spec.rb in ruby-marc-spec-0.1.2

- old
+ new

@@ -7,21 +7,27 @@
       def find(query_string, marc_record)
         root = parse_query(query_string)
         execute_query(root, marc_record)
       end
 
+      def exists?(query_string, marc_record)
+        root = parse_query(query_string)
+        executor = executor_for(root, marc_record)
+        executor.any_results?
+      end
+
       def parse_query(query_string)
         parse_tree = parser.parse(query_string, reporter: reporter)
         xform_result = xform.apply(parse_tree)
         # TODO: unify these?
         xform_result.is_a?(Queries::Query) ? xform_result : Queries::Query.new(tag: xform_result)
       rescue Parslet::ParseFailed => e
         raise ArgumentError, "Unable to parse query: #{query_string.inspect}: #{e}"
       end
 
       def execute_query(query, marc_record)
-        executor = Queries::QueryExecutor.new(marc_record, query)
+        executor = executor_for(query, marc_record)
         executor.execute
       end
 
       private
 
@@ -33,9 +39,13 @@
         @xform ||= Queries::Transform.new
       end
 
       def reporter
         @reporter ||= Parslet::ErrorReporter::Contextual.new
+      end
+
+      def executor_for(query, marc_record)
+        Queries::QueryExecutor.new(marc_record, query)
       end
     end
   end
 end