feat: implement hybrid cache store with singleflight

2026-03-20 15:23:56 +08:00
parent 035ca46bd0
commit 632db2b68b
5 changed files with 135 additions and 0 deletions
@@ -0,0 +1,27 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:social_app/core/cache/hybrid_cache_store.dart';
+import 'package:social_app/core/cache/memory_cache_store.dart';
+import 'package:social_app/core/cache/persistent_cache_store.dart';
+
+void main() {
+  test('same key concurrent load should execute loader once', () async {
+    var calls = 0;
+    final store = HybridCacheStore(
+      memory: MemoryCacheStore(),
+      persistent: PersistentCacheStore(),
+    );
+
+    Future<String> loader() async {
+      calls += 1;
+      await Future<void>.delayed(const Duration(milliseconds: 20));
+      return 'ok';
+    }
+
+    await Future.wait([
+      store.getOrLoad<String>('k', loader: loader),
+      store.getOrLoad<String>('k', loader: loader),
+    ]);
+
+    expect(calls, 1);
+  });
+}