Test amount of Spanish EC Operation List without digits

issue9221

tests/scenario_ec_operation_list.rst

@@ -145,5 +145,5 @@ Operation appears in report with amount zero::
 
     >>> with config.set_context(context):
     ...     record, = ECOperationList.find([])
-    >>> record.amount
-    Decimal('0.0')
+    >>> record.amount == Decimal('0.0')
+    True