mancala.cs

using System;
using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;

namespace describe_MacalaKata
{
    public class Mancala : List<int>
    {
        public void Sow(int well)
        {
            if (well == 6 || well == 13) return;
            var opponentGoal = well < 7 ? 13 : 6;
            var seeds = this[well];
            this[well] = 0;
            while (seeds > 0)
            {
                var idx = ++well;
                if (idx == opponentGoal) continue;
                if (this.Count-1 < idx) idx = well = 0;
                this[idx]++;
                seeds--;
            }
        }

        public override string ToString()
        {
            var player1s = string.Join("\t", this.Take(6));
            var player2s = string.Join("\t", this.Skip(7).Take(6).Reverse());
            return this[13].ToString() + "\t" + player2s + Environment.NewLine + "\t" + player1s + "\t" + this[6];
        }
    }

    [TestFixture]
    public class run
    {
        Mancala game;
        private Random rand;

        [SetUp]
        public void setup()
        {
            game = new Mancala { 4, 4, 4, 4, 4, 4, 0, 
                                 4, 4, 4, 4, 4, 4, 0 };
            rand = new Random();
        }
     
        [Test]
        public void try_a_game()
        {
            for (int i = 0; i < 10; i++)
            {
                game.Sow(Player1Move());
                Console.WriteLine(game);

                game.Sow(Player2Move());
                Console.WriteLine(game);
            }
        }

        [Test]
        public void run_entire_game()
        {
            while (!(game.Take(6).All(well => well == 0) || game.Skip(7).Take(6).All(well => well == 0)))
            {
                game.Sow(Player1Move());
                Console.WriteLine(game);

                game.Sow(Player2Move());
                Console.WriteLine(game);
            }

            var player1Score = game.Take(7).Sum();
            var player2Score = game.Skip(7).Take(7).Sum();
            Console.WriteLine("Player 1: {0}", player1Score);
            Console.WriteLine("Player 2: {0}", player2Score);
        }

        [Test]
        public void player_one_valid_plays()
        {
            Enumerable.Range(0, 30).ToList().ForEach(i => Console.WriteLine(Player1Move()));
        }

        [Test]
        public void player_two_valid_plays()
        {
            Enumerable.Range(0, 30).ToList().ForEach(i => Console.WriteLine(Player2Move()));
        }

        [Test]
        public void print_game_status()
        {
            Console.WriteLine(game);   
        }

        private int Player1Move()
        {
            var move = rand.Next(6);
            Console.WriteLine("Player 1 move {0}", move + 1);
            return move;
        }

        private int Player2Move()
        {
            var move = rand.Next(7, 13);
            Console.WriteLine("Player 2 move {0}", move - 6);
            return move;
        }
    }

    [TestFixture]
    public class describe_valid_plays
    {
        Mancala game;

        [SetUp]
        public void setup()
        {
            game = new Mancala { 0, 0, 0, 0, 0, 0, 1, 
                                 0, 0, 0, 0, 0, 0, 1 };
        }
        
        [Test]
        public void player_1s_goal_cannot_be_sowed()
        {
            game.Sow(6);
            Assert.That(game[7], Is.EqualTo(0));
        }

        [Test]
        public void player_2s_goal_cannot_be_sowed()
        {
            game.Sow(13);
            Assert.That(game[0], Is.EqualTo(0));
        }

        [Test]
        public void sowing_empty_wells_does_nothing()
        {
            game.Sow(0);
            Assert.That(game[1], Is.EqualTo(0));
        }
    }

    [TestFixture]
    public class describe_skipping_player_1s_goal
    {
        Mancala game;

        [SetUp]
        public void setup()
        {
            game = new Mancala { 0, 0, 0, 0, 0, 0, 0, 
                                 0, 0, 0, 0, 0, 8, 0 };
            game.Sow(12);
        }
   
        [Test]
        public void opponents_goal_is_skipped()
        {
            Assert.That(game[6], Is.EqualTo(0));
        }

        [Test]
        public void seeding_continues_with_player_2s_first_goal()
        {
            Assert.That(game[7], Is.EqualTo(1));
        }
    }

    [TestFixture]
    public class describe_skipping_player_2s_goal
    {
        Mancala game;

        [SetUp]
        public void setup()
        {
            game = new Mancala { 0, 0, 0, 0, 0, 8, 0, 
                                 0, 0, 0, 0, 0, 0, 0 };
            game.Sow(5);
        }
   
        [Test]
        public void opponents_goal_is_skipped()
        {
            Assert.That(game[13], Is.EqualTo(0));
        }

        [Test]
        public void seeding_continues_with_player_1s_first_goal()
        {
            Assert.That(game[0], Is.EqualTo(1));
        }
    }

    [TestFixture]
    public class describe_simple_seeding
    {
        Mancala game;

        [SetUp]
        public void setup()
        {
            game = new Mancala { 0, 3, 1, 0 };
            game.Sow(1);
        }

        [Test]
        public void empties_the_sowed_well()
        {
            Assert.That(game[1], Is.EqualTo(0));
        }

        [Test]
        public void adds_1_to_the_next_well()
        {
            Assert.That(game[2], Is.EqualTo(2));
        }

        [Test]
        public void seeds_the_next_next_well()
        {
            Assert.That(game[3], Is.EqualTo(1));
        }

        [Test]
        public void seeding_wraps_around()
        {
            Assert.That(game[0], Is.EqualTo(1));
        }
    }
}



------ Test started: Assembly: MacalaKata.dll ------

Player 1 move 2
0	4	4	4	4	4	4
	4	0	5	5	5	5	0
Player 2 move 1
0	4	5	5	5	5	0
	4	0	5	5	5	5	0
Player 1 move 3
0	4	5	5	5	5	1
	4	0	0	6	6	6	1
Player 2 move 3
1	5	6	6	0	5	1
	5	0	0	6	6	6	1
Player 1 move 2
1	5	6	6	0	5	1
	5	0	0	6	6	6	1
Player 2 move 1
1	5	6	6	0	6	0
	5	0	0	6	6	6	1
Player 1 move 2
1	5	6	6	0	6	0
	5	0	0	6	6	6	1
Player 2 move 3
1	5	6	6	0	6	0
	5	0	0	6	6	6	1
Player 1 move 1
1	5	6	6	0	6	0
	0	1	1	7	7	7	1
Player 2 move 2
2	6	7	7	1	0	0
	1	1	1	7	7	7	1
Player 1 move 3
2	6	7	7	1	0	0
	1	1	0	8	7	7	1
Player 2 move 3
2	6	7	8	0	0	0
	1	1	0	8	7	7	1
Player 1 move 2
2	6	7	8	0	0	0
	1	0	1	8	7	7	1
Player 2 move 5
3	7	0	8	0	0	0
	2	1	2	9	8	7	1
Player 1 move 1
3	7	0	8	0	0	0
	0	2	3	9	8	7	1
Player 2 move 1
3	7	0	8	0	0	0
	0	2	3	9	8	7	1
Player 1 move 4
3	8	1	9	1	1	1
	0	2	3	0	9	8	2
Player 2 move 2
3	8	1	9	2	0	1
	0	2	3	0	9	8	2
Player 1 move 1
3	8	1	9	2	0	1
	0	2	3	0	9	8	2
Player 2 move 6
4	0	1	9	2	0	2
	1	3	4	1	10	9	2
Player 1 move 6
4	1	2	10	3	1	3
	2	4	4	1	10	0	3
Player 2 move 2
4	1	2	10	4	0	3
	2	4	4	1	10	0	3
Player 1 move 5
4	2	3	11	5	1	4
	3	5	4	1	0	1	4
Player 2 move 5
5	3	0	11	5	1	4
	4	5	4	1	0	1	4
Player 1 move 5
5	3	0	11	5	1	4
	4	5	4	1	0	1	4
Player 2 move 2
5	3	0	11	6	0	4
	4	5	4	1	0	1	4
Player 1 move 3
5	3	0	11	6	0	4
	4	5	0	2	1	2	5
Player 2 move 3
6	4	1	12	0	0	4
	5	6	0	2	1	2	5
Player 1 move 2
6	4	1	12	0	0	5
	5	0	1	3	2	3	6
Player 2 move 4
7	5	2	0	1	1	6
	6	1	2	4	3	4	6
Player 1 move 4
7	5	2	0	1	1	7
	6	1	2	0	4	5	7
Player 2 move 6
8	0	2	0	1	1	7
	7	2	3	1	4	5	7
Player 1 move 5
8	0	2	0	1	2	8
	7	2	3	1	0	6	8
Player 2 move 1
9	1	3	1	2	3	0
	8	3	3	1	0	6	8
Player 1 move 1
9	1	3	1	2	4	1
	0	4	4	2	1	7	9
Player 2 move 5
10	2	0	1	2	4	1
	1	4	4	2	1	7	9
Player 1 move 1
10	2	0	1	2	4	1
	0	5	4	2	1	7	9
Player 2 move 2
10	3	1	2	3	0	1
	0	5	4	2	1	7	9
Player 1 move 1
10	3	1	2	3	0	1
	0	5	4	2	1	7	9
Player 2 move 3
10	4	2	3	0	0	1
	0	5	4	2	1	7	9
Player 1 move 3
10	4	2	3	0	0	1
	0	5	0	3	2	8	10
Player 2 move 5
11	5	0	3	0	0	1
	0	5	0	3	2	8	10
Player 1 move 4
11	5	0	3	0	0	1
	0	5	0	0	3	9	11
Player 2 move 6
12	0	0	3	0	0	1
	1	6	1	1	3	9	11
Player 1 move 1
12	0	0	3	0	0	1
	0	7	1	1	3	9	11
Player 2 move 5
12	0	0	3	0	0	1
	0	7	1	1	3	9	11
Player 1 move 3
12	0	0	3	0	0	1
	0	7	0	2	3	9	11
Player 2 move 1
12	0	0	3	0	1	0
	0	7	0	2	3	9	11
Player 1 move 5
12	0	0	3	0	1	1
	0	7	0	2	0	10	12
Player 2 move 6
12	0	0	3	0	1	1
	0	7	0	2	0	10	12
Player 1 move 5
12	0	0	3	0	1	1
	0	7	0	2	0	10	12
Player 2 move 1
12	0	0	3	0	2	0
	0	7	0	2	0	10	12
Player 1 move 1
12	0	0	3	0	2	0
	0	7	0	2	0	10	12
Player 2 move 4
13	1	1	0	0	2	0
	0	7	0	2	0	10	12
Player 1 move 4
13	1	1	0	0	2	0
	0	7	0	0	1	11	12
Player 2 move 6
14	0	1	0	0	2	0
	0	7	0	0	1	11	12
Player 1 move 3
14	0	1	0	0	2	0
	0	7	0	0	1	11	12
Player 2 move 5
14	1	0	0	0	2	0
	0	7	0	0	1	11	12
Player 1 move 5
14	1	0	0	0	2	0
	0	7	0	0	0	12	12
Player 2 move 6
15	0	0	0	0	2	0
	0	7	0	0	0	12	12
Player 1 move 5
15	0	0	0	0	2	0
	0	7	0	0	0	12	12
Player 2 move 5
15	0	0	0	0	2	0
	0	7	0	0	0	12	12
Player 1 move 2
15	0	0	0	0	3	1
	0	0	1	1	1	13	13
Player 2 move 4
15	0	0	0	0	3	1
	0	0	1	1	1	13	13
Player 1 move 4
15	0	0	0	0	3	1
	0	0	1	0	2	13	13
Player 2 move 3
15	0	0	0	0	3	1
	0	0	1	0	2	13	13
Player 1 move 4
15	0	0	0	0	3	1
	0	0	1	0	2	13	13
Player 2 move 1
15	0	0	0	0	4	0
	0	0	1	0	2	13	13
Player 1 move 5
15	0	0	0	0	4	0
	0	0	1	0	0	14	14
Player 2 move 3
15	0	0	0	0	4	0
	0	0	1	0	0	14	14
Player 1 move 6
15	1	1	1	1	5	1
	1	1	2	1	1	1	16
Player 2 move 3
15	1	1	2	0	5	1
	1	1	2	1	1	1	16
Player 1 move 2
15	1	1	2	0	5	1
	1	0	3	1	1	1	16
Player 2 move 5
15	2	0	2	0	5	1
	1	0	3	1	1	1	16
Player 1 move 3
15	2	0	2	0	5	1
	1	0	0	2	2	2	16
Player 2 move 1
15	2	0	2	0	6	0
	1	0	0	2	2	2	16
Player 1 move 4
15	2	0	2	0	6	0
	1	0	0	0	3	3	16
Player 2 move 5
15	2	0	2	0	6	0
	1	0	0	0	3	3	16
Player 1 move 4
15	2	0	2	0	6	0
	1	0	0	0	3	3	16
Player 2 move 1
15	2	0	2	0	6	0
	1	0	0	0	3	3	16
Player 1 move 6
15	2	0	2	0	7	1
	1	0	0	0	3	0	17
Player 2 move 2
16	3	1	3	1	0	1
	2	1	0	0	3	0	17
Player 1 move 5
16	3	1	3	1	0	2
	2	1	0	0	0	1	18
Player 2 move 2
16	3	1	3	1	0	2
	2	1	0	0	0	1	18
Player 1 move 5
16	3	1	3	1	0	2
	2	1	0	0	0	1	18
Player 2 move 4
17	4	2	0	1	0	2
	2	1	0	0	0	1	18
Player 1 move 6
17	4	2	0	1	0	2
	2	1	0	0	0	0	19
Player 2 move 2
17	4	2	0	1	0	2
	2	1	0	0	0	0	19
Player 1 move 3
17	4	2	0	1	0	2
	2	1	0	0	0	0	19
Player 2 move 1
17	4	2	0	2	1	0
	2	1	0	0	0	0	19
Player 1 move 2
17	4	2	0	2	1	0
	2	0	1	0	0	0	19
Player 2 move 3
17	4	3	1	0	1	0
	2	0	1	0	0	0	19
Player 1 move 3
17	4	3	1	0	1	0
	2	0	0	1	0	0	19
Player 2 move 1
17	4	3	1	0	1	0
	2	0	0	1	0	0	19
Player 1 move 4
17	4	3	1	0	1	0
	2	0	0	0	1	0	19
Player 2 move 5
18	5	0	1	0	1	0
	3	0	0	0	1	0	19
Player 1 move 4
18	5	0	1	0	1	0
	3	0	0	0	1	0	19
Player 2 move 1
18	5	0	1	0	1	0
	3	0	0	0	1	0	19
Player 1 move 2
18	5	0	1	0	1	0
	3	0	0	0	1	0	19
Player 2 move 4
18	5	1	0	0	1	0
	3	0	0	0	1	0	19
Player 1 move 1
18	5	1	0	0	1	0
	0	1	1	1	1	0	19
Player 2 move 2
18	5	1	0	1	0	0
	0	1	1	1	1	0	19
Player 1 move 3
18	5	1	0	1	0	0
	0	1	0	2	1	0	19
Player 2 move 2
18	5	1	0	1	0	0
	0	1	0	2	1	0	19
Player 1 move 6
18	5	1	0	1	0	0
	0	1	0	2	1	0	19
Player 2 move 3
18	5	1	1	0	0	0
	0	1	0	2	1	0	19
Player 1 move 6
18	5	1	1	0	0	0
	0	1	0	2	1	0	19
Player 2 move 2
18	5	1	1	0	0	0
	0	1	0	2	1	0	19
Player 1 move 1
18	5	1	1	0	0	0
	0	1	0	2	1	0	19
Player 2 move 3
18	5	1	1	0	0	0
	0	1	0	2	1	0	19
Player 1 move 3
18	5	1	1	0	0	0
	0	1	0	2	1	0	19
Player 2 move 4
18	5	2	0	0	0	0
	0	1	0	2	1	0	19
Player 1 move 1
18	5	2	0	0	0	0
	0	1	0	2	1	0	19
Player 2 move 5
19	6	0	0	0	0	0
	0	1	0	2	1	0	19
Player 1 move 1
19	6	0	0	0	0	0
	0	1	0	2	1	0	19
Player 2 move 3
19	6	0	0	0	0	0
	0	1	0	2	1	0	19
Player 1 move 1
19	6	0	0	0	0	0
	0	1	0	2	1	0	19
Player 2 move 6
20	0	0	0	0	0	0
	1	2	1	3	2	0	19
Player 1: 28
Player 2: 20

1 passed, 0 failed, 0 skipped, took 1.00 seconds (NUnit 2.6.0).