LibTest/collection/SplayTreeMap/clear_A01_t01.test.dart

// 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.

// @dart = 2.9

/// @assertion void clear()
/// Removes all pairs from the map. After this, the map is empty.
/// @description Checks that all of the mappings from this map are removed.
/// @author msyabro

library clear_A01_t01;

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

test(Map create([Map content])) {
  Map map = create();

  map.clear(); //Check that empty map can be cleared
  Expect.isTrue(map.length == 0);
  Expect.isTrue(map.isEmpty);
  
  map["1"] = 1;
  map["2"] = 2;
  Expect.isTrue(map.length == 2);
  
  map.clear();
  Expect.isTrue(map.length == 0);
  Expect.isTrue(map["1"] == null && map["2"] == null);
  Expect.isTrue(map.isEmpty);
}