LibTest/collection/LinkedList/map_A01_t01.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 Iterable map(f(E element))
 * Returns a lazy Iterable where each element e of this is replaced by the result of f(e).
 * @description Checks that the resulting Iterable contains all the results of f(e).
 * @author kaigorodov
 */
import "../../../Utils/expect.dart";
import "dart:collection";
import "LinkedList.lib.dart";

int f (MyLinkedListEntry<int> entry) {
  return entry.value+2;
}
  
void checkResult(List<int> a) {
  LinkedList<MyLinkedListEntry<int>> llist = toLinkedList(a);
  int count=0;
  Iterable<int> mapIter=llist.map(f);
  for (int el in mapIter) {
    Expect.equals(a[count]+2, el);
    count++;
  }
  Expect.equals(a.length, count);
}

main() {
  List<int> a=new List<int>();
  checkResult(a);
  a.add(22);
  checkResult(a);
  a.add(11);
  checkResult(a);
  a.add(11);
  checkResult(a);
  for (int k=-100; k<200; k++) {
    a.add(k);
  }
  checkResult(a);
}