LibTest/collection/HashMap/HashMap.fromIteratables_A01_t01.dart

// 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 HashMap.fromIterables(Iterable<K> keys, Iterable<V> values)
/// Creates a HashMap associating the given [keys] to [values].
/// This constructor iterates over [keys] and [values] and maps each element of
/// [keys] to the corresponding element of [values].
/// @description Checks that created hash map contains all elements of the
/// iteratables
/// @author sgrekhov@unipro.ru

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

main() {
  DoubleLinkedQueue keys = new DoubleLinkedQueue();
  keys.add(1);
  keys.add(2);
  keys.add(3);
  keys.add(4);
  DoubleLinkedQueue values = new DoubleLinkedQueue();
  values.add('val1');
  values.add('val2');
  values.add('val3');
  values.add('val4');

  HashMap map = new HashMap.fromIterables(keys, values);
  Expect.equals(keys.length, map.length);
  keys.forEach((key) {
    Expect.equals('val' + key.toString(), map[key]);
  });
}