public void BuildWordsStats_Empty()
{
var target = new StatService();
var result = target.BuildWordsStats(null);
Assert.IsNotNull(result);
Assert.AreEqual(result.TotalWordsInText, 0);
Assert.IsNull(result.FiveSmallest);
Assert.IsNull(result.FiveLargest);
Assert.IsNull(result.TenMostUsed);
}
public void BuildWordsStats_Positive()
{
var target = new StatService();
var result = target.BuildWordsStats(_words);
Assert.IsNotNull(result);
Assert.AreEqual(result.TotalWordsInText, 104);
Assert.IsNotNull(result.FiveSmallest);
Assert.AreEqual(result.FiveSmallest.ElementAtOrDefault(0)?.Text, "test");
Assert.AreEqual(result.FiveLargest.ElementAtOrDefault(0)?.Text, "thebiggestone");
Assert.AreEqual(result.TenMostUsed.ElementAtOrDefault(0)?.Text, "evenbigger");
}
