Silence warning: instance variable @selected not initialized

actionpack/lib/action_controller/assertions/selector_assertions.rb

@@ -16,14 +16,20 @@ module Assertions
     #
     # Use +css_select+ to select elements without making an assertions, either
     # from the response HTML or elements selected by the enclosing assertion.
-    # 
+    #
     # In addition to HTML responses, you can make the following assertions:
     # * +assert_select_rjs+ - Assertions on HTML content of RJS update and insertion operations.
     # * +assert_select_encoded+ - Assertions on HTML encoded inside XML, for example for dealing with feed item descriptions.
     # * +assert_select_email+ - Assertions on the HTML body of an e-mail.
     #
     # Also see HTML::Selector to learn how to use selectors.
     module SelectorAssertions
+
+      def initialize(*args)
+        super
+        @selected = nil
+      end
+
       # :call-seq:
       #   css_select(selector) => array
       #   css_select(element, selector) => array
@@ -53,8 +59,8 @@ module SelectorAssertions
       #   end
       #
       #   # Selects all list items in unordered lists
-      #   items = css_select("ul>li") 
-      #      
+      #   items = css_select("ul>li")
+      #
       #   # Selects all form tags and then all inputs inside the form
       #   forms = css_select("form")
       #   forms.each do |form|
@@ -212,7 +218,7 @@ def assert_select(*args, &block)
           # Otherwise just operate on the response document.
           root = response_from_page_or_rjs
         end
-        
+
         # First or second argument is the selector: string and we pass
         # all remaining arguments. Array and we pass the argument. Also
         # accepts selector itself.
@@ -225,7 +231,7 @@ def assert_select(*args, &block)
             selector = arg
           else raise ArgumentError, "Expecting a selector as the first argument"
         end
-        
+
         # Next argument is used for equality tests.
         equals = {}
         case arg = args.shift
@@ -315,10 +321,10 @@ def assert_select(*args, &block)
         # Returns all matches elements.
         matches
       end
-      
+
       def count_description(min, max) #:nodoc:
         pluralize = lambda {|word, quantity| word << (quantity == 1 ? '' : 's')}
-        
+
         if min && max && (max != min)
           "between #{min} and #{max} elements"
         elsif min && !(min == 1 && max == 1)
@@ -327,7 +333,7 @@ def count_description(min, max) #:nodoc:
           "at most #{max} #{pluralize['element', max]}"
         end
       end
-      
+
       # :call-seq:
       #   assert_select_rjs(id?) { |elements| ... }
       #   assert_select_rjs(statement, id?) { |elements| ... }
@@ -344,7 +350,7 @@ def count_description(min, max) #:nodoc:
       # that update or insert an element with that identifier.
       #
       # Use the first argument to narrow down assertions to only statements
-      # of that type. Possible values are <tt>:replace</tt>, <tt>:replace_html</tt>, 
+      # of that type. Possible values are <tt>:replace</tt>, <tt>:replace_html</tt>,
       # <tt>:show</tt>, <tt>:hide</tt>, <tt>:toggle</tt>, <tt>:remove</tt> and
       # <tt>:insert_html</tt>.
       #
@@ -488,7 +494,7 @@ def assert_select_rjs(*args, &block)
       #       end
       #     end
       #   end
-      #   
+      #
       #
       #   # Selects all paragraph tags from within the description of an RSS feed
       #   assert_select_feed :rss, 2.0 do