public virtual void TestToString()
{
char[] b = new char[] { 'a', 'l', 'o', 'h', 'a' };
CharTermAttribute t = new CharTermAttribute();
t.CopyBuffer(b, 0, 5);
Assert.AreEqual("aloha", t.ToString());
t.SetEmpty().Append("hi there");
Assert.AreEqual("hi there", t.ToString());
}