public void CollectsTwoSeparateStacks()
{
var baseGrid = MockGrid("Base");
var topGrid = MockGrid("Top");
var pistons = MockPistonsBetween(baseGrid, topGrid, 10)
.Concat(MockPistonsBetween(baseGrid, topGrid, 8))
.ToList();
var stacks = new PistonTopology().GetPistonStacks(pistons);
Assert.That(stacks, Has.Length.EqualTo(2));
Assert.That(stacks.Select(s => s.Total), Is.EquivalentTo(new [] { 10, 8 }));
}
public void CollectsSingleStack()
{
var baseGrid = MockGrid("Base");
var topGrid = MockGrid("Top");
var pistons = MockPistonsBetween(baseGrid, topGrid, 10).ToList();
var stacks = new PistonTopology().GetPistonStacks(pistons);
Assert.That(stacks, Has.Length.EqualTo(1));
var stack = stacks.Single();
Assert.That(stack.Total, Is.EqualTo(10));
Assert.That(stack.BaseGrid, Is.EqualTo(baseGrid));
Assert.That(stack.TopGrid, Is.EqualTo(topGrid));
}
public void CollectsThreeStacksSupportingSingleStack()
{
var baseGrid = MockGrid("Base");
var middleGrid = MockGrid("Middle");
var topGrid = MockGrid("Top");
var pistons = MockPistonsBetween(baseGrid, middleGrid, 10)
.Union(MockPistonsBetween(baseGrid, middleGrid, 10))
.Union(MockPistonsBetween(baseGrid, middleGrid, 10))
.Union(MockPistonsBetween(middleGrid, topGrid, 10))
.ToList();
var stacks = new PistonTopology().GetPistonStacks(pistons);
Assert.That(stacks, Has.Length.EqualTo(4));
Assert.That(stacks.Select(s => s.Total), Is.EquivalentTo(new[] { 10, 10, 10, 10 }));
Assert.That(stacks.Where(s => s.BaseGrid == baseGrid).ToArray(), Has.Length.EqualTo(3));
Assert.That(stacks.Where(s => s.BaseGrid == middleGrid).ToArray(), Has.Length.EqualTo(1));
}
