lib/rubocop/cop/rspec/message_spies.rb in rubocop-rspec-1.20.1 vs lib/rubocop/cop/rspec/message_spies.rb in rubocop-rspec-1.21.0

@@ -29,12 +29,12 @@
 
         MSG_RECEIVE = 'Prefer `receive` for setting message '\
                       'expectations.'.freeze
 
         MSG_HAVE_RECEIVED = 'Prefer `have_received` for setting message '\
-                            'expectations. Setup `%s` as a spy using `allow`'\
-                            ' or `instance_spy`.'.freeze
+                            'expectations. Setup `%<source>s` as a spy using '\
+                            '`allow` or `instance_spy`.'.freeze
 
         SUPPORTED_STYLES = %w[have_received receive].freeze
 
         def_node_matcher :message_expectation, %(
           (send (send nil? :expect $_) {:to :to_not :not_to} ...)
@@ -71,10 +71,10 @@
         def error_message(receiver)
           case style
           when :receive
             MSG_RECEIVE
           when :have_received
-            MSG_HAVE_RECEIVED % receiver.source
+            format(MSG_HAVE_RECEIVED, source: receiver.source)
           end
         end
       end
     end
   end