improves test coverage of config_yaml

input/coupling_test6.json

@@ -9,7 +9,10 @@
       "tgt_component": "comp_B",
       "src_grid": "grid_A",
       "tgt_grid": "grid_B",
-      "field": "A_to_B",
+      "field": {
+        "src": "A_to_B_src",
+        "tgt": "A_to_B_tgt"
+        },
       "coupling_period": "PT01.000S",
       "time_reduction": "none",
       "src_lag": 0,

src/config_yaml.c

@@ -971,7 +971,6 @@ static struct field_couple_field_names yaml_parse_field_name(
 
   // if the node contains different names for the source and target field
   } else {
-
     field_name.src =
       fy_node_mapping_lookup_scalar0_by_simple_key(
         field_node, "src", -1);

tests/test_dummy_coupling6.f90

@@ -203,7 +203,7 @@ CONTAINS
 
     ! define field
     CALL yac_fdef_field( &
-      'A_to_B', comp_id, (/cell_point_id/), 1, 1, "1", YAC_TIME_UNIT_SECOND, &
+      'A_to_B_src', comp_id, (/cell_point_id/), 1, 1, "1", YAC_TIME_UNIT_SECOND, &
       field_id)
     CALL yac_fdef_field( &
       'A_to_B_multi', comp_id, (/cell_point_id, vertex_point_id/), 2, &
@@ -308,7 +308,7 @@ CONTAINS
 
     ! define field
     CALL yac_fdef_field( &
-      'A_to_B', comp_id, (/point_id_B/), 1, 1, "1", YAC_TIME_UNIT_SECOND, &
+      'A_to_B_tgt', comp_id, (/point_id_B/), 1, 1, "1", YAC_TIME_UNIT_SECOND, &
       field_id)
     CALL yac_fdef_field( &
       'A_to_B_multi', comp_id, (/point_id_B/), 1, 1, "1", YAC_TIME_UNIT_SECOND, &

tests/test_dummy_coupling6_c.c

@@ -166,7 +166,7 @@ static void run_comp_a() {
   int field_id, multi_field_id;
   int collection_size = 1;
   yac_cdef_field(
-    "A_to_B", comp_id, &cell_point_id, 1, collection_size, "1",
+    "A_to_B_src", comp_id, &cell_point_id, 1, collection_size, "1",
     YAC_TIME_UNIT_SECOND, &field_id);
   int multi_field_point_ids[2], multi_field_mask_ids[2];
   multi_field_point_ids[0] = cell_point_id;
@@ -266,7 +266,7 @@ static void run_comp_b() {
   int field_id, multi_field_id;
   int collection_size = 1;
   yac_cdef_field(
-    "A_to_B", comp_id, &point_id_B, 1, collection_size, "1",
+    "A_to_B_tgt", comp_id, &point_id_B, 1, collection_size, "1",
     YAC_TIME_UNIT_SECOND, &field_id);
   yac_cdef_field(
     "A_to_B_multi", comp_id, &point_id_B, 1, collection_size, "1",