/**
 * An apex page controller that supports self registration of users in communities that allow self registration
 */
public class CommunitiesSelfRegController {

    public String firstName {get; set;}
    public String lastName {get; set;}
    public String email {get; set;}
    public String password {get; set {password = value == null ? value : value.trim(); } }
    public String confirmPassword {get; set { confirmPassword = value == null ? value : value.trim(); } }
    public String communityNickname {get; set { communityNickname = value == null ? value : value.trim(); } }
    
    public CommunitiesSelfRegController() {}
    
    private boolean isValidPassword() {
        return password == confirmPassword;
    }

    public PageReference registerUser() {
    
           // it's okay if password is null - we'll send the user a random password in that case
        if (!isValidPassword()) {
            ApexPages.Message msg = new ApexPages.Message(ApexPages.Severity.ERROR, Label.site.passwords_dont_match);
            ApexPages.addMessage(msg);
            return null;
        }    

        String profileId = null; // To be filled in by customer.
        String roleEnum = null; // To be filled in by customer.
        String accountId = ''; // To be filled in by customer.
        
        String userName = email;

        User u = new User();
        u.Username = userName;
        u.Email = email;
        u.FirstName = firstName;
        u.LastName = lastName;
        u.CommunityNickname = communityNickname;
		u.ProfileId = profileId;
		
        String userId;

        try {
            userId = Site.createExternalUser(u, accountId, password);
        } catch(Site.ExternalUserCreateException ex) {
            List<String> errors = ex.getDisplayMessages();
            for (String error : errors)  {
                ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.ERROR, error));
            }
            
            // This message is used for debugging. Do not display this in the UI to the end user.
            // It has the information around why the user creation failed.
            System.debug(ex.getMessage());
        }
        
        if (userId != null) { 
            if (password != null && password.length() > 1) {
                return Site.login(userName, password, ApexPages.currentPage().getParameters().get('startURL'));
            }
            else {
                PageReference page = System.Page.CommunitiesSelfRegConfirm;
                page.setRedirect(true);
                return page;
            }
        }
        return null;
    }
}

/*Test Class*/
@IsTest public with sharing class CommunitiesSelfRegControllerTest {
    @IsTest(SeeAllData=true) 
    public static void testCommunitiesSelfRegController() {
        CommunitiesSelfRegController controller = new CommunitiesSelfRegController();
        controller.firstName = 'FirstName';
        controller.lastName = 'LastName';
        controller.email = 'test@force.com';
        controller.communityNickname = 'test';
        
        // registerUser will always return null when the page isn't accessed as a guest user
        System.assert(controller.registerUser() == null);    
        
        controller.password = 'abcd1234';
        controller.confirmPassword = 'abcd123';
        System.assert(controller.registerUser() == null);  
    }    
static testMethod void TestProfileType2(){
        test.startTest();
        CommunitiesSelfRegController controller = new CommunitiesSelfRegController();
        Profile p = [SELECT Id FROM Profile WHERE Name='Standard User'];
        User u1 = new User(username='testsfsdfsd@test.com',
                                IsActive=TRUE,
                                FirstName='test',
                                Alias = 'standt1',Country='United Kingdom',Email='demo1@randomdemodomain.com',
                           EmailEncodingKey='UTF-8', LastName='Testing', LanguageLocaleKey='en_US',
                           LocaleSidKey='en_US',ProfileId = p.Id,TimeZoneSidKey='America/Los_Angeles');
        insert u1;
        // now insert your test data
       System.runAs(u1){
           
           controller.registerUser();  
            // you test for your controller
            test.startTest();
        }
}