shoulda matchers in plain test::unit, somebody told me you can't use them in test::unit. I said you could, it was just ugly

shoulda_matchers_in_test_unit

require 'test_helper'
require 'shoulda/matchers'

class BlogTest < ActiveSupport::TestCase
  fixtures :blogs

  test "validations" do
    assert validate_presence_of(:title).matches?(Blog.new)
  end

end