# require 'spec_helper'
# require 'wukong'

# load Pathname.path_to(:examples, 'graph/minimum_spanning_tree.rb')

# describe 'Minimum Spanning Tree', :examples_spec, :helpers do

#   context Wukong::Widget::DisjointForest do
#     subject{ Wukong::Widget::DisjointForest.new }

#     context 'operations' do
#       before do
#         %w[ AUS DFW ATL JFK SFO LGA LAX ].each{|el| subject.add el }
#         subject.union('DFW', 'AUS')
#         subject.union('ATL', 'JFK')
#         subject.union('ATL', 'DFW')
#       end

#       context '#find' do
#         it 'collapses elements into a shallow tree during a find' do
#           subject.parent['ATL'].should == 'JFK'
#           subject.parent['JFK'].should == 'AUS'
#           subject.find('ATL').should == 'AUS'
#           subject.parent['ATL'].should == 'AUS'
#         end
#       end
#       context '#union' do
#         it 'joins shallow tree to deep tree' do
#         end
#       end
#     end

#   end
# end