smbComTreeDisconnect = new SmbComTreeDisconnect(null);
        });

        // Verify the exception message indicates the config is null
        assertTrue(exception.getMessage().contains("config"));
    }

    /**
     * Test constructor with mock configuration
     */
    @Test
    @DisplayName("Test constructor with mock configuration")

                    assertThrows(SMBProtocolDecodingException.class, () -> notification.readBytesWireFormat(buffer, 0));

            assertEquals("Expected structureSize = 24", exception.getMessage());
        }

        @ParameterizedTest
        @DisplayName("Should read different oplock levels correctly")
        @ValueSource(bytes = { 0x00, 0x01, 0x02, 0x08, (byte) 0xFF })

            SMBProtocolDecodingException exception =
                    assertThrows(SMBProtocolDecodingException.class, () -> response.haveResponse(buffer, 0, 100));

            assertTrue(exception.getMessage().contains("Signature verification failed"));
        }
    }

    @Nested
    @DisplayName("Concurrency Tests")
    class ConcurrencyTests {

        @Test

        try {
            rateLimiter.checkAttempt(username, ip);
            fail("Should throw SmbException for locked account");
        } catch (SmbException e) {
            assertTrue(e.getMessage().contains("locked out"), "Should indicate account lockout");
        }
    }

    @Test
    public void testIpRateLimit() throws Exception {
        String ip = "192.168.1.3";

  private enum OtherOrder {
    FIRST,
    SECOND,
    THIRD;
  }

  // Given a sequence of lock acquisition descriptions
  // (e.g. "LockA -> LockB", "LockB -> LockC", ...)
  // Checks that the exception.getMessage() matches a regex of the form:
  // "LockA -> LockB \b.*\b LockB -> LockC \b.*\b LockC -> LockA"
  private void checkMessage(IllegalStateException exception, String... expectedLockCycle) {

            if (this.negotiated == null) {
                connect(this.transportContext.getConfig().getResponseTimeout());
            }
        } catch (final IOException ioe) {
            throw new SmbException(ioe.getMessage(), ioe);
        }
        final SmbNegotiationResponse r = this.negotiated;
        if (r == null) {
            throw new SmbException("Connection did not complete, failed to get negotiation response");
        }

        // When/Then: Should throw SmbException
        SmbException ex = assertThrows(SmbException.class, () -> poolSpy.getChallenge(ctx, address));
        assertTrue(ex.getMessage().contains("Connection failed"));
    }

    @Test
    @DisplayName("Should perform logon to IPC$ share")
    void testLogon() throws Exception {
        // Given: Mock transport, session and tree

                            try {
                                return "<<< " + new String(bytes, 0, len, encoding);
                            } catch (final Exception e) {
                                return "<<< <" + e.getMessage() + ">";
                            }
                        });
                        dfos.write(bytes, 0, length);
                    }
                    length = bis.read(bytes);
                }

        SMBProtocolDecodingException exception =
                assertThrows(SMBProtocolDecodingException.class, () -> response.readBytesWireFormat(buffer, 0));
        assertEquals("Expected structureSize = 9", exception.getMessage());
    }

    @Test
    @DisplayName("Should handle empty notification list")
    void testEmptyNotificationList() throws Exception {
        // Given
        byte[] buffer = new byte[256];

        try {
            testTransformer.transform(responseData);
            fail("Should throw CrawlerSystemException");
        } catch (CrawlerSystemException e) {
            assertEquals("Test exception", e.getMessage());
        }

        assertEquals(1, testTransformer.getTransformCallCount());
    }

    /**
     * Test getData implementation
     */
    public void test_getData_implementation() {