blob: 6bdfe06bc2a134d033c72f45390d21171ec6a5ce [file] [log] [blame]
// Copyright (c) 2016, 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 K firstKey()
/// Returns [null] if the map is empty.
/// @description Checks that [null] is returned if map is empty
/// @author
import "dart:collection";
import "../../../Utils/expect.dart";
main() {
SplayTreeMap map = new SplayTreeMap();