From 31012ce8259874680640e26f5e3d50cbec604267 Mon Sep 17 00:00:00 2001
From: Davide Grilli <davide.grilli@outlook.com>
Date: Tue, 7 Jul 2026 16:25:47 +0200
Subject: [PATCH] test(net): cover ElectrumClient's multi-segment response
 dispatch

DispatchLine's ArrayPool-copy path (for a JSON-RPC line spanning
multiple PipeReader segments) only ran for small responses in existing
tests, which stay single-segment. A 256 KB fake response forces the
multi-segment branch and verifies the payload still arrives intact.
---
 .../Net/ElectrumClientTests.cs                    | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/tests/PalladiumWallet.Tests/Net/ElectrumClientTests.cs b/tests/PalladiumWallet.Tests/Net/ElectrumClientTests.cs
index 7fc90ae..7b1256d 100644
--- a/tests/PalladiumWallet.Tests/Net/ElectrumClientTests.cs
+++ b/tests/PalladiumWallet.Tests/Net/ElectrumClientTests.cs
@@ -98,6 +98,21 @@ public class ElectrumClientTests
         await disconnected.Task.WaitAsync(Timeout);
     }
 
+    [Fact]
+    public async Task Una_risposta_molto_grande_arriva_integra()
+    {
+        // A payload far beyond the PipeReader's segment size forces the
+        // multi-segment dispatch path (ArrayPool copy) instead of the fast span.
+        var big = new string('x', 256 * 1024);
+        await using var server = new FakeElectrumServer();
+        server.Handle("blockchain.transaction.get", _ => big);
+
+        await using var client = await ElectrumClient.ConnectAsync(server.Host, server.Port, useSsl: false);
+
+        var result = await client.GetTransactionAsync("00").WaitAsync(Timeout);
+        Assert.Equal(big, result);
+    }
+
     [Fact]
     public async Task La_cancellazione_del_token_annulla_la_richiesta_pendente()
     {