pimpin

require 'nokogiri'
RSpec::Matchers.define :have_xml do |xpath, text|
  match do |body|
    doc = Nokogiri::XML::Document.parse(body)
    nodes = doc.xpath(xpath)
    expect(nodes).to_not be_empty
    if text
      nodes.each do |node|
        cdata = node.children.find { |e| e.cdata? }
        value_to_check = node.text