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Mahatma VijayMahatma Vijay 

How to write a test class for this class?

/**
 * An apex class that keeps updates of a portal user in sync with its corresponding contact.
   Guest users are never able to access this page.
 */
public with sharing class MyProfilePageController {

    private User user;
    private boolean isEdit = false;

    public User getUser() {
        return user;
    }

    public MyProfilePageController() {
        user = [SELECT id, email, username, usertype, communitynickname, timezonesidkey, languagelocalekey, firstname, lastname, phone, title,
                street, city, countryCode, postalcode, stateCode, localesidkey, mobilephone, extension, fax, contact.email
                FROM User
                WHERE id = :UserInfo.getUserId()];
        // guest users should never be able to access this page
        if (user.usertype == 'GUEST') {
            throw new NoAccessException();
        }
    }

    public Boolean getIsEdit() {
        return isEdit;
    }

    public void edit() {
        isEdit=true;
    }

    public void save() {
        if (user.contact != null) {
            setContactFields(user.contact, user);
        }

        try {
            update user;
            if (user.contact != null) {
                update user.contact;
            }
            isEdit=false;
        } catch(DmlException e) {
            ApexPages.addMessages(e);
        }
    }

    public PageReference changePassword() {
        return Page.ChangePassword;
    }

    public void cancel() {
        isEdit=false;
        user = [SELECT id, email, username, communitynickname, timezonesidkey, languagelocalekey, firstname, lastname, phone, title,
                street, city, countryCode, postalcode, stateCode, localesidkey, mobilephone, extension, fax, contact.email
                FROM User
                WHERE id = :UserInfo.getUserId()];
    }

    public static void setContactFields(Contact c, User u) {
        c.title = u.title;
        c.firstname = u.firstname;
        c.lastname = u.lastname;
        c.email = u.email;
        c.phone = u.phone;
        c.mobilephone = u.mobilephone;
        c.fax = u.fax;
        c.mailingstreet = u.street;
        c.mailingcity = u.city;
        c.mailingstate = u.state;
        c.mailingpostalcode = u.postalcode;
        c.mailingcountry = u.country;
    }
}
Amit Chaudhary 8Amit Chaudhary 8
Please check below post to learn about test classes in salesforce
1) http://amitsalesforce.blogspot.in/search/label/Test%20Class
2) http://amitsalesforce.blogspot.in/2015/06/best-practice-for-test-classes-sample.html

Please try below code.
@isTest 
public class MyProfilePageControllerTest 
{
	static testMethod void testMethodWithoutContact() 
	{
		Test.StartTest(); 
			try
			{
				MyProfilePageController  contrObj = new MyProfilePageController ();
				Boolean b = contrObj.getIsEdit();
				contrObj.edit();
				contrObj.cancel();
				contrObj.save(); 
				contrObj.changePassword(); 
			}Catch(Excpetion ee)
			{}	
		Test.StopTest();
	}

	static testMethod void testMethodWithContact() 
	{
		Id p = [select id from profile where name='Partner Community User'].id; 
        // Please add valid PRofile Name

        Account ac = new Account(name ='Grazitti') ;
        insert ac; 
       
        Contact con = new Contact(LastName ='testCon',AccountId = ac.Id);
        insert con;  
                  
        User user = new User(alias = 'test123', email='test123@noemail.com',
                emailencodingkey='UTF-8', lastname='Testing', languagelocalekey='en_US',
                localesidkey='en_US', profileid = p, country='United States',IsActive =true,
                ContactId = con.Id,
                timezonesidkey='America/Los_Angeles', username='tester@noemail.com');
       
        insert user;
        
		system.runAs(user) 
		{

			try
			{
				MyProfilePageController  contrObj = new MyProfilePageController ();
				Boolean b = contrObj.getIsEdit();
				contrObj.edit();
				contrObj.cancel();
				contrObj.save(); 
				contrObj.changePassword(); 
			}Catch(Excpetion ee)
			{}	
		}	
	}
	
	
}



Please follow below salesforce Best Practice for Test Classes :

1. Test class must start with @isTest annotation if class class version is more than 25
2. Test environment support @testVisible , @testSetUp as well
3. Unit test is to test particular piece of code working properly or not .
4. Unit test method takes no argument ,commit no data to database ,send no email ,flagged with testMethod keyword .
5. To deploy to production at-least 75% code coverage is required
6. System.debug statement are not counted as a part of apex code limit.
7. Test method and test classes are not counted as a part of code limit
9. We should not focus on the  percentage of code coverage ,we should make sure that every use case should covered including positive, negative,bulk and single record .
Single Action -To verify that the the single record produces the correct an expected result .
Bulk action -Any apex record trigger ,class or extension must be invoked for 1-200 records .
Positive behavior : Test every expected behavior occurs through every expected permutation , i,e user filled out every correctly data and not go past the limit .
Negative Testcase :-Not to add future date , Not to specify negative amount.
Restricted User :-Test whether a user with restricted access used in your code .
10. Test class should be annotated with @isTest .
11 . @isTest annotation with test method  is equivalent to testMethod keyword .
12. Test method should static and no void return type .
13. Test class and method default access is private ,no matter to add access specifier .
14. classes with @isTest annotation can't be a interface or enum .
15. Test method code can't be invoked by non test request .
16. Stating with salesforce API 28.0 test method can not reside inside non test classes .
17. @Testvisible annotation to make visible private methods inside test classes.
18. Test method can not be used to test web-service call out . Please use call out mock .
19. You can't  send email from test method.
20.User, profile, organization, AsyncApexjob, Corntrigger, RecordType, ApexClass, ApexComponent ,ApexPage we can access without (seeAllData=true) .
21. SeeAllData=true will not work for API 23 version eailer .
22. Accessing static resource test records in test class e,g List<Account> accList=Test.loadData(Account,SobjectType,'ResourceName').
23. Create TestFactory class with @isTest annotation to exclude from organization code size limit .
24. @testSetup to create test records once in a method  and use in every test method in the test class .
25. We can run unit test by using Salesforce Standard UI,Force.com IDE ,Console ,API.
26. Maximum number of test classes run per 24 hour of period is  not grater of 500 or 10 multiplication of test classes of your organization.
27. As apex runs in system mode so the permission and record sharing are not taken into account . So we need to use system.runAs to enforce record sharing .
28. System.runAs will not enforce user permission or field level permission .
29. Every test to runAs count against the total number of DML issued in the process.

Please do let me know if it helps you.
 
Mahatma VijayMahatma Vijay
Thank you Amit, appreciate your help
Amit Chaudhary 8Amit Chaudhary 8
As you are new in salesforce developer Forum some more information for you keep this community clean.
It's a Best pratice to close every question after marking the Best Answer ( select Best Comment which helped you ) if your issue / question will resolve. So that if some one has the same iss uethat post can help other also