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Contents
module DataMapper
module Validations
module Fixtures
# for pedants: we refer to DIX Ethernet here
class EthernetFrame
#
# Behaviors
#
include DataMapper::Resource
#
# Properties
#
attr_accessor :link_support_fragmentation
# we have to have a key in a DM resource
property :id, Serial
without_auto_validations do
property :destination_mac, String
property :source_mac, String
property :ether_type, String
property :payload, Text
property :crc, String
end
#
# Validations
#
validates_length_of :destination_mac, :source_mac, :equals => 6
validates_length_of :ether_type, :equals => 2
validates_length_of :payload, :min => 46, :max => 1500, :unless => :link_support_fragmentation
# :is is alias for :equal
validates_length_of :crc, :is => 4
def self.valid_instance
# these are obvisouly not bits, and not in hexadecimal
# format either, but give fixture models some slack
attributes = {
:destination_mac => "7b7d93",
:source_mac => "abe763",
:ether_type => "88",
:payload => "Imagine yourself a beautiful bag full of bits here",
:crc => "4132"
}
new(attributes)
end
end # EthernetFrame
end
end
end
Version data entries
14 entries across 14 versions & 2 rubygems