when(locator.getURL()).thenReturn(createSmbURL("smb://"));

        // Mock successful but empty response
        when(treeHandle.send(any(), any(), (RequestParam[]) any())).thenAnswer(invocation -> {
            // The response is the second argument
            Object response = invocation.getArgument(1);

            Smb2ReadResponse smb2Resp = mock(Smb2ReadResponse.class);
            when(smb2Resp.getDataLength()).thenReturn(3);
            when(mockTree.send(any(Request.class), any(RequestParam.class))).thenAnswer(inv -> (CommonServerMessageBlockResponse) smb2Resp);

            byte[] buf = new byte[16];

            // Skip advances internal file pointer; next read should use this offset
            in.skip(2);

                .thenReturn(resp);

        CommonServerMessageBlockResponse out = handle.send(req, RequestParam.NO_RETRY);
        assertSame(resp, out);

        verify(treeConnection, times(1)).send(eq(resourceLoc), eq((CommonServerMessageBlockRequest) req), isNull(),
                any(RequestParam[].class));
    }

    @Test

        when(peek.getReadDataAvailable()).thenReturn(7);
        when(ioResp.getOutputData()).thenReturn(peek);

        when(tree.send(any(Smb2IoctlRequest.class), eq(RequestParam.NO_RETRY))).thenReturn(ioResp);

        // Act
        int available = stream.available();

        // Assert
        assertEquals(7, available, "Should return available bytes reported by server");

        verify(tree, never()).send(any(CommonServerMessageBlockRequest.class), any(SmbComBlankResponse.class), any(RequestParam[].class));

        // Second release: should close now via SMB2 path
        h.release();
        verify(tree, times(1)).send(isA(Smb2CloseRequest.class), eq(RequestParam.NO_RETRY));
        verify(tree, times(1)).release();
    }

    @Test

                    final Smb2WriteResponse resp = th.send(request, RequestParam.NO_RETRY);
                    cnt = resp.getCount();
                } else {
                    final SmbComWriteAndX request =
                            new SmbComWriteAndX(th.getConfig(), fh.getFid(), this.fp, len - w - off, b, off, w, null);
                    th.send(request, this.write_andx_resp, RequestParam.NO_RETRY);

            throws CIFSException {
        return send((CommonServerMessageBlockRequest) request, request.getResponse(),
                params != null && params.length > 0 ? EnumSet.copyOf(Arrays.asList(params)) : EnumSet.noneOf(RequestParam.class));
    }

            final T response, final RequestParam... params) throws CIFSException {
        return send(loc, request, response,
                params.length == 0 ? EnumSet.noneOf(RequestParam.class) : EnumSet.copyOf(Arrays.asList(params)));
    }

     *
     * @param req
     * @param params
     * @return response
     * @throws CIFSException
     */
    public <T extends CommonServerMessageBlockResponse> T send(final jcifs.internal.Request<T> req, final RequestParam... params)
            throws CIFSException {
        return send(req, null, params);
    }

    /**
     * @param request
     * @param response
     * @param params
     * @return response

        // do not actually perform network call
        when(tree.send(any(jcifs.internal.Request.class), any(RequestParam.class))).thenReturn(null);

        raf.setLength(100L);

        verify(tree, times(1)).send(any(Smb2SetInfoRequest.class), eq(RequestParam.NO_RETRY));
    }

    @Test
    @DisplayName("setLength(): NT SMBs capability uses Trans2SetFileInformation")