public void GetAllEnglishTest()
{
_inputList.Add(FIRST);
_inputList.Add(LAST);
_separation.SeparateEnglishAndChinese(_inputList);
List <string> allEnglish = _separation.GetAllEnglish();
Assert.AreEqual(ENGLISH_FIRST, allEnglish.ElementAt(0));
Assert.AreEqual(ENGLISH_LAST, allEnglish.Last());
}