// Since we can't easily mock the IOException, we'll test with invalid data
        writeTestFile("invalid => "); // Invalid format

        try {
            charMappingFile.reload(null);
            // If no exception, the file might have been parsed with warnings
            assertTrue(true);
        } catch (Exception e) {
            // Expected for invalid format
            assertTrue(true);
        }
    }

        }

        @Test
        @DisplayName("Should detect invalid signature")
        void testVerifyInvalidSignature() {
            // Set signed flag
            SMBUtil.writeInt4(ServerMessageBlock2.SMB2_FLAGS_SIGNED, data, 16);

            // Place invalid signature
            byte[] invalidSignature = new byte[SIGNATURE_LENGTH];

     * Used in SMB2 READ and WRITE requests to indicate RDMA channel
     */
    public static final int SMB2_CHANNEL_RDMA_V1 = 0x00000001;

    /**
     * SMB2 Channel constant for RDMA V1 invalidate
     * Used to indicate RDMA with invalidation
     */
    public static final int SMB2_CHANNEL_RDMA_V1_INVALIDATE = 0x00000002;

    /**
     * SMB2 RDMA Transform Capabilities negotiate context ID
     */

    cache.put(0, 10);

    assertEquals(Integer.valueOf(10), cache.get(0, loader));
    assertEquals(Integer.valueOf(1), cache.get(20, loader));
    assertEquals(Integer.valueOf(2), cache.get(34, loader));

    cache.invalidate(0);
    assertEquals(Integer.valueOf(3), cache.get(0, loader));

    cache.put(0, 10);
    cache.invalidateAll();
    assertEquals(Integer.valueOf(4), cache.get(0, loader));
  }

        // Test unavailable SID type (type 6 - DELETED)
        assertNull(sambaHelper.getAccountId(createMockSID(6, "Deleted Account")));

        // Test unavailable SID type (type 7 - INVALID)
        assertNull(sambaHelper.getAccountId(createMockSID(7, "Invalid Account")));
    }

    public void test_getAccountId_smb1_basic() throws SmbException {
        // Note: SMB1 SID testing is limited due to interface constraints

        this.existNextPage = existNextPage;
    }

    /**
     * Gets the number of records to display per page.
     * If the page size is not set or is invalid, returns the default page size.
     *
     * @return the number of records per page
     */
    public int getPageSize() {
        if (pageSize <= 0) {
            pageSize = getDefaultPageSize();
        }

        // When
        RuntimeCIFSException exception = new RuntimeCIFSException(cause);

        // Then
        assertNotNull(exception);
        assertEquals(cause, exception.getCause());
        assertTrue(exception.getMessage().contains("IllegalArgumentException"));
        assertTrue(exception.getMessage().contains("Invalid argument"));
    }

    @Test

	apiRejectedHeaderTotalMD = NewCounterMD(apiRejectedHeaderTotal,
		"Total number of requests rejected for invalid header", "type")
	apiRejectedTimestampTotalMD = NewCounterMD(apiRejectedTimestampTotal,
		"Total number of requests rejected for invalid timestamp", "type")
	apiRejectedInvalidTotalMD = NewCounterMD(apiRejectedInvalidTotal,
		"Total number of invalid requests", "type")

	apiRequestsWaitingTotalMD = NewGaugeMD(apiRequestsWaitingTotal,

                return LocalDateTime.ofInstant(instant, ZoneId.systemDefault());
            } catch (final DateTimeParseException e) {
                logger.debug("Invalid date format: {}", value, e);
            }
        }
        return DfTypeUtil.toLocalDateTime(value);
    }

			t.Fatal(err)
		}
		for _, v := range xl.versions {
			// Signature should match
			if binary.BigEndian.Uint32(v.header.Signature[:]) != 0x8e5a6406 {
				t.Log(v.header.String())
				t.Fatalf("invalid signature 0x%x", binary.BigEndian.Uint32(v.header.Signature[:]))
			}
		}
	})
}

func Test_xlMetaV2Shallow_LoadTimeStamp(t *testing.T) {
	// v0 Saved with