public void Icosahedron()
{
Mesh m = PrimitiveShapes.Icosahedron();
Assert.AreEqual(12, m.Vertices.Count());
Assert.AreEqual(20, m.Faces.Count());
Assert.AreEqual(60, m.HalfEdges.Count());
foreach (var e in m.HalfEdges)
{
Assert.IsNotNull(e.Face);
Assert.IsNotNull(e.Next);
}
}