public void RemoveSpanTest()
{
var newText1 = text.RemoveSpan(1);
var newText2 = text.RemoveSpan(1, text.Length - 2);
Assert.AreEqual(newText1.Length, 1);
Assert.AreEqual(newText2.Length, 2);
Assert.AreEqual(newText1[0].Equals(text[0]), true);
Assert.AreEqual(newText2[0].Equals(text[0]), true);
Assert.AreEqual(newText2[1].Equals(text[text.Length - 1]), true);
Assert.AreEqual(newText1.AnySpanReferenceEquals(text), false);
Assert.AreEqual(newText2.AnySpanReferenceEquals(text), false);
}
