Hi, 

I would like to create a test class where I need to test the details of logged in user in SF community. What I am doing is, I take the userId of the logged in user and then fetch the contactId from user object. And with that contact Id, I fetch the account id associated with it. But when I try to assign contact id to the user object in test class, I get the below exception.

System.DmlException: Update failed. First exception on row 0 with id 0050W0000070R3kQAE; first error: UNKNOWN_EXCEPTION, You can't create a contact for this user because the org doesn't have the necessary permissions. Contact Salesforce Customer Support for help.: []

Here is my test class code.

@isTest
public class CommunityHomeControllerTest {
    
    @testSetup static void recordCreation() {
		
       	UserRole r = new UserRole(name = 'TEST ROLE');
    	insert r;
        User user = new User();
        user.ProfileID = [Select Id From Profile Where Name='System Administrator'].id;
        user.EmailEncodingKey = 'ISO-8859-1';
        user.LanguageLocaleKey = 'en_US';
        user.TimeZoneSidKey = 'America/New_York';
        user.LocaleSidKey = 'en_US';
        user.FirstName = 'first';
        user.LastName = 'last';
        user.Username = 'test@appirio1.com';   
        user.CommunityNickname = 'testUser123';
        user.Alias = 't1';
        user.Email = 'no@email.com';
        user.IsActive = true;        
        user.PortalRole = 'Manager';
        insert user;
	}
    
    static testMethod void getTotalReports(){
        Test.StartTest();
        User user = [Select id, contactId from user where Username = 'test@appirio1.com'];
        System.RunAs(user) {            
            Account a = new Account(Name='Test Account Name');
            insert a;           
            Contact c = new Contact(LastName = 'Contact Last Name');
            c.AccountId = a.Id;
        	insert c;                   
            user.ContactId = c.id;
            update user;           
            PageReference pageRef = Page.CommunityHome;
            Test.setCurrentPage(pageRef);
            CommunityHomeController controller = new CommunityHomeController();
            controller.getParentAccounts();
            Test.stopTest();
        }                
    }
}

Thank you in advance.