Ruby on Rails
Assert Valid Markup Plugin

Handy assertion for your functional tests that checks your HTML/XHTML with the W3C Validator web service. If anything changes to invalidate your markup, you’ll know pronto. Responses from the web service are cached, so your tests aren’t slowed down unless something has changed. Provides both an instance method and a class method. Examples:

class FooControllerTest < Test::Unit::TestCase
    def test_foo_markup
        get :foo
        assert_valid_markup
    end
end

class FooControllerTest < Test::Unit::TestCase
    assert_valid_markup :bar, :baz, :qux
end

svn: http://redgreenblu.com/svn/projects/assert_valid_markup/

Install with:

svn export http://redgreenblu.com/svn/projects/assert_valid_markup

And here’s a patch to make it work if you’re stuck behind an HTTP proxy:

http://www.dontblink.com/norm/assert_valid_markup_with_proxy.diff

See also Plugins