make methods required

packages/interactive_media_ads/lib/src/platform_interface/interactive_media_ads_platform.dart

@@ -18,27 +18,15 @@ abstract base class InteractiveMediaAdsPlatform {
   /// Creates a new [PlatformAdsLoader].
   PlatformAdsLoader createPlatformAdsLoader(
     PlatformAdsLoaderCreationParams params,
-  ) {
-    throw UnimplementedError(
-      'createPlatformAdsLoader is not implemented on the current platform.',
-    );
-  }
+  );
 
   /// Creates a new [PlatformAdsManagerDelegate].
   PlatformAdsManagerDelegate createPlatformAdsManagerDelegate(
     PlatformAdsManagerDelegateCreationParams params,
-  ) {
-    throw UnimplementedError(
-      'createPlatformAdsManagerDelegate is not implemented on the current platform.',
-    );
-  }
+  );
 
   /// Creates a new [PlatformAdDisplayContainer].
   PlatformAdDisplayContainer createPlatformAdDisplayContainer(
     PlatformAdDisplayContainerCreationParams params,
-  ) {
-    throw UnimplementedError(
-      'createPlatformAdDisplayContainer is not implemented on the current platform.',
-    );
-  }
+  );
 }

packages/interactive_media_ads/lib/src/platform_interface/platform_ads_loader.dart

@@ -91,18 +91,10 @@ abstract base class PlatformAdsLoader {
   final PlatformAdsLoaderCreationParams params;
 
   /// Signal to the SDK that the content has completed.
-  Future<void> contentComplete() {
-    throw UnimplementedError(
-      '`contentComplete` is not implemented on the current platform',
-    );
-  }
+  Future<void> contentComplete();
 
   /// Requests ads from a server.
-  Future<void> requestAds(AdsRequest request) {
-    throw UnimplementedError(
-      '`requestAds` is not implemented on the current platform',
-    );
-  }
+  Future<void> requestAds(AdsRequest request);
 }
 
 /// Data when ads are successfully loaded from the ad server through an

packages/interactive_media_ads/test/ad_display_container_test.dart

@@ -31,16 +31,21 @@ void main() {
 
   testWidgets('constructor parameters are correctly passed to creation params',
       (WidgetTester tester) async {
-    InteractiveMediaAdsPlatform.instance = TestInteractiveMediaAdsPlatform(
-      onCreatePlatformAdDisplayContainer: (
-        PlatformAdDisplayContainerCreationParams params,
-      ) {
-        return TestPlatformAdDisplayContainer(
-          params,
-          onBuild: (_) => Container(),
-        );
-      },
-    );
+    InteractiveMediaAdsPlatform.instance =
+        TestInteractiveMediaAdsPlatform(onCreatePlatformAdDisplayContainer: (
+      PlatformAdDisplayContainerCreationParams params,
+    ) {
+      return TestPlatformAdDisplayContainer(
+        params,
+        onBuild: (_) => Container(),
+      );
+    }, onCreatePlatformAdsLoader: (PlatformAdsLoaderCreationParams params) {
+      throw UnimplementedError();
+    }, onCreatePlatformAdsManagerDelegate: (
+      PlatformAdsManagerDelegateCreationParams params,
+    ) {
+      throw UnimplementedError();
+    });
 
     final AdDisplayContainer adDisplayContainer = AdDisplayContainer(
       key: GlobalKey(),

packages/interactive_media_ads/test/ads_loader_test.dart

@@ -18,6 +18,7 @@ void main() {
         onAdsLoadError: (AdsLoadErrorData data) {},
       ),
       onContentComplete: expectAsync0(() async {}),
+      onRequestAds: (AdsRequest request) async {},
     );
 
     final AdsLoader loader = AdsLoader.fromPlatform(adsLoader);
@@ -32,6 +33,7 @@ void main() {
         onAdsLoadError: (AdsLoadErrorData data) {},
       ),
       onRequestAds: expectAsync1((AdsRequest request) async {}),
+      onContentComplete: () async {},
     );
 
     final AdsLoader loader = AdsLoader.fromPlatform(adsLoader);

packages/interactive_media_ads/test/ads_manager_delegate_test.dart

@@ -15,6 +15,13 @@ void main() {
           (PlatformAdsManagerDelegateCreationParams params) {
         return TestPlatformAdsManagerDelegate(params);
       },
+      onCreatePlatformAdsLoader: (PlatformAdsLoaderCreationParams params) {
+        throw UnimplementedError();
+      },
+      onCreatePlatformAdDisplayContainer:
+          (PlatformAdDisplayContainerCreationParams params) {
+        throw UnimplementedError();
+      },
     );
 
     void onAdEvent(AdEvent event) {}

packages/interactive_media_ads/test/ads_manager_test.dart

@@ -54,7 +54,17 @@ void main() {
 AdsManager createAdsManager(PlatformAdsManager platformManager) {
   InteractiveMediaAdsPlatform.instance = TestInteractiveMediaAdsPlatform(
     onCreatePlatformAdsLoader: (PlatformAdsLoaderCreationParams params) {
-      return TestPlatformAdsLoader(params);
+      return TestPlatformAdsLoader(params,
+          onContentComplete: () async {},
+          onRequestAds: (AdsRequest request) async {});
+    },
+    onCreatePlatformAdsManagerDelegate:
+        (PlatformAdsManagerDelegateCreationParams params) {
+      throw UnimplementedError();
+    },
+    onCreatePlatformAdDisplayContainer:
+        (PlatformAdDisplayContainerCreationParams params) {
+      throw UnimplementedError();
     },
   );
 

packages/interactive_media_ads/test/platform_interface/platform_ads_loader_test.dart

@@ -46,4 +46,14 @@ void main() {
 
 final class ExtendsPlatformAdsLoader extends PlatformAdsLoader {
   ExtendsPlatformAdsLoader(super.params) : super.implementation();
+
+  @override
+  Future<void> contentComplete() {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<void> requestAds(AdsRequest request) {
+    throw UnimplementedError();
+  }
 }

packages/interactive_media_ads/test/test_stubs.dart

@@ -8,44 +8,41 @@ import 'package:interactive_media_ads/src/platform_interface/platform_interface.
 final class TestInteractiveMediaAdsPlatform
     extends InteractiveMediaAdsPlatform {
   TestInteractiveMediaAdsPlatform({
-    this.onCreatePlatformAdsLoader,
-    this.onCreatePlatformAdsManagerDelegate,
-    this.onCreatePlatformAdDisplayContainer,
+    required this.onCreatePlatformAdsLoader,
+    required this.onCreatePlatformAdsManagerDelegate,
+    required this.onCreatePlatformAdDisplayContainer,
   });
 
-  PlatformAdsLoader Function(PlatformAdsLoaderCreationParams params)?
+  PlatformAdsLoader Function(PlatformAdsLoaderCreationParams params)
       onCreatePlatformAdsLoader;
 
   PlatformAdsManagerDelegate Function(
     PlatformAdsManagerDelegateCreationParams params,
-  )? onCreatePlatformAdsManagerDelegate;
+  ) onCreatePlatformAdsManagerDelegate;
 
   PlatformAdDisplayContainer Function(
     PlatformAdDisplayContainerCreationParams params,
-  )? onCreatePlatformAdDisplayContainer;
+  ) onCreatePlatformAdDisplayContainer;
 
   @override
   PlatformAdsLoader createPlatformAdsLoader(
     PlatformAdsLoaderCreationParams params,
   ) {
-    return onCreatePlatformAdsLoader?.call(params) ??
-        super.createPlatformAdsLoader(params);
+    return onCreatePlatformAdsLoader(params);
   }
 
   @override
   PlatformAdsManagerDelegate createPlatformAdsManagerDelegate(
     PlatformAdsManagerDelegateCreationParams params,
   ) {
-    return onCreatePlatformAdsManagerDelegate?.call(params) ??
-        super.createPlatformAdsManagerDelegate(params);
+    return onCreatePlatformAdsManagerDelegate(params);
   }
 
   @override
   PlatformAdDisplayContainer createPlatformAdDisplayContainer(
     PlatformAdDisplayContainerCreationParams params,
   ) {
-    return onCreatePlatformAdDisplayContainer?.call(params) ??
-        super.createPlatformAdDisplayContainer(params);
+    return onCreatePlatformAdDisplayContainer(params);
   }
 }
 
@@ -66,22 +63,22 @@ final class TestPlatformAdDisplayContainer extends PlatformAdDisplayContainer {
 final class TestPlatformAdsLoader extends PlatformAdsLoader {
   TestPlatformAdsLoader(
     super.params, {
-    this.onContentComplete,
-    this.onRequestAds,
+    required this.onContentComplete,
+    required this.onRequestAds,
   }) : super.implementation();
 
-  Future<void> Function()? onContentComplete;
+  Future<void> Function() onContentComplete;
 
-  Future<void> Function(AdsRequest request)? onRequestAds;
+  Future<void> Function(AdsRequest request) onRequestAds;
 
   @override
   Future<void> contentComplete() async {
-    return onContentComplete?.call();
+    return onContentComplete();
   }
 
   @override
   Future<void> requestAds(AdsRequest request) async {
-    return onRequestAds?.call(request);
+    return onRequestAds(request);
   }
 }