class Team
  attr_reader :players
  def initialize
    @players = Players.new
  end
end

class Players
  def initialize
    @players = []
  end
  def size
    @players.size
  end
  def include? player
    raise "player must be a string" unless player.is_a?(String)
    @players.include? player
  end
end

describe "A new team" do
  
  before(:each) do
    @team = Team.new
  end
  
  it "should have 3 players (failing example)" do
    @team.should have(3).players
  end
  
  it "should include some player (failing example)" do
    @team.players.should include("Some Player")
  end

  it "should include 5 (failing example)" do
    @team.players.should include(5)
  end
  
  it "should have no players"
  
end