gistfile1.rb

def test_form_for_deprecated
    assert_deprecated do
      form_for(:post, @post, :html => { :id => 'create-post' }) do |f|
        concat f.label(:title) { "The Title" }
        concat f.text_field(:title)
        concat f.text_area(:body)
        concat f.check_box(:secret)
        concat f.submit('Create post')
      end
    end

    expected =
      "<form accept-charset='UTF-8' action='http://www.example.com' id='create-post' method='post'>" +
      snowman +
      "<label for='post_title'>The Title</label>" +
      "<input name='post[title]' size='30' type='text' id='post_title' value='Hello World' />" +
      "<textarea name='post[body]' id='post_body' rows='20' cols='40'>Back to the hill and over it again!</textarea>" +
      "<input name='post[secret]' type='hidden' value='0' />" +
      "<input name='post[secret]' checked='checked' type='checkbox' id='post_secret' value='1' />" +
      "<input name='commit' id='post_submit' type='submit' value='Create post' />" +
      "</form>"

    assert_dom_equal expected, output_buffer
  end