}

    @Test
    @DisplayName("Test getNext returns null when no chained message")
    void testGetNextWithNoChainedMessage() {
        // Given
        when(request.getNext()).thenReturn(null);

        // When
        CommonServerMessageBlockRequest result = request.getNext();

        // Then
        assertNull(result);
        verify(request, times(1)).getNext();
    }

    assertEquals("::1", HostAndPort.fromString("[::1]:80").requireBracketsForIPv6().getHost());
    // Non-bracketed non-IPv6 works fine.
    assertEquals("x", HostAndPort.fromString("x").requireBracketsForIPv6().getHost());
    assertEquals("x", HostAndPort.fromString("x:80").requireBracketsForIPv6().getHost());

    // Non-bracketed IPv6 fails.
    assertThrows(

    assertEquals("::1", HostAndPort.fromString("[::1]:80").requireBracketsForIPv6().getHost());
    // Non-bracketed non-IPv6 works fine.
    assertEquals("x", HostAndPort.fromString("x").requireBracketsForIPv6().getHost());
    assertEquals("x", HostAndPort.fromString("x:80").requireBracketsForIPv6().getHost());

    // Non-bracketed IPv6 fails.
    assertThrows(

    void testGetNext() {
        // Test case for getNext method
        Request nextRequest = mock(Request.class); // Mock a chained request
        when(mockRequest.getNext()).thenReturn(nextRequest);

        Request actualNextRequest = mockRequest.getNext();

        assertEquals(nextRequest, actualNextRequest, "Next request should match the mocked object.");
        verify(mockRequest, times(1)).getNext();
    }

    @Test

        // Assert - Verify URL components
        assertEquals("smb", url1.getProtocol());
        assertEquals("host", url1.getHost());
        assertEquals(445, url1.getPort());
        assertEquals("/share", url1.getPath());

        assertEquals("smb", url2.getProtocol());
        assertEquals("host", url2.getHost());
        assertEquals(1234, url2.getPort());
        assertEquals("/share/file.txt", url2.getPath());

    }

    @Override
    public ServerMessageBlock2Request<T> ignoreDisconnect() {
        return this;
    }

    @Override
    public ServerMessageBlock2Request<?> getNext() {
        return (ServerMessageBlock2Request<?>) super.getNext();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#isCancel()
     */
    @Override
    public boolean isCancel() {

        return new SmbFile(u);
    }

    @Override
    protected void parseURL(final URL u, String spec, final int start, int limit) {
        final String host = u.getHost();
        String path, ref;
        int port;

        if (spec.equals("smb1://")) {
            spec = "smb1:////";
            limit += 2;

        }
        return this.transportContext;
    }

    @Override
    protected void parseURL(final URL u, String spec, final int start, int limit) {
        final String host = u.getHost();
        String path, ref;
        int port;

        if (spec.equals("smb://")) {
            spec = "smb:////";
            limit += 2;

     * @return the new first entry for the table
     */
    @GuardedBy("this")
    @Nullable E removeFromChain(E first, E entry) {
      int newCount = count;
      E newFirst = entry.getNext();
      for (E e = first; e != entry; e = e.getNext()) {
        E next = copyEntry(e, newFirst);
        if (next != null) {
          newFirst = next;
        } else {
          newCount--;
        }
      }

    @DisplayName("Test Request methods inherited from CommonServerMessageBlockRequest")
    void testInheritedMethods() {
        // Given
        when(request.isResponseAsync()).thenReturn(true);
        when(request.getNext()).thenReturn(nextRequest);
        when(request.split()).thenReturn(nextRequest);
        when(request.allowChain(nextRequest)).thenReturn(true);
        when(request.createCancel()).thenReturn(nextRequest);