public void testToYalePinyinStringArray() { // any input of non-Chinese characters will return null { Assert.IsNull(PinyinHelper.toYalePinyinStringArray('A')); Assert.IsNull(PinyinHelper.toYalePinyinStringArray('z')); Assert.IsNull(PinyinHelper.toYalePinyinStringArray(',')); Assert.IsNull(PinyinHelper.toYalePinyinStringArray('。')); } // Chinese characters // single pronounciation { String[] expectedPinyinArray = new String[] { "li3" }; String[] pinyinArray = PinyinHelper.toYalePinyinStringArray('李'); Assert.AreEqual(expectedPinyinArray.Length, pinyinArray.Length); for (int i = 0; i < expectedPinyinArray.Length; i++) { Assert.AreEqual(expectedPinyinArray[i], pinyinArray[i]); } } { String[] expectedPinyinArray = new String[] { "chyou2" }; String[] pinyinArray = PinyinHelper.toYalePinyinStringArray('球'); Assert.AreEqual(expectedPinyinArray.Length, pinyinArray.Length); for (int i = 0; i < expectedPinyinArray.Length; i++) { Assert.AreEqual(expectedPinyinArray[i], pinyinArray[i]); } } { String[] expectedPinyinArray = new String[] { "jwang1" }; String[] pinyinArray = PinyinHelper.toYalePinyinStringArray('桩'); Assert.AreEqual(expectedPinyinArray.Length, pinyinArray.Length); for (int i = 0; i < expectedPinyinArray.Length; i++) { Assert.AreEqual(expectedPinyinArray[i], pinyinArray[i]); } } // multiple pronounciations { String[] expectedPinyinArray = new String[] { "chwan2", "jwan4" }; String[] pinyinArray = PinyinHelper.toYalePinyinStringArray('传'); Assert.AreEqual(expectedPinyinArray.Length, pinyinArray.Length); for (int i = 0; i < expectedPinyinArray.Length; i++) { Assert.AreEqual(expectedPinyinArray[i], pinyinArray[i]); } } { String[] expectedPinyinArray = new String[] { "lyu4", "lu4" }; String[] pinyinArray = PinyinHelper.toYalePinyinStringArray('绿'); Assert.AreEqual(expectedPinyinArray.Length, pinyinArray.Length); for (int i = 0; i < expectedPinyinArray.Length; i++) { Assert.AreEqual(expectedPinyinArray[i], pinyinArray[i]); } } }