LibTest/core/Map/containsValue_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.

/**
 * @assertion  abstract bool containsValue(Object value)
 * Returns true if this map contains the given value.
 * @description Checks that the method returns true if this map contains a
 * mapping for the specified key.
 * @author msyabro
 */
library containsValue_A01_t01;

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

test(Map create([Map content])) {
  Map stringObjectMap = create();
  Expect.isTrue(!stringObjectMap.containsValue(null));
  
  stringObjectMap["1"] = 1;
  Expect.isTrue(stringObjectMap.containsValue(1));
  
  stringObjectMap["2"] = null;
  Expect.isTrue(stringObjectMap.containsValue(null));
  
  stringObjectMap["3"] = 1;
  Expect.isTrue(stringObjectMap.containsValue(1));
  
  stringObjectMap["4"] = stringObjectMap;
  Expect.isTrue(stringObjectMap.containsValue(stringObjectMap));
  
  stringObjectMap["4"] = 4;
  Expect.isTrue(!stringObjectMap.containsValue(stringObjectMap));    
}