public void SetAndReturn()
{
var pos = new GridPos(5, 6);
var ret = pos.SetAndReturn(7, 8);
Assert.Multiple(() =>
{
Assert.AreEqual(7, pos.X);
Assert.AreEqual(8, pos.Y);
Assert.AreEqual(7, ret.X);
Assert.AreEqual(8, ret.Y);
Assert.That(ReferenceEquals(pos, ret));
});
}