diff --git a/cmake/testing/code/req-vert-s.c b/cmake/testing/code/req-vert-s.c
new file mode 100644
index 000000000..a216ce3e5
--- /dev/null
+++ b/cmake/testing/code/req-vert-s.c
@@ -0,0 +1,135 @@
+/* =============================================================================
+** This file is part of the mmg software package for the tetrahedral
+** mesh modification.
+** Copyright (c) Bx INP/Inria/UBordeaux/UPMC, 2004- .
+**
+** mmg is free software: you can redistribute it and/or modify it
+** under the terms of the GNU Lesser General Public License as published
+** by the Free Software Foundation, either version 3 of the License, or
+** (at your option) any later version.
+**
+** mmg is distributed in the hope that it will be useful, but WITHOUT
+** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+** FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+** License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public
+** License and of the GNU General Public License along with mmg (in
+** files COPYING.LESSER and COPYING). If not, see
+** . Please read their terms carefully and
+** use this copy of the mmg distribution only if you accept them.
+** =============================================================================
+*/
+
+/**
+ * Test preservation of required vertex: vertex 1 is required and shoule not move.
+ *
+ * \author Charles Dapogny (LJLL, UPMC)
+ * \author Cécile Dobrzynski (Inria / IMB, Université de Bordeaux)
+ * \author Pascal Frey (LJLL, UPMC)
+ * \author Algiane Froehly (Inria / IMB, Université de Bordeaux)
+ * \version 5
+ * \copyright GNU Lesser General Public License.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/** Include the mmg3d library hader file */
+// if the header file is in the "include" directory
+// #include "libmmg3d.h"
+// if the header file is in "include/mmg/mmg3d"
+#include "libmmgs_private.h"
+#include "mmg/mmgs/libmmgs.h"
+
+int main(int argc,char *argv[]) {
+ MMG5_pMesh mesh;
+ MMG5_pSol sol;
+ char *file;
+ double c[3];
+ int k,ier;
+
+ fprintf(stdout," -- CHECK PRESERVATION OF REQUIRED VERTICES \n");
+
+ if ( argc != 2 ) {
+ printf(" Usage: %s filein \n",argv[0]);
+ return(1);
+ }
+
+ /* Name and path of the mesh file */
+ file = (char *) calloc(strlen(argv[1]) + 1, sizeof(char));
+ if ( file == NULL ) {
+ perror(" ## Memory problem: calloc");
+ exit(EXIT_FAILURE);
+ }
+ strcpy(file,argv[1]);
+
+ /** Read mesh */
+ mesh = NULL;
+ sol = NULL;
+ MMGS_Init_mesh(MMG5_ARG_start,
+ MMG5_ARG_ppMesh,&mesh,
+ MMG5_ARG_ppMet,&sol,
+ MMG5_ARG_end);
+
+ if ( MMGS_loadMesh(mesh,file) != 1 ) {
+ fprintf(stderr,"Error: %s: %d: File not found %s\n.",__func__,__LINE__,file);
+ exit(EXIT_FAILURE);
+ }
+
+ /** Check that vertex number 1 is required and store its coordinates */
+ if ( !(mesh->point[1].tag & MG_REQ) ) {
+ fprintf(stderr,"Error: %s: %d: This test expects that vertex of index 1 is required\n.",__func__,__LINE__);
+ exit(EXIT_FAILURE);
+ }
+ c[0] = mesh->point[1].c[0];
+ c[1] = mesh->point[1].c[1];
+ c[2] = mesh->point[1].c[2];
+
+ /** Enable vertex regularisation */
+ if ( MMGS_Set_iparameter(mesh,sol,MMGS_IPARAM_xreg,1) != 1 )
+ exit(EXIT_FAILURE);
+
+ /** remesh function */
+ ier = MMGS_mmgslib(mesh,sol);
+
+
+ /** Check that coordinates of vertex 1 (that is required) have not changed. */
+ double dd[3];
+ dd[0] = c[0] - mesh->point[1].c[0];
+ dd[1] = c[1] - mesh->point[1].c[1];
+ dd[2] = c[2] - mesh->point[1].c[2];
+
+
+ int j;
+ for (j=0; j<3; ++j) {
+ printf("%.15lf %.15lf\n",c[j],mesh->point[1].c[j]);
+ if ( fabs(c[j]- mesh->point[1].c[j]) > 1e-5 ) {
+ fprintf(stderr,"Error: %s: %d:"
+ " Modification of coordinates of vertex 1 (required):"
+ " input coor: %15lf %15lf %15lf\n"
+ " output coor: %15lf %15lf %15lf\n",__func__,__LINE__,
+ c[0],c[1],c[2], mesh->point[1].c[0], mesh->point[1].c[1], mesh->point[1].c[2]);
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ fprintf(stdout,"MMGS: REQUIRED VERTEX SUCCESFULLY PRESERVED.\n");
+
+ /** 3) Free the MMG structures */
+ MMGS_Free_all(MMG5_ARG_start,
+ MMG5_ARG_ppMesh,&mesh,
+ MMG5_ARG_ppMet,&sol,
+ MMG5_ARG_end);
+
+ free(file);
+ file = NULL;
+
+ return 0;
+}
diff --git a/cmake/testing/libmmgs_tests.cmake b/cmake/testing/libmmgs_tests.cmake
index 4e940d671..549b5f74f 100644
--- a/cmake/testing/libmmgs_tests.cmake
+++ b/cmake/testing/libmmgs_tests.cmake
@@ -54,6 +54,24 @@ SET ( MMGS_LIB_TESTS_MAIN_PATH
${PROJECT_SOURCE_DIR}/libexamples/mmgs/IsosurfDiscretization_lsAndMetric/main.c
)
+# Additional tests that needs to download ci meshes
+IF ( MMGS_CI AND NOT ONLY_VERY_SHORT_TESTS )
+ LIST ( APPEND MMGS_LIB_TESTS
+ # Remark: not clean -> next tests don't need the library in fact (moving them
+ # in app tests will ask to clean the installation of public and private
+ # headers, it will ask to sort the needed source files too). Added here, we
+ # can use the ADD_LIBRARY_TEST macro...
+ test_req-vert-s
+ )
+
+ LIST ( APPEND MMGS_LIB_TESTS_MAIN_PATH
+ # Following pieces of code are left in repo to take advantage of versionning
+ ${PROJECT_SOURCE_DIR}/cmake/testing/code/req-vert-s.c
+
+ )
+ENDIF ( )
+
+
IF ( LIBMMGS_STATIC )
SET ( lib_name lib${PROJECT_NAME}s_a )
SET ( lib_type "STATIC" )
@@ -149,6 +167,13 @@ ADD_TEST(NAME libmmgs_lsAndMetric
"${CTEST_OUTPUT_DIR}/libmmgs_lsAndMetric_multimat.o"
)
+IF ( MMGS_CI AND NOT ONLY_VERY_SHORT_TESTS )
+ ADD_TEST(NAME test_req-vert-s
+ COMMAND ${EXECUTABLE_OUTPUT_PATH}/test_req-vert-s
+ ${MMGS_CI_TESTS}/test_req_vert/cube.mesh
+ )
+ENDIF ( )
+
IF ( CMAKE_Fortran_COMPILER AND PERL_FOUND )
SET(LIBMMGS_EXECFORTRAN_a ${EXECUTABLE_OUTPUT_PATH}/libmmgs_fortran_a)
SET(LIBMMGS_EXECFORTRAN_b ${EXECUTABLE_OUTPUT_PATH}/libmmgs_fortran_b)