test(reconciliation): pin inclusive (>=) cursor reads at the site (audit + site-calls); EventId/upsert dedup absorbs boundary duplicates

2026-07-08 21:58:57 -04:00
parent 846279f6a8
commit ae94b22d7d
2 changed files with 61 additions and 0 deletions
@@ -712,4 +712,26 @@ public class SqliteAuditWriterWriteTests
        var row = Assert.Single(rows);
        Assert.Equal(AuditOutcome.Success, row.Outcome);
    }
+
+    // ── Task 24: pin the inclusive (>=) reconciliation cursor boundary ──
+
+    [Fact]
+    public async Task ReadPendingSince_BoundaryTimestamp_IsInclusive_EventIdDedupAbsorbsDuplicates()
+    {
+        // Two rows share one OccurredAtUtc; a pull whose sinceUtc equals that
+        // timestamp MUST return both (inclusive >= read). Central reconciliation
+        // dedups on EventId (insert-if-not-exists), so re-reading the boundary row
+        // is a safe no-op — but an exclusive (>) read would silently and
+        // permanently lose the same-timestamp row. This test pins the >= contract.
+        var (writer, _) = CreateWriter(nameof(ReadPendingSince_BoundaryTimestamp_IsInclusive_EventIdDedupAbsorbsDuplicates));
+        await using var _w = writer;
+
+        var boundary = DateTime.UtcNow;
+        await writer.WriteAsync(NewEvent(id: Guid.NewGuid(), occurredAtUtc: boundary));
+        await writer.WriteAsync(NewEvent(id: Guid.NewGuid(), occurredAtUtc: boundary));
+
+        var rows = await writer.ReadPendingSinceAsync(boundary, batchSize: 10);
+
+        Assert.Equal(2, rows.Count);
+    }
 }