public void when_encode_empty_string_it_should_produce_zero_length_array()
        {
            var sut = new Utf8ByteStringHeaderValueCodec();

            var value = sut.Encode(string.Empty);

            value.Should().BeEquivalentTo(new byte[0]);
        }
        public void when_encode_it_should_produce_original_byte_array()
        {
            const string expected = "Поезд едет 🚃";

            var sut = new Utf8ByteStringHeaderValueCodec();

            var value = sut.Encode(expected);

            value.Should().BeEquivalentTo(Encoding.UTF8.GetBytes(expected));
        }