// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/// @assertion Documentation comments are comments that begin with the tokens ///
/// or '/''*''*'.
/// @description Checks that contents of a documentation comment have no effect
/// on the actual code's execution.
/// @author hlodvig

import "../../../../Utils/expect.dart";

main() {
  var x = 1;
  /// Documentation comments [:throw 1; :]
  Expect.equals(1, x);
}
