capybara_query_node_contents.rb

class HaveXpathContaining < Struct.new( :xpath, :contents )
  
  def matches?( page )
    if self.contents.blank?
      page.has_xpath?( self.xpath + "[not( text() )]" ) || page.has_xpath?( self.xpath + "[string-length( normalize-space( . ) ) = 0]" )
    else
      page.has_xpath?( self.xpath + "[contains( ., '#{ self.contents }' )]" )
    end
  end
  
  def failure_message
    "Page should have matched XPath #{ self.xpath.inspect } with contents #{ self.contents.inspect }, but didn't"
  end
  
end

def have_xpath_containing( xpath, contents )
  HaveXpathContaining.new( xpath, contents )
end

########################################################

# Use like:

page.should have_xpath_containing( "//@a[@id = "remove"]", "Remove Item" )