test(store): generate IAP review screenshot for App Store (remove_ads)

Headless render of the Settings screen showing the Remove Ads purchase point + price + Restore Purchases, for the App Store IAP review-screenshot requirement. Forces a desktop target platform so the real IapService can be constructed without the store plugin making async channel calls. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-15 10:46:54 +09:00
parent ea01da9b62
commit 3e136dc288
2 changed files with 128 additions and 0 deletions
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+// Headless generator for the App Store IAP review screenshot: renders the
+// Settings screen (where "광고 제거 / Remove Ads" is purchased) to a PNG.
+//
+//   flutter test test/tool/generate_iap_review_screenshot_test.dart
+//
+// Output: docs/store/iap_review_remove_ads.png
+import 'dart:io';
+import 'dart:ui' as ui;
+
+import 'package:block_seasons/data/save_repository.dart';
+import 'package:block_seasons/l10n/gen/app_localizations.dart';
+import 'package:block_seasons/services/iap_service.dart';
+import 'package:block_seasons/state/providers.dart';
+import 'package:block_seasons/ui/screens/settings_screen.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:in_app_purchase/in_app_purchase.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+// A stand-in IAP service that reports the product as available with a price,
+// so the Settings row renders exactly as a shopper sees it. initialize() is
+// never called, so no real store query happens.
+class _FakeIap extends IapService {
+  _FakeIap() : super(onEntitlementGranted: _noop);
+  static Future<void> _noop() async {}
+
+  @override
+  bool get available => true;
+
+  @override
+  ProductDetails get product => ProductDetails(
+        id: 'remove_ads',
+        title: 'Remove Ads',
+        description: 'Remove banner and interstitial ads',
+        price: r'$0.99',
+        rawPrice: 0.99,
+        currencyCode: 'USD',
+      );
+}
+
+Future<void> _loadFont() async {
+  final bytes =
+      File('/System/Library/Fonts/Supplemental/Arial.ttf').readAsBytesSync();
+  final loader = FontLoader('Arial')
+    ..addFont(Future.value(ByteData.view(bytes.buffer)));
+  await loader.load();
+}
+
+Widget _wrap(ProviderContainer c, Widget screen, GlobalKey key) =>
+    UncontrolledProviderScope(
+      container: c,
+      child: RepaintBoundary(
+        key: key,
+        child: MaterialApp(
+          debugShowCheckedModeBanner: false,
+          locale: const Locale('en'),
+          localizationsDelegates: AppLocalizations.localizationsDelegates,
+          supportedLocales: AppLocalizations.supportedLocales,
+          theme: ThemeData(
+            fontFamily: 'Arial',
+            colorScheme: ColorScheme.fromSeed(
+              seedColor: const Color(0xFF5B7FFF),
+              brightness: Brightness.dark,
+            ),
+            useMaterial3: true,
+          ),
+          home: screen,
+        ),
+      ),
+    );
+
+void main() {
+  testWidgets('generate IAP review screenshot', (tester) async {
+    // in_app_purchase only registers a native platform for android/iOS/macOS;
+    // on a desktop target it registers none, so constructing the real
+    // IapService never makes a store channel call (which would throw async in
+    // the headless binding). The fake overrides available/product anyway.
+    debugDefaultTargetPlatformOverride = TargetPlatform.linux;
+
+    await _loadFont();
+
+    const dpr = 3.0;
+    tester.view.devicePixelRatio = dpr;
+    tester.view.physicalSize = const Size(1242, 2688); // 6.5" — accepted size
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+
+    SharedPreferences.setMockInitialValues({});
+    final repo = SaveRepository(await SharedPreferences.getInstance());
+
+    final key = GlobalKey();
+    final c = ProviderContainer(overrides: [
+      saveRepositoryProvider.overrideWithValue(repo),
+      iapServiceProvider.overrideWithValue(_FakeIap()),
+    ]);
+    await tester.pumpWidget(_wrap(c, const SettingsScreen(), key));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 450));
+
+    var ro = key.currentContext!.findRenderObject()!;
+    while (!ro.isRepaintBoundary) {
+      ro = ro.parent!;
+    }
+    final layer = ro.debugLayer! as OffsetLayer;
+    final bounds = ro.paintBounds;
+    final bytes = await tester.runAsync(() async {
+      final image = await layer.toImage(bounds, pixelRatio: dpr);
+      final data = await image.toByteData(format: ui.ImageByteFormat.png);
+      image.dispose();
+      return data;
+    });
+    File('docs/store/iap_review_remove_ads.png')
+      ..parent.createSync(recursive: true)
+      ..writeAsBytesSync(bytes!.buffer.asUint8List());
+    c.dispose();
+
+    // Reset before the body ends so flutter_test's foundation-var invariant
+    // check (which runs before addTearDown) passes.
+    debugDefaultTargetPlatformOverride = null;
+
+    expect(
+        File('docs/store/iap_review_remove_ads.png').existsSync(), isTrue);
+  });
+}