public void WordPuzzle_SolvePuzzle_5()
{
// prepare
var mockLogger = new Mock <ILogger>();
var wordDictionary = new WordDictionary(mockLogger.Object);
var wordSearch = new WordSearch(wordDictionary, mockLogger.Object);
// execute
wordDictionary.LoadDictionaryFile("");
wordSearch._firstWord = "cool";
wordSearch._lastWord = "span";
var results = wordSearch.GetFastestRoute();
// assert
Assert.AreEqual(5, results.Count - 1);
}