LibTest/collection/ListQueue/ListQueue.from_A03_t01.dart

// Copyright (c) 2017, 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 factory ListQueue.from(Iterable elements)
/// All elements should be assignable to [E].
/// @description Checks that elements can be only of [E] type.
/// @author iarkh@unipro.ru

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

main() {
  Expect.throws(() {
      ListQueue list = new ListQueue<int>.from([1, 2, 3, "4", 5]);
    }, (e) => e is TypeError
  );

  Expect.throws(() {
      ListQueue list = new ListQueue<int>.from([1, 2, 1.14, 4, 5]);
    }, (e) => e is TypeError
  );

  Expect.throws(() {
    ListQueue list = new ListQueue<int>.from([1, 2, new Object(), 4, 5]);
  }, (e) => e is TypeError
  );
}