public static void SetUpBeforeClass(TestContext context)
        {
            ushort id = 42;
            string name = "John Smith";
            bool dbs = true;

            uint roles = 0, availability = 0, instruments = 0;
            roles |= (uint)(1 << Constants.Role.WELCOME);
            roles |= (uint)(1 << Constants.Role.REFRESHMENTS);
            roles |= (uint)(1 << Constants.Role.DUTY_MANAGER);
            roles |= (uint)(1 << Constants.Role.PRAYERS);

            availability |= (1 << 1);
            availability |= (1 << 3);
            availability |= (1 << 5);
            availability |= (1 << 6);

            instruments |= (uint)(1 << Constants.Instrument.VOICE);
            instruments |= (uint)(1 << Constants.Instrument.GUITAR);
            instruments |= (uint)(1 << Constants.Instrument.VOICE_GUITAR);

            worker = new Worker(id, name, roles, availability, instruments, dbs);
        }