Rails 2.0: Testing For Well-Formed XML With assert_well_formed
Here’s an easy way to validate that you’re always rendering well-formed HTML in an ordinary Rails application. I’ve written and verified this on Rails 2.0.1…
First, define the custom assert_well_formed assertion in your test_helper.rb, like so…
require 'rexml/document'
class Test::Unit::TestCase
def assert_well_formed
assert_block "HTTP response was not well-formed XML." do
begin
REXML::Document.new(@response.body)
true
rescue Exception => e
false
end
end
end
end
Then, in your functional test case, use it like this…
def test_index
set_basic_authentication
get :index
assert_well_formed
assert_response :success
end
That’s it!
Tags: fix, howto, rails, ruby, testing, xml
. 22 Dec 07 | Computer