public void TestSearchBe()
        {
            var policeMan = new CharsetPoliceMan();
            var body      = "<html><head><meta charset=\"utf-16\"></head>";

            var expected = 36;
            var actual   = policeMan.SearchCharset(Encoding.BigEndianUnicode.GetBytes(body));

            Assert.AreEqual(expected, actual, "charsetが含まれている。");
        }
        public void TestSearchCharsetUppercase()
        {
            var policeMan = new CharsetPoliceMan();
            var body      = "<HTML><HEAD><META CHARSET=\"UTF-8\"></HEAD>";

            // 当面大文字は無視
            //var expected = 18;
            var expected = -1;
            var actual   = policeMan.SearchCharset(Encoding.UTF8.GetBytes(body));

            Assert.AreEqual(expected, actual, "CHARSETが含まれているが対象外。");
        }