return this.delegate.getNativeOs();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Configuration#getNativeLanman()
     */
    @Override
    public String getNativeLanman() {
        return this.delegate.getNativeLanman();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Configuration#getMaximumBufferSize()
     */
    @Override

        when(mockDelegate.getDefaultUsername()).thenReturn("testuser");
        when(mockDelegate.getDefaultPassword()).thenReturn("testpass");
        when(mockDelegate.getNativeLanman()).thenReturn("jCIFS");

        // When
        String oemEncoding = delegatingConfig.getOemEncoding();
        String netbiosHostname = delegatingConfig.getNetbiosHostname();

    }

    @Test
    @DisplayName("Test SMB configuration getters")
    void testSmbConfigurationGetters() {
        assertEquals("jCIFS", config.getNativeLanman());
        assertNull(config.getNativeOs());
        assertEquals(1, config.getVcNumber());
        assertEquals(0, config.getCapabilities());
        assertNull(config.getMinimumVersion());

    String getNativeOs();

    /**
     *
     * Property {@code jcifs.smb.client.nativeLanMan} (string, default {@code jCIFS})
     *
     * @return Lanman string to report
     */
    String getNativeLanman();

    /**
     *
     * Property {@code jcifs.smb.client.rcv_buf_size} (int, default 65535)
     *
     * @return receive buffer size, in bytes
     * @deprecated use getReceiveBufferSize instead

        return this.smbNotifyBufferSize;
    }

    @Override
    public int getMaxMpxCount() {
        return this.maxMpxCount;
    }

    @Override
    public String getNativeLanman() {
        return this.nativeLanMan;
    }

    @Override
    public String getNativeOs() {
        return this.nativeOs;
    }

    @Override
    public int getVcNumber() {