assertFalse(future.isCancelled());
  }

  public void testSetValue_simpleThreaded() throws Exception {
    SettableFuture<Integer> future = SettableFuture.create();
    assertTrue(future.set(42));
    // Later attempts to set the future should return false.
    assertFalse(future.set(23));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.<Integer>create()));

        // Total bytes written: 8+8+8+8+2+6=40
        // But writeInt8 at position 34 needs to access position 34+7=41
        // So we need at least 42 bytes in the array
        byte[] dst = new byte[42];

        // When
        int result = trans2SetFileInformation.writeDataWireFormat(dst, 0);

        // Then
        assertEquals(40, result); // Returns 40 bytes written
    }

        // andxOffset (ignored when 0xFF)
        buf[36] = 0;
        buf[37] = 0;
        // byteCount at index start + 1 + wordCount*2 = 33 + 1 + 8 = 42
        ServerMessageBlock.writeInt2(20, buf, 42);

        int len = block.decode(buf, 0);
        assertTrue(len > 0);
        assertEquals(4, block.wordCount);
        assertNull(block.andx);
    }

    @Test

            availField.setAccessible(true);
            availField.setInt(resp, 42);
            return resp;
        }).when(tree).send(any(TransPeekNamedPipe.class), any(TransPeekNamedPipeResponse.class), eq(RequestParam.NO_RETRY));

        int available = stream.available();
        assertEquals(42, available, "Should return available bytes reported by SMB1 peek");

        verify(fd, never()).markClosed();

        // Act + Assert
        CIFSException ex = assertThrows(CIFSException.class, () -> handle.hasCapability(42));
        assertEquals("capability check failed", ex.getMessage());
        verify(handle).hasCapability(42);
    }

    @Test
    @DisplayName("getSendBufferSize(): returns configured value")
    void getSendBufferSize_returns() throws Exception {

            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

            assertNotNull(buffer);
            // Verify through encode since there are no getters
            int expectedSize = 4 + 2 * path.length();
            assertEquals(expectedSize, buffer.size());
        }

        @Test
        @DisplayName("Should create buffer with empty path")
        void testConstructorWithEmptyPath() {

        doThrow(new SmbException("capability check failed")).when(transport).hasCapability(eq(42));
        SmbException ex = assertThrows(SmbException.class, () -> transport.hasCapability(42));
        assertTrue(ex.getMessage().contains("failed"));
        verify(transport).hasCapability(42);
    }

    // Edge: disconnected status toggles
    @ParameterizedTest

        buffer[33] = 4; // wordCount
        buffer[34] = (byte) 0xFF; // andxCommand
        buffer[36] = 0; // andxOffset low
        buffer[37] = 0; // andxOffset high
        SMBUtil.writeInt2(20, buffer, 42); // byteCount

        int length = testBlock.decode(buffer, 0);

        assertTrue(length > 0);
        assertEquals(4, testBlock.wordCount);
        assertNull(testBlock.getAndx());
    }

    @Test

                    capturedFileId[0] = fileId[0];
                }
            }
        };

        // When
        byte[] testId = new byte[] { 42 };
        anonymousImpl.setFileId(testId);

        // Then
        assertEquals(42, capturedFileId[0], "Anonymous implementation should work correctly");
    }

    @Test
    @DisplayName("Should verify all known implementations")

        SmbComLockingAndX cmd = new SmbComLockingAndX(cfg);
        setField(cmd, "fid", 42);
        setField(cmd, "typeOfLock", (byte) 0x07);
        setField(cmd, "newOpLockLevel", (byte) 0x02);
        String repr = cmd.toString();
        assertTrue(repr.contains("fid=42"));
        assertTrue(repr.contains("typeOfLock=7"));
        assertTrue(repr.contains("newOplockLevel=2"));
    }