizzled_displayLinkTimerWithLink(_ sender: CADisplayLink) {
         sender.isPaused = true
     }
+    #endif
 }
 
+#if os(iOS) || os(visionOS)
 // Avoid generic parameter casting
 private protocol AnimationDebuggableController: PlatformViewController {
     var disableLayoutSubview: Bool { get set }
@@ -111,3 +116,4 @@ extension PlatformView {
         vc.disableLayoutSubview = true
     }
 }
+#endif

Example/OpenSwiftUIUITests/UITests/SnapshotTesting+Testing.swift

@@ -9,6 +9,7 @@ import Foundation
 #if canImport(AppKit)
 import AppKit
 typealias PlatformHostingController = NSHostingController
+typealias PlatformHostingView = NSHostingView
 typealias PlatformViewController = NSViewController
 typealias PlatformView = NSView
 typealias PlatformImage = NSImage
@@ -21,6 +22,7 @@ extension Color {
 #else
 import UIKit
 typealias PlatformHostingController = UIHostingController
+typealias PlatformHostingView = _UIHostingView
 typealias PlatformViewController = UIViewController
 typealias PlatformView = UIView
 typealias PlatformImage = UIImage

Sources/OpenSwiftUI/Integration/Hosting/AppKit/View/NSHostingView.swift

@@ -416,12 +416,36 @@ open class NSHostingView<Content>: NSView, XcodeViewDebugDataProvider where Cont
 @available(visionOS, unavailable)
 extension NSHostingView {
     public func _renderForTest(interval: Double) {
-        // TODO
+        // FIXME: Copy from iOS version
+        _openSwiftUIUnimplementedWarning()
+
+        func shouldContinue() -> Bool {
+            if propertiesNeedingUpdate == [], !CoreTesting.needsRender {
+                false
+            } else {
+                times >= 0
+            }
+        }
+        advanceTimeForTest(interval: interval)
+        canAdvanceTimeAutomatically = false
+        var times = 16
+        repeat {
+            times -= 1
+            CoreTesting.needsRender = false
+            updateGraph { host in
+                host.flushTransactions()
+            }
+            RunLoop.flushObservers()
+            render(targetTimestamp: nil)
+            CATransaction.flush()
+        } while shouldContinue()
+        CoreTesting.needsRender = false
+        canAdvanceTimeAutomatically = true
     }
 
     public func _renderAsyncForTest(interval: Double) -> Bool {
-        // TODO
-        false
+        _openSwiftUIUnimplementedWarning()
+        return false
     }
 }