LSCC 2016-12-12

tictactoe.rb

class Game

        def initialize
                @fields =       "___" +
                                "___" +
                                "___" ;
        end

        def take(x, y, piece = "X")
                line = x * 3
                @fields[line + y] = "X"
        end

        def is_over?
                ! @fields.include? "_"
        end
end

class GameTest
        def a_game_is_not_over_when_just_started
                game = Game.new

                fail if game.is_over?
        end

        def a_game_is_over_when_all_fields_are_taken
                game = Game.new

                game.take(0, 0)
                game.take(0, 1)
                game.take(0, 2)

                game.take(1, 0)
                game.take(1, 1)
                game.take(1, 2)

                game.take(2, 0)
                game.take(2, 1)
                game.take(2, 2)

                fail if !game.is_over?
        end

        def a_player_should_be_able_to_take_a_field
                game = Game.new

                game.take(0, 1, "O")
        
                fail if game.field(0, 1) != "O"
        end
end

test = GameTest.new
test.a_game_is_over_when_all_fields_are_taken
test.a_game_is_not_over_when_just_started
test.a_player_should_be_able_to_take_a_field