// 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.

/// @assertion String join([String separator = "" ])
/// Converts each element to a String and concatenates the strings.
/// Iterates through elements of this iterable, converts each one to a String by
/// calling Object.toString, and then concatenates the strings, with the
/// separator string interleaved between the elements.
/// @description Checks that the returned String contains all elements of this
/// list separated by separator.
/// @author ngl@unipro.ru


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

Int32x4 i32x4(n) => new Int32x4(n, n, n, n);

equal(o1, o2) => o1.x == o2.x && o1.y == o2.y && o1.z == o2.z && o1.w == o2.w;

check(List<Int32x4> list, String separator, String expected) {
  var l = new Int32x4List.fromList(list);
  var res = l.join(separator);
  Expect.equals(expected, res);
}

main() {
  check([], "", "");
  check([], ", ", "");
  if (!isJS) {
    check([i32x4(0), i32x4(1), i32x4(2), i32x4(3)], ", ",
        "[00000000, 00000000, 00000000, 00000000], "
            "[00000001, 00000001, 00000001, 00000001], "
            "[00000002, 00000002, 00000002, 00000002], "
            "[00000003, 00000003, 00000003, 00000003]");
  }
}