#2271 address coverage

src/psyclone/domain/lfric/lfric_extract_driver_creator.py

@@ -594,10 +594,6 @@ def _sym_is_field(sym):
             else:
                 orig_sym = original_symbol_table.lookup(signature[0])
 
-            if orig_sym and isinstance(orig_sym, DataTypeSymbol):
-                # We don't want symbols representing data types.
-                continue
-
             if orig_sym and orig_sym.is_array and _sym_is_field(orig_sym):
                 # This is a field vector, so add all individual fields
                 upper = int(orig_sym.datatype.shape[0].upper.value)

src/psyclone/tests/core/single_variable_access_info_test.py

@@ -178,6 +178,11 @@ def test_variable_access_info():
     assert vai.is_read_only() is False
     assert vai.all_read_accesses == [vai[2]]
     assert vai.all_write_accesses == [vai[1], vai[3]]
+    # Check that we catch a case where there are no accesses at all.
+    vai = SingleVariableAccessInfo(Signature("var_name"))
+    with pytest.raises(InternalError) as err:
+        vai.change_read_to_write()
+    assert "but it does not have a 'READ' access" in str(err.value)
 
 
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