Forked from RiverGlide/dynamic_role_switching_spec.rb
Created
March 19, 2011 02:22
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$:.unshift(File.dirname(__FILE__), ".") | |
require 'spec_helper' | |
module Butler | |
def self.included base | |
base.instance_eval { @place = [] } | |
end | |
def put_fork_on_the_left | |
@place.unshift "fork" | |
@place | |
end | |
def put_knife_on_the_right | |
@place.push "knife" | |
@place | |
end | |
end | |
module Cook | |
#Todo: Do something similar here | |
def boil_water | |
end | |
def turn_on_stove | |
end | |
def place_boil_in_bag_into_pot | |
end | |
end | |
module MakeDinner | |
def follow_instructions | |
turn_on_stove | |
boil_water | |
place_boil_in_bag_into_pot | |
end | |
end | |
module LayTable | |
def follow_instructions | |
put_fork_on_the_left | |
put_knife_on_the_right | |
end | |
end | |
class MyActor | |
#Todo: decide how we will make the actor know in which role they should perform the task | |
def initialize role | |
extend role | |
end | |
def perform task | |
recall_how_to_do task | |
follow_instructions | |
end | |
private | |
def recall_how_to_do something | |
extend something | |
end | |
end | |
describe "Something" do | |
it "Something" do | |
butler = MyActor.new Butler | |
butler.perform(LayTable).should == ["fork","knife"] | |
end | |
end |
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Add the Butler role's
@place
instance variable to the extended actor instance usinginstance_eval
.