adds test for routine yac_generate_cubed_sphere_basic_grid

tests/utils/test_generate_cubed_sphere.c

@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: BSD-3-Clause
 
 #include <unistd.h>
+#include <string.h>
 
 #include "tests.h"
 #include "generate_cubed_sphere.h"
@@ -31,6 +32,24 @@ int main(void) {
     yac_basic_grid_data_free(cube_grid);
   }
 
+  {
+    unsigned n = 10;
+
+    struct yac_basic_grid * cube_grid =
+      yac_generate_cubed_sphere_basic_grid("cube_10", n);
+
+    if (yac_basic_grid_get_data_size(cube_grid, YAC_LOC_CELL) != n * n * 6)
+      PUT_ERR("ERROR: wrong number of cells\n");
+
+    if (yac_basic_grid_get_data_size(cube_grid, YAC_LOC_CORNER) != n * n * 6 + 2)
+      PUT_ERR("ERROR: wrong number of grid vertices\n")
+
+    if (strcmp(yac_basic_grid_get_name(cube_grid), "cube_10"))
+      PUT_ERR("ERROR: wrong name\n");
+
+    yac_basic_grid_delete(cube_grid);
+  }
+
   {
     unsigned n = 32;
     unsigned ref_num_core_cells = n * n * 6;