From eced5afdf72f95948fdf81452528bfcd469cc23d Mon Sep 17 00:00:00 2001
From: Robert Schmidt <robert.schmidt@openairinterface.org>
Date: Tue, 28 Oct 2025 08:25:06 +0100
Subject: [PATCH] Add CU-UP functional test to ctest

Use the CU-UP load tester to test the functionality of the CU-UP and
its loader tester. The requirements on this load test are intentionally
low, as it will be run with other unit tests in parallel, and should
still pass.

It uses an existing configuration file for the CU-UP. The test script
runs the CU-UP, runs the load tester, stops the CU-UP, and returns the
load tester return value as test result (which will be 0=success if all
packets have been received).
---
 tests/nr-cuup/CMakeLists.txt             | 10 ++++++++++
 tests/nr-cuup/nr-cuup-functional-test.sh | 21 +++++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100755 tests/nr-cuup/nr-cuup-functional-test.sh

diff --git a/tests/nr-cuup/CMakeLists.txt b/tests/nr-cuup/CMakeLists.txt
index 02becb2496..9d48fd89e2 100644
--- a/tests/nr-cuup/CMakeLists.txt
+++ b/tests/nr-cuup/CMakeLists.txt
@@ -1,4 +1,14 @@
 add_executable(nr-cuup-load-test nr-cuup-load-test.c)
+add_dependencies(nr-cuup-load-test params_libconfig)
 target_link_libraries(nr-cuup-load-test PRIVATE GTPV1U ${T_LIB} utils ITTI e1ap
   SCTP_CLIENT)
 target_link_libraries(nr-cuup-load-test PRIVATE asn1_lte_rrc_hdrs asn1_nr_rrc_hdrs) # ITTI
+
+if(ENABLE_TESTS)
+  # we add also nr-cuup as it is required for the test
+  add_dependencies(tests nr-cuup-load-test nr-cuup)
+  add_test(NAME nr_cuup_functional_test
+           COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/nr-cuup-functional-test.sh ${CMAKE_CURRENT_SOURCE_DIR}/load-test.conf
+           WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+  )
+endif()
diff --git a/tests/nr-cuup/nr-cuup-functional-test.sh b/tests/nr-cuup/nr-cuup-functional-test.sh
new file mode 100755
index 0000000000..28a9b3779a
--- /dev/null
+++ b/tests/nr-cuup/nr-cuup-functional-test.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# this script takes one argument, which is the path to the CU-UP configuration
+if [ $# -ne 1 ]; then
+  echo "usage: $0 <cuup-config>"
+  exit 1
+fi
+
+CONFIG=$1
+
+set -x
+
+# current dir should be CMAKE_BINARY_DIR
+./nr-cuup -O ${CONFIG} &
+CUUP_PID=$!
+
+timeout 5s ./tests/nr-cuup/nr-cuup-load-test -t 3 -d 10 -u 10
+RET=$?
+
+kill ${CUUP_PID}
+exit ${RET}