public void SetCurrent_WhenUsed_ChangesValue()
{
_iterator.MoveNext();
_iterator.SetCurrent(new Cell(4));
Assert.AreEqual(4, _iterator.Current.Value);
}
private void GuessCandidate(PuzzleIterator puzzleIterator, CellValue candidate)
{
var cell = new Cell(candidate.Value);
puzzleIterator.SetCurrent(cell);
ReduceCandidates();
}