public void Should_Result_In_A_Empty_Grid_With_Diehard_Seed_At_130th_Tick()
{
var grid = @"------X-XX-------X---XXX";
var generation = new Generation(grid, 3, 8);
// Run 129 ticks.
for (int i = 0; i < 129; i++)
generation = generation.Tick();
Assert.NotEqual(0, generation.TotalAlive);
// Run the 130th tick.
generation = generation.Tick();
Assert.Equal(0, generation.TotalAlive);
}
public void Should_Give_Proper_Output_For_Specific_Input(string inputGrid, string outputGrid)
{
inputGrid = inputGrid.Trim();
outputGrid = outputGrid.Trim();
var generation = new Generation(inputGrid.Replace(Environment.NewLine, ""), inputGrid.Split(new[] { Environment.NewLine }, StringSplitOptions.None).Count(), inputGrid.IndexOf(Environment.NewLine));
var next = generation.Tick();
Assert.Equal(outputGrid, next.ToString());
}
public void Tick_Should_Kill_Of_A_Lone_Cell()
{
var generation = new Generation(new Coordinate(1, 1));
var next = generation.Tick();
Assert.Equal(0, next.TotalAlive);
}
public void Tick_Should_Kill_Of_A_Cell_With_More_Than_3_Neighbours()
{
var generation = new Generation(new Coordinate(1, 1), new Coordinate(0, 0), new Coordinate(2, 2), new Coordinate(0, 2), new Coordinate(2, 0));
var next = generation.Tick();
Assert.Equal(4, next.TotalAlive);
Assert.False(next.IsAlive(1, 1));
}
public void Tick_Should_Kill_Of_A_Cell_With_Less_Than_2_Neighbours()
{
var generation = new Generation(new Coordinate(1, 1), new Coordinate(2, 2));
var next = generation.Tick();
Assert.Equal(0, next.TotalAlive);
}
public void Tick_Should_Create_A_Cell_With_Exactly_3_Neighbours_If_Already_Dead()
{
var generation = new Generation(new Coordinate(0, 1), new Coordinate(1, 1), new Coordinate(2, 1));
var next = generation.Tick();
Assert.Equal(3, next.TotalAlive);
new List<Coordinate> { new Coordinate(1, 0), new Coordinate(1, 1), new Coordinate(1, 2) }.ForEach(c => Assert.True(next.IsAlive(c.X, c.Y)));
}