public void SeparateEnglishAndChineseTest() { _chineseListTarget = new PrivateObject(_separation); _englishListTarget = new PrivateObject(_separation); _inputList.Add(FIRST); _inputList.Add(LAST); _separation.SeparateEnglishAndChinese(_inputList); Assert.AreEqual(false, (_chineseListTarget.GetFieldOrProperty("_allChinese").Equals(null))); Assert.AreEqual(false, (_englishListTarget.GetFieldOrProperty("_allEnglish").Equals(null))); }