LibTest/core/List/replaceRange_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 void replaceRange(int start, int end, Iterable<E> iterable)
 * Removes the elements in the range start to end exclusive and replaces them with
 * the contents of the iterable.
 * @description Checks that the elements within the range are replaced with elements
 * of iterable, and elements out of the range are retained.
 * @author kaigorodov
 */
library replaceRange_A01_t01;

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

test(List create([int length])) {

  void check(List a0, int start, int end, Iterable iterable) {
    List a=create();
    a.addAll(a0);
    a.replaceRange(start, end, iterable);
    Expect.equals(a0.length+start-end+iterable.length, a.length);
    for (int k0=0; k0<start; k0++) {
      Expect.identical(a0[k0], a[k0]);
    }
    int k=start;
    for (var element in iterable) {
      Expect.identical(element, a[k]);
      k++;
    }
    for (int k0=end; k0<a0.length; k0++,k++) {
      Expect.identical(a0[k0], a[k], "a0[$k0]=${a0[k0]}, a[$k]=${a[k]}, a=$a");
    }
  }

  List a0=[1,3,3,4,5,6];
  check(a0, 0, 0, [7,8,9]);
  check(a0, 0, 1, [8,9]);
  check(a0, 2, 2, [7,8]);
  check(a0, 2, 4, [7,8,9]);
  check(a0, a0.length-1, a0.length, [7,8,9,10]);
  check(a0, a0.length-1, a0.length-1, [-1, 7,8,9]);
}