Makes have_tag work outside of Merb.

History.txt

@@ -37,6 +37,7 @@
 
 * Minor enhancements
 
+  * have_tag and the corresponding asserts work outside of merb, including selenium mode. (Amos King) 
   * Create tmp/pids directory if directory does not exist. (Amos King)
   * Added Selenium grid configuration and support. (Amos King && Cornel Borcean)
   * Support passing an ActiveRecord model to #within when in Rails mode [#68] (Luke Melia)

lib/webrat/selenium/matchers.rb

@@ -1,4 +1,4 @@
 require "webrat/selenium/matchers/have_xpath"
 require "webrat/selenium/matchers/have_selector"
-# require "webrat/core/matchers/have_tag"
+require "webrat/selenium/matchers/have_tag"
 require "webrat/selenium/matchers/have_content"

lib/webrat/selenium/matchers/have_tag.rb

@@ -0,0 +1,72 @@
+module Webrat
+  module Selenium
+    module Matchers
+  
+      class HaveTag < HaveSelector #:nodoc:
+        # ==== Returns
+        # String:: The failure message.
+        def failure_message
+          "expected following output to contain a #{tag_inspect} tag:\n#{@document}"
+        end
+  
+        # ==== Returns
+        # String:: The failure message to be displayed in negative matches.
+        def negative_failure_message
+          "expected following output to omit a #{tag_inspect}:\n#{@document}"
+        end
+  
+        def tag_inspect
+          options = @expected.last.dup
+          content = options.delete(:content)
+  
+          html = "<#{@expected.first}"
+          options.each do |k,v|
+            html << " #{k}='#{v}'"
+          end
+  
+          if content
+            html << ">#{content}</#{@expected.first}>"
+          else
+            html << "/>"
+          end
+  
+          html
+        end
+  
+        def query
+          options  = @expected.last.dup
+          selector = @expected.first.to_s
+  
+          selector << ":contains('#{options.delete(:content)}')" if options[:content]
+  
+          options.each do |key, value|
+            selector << "[#{key}='#{value}']"
+          end
+  
+          Nokogiri::CSS::Parser.parse(selector).map { |ast| ast.to_xpath }
+        end
+      end
+  
+      def have_tag(name, attributes = {}, &block)
+        HaveTag.new([name, attributes], &block)
+      end
+      
+      alias_method :match_tag, :have_tag
+      
+      # Asserts that the body of the response contains
+      # the supplied tag with the associated selectors
+      def assert_have_tag(name, attributes = {})
+        ht = HaveTag.new([name, attributes])
+        assert ht.matches?(response), ht.failure_message
+      end
+      
+      # Asserts that the body of the response
+      # does not contain the supplied string or regepx
+      def assert_have_no_tag(name, attributes = {})
+        ht = HaveTag.new([name, attributes])
+        assert !ht.matches?(response), ht.negative_failure_message
+      end
+  
+    end
+  end
+end