public void AnyLiveCellWithTwoLiveNeighborsLives()
{
var world = new World(4, 4);
world.BringToLife(1, 1);
world.BringToLife(2, 1);
world.BringToLife(1, 2);
world.Tick();
Assert.IsTrue(world.IsAlive(1, 1));
Assert.IsTrue(world.IsAlive(2, 1));
Assert.IsTrue(world.IsAlive(1, 2));
}
public void AnyDeadCellWithExactlyThreeLiveNeighborsBecomesALiveCell()
{
var world = new World(4, 4);
world.BringToLife(1, 1);
world.BringToLife(1, 2);
world.BringToLife(2, 3);
world.Tick();
Assert.IsTrue(world.IsAlive(2, 2));
Assert.IsFalse(world.IsAlive(1, 1));
Assert.IsTrue(world.IsAlive(1, 2));
Assert.IsFalse(world.IsAlive(2, 3));
}
public void AnyLiveCellWithMoreThanThreeLiveNeighborsDies()
{
var world = new World(4, 4);
world.BringToLife(2, 2);
world.BringToLife(1, 1);
world.BringToLife(1, 2);
world.BringToLife(2, 3);
world.BringToLife(3, 2);
world.Tick();
Assert.IsFalse(world.IsAlive(2, 2));
Assert.IsTrue(world.IsAlive(1, 1));
Assert.IsTrue(world.IsAlive(1, 2));
Assert.IsTrue(world.IsAlive(2, 3));
Assert.IsTrue(world.IsAlive(3, 2));
}
public void AnyLiveCellWithFewerThanTwoLiveNeighboursDies()
{
var world = new World(4, 4);
world.BringToLife(1, 1);
world.Tick();
for (var i = 1; i <= 4; i++)
for (var j = 1; j <= 4; j++)
Assert.IsFalse(world.IsAlive(i, j));
}