fix bug where render_template would match 'newer' for 'new'

lib/spec/rails/matchers/render_template.rb

@@ -33,7 +33,16 @@ def matches?(response_or_controller)
           return false if @actual.blank?
           given_controller_path, given_file = path_and_file(@actual)
           expected_controller_path, expected_file = path_and_file(@expected)
-          given_controller_path == expected_controller_path && given_file.match(expected_file)
+          given_controller_path == expected_controller_path && match_files(given_file, expected_file)
+        end
+
+        def match_files(actual, expected)
+          actual_parts = actual.split('.')
+          expected_parts = expected.split('.')
+          expected_parts.each_with_index do |expected_part, index|
+            return false unless expected_part == actual_parts[index]
+          end
+          true
         end
 
         def failure_message_for_should

spec/spec/rails/matchers/render_template_spec.rb

@@ -16,6 +16,11 @@
         should render_template('some_action')
       end
 
+      it "does not match an action that is a truncated version of the actual action" do
+        post 'some_action'
+        should_not render_template('some_actio')
+      end
+
       if ::Rails::VERSION::STRING >= '2.3'
         it "matches an action with specified extenstions (implicit format)" do
           post 'some_action'