public void CoordinatesAreValid()
{
var warehouse = new Warehouse(5, 5);
Assert.That(warehouse.IsValidCoordinate(0, 0), Is.True);
}
public void CoordinatesAreInvalidWhenYIsOutsideWarehouse()
{
var warehouse = new Warehouse(5, 5);
Assert.That(warehouse.IsValidCoordinate(0, 6), Is.False);
}