public void Prepend()
{
var source = new[] {2, 3, 4};
var expected = new[] {1, 2, 3, 4};
CollectionAssert.AreEqual(
expected, source.Prepend(1).ToArray());
}
public void PrependTest()
{
var ints = new[] { 1, 2, 3 };
var zeroToThree = ints.Prepend(0);
CollectionAssert.AreEqual(new[] { 0, 1, 2, 3 }, zeroToThree.ToArray());
}