public void Unlink()
{
VFXSlot input = VFXSlot.Create(new VFXProperty(typeof(float), "test"), VFXSlot.Direction.kInput);
VFXSlot output = VFXSlot.Create(new VFXProperty(typeof(float), "test"), VFXSlot.Direction.kOutput);
input.Link(output);
input.Unlink(output);
Assert.AreEqual(0, input.GetNbLinks());
Assert.AreEqual(0, output.GetNbLinks());
Assert.AreEqual(input, input.refSlot);
Assert.AreEqual(output, output.refSlot);
}