LibTest/core/Map/operator_subscript_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 V operator [](Object key)
/// Returns the value for the given [key] or null if [key] is not in the map.
/// @description Checks that the method returns the value to which the specified
/// key is mapped, or null if this map contains no mapping for the key.
/// @author msyabro

library operator_subscript_A01_t01;
 
import "../../../Utils/expect.dart";
 
test(Map create([Map content])) {
  Map intMap = create();
  
  Expect.isTrue(intMap[1] == null);
  intMap[1] = 1;
  Expect.isTrue(intMap[1] == 1);
  
  Expect.isTrue(intMap[2] == null);
  intMap[2] = 2;
  Expect.isTrue(intMap[2] == 2);
  
  intMap.remove(1);
  Expect.isTrue(intMap[1] == null);
  
  Map<String, Object> stringMap = new Map<String, Object>();
  String s = "string";
  stringMap[s] = "string";
  Expect.isTrue(stringMap["string"] == "string");
}