require 'spec_helper'

describe Immutable::Deque do
  describe '#to_list' do
    [
      [],
      ['A'],
      %w[A B C],
    ].each do |values|
      context "on #{values.inspect}" do
        it "returns a list containing #{values.inspect}" do
          D[*values].to_list.should eql(L[*values])
        end
      end
    end

    context "after dedequeing an item from #{%w[A B C].inspect}" do
      it "returns a list containing #{%w[B C].inspect}" do
        list = D['A', 'B', 'C'].dequeue.to_list
        list.should eql(L['B', 'C'])
      end
    end
  end
end