From a654f890edfb9e1ddc8e56309411ba00f4b45e03 Mon Sep 17 00:00:00 2001
From: Miguel Company <miguelcompany@eprosima.com>
Date: Fri, 7 Jun 2024 08:49:08 +0200
Subject: [PATCH] Refs #21120. Improve test
 `sample_lost_be_dw_be_dr_fragments`.

Signed-off-by: Miguel Company <miguelcompany@eprosima.com>
---
 test/blackbox/common/DDSBlackboxTestsListeners.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/test/blackbox/common/DDSBlackboxTestsListeners.cpp b/test/blackbox/common/DDSBlackboxTestsListeners.cpp
index 8ac638d0809..f3c3b7f4500 100644
--- a/test/blackbox/common/DDSBlackboxTestsListeners.cpp
+++ b/test/blackbox/common/DDSBlackboxTestsListeners.cpp
@@ -22,6 +22,7 @@
 #include <fastdds/dds/domain/DomainParticipantFactory.hpp>
 #include <fastdds/LibrarySettings.hpp>
 #include <fastdds/rtps/transport/test_UDPv4TransportDescriptor.h>
+#include <fastdds/rtps/transport/UDPv4TransportDescriptor.h>
 #include <rtps/messages/CDRMessage.hpp>
 
 #include "BlackboxTests.hpp"
@@ -777,7 +778,13 @@ void sample_lost_test_dr_init(
         PubSubReader<T>& reader,
         std::function<void(const eprosima::fastdds::dds::SampleLostStatus& status)> functor)
 {
-    reader.sample_lost_status_functor(functor)
+    auto udp_transport = std::make_shared<UDPv4TransportDescriptor>();
+    udp_transport->sendBufferSize = SAMPLE_LOST_TEST_BUFFER_SIZE;
+    udp_transport->receiveBufferSize = SAMPLE_LOST_TEST_BUFFER_SIZE;
+
+    reader.disable_builtin_transport()
+            .add_user_transport_to_pparams(udp_transport)
+            .sample_lost_status_functor(functor)
             .init();
 
     ASSERT_TRUE(reader.isInitialized());