public void Knot_Move_Test()
{
Edge[] edges = new Edge[] {
Edge.Up, Edge.Left, Edge.Down, Edge.Right
};
string name = "test";
KnotMetaData metaData = new KnotMetaData (name: name, countEdges: () => edges.Length);
Knot knot = new Knot (metaData, edges);
knot.AddToSelection (edges [1]); // Edge.Left
Log.Debug ("Selected: ", knot.SelectedEdges);
bool success;
success = knot.IsValidDirection (direction: Direction.Left);
Assert.IsFalse (success);
success = knot.IsValidDirection (direction: Direction.Right);
Assert.IsFalse (success);
success = knot.IsValidDirection (direction: Direction.Up);
Assert.IsTrue (success);
success = knot.IsValidDirection (direction: Direction.Down);
Assert.IsTrue (success);
success = knot.IsValidDirection (direction: Direction.Forward);
Assert.IsTrue (success);
success = knot.IsValidDirection (direction: Direction.Backward);
Assert.IsTrue (success);
success = knot.Move (direction: Direction.Down, distance: 1);
Assert.IsFalse (success, "Nicht möglich! Knoten würde zu zwei Kanten zusammenfallen!");
success = knot.Move (direction: Direction.Left, distance: 1);
Assert.IsFalse (success, "Ungültige Richtung!");
success = knot.Move (direction: Direction.Right, distance: 1);
Assert.IsFalse (success, "Ungültige Richtung!");
// nach oben schieben (1x)
success = knot.Move (direction: Direction.Up, distance: 1);
Assert.IsTrue (success, "Gültige Richtung!");
Assert.AreEqual (knot.Count (), edges.Length + 2, "Knotenlänge nach Verschiebung #1");
// noch mal nach oben schieben (2x)
success = knot.Move (direction: Direction.Up, distance: 2);
Assert.AreEqual (knot.Count (), edges.Length + 2 * 3, "Knotenlänge nach Verschiebung #2");
// wieder nach unten schieben (3x)
success = knot.Move (direction: Direction.Down, distance: 3);
Assert.IsTrue (success, "Gültige Richtung!");
Assert.AreEqual (knot.Count (), edges.Length, "Knotenlänge nach Verschiebung #3");
success = knot.Move (direction: Direction.Zero, distance: 3);
Assert.AreEqual (knot.Count (), edges.Length, "Null-Move");
success = knot.Move (direction: Direction.Left, distance: 0);
Assert.AreEqual (knot.Count (), edges.Length, "Null-Move");
success = knot.Move (direction: Direction.Zero, distance: 0);
Assert.AreEqual (knot.Count (), edges.Length, "Null-Move");
}