for (int i = 0; i < 2000; ++i) {
tb.append("abc", 0, 3);
}
String str = tb.contentsAsString();
assertEquals(6000, str.length());
assertEquals(6000, tb.contentsAsArray().length);
tb.resetWithShared(new char[] { 'a' }, 0, 1);
assertEquals(1, tb.toString().length());
}