public void GetValueAt()
{
// Empty path
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(0, SnakeSpace.FromHead);
});
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(0, SnakeSpace.FromTail);
});
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(0, SnakeSpace.FromStart);
});
path.PushToEnd(new int[] { 1, 2, 3 });
path.PopFromStart();
// SnakeSpace.FromHead
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(-1, SnakeSpace.FromHead);
});
Assert.AreEqual(3, path.GetValueAt(0, SnakeSpace.FromHead));
Assert.AreEqual(2, path.GetValueAt(1, SnakeSpace.FromHead));
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(2, SnakeSpace.FromHead);
});
// SnakeSpace.FromTail
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(-1, SnakeSpace.FromTail);
});
Assert.AreEqual(2, path.GetValueAt(0, SnakeSpace.FromTail));
Assert.AreEqual(3, path.GetValueAt(1, SnakeSpace.FromTail));
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(2, SnakeSpace.FromTail);
});
// SnakeSpace.FromStart
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(0, SnakeSpace.FromStart);
});
Assert.AreEqual(2, path.GetValueAt(1, SnakeSpace.FromStart));
Assert.AreEqual(3, path.GetValueAt(2, SnakeSpace.FromStart));
Assert.Throws(typeof(IndexOutOfRangeException), () => {
path.GetValueAt(3, SnakeSpace.FromStart);
});
}
