public void ReturnsWordsWithSpecifiedLength()
{
string word1 = "word1";
string word2 = "word2";
string word3 = "word";
repository.Add(word1);
repository.Add(word2);
repository.Add(word3);
List <string> words = new List <string>(repository.GetWordsWithLength(5));
Assert.AreEqual(2, words.Count);
Assert.IsTrue(words.Contains(word1));
Assert.IsTrue(words.Contains(word2));
}
