public void ToBoolStrict_ValueValid()
        {
            string  str   = "True";
            Boolean?value = ConvertEx.ToBoolStrict(str);

            Assert.AreEqual(value, true);
        }
        public void ToBoolStrict_ValueIsY()
        {
            string  str   = "Y";
            Boolean?value = ConvertEx.ToBoolStrict(str);

            Assert.IsNull(value);
        }
        public void ToBoolStrict_ValueLowercaseTrue()
        {
            string  str   = "true";
            Boolean?value = ConvertEx.ToBoolStrict(str);

            Assert.AreEqual(value, true);
        }
        public void ToBoolStrict_ValueEmpty()
        {
            string  str   = string.Empty;
            Boolean?value = ConvertEx.ToBoolStrict(str);

            Assert.IsNull(value);
        }