public void FindPositionTest()
{
var actual = InsertionSorter.FindPosition(new[] { 1, 4, 6 }, 3, 2);
Assert.AreEqual(1, actual);
actual = InsertionSorter.FindPosition(new[] { 1, 4, 6, 5 }, 3, 7);
Assert.AreEqual(3, actual);
}