}
    }

    @Test
    @DisplayName("getDefaultPort returns SMB default port 445")
    void testGetDefaultPort() {
        // Act
        int port = handler.getDefaultPort();

        // Assert
        assertEquals(445, port);
        assertEquals(SmbConstants.DEFAULT_PORT, port);
    }

    @Test
    @DisplayName("openConnection creates SmbFile for valid URL")

        transport.server = serverData;

        smbtStatic = mockStatic(SmbTransport.class);
        smbtStatic.when(() -> SmbTransport.getSmbTransport(addr, 445, inet, 0, null)).thenReturn(transport);
        smbtStatic.when(() -> SmbTransport.getSmbTransport(addr, 445)).thenReturn(transport);
    }

    @AfterEach
    void tearDown() {
        if (smbtStatic != null) {
            smbtStatic.close();
        }
    }

    }

    @Test
    public void testCreateConnection() throws Exception {
        InetSocketAddress remote = new InetSocketAddress("localhost", 445);
        InetSocketAddress local = null;

        RdmaConnection connection = provider.createConnection(remote, local);
        assertNotNull(connection, "Connection should not be null");

        InetAddress remoteAddr = InetAddress.getByName("192.168.1.100");

        NetworkInterfaceInfo localNic = new NetworkInterfaceInfo(localAddr, 1);
        NetworkInterfaceInfo remoteNic = new NetworkInterfaceInfo(remoteAddr, 445);

        // Mock transport doesn't have isConnected, but we can work around it

        ChannelInfo channel = new ChannelInfo("test-channel", mockTransport, localNic, remoteNic);

    /**
     * Verify that the hard‑coded default values are present.
     */
    @Test
    @DisplayName("Default constant values match expectations")
    void defaultValues() {
        assertEquals(445, SmbConstants.DEFAULT_PORT);
        assertEquals(10, SmbConstants.DEFAULT_MAX_MPX_COUNT);
        assertEquals(30000, SmbConstants.DEFAULT_RESPONSE_TIMEOUT);
        assertEquals(35000, SmbConstants.DEFAULT_SO_TIMEOUT);

    static Stream<Arguments> portSpecs() {
        return Stream.of(
                // spec, expectedPort
                Arguments.of("smb://server/share", SmbConstants.DEFAULT_PORT), Arguments.of("smb://server:445/share", 445),
                Arguments.of("smb://server:139/share", 139));
    }

    @ParameterizedTest(name = "parseURL: {0} -> port {1}")
    @MethodSource("portSpecs")

        UniAddress uniAddress = new UniAddress(InetAddress.getByName("127.0.0.1"));
        SmbTransport transport = new SmbTransport(uniAddress, 445, null, 0);
        serverData = transport.new ServerData();
        response = new SmbComNegotiateResponse(serverData);
    }

    @Test
    void testReadParameterWordsWireFormat() {