require 'spec_helper'

describe Enumerable do

  it 'should find duplicates' do
    [0, 1, 2, 3].dups.should == []
    [0, 3, 3, 2, 2].dups.should =~ [2, 3]
    %w{one two three two one one three four five}.dups.should =~ %w{one two three}
  end

end