public void testValidFileSize() throws Exception {
        validator.validateFileSize(0);
        validator.validateFileSize(1024);
        validator.validateFileSize(1073741824L); // 1GB
    }

    @Test
    public void testNegativeFileSize() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.validateFileSize(-1);
        });
    }

    @Test

            }
        }
    }

    /**
     * Validate file size from server
     *
     * @param size file size
     * @throws SmbException if size is invalid
     */
    public void validateFileSize(long size) throws SmbException {
        totalValidations.incrementAndGet();

        if (size < 0) {
            failedValidations.incrementAndGet();
            log.warn("Negative file size: {}", size);