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kirankumarreddy punurukirankumarreddy punuru 

Method does not exist or incorrect signature

I am writing a test class for standard controller ,in that class iam calling another method but it is showing 
Method does not exist or incorrect signature: [ApexPages.StandardController].saveOpp() at line 38 column 19

my test class is :

public  class OLIEditAllControllerTestClass {
public static  testMethod void testOLIEditAllController() {
PageReference pageRef = Page.OLIeditAll;

Opportunity opp =  new Opportunity();
opp.Name = 'Test Opp';
opp.StageName = 'client intrest';
opp.CloseDate = System.now().date();
insert opp;
 OpportunityLineItem oli = new OpportunityLineItem();
 oli.Quantity__c = 2;
 oli.OpportunityId =opp.Id;
 oli.Quantity =5;
 oli.UnitPrice =100;
 oli.Days__c =3;
 oli.Weeks__c =5;
 oli.Buffer__c =0.04;
 insert oli;
//List<OpportunityLineItem> listoli = new List<OpportunityLineItem>();
List<OpportunityLineItem> listoli1 = [SELECT  Id,Unitprice,Quantity from OpportunityLineItem ];
ApexPages.StandardSetController ssc = new ApexPages.StandardSetController(listoli1);
//OLIEditAllController controller = new OLIEditAllController(ssc);
ApexPages.StandardController controller = new ApexPages.StandardController(oli);

String IdString ='test string'; 
String OpptyName ='test opportunity';
List<OpportunityLineItem> myList = new List<OpportunityLineItem>();
//List<OpportunityLineItem> listoli1 = [SELECT  Id,Unitprice,Quantity from OpportunityLineItem ];
String nextPage = controller.saveOpp().getUrl();
String nextPage1 = controller.redirectToOpp().getUrl();
String nextPage2 = controller.cancelOpp().getUrl();

System.assertEquals('/apex/failure?error=noParam', nextPage);
System.assertEquals('/apex/failure?error=noParam', nextPage1);
System.assertEquals('/apex/failure?error=noParam', nextPage2);

ApexPages.currentPage().getParameters().put(' test string');

controller = new OLIEditAllController();

controller.setOpptyName ('OpptyName ');
controller.setIdString  ('IdString');
controller.setlstLineItem (listoli1);

nextPage = controller.saveOpp().getUrl();
nextPage1 = controller.redirectToOpp().getUrl();
nextPage2 = controller.cancelOpp().getUrl();

System.assertEquals('/apex/success', nextPage);
System.assertEquals('/apex/success', nextPage1);
System.assertEquals('/apex/success', nextPage2);
Hi kirankumarreddy,
You should create instance of the class whose method you need to call because here controller is a instance of standard controller which does not has this method saveOpp.

Sandeep Singhal
kirankumarreddy punurukirankumarreddy punuru
after creating instance for my class it is showing an error
Constructor not defined: [OLIEditAllController].<Constructor>() at line 28 column 35
which i have mentioned in comments
Amit Chaudhary 8Amit Chaudhary 8
Please check below blog. I hope that will help u

If you are using StandardController then you should create constructor like below
ApexPages.StandardController sc = new ApexPages.StandardController(testAccount);
myControllerExtension testAccPlan = new myControllerExtension(sc);
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 let us know if this post will help you

Amit Chaudhary