Replaced vector of bytes with bytes string literal for expected output of...

        let unciphered_data_1 = cr.update(ciphered_data);

        let unciphered_data_2 = cr.finalize();

        // A string translating to "I love turtles." with a trailing

        // 0x1 as last byte.

        let expected_unciphered_data = vec![

            0x49_u8, 0x20_u8, 0x6c_u8, 0x6f_u8, 0x76_u8, 0x65_u8, 0x20_u8, 0x74_u8, 

            0x75_u8, 0x72_u8, 0x74_u8, 0x6c_u8, 0x65_u8, 0x73_u8, 0x2e_u8, 0x1_u8

        ];

        let expected_unciphered_data = b"I love turtles.\x01";

        assert!(unciphered_data_2.len() == 0);

        assert_eq!(

            unciphered_data_1,

            unciphered_data_1.as_slice(),

            expected_unciphered_data

        );

    }