1 files changed, 44 insertions, 0 deletions
diff --git a/tests/FundLab.Api.Tests/CashReconciliationTests.fs b/tests/FundLab.Api.Tests/CashReconciliationTests.fs
index b9b024a..fa14bff 100644
--- a/tests/FundLab.Api.Tests/CashReconciliationTests.fs
+++ b/tests/FundLab.Api.Tests/CashReconciliationTests.fs
@@ -542,3 +542,47 @@ type CashReconciliationTests(fixture: PostgresFixture) =
         Assert.Equal(-520.00m, internalTotal)
         Assert.Equal(3880.00m, externalTotal + internalTotal)
         Assert.Equal(0.00m, (repository().GetCashReconciliation fundId |> Result.defaultWith failwith).Difference)
+
+    [<Fact>]
+    member _.``a subscription confirmed at the 2026-09-22 nav date reconciles to zero``() =
+        let fundId = createFund 10000.00m
+        let code = seedInstrument ()
+        let tradeDate = DateOnly(2026, 9, 22)
+        insertQuoteOnDate code 1.327m tradeDate
+
+        let order =
+            match
+                repository().CreateSubscriptionOrder(
+                    fixture.Key "cash-tday-order",
+                    fundId,
+                    { FundCode = code; Amount = 1000.00m; FeeAmount = 0m },
+                    tradeDate
+                )
+            with
+            | SubscriptionOrderWriteResult.OrderCreated order -> order
+            | other -> failwithf "unexpected subscription order result: %A" other
+
+        match
+            repository().ConfirmSubscriptionOrder(
+                fixture.Key "cash-tday-confirm",
+                fundId,
+                order.Id
+            )
+        with
+        | SubscriptionConfirmResult.OrderConfirmed confirmed ->
+            match confirmed.ConfirmedQuote with
+            | Some quote ->
+                Assert.Equal(tradeDate, quote.NavDate)
+                Assert.Equal(1.327m, quote.Nav)
+            | None -> failwith "confirmed quote evidence missing"
+        | other -> failwithf "unexpected subscription confirm: %A" other
+
+        let status, body = reconciliation fundId
+        Assert.Equal(200, status)
+        Assert.Contains("\"openingCash\":\"10000.00\"", body)
+        Assert.Contains("\"difference\":\"0.00\"", body)
+        Assert.Equal(1, eventCount body "subscription")
+
+        // the confirmed subscription is an external outflow that fully explains cash
+        let subscriptionNet = sourceNet body "subscription"
+        Assert.True(subscriptionNet < 0m, sprintf "expected subscription outflow, got %M" subscriptionNet)