test/test_xml.rb

$LOAD_PATH << File.dirname(__FILE__)
require 'test_helper'
require 'open-uri'

begin
  require 'hpricot'

  class XmlTest < Test::Unit::TestCase
    def test_single_cons
      assert_equal_xml "<html> </html>", "(xml (html))"
    end
    
    def test_singly_nested_list
      assert_equal_xml("<html> <title> </title> </html>",
                       "(xml (html (title)))")
    end

    def test_list_with_string
      assert_equal_xml("<html> <title> Hello </title> </html>",
                       "(xml (html (title \"Hello\")))")

    end

    def test_list_with_symbol
      assert_equal_xml("<a href=\"http://bus-scheme.rubyforge.org\"> Bus Scheme</a>",
                       "(xml (a href \"http://bus-scheme.rubyforge.org\" \"Bus Scheme\"))")
    end

    def test_list_with_symbol_and_child
      assert_equal_xml("<div id=\"container\"> <p> hi </p> </div>",
                       "(xml (div id \"container\" (p \"hi\")))")
    end
    
    def test_splash_page_generation
      sexp = '(html
		(head
		 (title "Concourse"))
		(body
		 (div id "container"
		      (h1 "Welcome to Concourse!")
		      (p "Concourse is ...")
		      (form action "/login"
			    (input type "text" name "email")
			    (input type "password" name "password")
			    (input type "submit" value "Log in")))))'
      xml_text = "<html> <head> <title> Concourse </title> </head>
<body> <div id=\"container\"> <h1> Welcome to Concourse! </h1>
<p> Concourse is ... </p>
<form action=\"/login\">
  <input name=\"email\" type=\"text\" />
  <input name=\"password\" type=\"password\" />
  <input type=\"submit\" value=\"Log in\" />
</form>
</div> </body> </html>"
      assert_equal_xml xml_text, "(xml #{sexp})"
    end

    def test_extract_attributes
      assert_equal({:foo.sym => 2, :bar.sym => 4},
                   Xml.extract_attributes([:foo.sym, 2, :bar.sym, 4].sexp))
    end
    
    private
    def assert_equal_xml(expected, actual, message = nil)
      # TODO: whitespace handling could be better
      assert_equal(Hpricot(expected).to_s.gsub(/\s+/, ' ').strip,
                   Hpricot(eval!(actual)).to_s.gsub(/\s+/, ' ').strip,
                   message)
    end
  end

rescue LoadError
  puts "Can't test XML generation without Hpricot; sorry."
end