public void TestInsertFormatLikeAppend() {
var sb = new StringBuilder("<strong>emphasis</strong>");
sb.InsertFormat(26, " and other {0}.", "things");
Assert.AreEqual("<strong>emphasis</strong> and other things.", sb.ToString());
}
public void TestInsertFormat()
{
var sb = new StringBuilder("<strong>emphasis</strong>");
sb.InsertFormat(sb.LastIndexOf('<')," and other {0}.", "things");
Assert.AreEqual("<strong>emphasis and other things.</strong>", sb.ToString());
}