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gistfile1.txt

# Create a Red Sox class that represents the starting line-up of the Red Sox in a recent game.  The line-up at the start of the game, 1 through 9, is given below with the pitcher indicated at 0 as he doesn't bat (sorry, NL fans):
# 
# * 1, Aviles, SS
# * 2, Pedroia, 2B
# * 3, Youkilis, 1B
# * 4, Ortiz, DH
# * 5, Middlebrooks, 3B
# * 6, Gonzalez, OF
# * 7, Saltalamacchia, C
# * 8, McDonald, OF
# * 9, Byrd, OF
# * 0, Lester, P
# 
# Print the lineup in order, starting with 0 and ending at 9.
# 
# It should accept a new player into the lineup as long as they play the same position.  Here's a few guys you might want to sub in during the game Crawford (OF), Bard (P), Shoppach (C), Aceves, (P), Punto (2B), Podsednik (OF).

require 'rspec'

class BaseballTeam

  def initialize
    @lineup = { 1 => { 'Aviles' => 'SS' },        2 => { 'Pedroia' => '2B' },       3 => { 'Youkilis' => '3B' }, 
                4 => { 'Ortiz' => 'DH' },         5 => { 'Middlebrooks' => '3B' },  6 => { 'Gonzalez' => 'OF' }, 
                7 => { 'Saltalamacchia' => 'C' }, 8 => { 'McDonald' => 'OF' },     9 => { 'Byrd' => 'OF' }, 
                0 => { 'Lester' => 'P' } }
  end
  
  def get_lineup_hash
    @lineup
  end
  
  def lineup_order
    ordered_lineup = []
    (0..9).each do |i|
        ordered_lineup << @lineup[i].keys*","
    end
    ordered_lineup
  end
  
  def substitution(replace_number, replacement_hash)
    @lineup[replace_number] = replacement_hash
    lineup_order
  end

end

#################################################################

describe BaseballTeam do

  before do
    @red_sox = BaseballTeam.new
  end
  
  it "should verify you have your lineup hash table" do
    @red_sox.get_lineup_hash.should eq(
                { 1 => { 'Aviles' => 'SS' },        2 => { 'Pedroia' => '2B' },       3 => { 'Youkilis' => '3B' }, 
                  4 => { 'Ortiz' => 'DH' },         5 => { 'Middlebrooks' => '3B' },  6 => { 'Gonzalez' => 'OF' }, 
                  7 => { 'Saltalamacchia' => 'C' }, 8 => { 'McDonald' => 'OF' },      9 => { 'Byrd' => 'OF' }, 
                  0 => { 'Lester' => 'P' } })
  end
  
  it "should print the lineup names in order" do
    @red_sox.lineup_order.should eq(%w(Lester Aviles Pedroia Youkilis Ortiz 
                                      Middlebrooks Gonzalez Saltalamacchia McDonald 
                                      Byrd))
  end
  
  it "should replace a P for a P" do
    @red_sox.substitution(0, { 'Aceves' => 'P' }).should eq(%w(Aceves Aviles Pedroia Youkilis Ortiz 
                                      Middlebrooks Gonzalez Saltalamacchia McDonald 
                                      Byrd))
  end
  
  it "should replace an OF with an OF" do
    @red_sox.substitution(8, { 'Podsednik' => 'OF' }).should eq(%w(Lester Aviles Pedroia Youkilis Ortiz 
                                      Middlebrooks Gonzalez Saltalamacchia Podsednik 
                                      Byrd))
  end
  
  it "should fail if the positions don't match" do
    @red_sox.substitution(0, { 'Podsednik' => 'OF' }).should eq(%w(Lester Aviles Pedroia Youkilis Ortiz 
                                      Middlebrooks Gonzalez Saltalamacchia McDonald 
                                      Byrd))
  end
end