public void TurningFaceClockwise_Moves1RowOfStickersOnAdjacentSides()
{
var cube = new Cube();
Assert_IsSolved(cube);
cube = cube.Apply(Turn.Parse("U"));
Assert.Equal(Side.Right, cube[MovablePosition.Get(Side.Front, Side.Up)]);
Assert.Equal(Side.Right, cube[MovablePosition.Get(Side.Front, Side.Up | Side.Left)]);
Assert.Equal(Side.Right, cube[MovablePosition.Get(Side.Front, Side.Up | Side.Right)]);
Assert.Equal(Side.Back, cube[MovablePosition.Get(Side.Right, Side.Up)]);
Assert.Equal(Side.Back, cube[MovablePosition.Get(Side.Right, Side.Up | Side.Front)]);
Assert.Equal(Side.Back, cube[MovablePosition.Get(Side.Right, Side.Up | Side.Back)]);
Assert.Equal(Side.Left, cube[MovablePosition.Get(Side.Back, Side.Up)]);
Assert.Equal(Side.Left, cube[MovablePosition.Get(Side.Back, Side.Up | Side.Right)]);
Assert.Equal(Side.Left, cube[MovablePosition.Get(Side.Back, Side.Up | Side.Left)]);
Assert.Equal(Side.Front, cube[MovablePosition.Get(Side.Left, Side.Up)]);
Assert.Equal(Side.Front, cube[MovablePosition.Get(Side.Left, Side.Up | Side.Back)]);
Assert.Equal(Side.Front, cube[MovablePosition.Get(Side.Left, Side.Up | Side.Front)]);
Assert.False(cube.IsSolved);
}
public void SideHas9Squares(Side side)
{
var squares = MovablePosition.GetMovablePositionsForSide(side);
Assert.Equal(8, squares.Length);
// Center
Assert.Equal(0, squares.Count(MovablePosition.IsCenter));
// Edges
MovablePosition[] edges = squares.Where(MovablePosition.IsEdge).ToArray();
Assert.Equal(4, edges.Length);
var adjacents = CubeGeometry.GetClockwiseAdjacentFaces(side);
foreach (var adjacent in adjacents)
{
Assert.Contains(MovablePosition.Get(side, adjacent), edges);
}
// Corners
MovablePosition[] corners = squares.Where(MovablePosition.IsCorner).ToArray();
Assert.Equal(4, corners.Length);
for (int i = 0; i < 4; ++i)
{
Assert.Contains(MovablePosition.Get(side, adjacents[i] | adjacents[(i + 1) % 4]), corners);
}
}