NbtAddress nbtAddress = new NbtAddress(mockName, testAddressInt, false, NbtAddress.H_NODE);
        assertEquals(NbtAddress.SMBSERVER_NAME, nbtAddress.firstCalledName());
    }

    @Test
    void testFirstCalledName_SpecialHexCode() {
        // Test firstCalledName with special hex codes
        mockName = new Name(mockConfig, "DOMAIN", 0x1B, null); // Domain Master Browser