// 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

        assertFalse(region.hasAccess(RdmaAccess.REMOTE_READ), "Should not have remote read access");

        // Test cleanup
        region.close();
        assertFalse(region.isValid(), "Region should be invalid after close");
    }

    @Test
    public void testGetProviderName() {
        assertEquals("TCP Fallback", provider.getProviderName());
    }

    @Test

        currentSsoType = Constants.NONE;
        assertNull(ssoManager.getLoginCredential());
    }

    public void test_getLoginCredential_whenAvailableButNoAuthenticator() {
        currentSsoType = "invalid";
        ssoManager = new SsoManager() {
            @Override
            protected String getSsoType() {
                return currentSsoType;
            }

            @Override

    }

    @Test
    @DisplayName("Invalid: looking up constructor on interface fails")
    void testNoConstructorLookup() {
        // Act & Assert: interfaces have no constructors
        assertThrows(NoSuchMethodException.class, () -> SessionSetupHandler.class.getDeclaredConstructor());
    }

    @Test
    @DisplayName("Invalid: resolving class by null name throws NPE")
    void testClassForNameWithNull() {

		expectedErr error
	}{
		// Set valid authorization header.
		{
			req: &http.Request{
				Header: http.Header{
					"Authorization": []string{token},
				},
			},
			expectedErr: nil,
		},
		// No authorization header.
		{
			req: &http.Request{
				Header: http.Header{},
			},
			expectedErr: errNoAuthToken,
		},
		// Invalid authorization token.
		{
			req: &http.Request{

     */
    public void setExistNextPage(final boolean existNextPage) {
        this.existNextPage = existNextPage;
    }

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

        this.existNextPage = existNextPage;
    }

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

        // Verify exact argument interaction
        verify(locator, times(1)).handleDFSReferral(referral, reqPath);
        verifyNoMoreInteractions(locator);
    }

    // Edge / invalid: null referral or empty/blank path
    @Test
    @DisplayName("handleDFSReferral handles null referral and empty path")
    void handleDfsReferralNullAndEmpty() {

     */
    int SID_TYPE_WKN_GRP = 5;

    /**
     * SID type indicating a deleted account.
     */
    int SID_TYPE_DELETED = 6;

    /**
     * SID type indicating an invalid SID.
     */
    int SID_TYPE_INVALID = 7;

    /**
     * SID type indicating an unknown account type.
     */
    int SID_TYPE_UNKNOWN = 8;

    /**
     * Gets the domain SID for this SID.
     *

                return false;
            }
            return true;
        } catch (final Exception e) {
            // Log the exception at debug level because an invalid URI is not critical and can be ignored.
            logger.debug("Invalid URI: {}", path, e);
        }
        return false;
    }