Add tests for SubItemArrayPerItemVariant checkpointing

src/utils/checkpointing/ReadSubItemArrayPerItemVariant.cpp

@@ -72,11 +72,15 @@ readSubItemArrayPerItemVariant(const HighFive::Group& sub_item_array_per_item_va
         readSubItemArrayPerItem<TinyMatrix<3>, item_type, sub_item_type>(sub_item_array_per_item_variant_group,
                                                                          "arrays", connectivity));
     } else {
+      // LCOV_EXCL_START
       throw UnexpectedError("unexpected discrete function data type: " + data_type);
+      // LCOV_EXCL_STOP
     }
     return p_sub_item_array_per_item_variant;
   } else {
+    // LCOV_EXCL_START
     throw UnexpectedError("item_type and sub_item_type must be different");
+    // LCOV_EXCL_STOP
   }
 }
 

tests/CMakeLists.txt

@@ -177,6 +177,7 @@ if(PUGS_HAS_HDF5)
     test_checkpointing_IWriter.cpp
     test_checkpointing_IZoneDescriptor.cpp
     test_checkpointing_Mesh.cpp
+    test_checkpointing_SubItemArrayPerItemVariant.cpp
     test_checkpointing_SubItemValuePerItemVariant.cpp
     test_checkpointing_Table.cpp
   )

tests/test_checkpointing_ItemArrayVariant.cpp

@@ -34,12 +34,6 @@ check_is_same(const ItemArray<DataType, item_type>& reference, const EmbeddedDat
           same &= (a(i, j) == b(i, j));
         }
       }
-    } else {
-      same = false;
-    }
-
-    if (not same) {
-      throw UnexpectedError("a!=b");
     }
 
     return parallel::allReduceAnd(same);