本阶段迁移已完成。

Excel：班级、账号、考生、缴费、考场、成绩、志愿、录取、报到及正式录取名册均改为 ClosedXML 原生处理，支持模板、校验、筛选和导入预检。[SystemWorkbook.cs](C:\\Users\\BI\\Documents\\EIS-dotnet\\src\\Eis.Infrastructure\\Spreadsheets\\SystemWorkbook.cs) 文书：录取通知书模板、成绩单/准考证/通知书业务数据与防伪验真已脱离 Node；保留现有前端排版导出效果。[AdminAdmissionService.Documents.cs](C:\\Users\\BI\\Documents\\EIS-dotnet\\src\\Eis.Infrastructure\\Administration\\AdminAdmissionService.Documents.cs) 缓存：完成 Redis 命名空间版本缓存、有界本地回退、请求合并和并发失效保护；公开数据及成绩写入后立即失效。[ApplicationCache.cs](C:\\Users\\BI\\Documents\\EIS-dotnet\\src\\Eis.Infrastructure\\Caching\\ApplicationCache.cs) 迁移清单已更新为完成。[MIGRATION.md](C:\\Users\\BI\\Documents\\EIS-dotnet\\MIGRATION.md)
2026-07-23 14:14:51 +08:00
parent 4df6303153
commit fea91a19af
24 changed files with 2209 additions and 35 deletions
@@ -0,0 +1,78 @@
+using System.Text.Json.Nodes;
+using Eis.Infrastructure.Caching;
+
+namespace Eis.Infrastructure.Tests.Caching;
+
+public sealed class ApplicationCacheTests
+{
+    [Fact]
+    public async Task RememberJsonAsync_CoalescesConcurrentLocalLoads()
+    {
+        using var cache = new ApplicationCache(redisUrl: null);
+        var calls = 0;
+        var release = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+
+        async Task<JsonObject> Load()
+        {
+            Interlocked.Increment(ref calls);
+            await release.Task;
+            return new JsonObject { ["value"] = 42 };
+        }
+
+        var first = cache.RememberJsonAsync("public", "home", Load);
+        var second = cache.RememberJsonAsync("public", "home", Load);
+        release.SetResult();
+
+        var values = await Task.WhenAll(first, second);
+
+        Assert.Equal(1, calls);
+        Assert.All(values, value => Assert.Equal(42, value["value"]!.GetValue<int>()));
+    }
+
+    [Fact]
+    public async Task InvalidateAsync_DropsLocalNamespaceWithoutAffectingOthers()
+    {
+        using var cache = new ApplicationCache(redisUrl: null);
+        var publicCalls = 0;
+        var resultCalls = 0;
+
+        Task<JsonObject> PublicLoader() =>
+            Task.FromResult(new JsonObject { ["generation"] = ++publicCalls });
+        Task<JsonObject> ResultLoader() =>
+            Task.FromResult(new JsonObject { ["generation"] = ++resultCalls });
+
+        _ = await cache.RememberJsonAsync("public", "home", PublicLoader);
+        _ = await cache.RememberJsonAsync("results", "candidate:1", ResultLoader);
+        Assert.False(await cache.InvalidateAsync("public"));
+        var publicValue = await cache.RememberJsonAsync("public", "home", PublicLoader);
+        var resultValue = await cache.RememberJsonAsync("results", "candidate:1", ResultLoader);
+
+        Assert.Equal(2, publicValue["generation"]!.GetValue<int>());
+        Assert.Equal(1, resultValue["generation"]!.GetValue<int>());
+    }
+
+    [Fact]
+    public async Task InvalidateAsync_PreventsInFlightLoadFromRepopulatingOldGeneration()
+    {
+        using var cache = new ApplicationCache(redisUrl: null);
+        var release = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+        var calls = 0;
+        async Task<JsonObject> SlowLoader()
+        {
+            var value = Interlocked.Increment(ref calls);
+            await release.Task;
+            return new JsonObject { ["generation"] = value };
+        }
+
+        var staleLoad = cache.RememberJsonAsync("public", "home", SlowLoader);
+        _ = await cache.InvalidateAsync("public");
+        var refreshed = await cache.RememberJsonAsync(
+            "public",
+            "home",
+            () => Task.FromResult(new JsonObject { ["generation"] = Interlocked.Increment(ref calls) }));
+        release.SetResult();
+        _ = await staleLoad;
+
+        Assert.Equal(2, refreshed["generation"]!.GetValue<int>());
+    }
+}