feat(app): 播放器增加清晰度档位入口

test/player/quality_sheet_test.dart

@@ -0,0 +1,32 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/l10n/app_localizations.dart';
+import 'package:fruitshorts/pages/player/widgets/quality_sheet.dart';
+
+void main() {
+  testWidgets('should_list_every_returned_quality_when_sheet_opens', (
+    tester,
+  ) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        locale: const Locale('en'),
+        localizationsDelegates: AppLocalizations.localizationsDelegates,
+        supportedLocales: AppLocalizations.supportedLocales,
+        home: const Scaffold(
+          body: QualitySheet(qualities: ['AUTO', '720P', '1080P']),
+        ),
+      ),
+    );
+
+    expect(find.text('Auto'), findsOneWidget);
+    expect(find.text('720P'), findsOneWidget);
+    expect(find.text('1080P'), findsOneWidget);
+    expect(find.byIcon(Icons.check_rounded), findsOneWidget);
+    expect(
+      find.text('HLS adjusts the bitrate automatically for your connection.'),
+      findsOneWidget,
+    );
+  });
+}