From f0bbe50e335aad0e0f6460075cabf416209075c5 Mon Sep 17 00:00:00 2001
From: bruno <97033386+bruno-at-orange@users.noreply.github.com>
Date: Thu, 3 Apr 2025 10:49:37 +0200
Subject: [PATCH] Fix Unit Test framework

MPI Unit Tests were actually not launched with mpi.
A cherry-pick from dev fixes it
---
 test/UnitTests/Parallel-mpi/CMakeLists.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/UnitTests/Parallel-mpi/CMakeLists.txt b/test/UnitTests/Parallel-mpi/CMakeLists.txt
index 87a26991b..11533a1a3 100644
--- a/test/UnitTests/Parallel-mpi/CMakeLists.txt
+++ b/test/UnitTests/Parallel-mpi/CMakeLists.txt
@@ -12,3 +12,12 @@ target_include_directories(parallel_mpi_test PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 target_compile_options(parallel_mpi_test PUBLIC ${GTEST_CFLAGS})
 include(GoogleTest)
 gtest_discover_tests(parallel_mpi_test)
+
+# Add the same test in CTest framework. It allows to run the test directly with the right mpi command. The command
+# "ctest --preset linux-gcc-release -L mpi" will run (depending on the mpi implementation and the core number): mpiexec
+# -n 8  build/linux-gcc-release/parallel_mpi_test
+add_test(NAME ctest_parallel_mpi_test COMMAND ${MPIEXEC_EXECUTABLE} ${MPIEXEC_NUMPROC_FLAG} ${MPIEXEC_MAX_NUMPROCS}
+                                              ${MPIEXEC_PREFLAGS} $<TARGET_FILE:parallel_mpi_test> ${MPIEXEC_POSTFLAGS})
+
+# Add "mpi" label to the test
+set_tests_properties(ctest_parallel_mpi_test PROPERTIES LABELS "mpi")