feat(store-and-forward): GetAllMessagesAsync/ReplaceAllAsync storage primitives for standby buffer resync

2026-07-08 21:22:25 -04:00
parent c6ea332c94
commit 3eef9d1077
2 changed files with 130 additions and 15 deletions
@@ -748,4 +748,46 @@ public class StoreAndForwardStorageTests : IAsyncLifetime, IDisposable
        var result = await cmd.ExecuteScalarAsync();
        return result is DBNull ? null : result;
    }
+
+    // ── Task 20: buffer-resync storage primitives ──
+
+    private static StoreAndForwardMessage NewMsg(
+        string id,
+        StoreAndForwardMessageStatus status = StoreAndForwardMessageStatus.Pending,
+        DateTimeOffset? createdAt = null) => new()
+    {
+        Id = id,
+        Category = StoreAndForwardCategory.ExternalSystem,
+        Target = "t",
+        PayloadJson = "{}",
+        RetryCount = 0,
+        MaxRetries = 50,
+        RetryIntervalMs = 30000,
+        CreatedAt = createdAt ?? DateTimeOffset.UtcNow,
+        Status = status,
+    };
+
+    [Fact]
+    public async Task GetAllMessages_ReturnsEveryStatus_OldestFirst_UpToLimit()
+    {
+        var @base = DateTimeOffset.UtcNow;
+        await _storage.EnqueueAsync(NewMsg("p1", StoreAndForwardMessageStatus.Pending, @base));
+        await _storage.EnqueueAsync(NewMsg("k1", StoreAndForwardMessageStatus.Parked, @base.AddSeconds(1)));
+        await _storage.EnqueueAsync(NewMsg("p2", StoreAndForwardMessageStatus.Pending, @base.AddSeconds(2)));
+
+        var (all, truncated) = await _storage.GetAllMessagesAsync(limit: 2);
+        Assert.Equal(new[] { "p1", "k1" }, all.Select(m => m.Id)); // every status, oldest-first
+        Assert.True(truncated); // a third row exists beyond the limit
+    }
+
+    [Fact]
+    public async Task ReplaceAll_SwapsTheEntireBuffer_Atomically()
+    {
+        await _storage.EnqueueAsync(NewMsg("stale"));
+        await _storage.ReplaceAllAsync(new[] { NewMsg("fresh-1"), NewMsg("fresh-2") });
+
+        Assert.Null(await _storage.GetMessageByIdAsync("stale"));
+        Assert.NotNull(await _storage.GetMessageByIdAsync("fresh-1"));
+        Assert.NotNull(await _storage.GetMessageByIdAsync("fresh-2"));
+    }
 }