private static (UnitSpecification specification, UnitStack stack) SetUp(uint count)
{
var unitSpecification = new SlaveSpecification();
var stackSpecification = new UnitStackSpecification(unitSpecification, count);
var stack = new UnitStack(stackSpecification);
var resources = count * unitSpecification.HireCost;
stack.Consume(resources);
return(unitSpecification, stack);
}