public void AddTextToList_AddNumberTextToList_List()
{
TextNumber newTextNumber = new TextNumber();
newTextNumber.SetNumber("15");
newTextNumber.AddTextToList();
List <string> result = newTextNumber.GetTextList();
List <string> newList = new List <string>()
{
"five"
};
CollectionAssert.AreEqual(newList, result);
}