LanguageFeatures/Set-literals/set_literals_A01_t01.dart

// Copyright (c) 2018, 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 If s is a set literal, then it has the form
/// const? ('<' type '>')? '{' ... '}' where ... is zero or more comma-separated
/// element expressions (potentially with a trailing comma which is otherwise
/// ignored).
///
/// @description Checks set literal syntax
/// @author sgrekhov@unipro.ru

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

main() {
  var v1  = const <int> {1, 2, 3,};
  Expect.equals(3, v1.length);
  Expect.iterableEquals(new Set.from([1, 2, 3]), v1);

  var v2  = <int> {1, 2, 3, 4,};
  Expect.equals(4, v2.length);
  Expect.iterableEquals(new Set.from([1, 2, 3, 4]), v2);

  var v3  = {1, 2, 3, 4, 5,};
  Expect.equals(5, v3.length);
  Expect.iterableEquals(new Set.from([1, 2, 3, 4, 5]), v3);

  var v4  = const <int> {1, 2, 3};
  Expect.equals(3, v1.length);
  Expect.iterableEquals(new Set.from([1, 2, 3]), v4);

  var v5  = <int> {1, 2, 3, 4};
  Expect.equals(4, v2.length);
  Expect.iterableEquals(new Set.from([1, 2, 3, 4]), v5);

  var v6  = {1, 2, 3, 4, 5};
  Expect.equals(5, v3.length);
  Expect.iterableEquals(new Set.from([1, 2, 3, 4, 5]), v6);
}