assertTrue(messageBytes.length >= 12);
        // Message type should be 3 (little endian)
        assertEquals(3, messageBytes[8] & 0xFF);
        assertEquals(0, messageBytes[9] & 0xFF);
        assertEquals(0, messageBytes[10] & 0xFF);
        assertEquals(0, messageBytes[11] & 0xFF);
    }

    @Test
    @DisplayName("Should generate LM and NTLM responses")
    void testLMAndNTLMResponses() throws Exception {

                "String should start with the class name.");
        org.junit.jupiter.api.Assertions.assertTrue(actualString.contains("command=SMB_COM_CREATE_DIRECTORY"),
                "String should contain the command name.");
        org.junit.jupiter.api.Assertions.assertTrue(actualString.contains("directoryName=myDir"),
                "String should contain the directory name.");

        String s = close.toString();
        assertTrue(s.startsWith("SmbComClose["), "string should start with class name");
        assertTrue(s.contains("fid=" + fid), "string should contain the fid value");
        assertTrue(s.contains("lastWriteTime=" + lwt), "string should contain the lwt value");
    }

    assertFalse(
        "removeAll(emptyCollection) should return false",
        collection.removeAll(MinimalCollection.of()));
    expectUnchanged();
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testRemoveAll_nonePresent() {
    assertFalse(
        "removeAll(disjointCollection) should return false",
        collection.removeAll(MinimalCollection.of(e3())));
    expectUnchanged();

            final String message = e.getMessage();
            assertNotNull("Error message should not be null", message);
            assertFalse("Error message should not be empty", message.trim().isEmpty());
            assertTrue("Error message should start with action verb", message.startsWith("Failed to extract"));
            assertTrue("Error message should contain 'text content'", message.contains("text content"));
        }
    }

        assertTrue(endLatch.await(10, TimeUnit.SECONDS), "All threads should complete");
        executor.shutdown();

        // Then - Session should be in consistent state
        // The double-check pattern should prevent inconsistent cleanup
        assertTrue(releaseCount.get() > 0 || acquireCount.get() > 0, "Release and acquire counts should be processed");
    }

    /**

        System.out.printf("  Avg release time: %.2f ns%n", avgReleaseTimeNs);

        // Verify O(1) performance - should be reasonably fast (allowing for JVM overhead)
        assertTrue(avgAllocTimeNs < 10000, "Average allocation should be under 10000ns (O(1) performance)");
        assertTrue(avgReleaseTimeNs < 10000, "Average release should be under 10000ns (O(1) performance)");
        assertEquals(threadCount * operationsPerThread, allocations.get());

    @Test
    @DisplayName("DOS_ERROR_CODES is non‑null and non‑empty")
    void testCodesArrayExistence() {
        assertNotNull(DosError.DOS_ERROR_CODES, "DOS_ERROR_CODES should be non‑null");
        assertTrue(DosError.DOS_ERROR_CODES.length > 0, "DOS_ERROR_CODES should contain at least one mapping");
    }

    @Test
    @DisplayName("Each error code mapping contains exactly two ints")
    void testEachPairLength() {

        };

        // Act & Assert: test with different file names
        assertTrue(filter.accept(mockDir, "document.txt"), "Should accept .txt files in the correct path");
        assertFalse(filter.accept(mockDir, "image.png"), "Should reject non-.txt files");
        assertFalse(filter.accept(mockDir, null), "Should reject null names");

        // Verify getPath was called three times (once for each accept call)

        }

        /**
         * Verifies that isStale returns true for a stale handle.
         */
        @Test
        public void testIsStale_ReturnsTrueWhenStale() {
            when(smbPipeHandle.isStale()).thenReturn(true);
            assertTrue(smbPipeHandle.isStale(), "isStale() should return true for a stale handle.");
        }