gmcnaughton/capybara_node_matchers.rb

## capybara_node_matchers.rb
# spec/support/capybara_node_matchers.rb

# Monkey-patches Capybara to add ```match_css?```, and ```match_selector?``` matchers.
module Capybara::Node::Matchers
  # Returns whether this node matches the given selector.
  def match_selector?(*args)
    result = parent_element.all(*args)
    # NOTE: In 1.1.2, ```page.find("#foo") != page.find("#foo")``` (seriously??)
    # Instead, check whether the node's native representations match.
    # See https://github.com/jnicklas/capybara/issues/542
    result.any? { |other| self.eql?(other) or (other.respond_to?(:native) and native == other.native) }
  end

  # Returns whether this node matches the css selector.  The built-in
  # ```has_css?``` only applies to *descendants* of the current node,
  # not the current node itself (by design).
  # See http://stackoverflow.com/questions/8282399/capybara-field-has-css-matcher
  def match_css?(path, options={})
    match_selector?(:css, path, options)
  end

  private

  # Capybara::Node.parent returns the parent document, not the parent element.
  # jnicklas has rejected syntactic sugar patches for this, saying that it's
  # simple enough to use selectors to find the parent node.
  # See http://stackoverflow.com/questions/4861863/how-to-get-parent-node-in-capybara
  #
  # WARNING: calling parent_element on the root <html> element causes Capybara
  #          to freeze and never come back!
  def parent_element
    find(:xpath, "..")
  end
end
	# spec/support/capybara_node_matchers.rb

	# Monkey-patches Capybara to add ```match_css?```, and ```match_selector?``` matchers.
	module Capybara::Node::Matchers
	# Returns whether this node matches the given selector.
	def match_selector?(*args)
	result = parent_element.all(*args)
	# NOTE: In 1.1.2, ```page.find("#foo") != page.find("#foo")``` (seriously??)
	# Instead, check whether the node's native representations match.
	# See https://github.com/jnicklas/capybara/issues/542
	result.any? { \|other\| self.eql?(other) or (other.respond_to?(:native) and native == other.native) }
	end

	# Returns whether this node matches the css selector. The built-in
	# ```has_css?``` only applies to descendants of the current node,
	# not the current node itself (by design).
	# See http://stackoverflow.com/questions/8282399/capybara-field-has-css-matcher
	def match_css?(path, options={})
	match_selector?(:css, path, options)
	end

	private

	# Capybara::Node.parent returns the parent document, not the parent element.
	# jnicklas has rejected syntactic sugar patches for this, saying that it's
	# simple enough to use selectors to find the parent node.
	# See http://stackoverflow.com/questions/4861863/how-to-get-parent-node-in-capybara
	#
	# WARNING: calling parent_element on the root <html> element causes Capybara
	# to freeze and never come back!
	def parent_element
	find(:xpath, "..")
	end
	end