public void OverwriteWith()
{
var dl = new DenseList <int> {
1, 2
};
dl.OverwriteWith(new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8 }, 2, 5);
Assert.AreEqual(
new int[] { 2, 3, 4, 5, 6 },
dl.ToArray()
);
}