#nameservers
  should: %s (array)
  should: %s have(3).items
  should: %s[0] (nameserver)
  should: %s[0] == _nameserver.new(:name => "ns.masterhost.ru", :ipv4 => "217.16.20.30")
  should: %s[1] (nameserver)
  should: %s[1] == _nameserver.new(:name => "ns1.masterhost.ru", :ipv4 => "217.16.16.30")
  should: %s[2] (nameserver)
  should: %s[2] == _nameserver.new(:name => "ns2.masterhost.ru", :ipv4 => "217.16.22.30")