battleship_orig.rb

# Battleship Coding Challenge
# Usage: rspec battleship.rb
#
# Example Board
#
#
#   0 1 2 3 4 5 6 7 8 9
# A
# B        N
# C        ^
# D     W<   >E
# E        v
# F        S
# G
# H
# I
# J

class Battleship
end

describe Battleship do
  let(:carrier) do
    { type: :carrier, position: 'A6', direction: :south, length: 5 }
  end

  let(:battleship) do
    { type: :battleship, position: 'D9', direction: :south, length: 4 }
  end

  let(:submarine) do
    { type: :submarine, position: 'I7', direction: :north, length: 3 }
  end

  let(:game) { Battleship.new([carrier, battleship, submarine]) }

  subject { game }

  context 'hits' do
    it 'the beginning edge of the Submarine' do
      turn = subject.fire!('I7') # Hits the Submarine

      expect(turn).to be true
    end

    it 'the middle of the Battleship' do
      turn = subject.fire!('G9') # Hits the Battleship

      expect(turn).to be true
    end

    it 'the ending edge of the Carrier' do
      turn = subject.fire!('E6') # Hits the Carrier

      expect(turn).to be true
    end


    it 'returns type of ship when sunk' do
      turn = subject.fire!('I7') # Hits the Submarine
      expect(turn).to be true
      turn = subject.fire!('H7') # Hits the Submarine
      expect(turn).to be true
      turn = subject.fire!('G7') # Hits the Submarine
      expect(turn).to be :submarine
    end
  end

  context 'misses' do
    it 'and hits the middle of the ocean' do
      turn = subject.fire!('E3')

      expect(turn).to be false
    end
  end
end