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YBeurierYBeurier 

Test Class for controler - Routine feeding data to a VisualForce page generating a PDF Layout

Hi,

 

I've got a question relating to a controller extension i made for a visualforce page.

The goal is to supply the list of related object columns for generating a PDF layout using both the Opportunity fields and related object fields.

This works great, but I am now wondering how to write test classes for controller classes?

 

This is the summarised code for the controller extension.

 

public class Layout_LinkOppLines{

   public List<Tender__c> OpplineTender{get;set;}

   public Layout_LinkOppLines(ApexPages.StandardController controller){

      OpplineTender=[select Id, Linked_Project__c, Comments__c, Role__c, Tender_Win_Loss__c, Linked_Account__c 
       from Tender__C 
       where Linked_Project__c =:(ApexPages.CurrentPage().getParameters().get('id'))];
   }
}

How do I structure the Test Class to allow a good code coverage.

I have done a few test class for triggers, but none of Controller classes.

Looking at the developper help file did not bring me anywhere.

 

Thanks

Best Answer chosen by Admin (Salesforce Developers) 
Jia HuJia Hu

Try this way,

 

static testMethod void myTest() {
PageReference pageRef = Page.Name_Of_the_VFPage;
Test.setCurrentPage(pageRef);
Opportunity op = [Select Id from Opportunity limit 1]; // if the standard controller is on Opportunity
ApexPages.Standardcontroller sc1 = new ApexPages.Standardcontroller(op);
System.CurrentPageReference().getParameters().put('Id', 'xxxxxxxx');

Layout_LinkOppLines inst = new Layout_LinkOppLines(sc1);

}

All Answers

Jia HuJia Hu

Try this way,

 

static testMethod void myTest() {
PageReference pageRef = Page.Name_Of_the_VFPage;
Test.setCurrentPage(pageRef);
Opportunity op = [Select Id from Opportunity limit 1]; // if the standard controller is on Opportunity
ApexPages.Standardcontroller sc1 = new ApexPages.Standardcontroller(op);
System.CurrentPageReference().getParameters().put('Id', 'xxxxxxxx');

Layout_LinkOppLines inst = new Layout_LinkOppLines(sc1);

}

This was selected as the best answer
YBeurierYBeurier

Hi,

 

Thanks a lot for that.

I have tried to copy the code on the bottom of my class. It gave me the error: 

 

System.QueryException: List has no rows for assignment to SObject

 

After a quick search on the forum, I noticed that in API version 24 and later, all objects are set to 'Private' as default.

 

I have then created an other class as below and it works thank to the @IsTest(SeeAllData=True).

 

@IsTest(SeeAllData=true)

class Layout_LinkOppLines_TestClass {
static testMethod void myTest() {
PageReference pageRef = Page.PDF_Project_Summary;
Test.setCurrentPage(pageRef);
Opportunity op = [Select Id from Opportunity limit 1]; // if the standard controller is on Opportunity
ApexPages.Standardcontroller sc1 = new ApexPages.Standardcontroller(op);
System.CurrentPageReference().getParameters().put('Id', 'xxxxxxxx');
Layout_LinkOppLines inst = new Layout_LinkOppLines(sc1);
}
}

 

Is this good practice? Should I be in a position to use the flag in my main class?

 

 
Jia HuJia Hu
try this,
System.CurrentPageReference().getParameters().put('Id', op.Id);

@IsTest(SeeAllData=True) is only used for test class, not for your main class.
YBeurierYBeurier

Thanks a Lot. I have put the tag, and set the API version to 23 and the Test passes fine.