Hi,

  We have created new custom object called SPR__c which is related to opportunity in SPR we have created a button which will call the below class from visual force page.  below is the class

Class

public class  check_spr_coterm
{
 
 Integer Olicheck;
 Integer Athcheck;
 String PageID; 
 String P_SPR_Approver_Director;
 String P_SPR_Approver_RVP;
 String P_SPR_Approver_GVP;
 String P_SPR_Approver_EVP;  
 
 public check_spr_coterm()
 {
   SPR__c SP;
   //OpportunityLineItem OLI;
    
   SP = [select id,Opportunity__c from SPR__c 
          where Id = : ApexPages.currentPage().getParameters().get('id') limit 1];
   
   PageID = ApexPages.currentPage().getParameters().get('id');
   
  List<SPR__c> SPRO = new List<SPR__c>();

   SPRO = [select id,SPR_Approver_Director__c,SPR_Approver_RVP__c,SPR_Approver_GVP__c,SPR_Approver_EVP__c from SPR__c 
           where 
           id = :ApexPages.currentPage().getParameters().get('id') and
           ( SPR_Approver_Director__c = null or SPR_Approver_RVP__c = null or 
             SPR_Approver_GVP__c = null or SPR_Approver_EVP__c = null ) limit 1 ];
             
      if(!SPRO.isEmpty()) // check if list is not empty
        {       
       P_SPR_Approver_Director = SPRO[0].SPR_Approver_Director__c;
       P_SPR_Approver_RVP = SPRO[0].SPR_Approver_RVP__c;  
       P_SPR_Approver_GVP = SPRO[0].SPR_Approver_GVP__c;
       P_SPR_Approver_EVP = SPRO[0].SPR_Approver_EVP__c;
        }
      else
      {
        P_SPR_Approver_Director = 's';
        P_SPR_Approver_RVP =  's';  
        P_SPR_Approver_GVP =  's';
        P_SPR_Approver_EVP =  's';
       }     
     
   List<AggregateResult> OLI = [select count(id) olicnt from OpportunityLineItem 
                                where opportunityid = :SP.Opportunity__c and name like '%COTERM%' ];
    
   List<AggregateResult>  ATH = [select count(id) athcnt from  Attachment 
                                 where parentid = :ApexPages.currentPage().getParameters().get('id')];  
 
   Olicheck = (Integer)OLI[0].get('olicnt');
   Athcheck = (Integer)ATH[0].get('athcnt');  
     
 }
 public void pageAction(){
 
     if ( P_SPR_Approver_Director == NULL || P_SPR_Approver_RVP == NULL || P_SPR_Approver_GVP == NULL || P_SPR_Approver_EVP == NULL  )
     {
      ApexPages.addMessage(new ApexPages.Message(ApexPages.severity.info,'Your SPR approvers have not been set up, please contact the SFDC Administrator @ SFDC@fortinet.com'));  
     }
 
     else if( Olicheck > 0 && Athcheck ==0) // COTERM product exist and attached is missing this will fire
     {
      ApexPages.addMessage(new ApexPages.Message(ApexPages.severity.info,'An RTS Quote is required for the COTERM product.Please attach quote(s) and then resubmit your SPR for approval'));     
     }
     
     else if ( P_SPR_Approver_Director <> NULL && P_SPR_Approver_RVP <> NULL && P_SPR_Approver_GVP <> NULL && P_SPR_Approver_EVP <> NULL  )
     {
       Approval.ProcessSubmitRequest req = new Approval.ProcessSubmitRequest();
       req.setObjectId(PageID);
       Approval.ProcessResult result = Approval.process(req);
       ApexPages.addMessage(new ApexPages.Message(ApexPages.severity.info,'Sucessfully submitted for approval'));
       redirectpage();
      }
     
 }
 
 
 public PageReference redirectpage()
 {
   PageReference pageRef = new PageReference('/' + PageID);
   pageRef.setRedirect(true);
   return pageRef;
 }
 
 
}

Visual force Page.

<apex:page controller="check_spr_coterm" action="{!pageAction}">
<apex:pageMessages />
<apex:form >
        <apex:commandButton value="Ok" action="{!redirectpage}" oncomplete="abc();"/>
    </apex:form>
<script>
function abc() {
    window.location = 'https://www.google.com';
}
</script>
</apex:page>

<!--
<apex:page controller="check_spr_coterm">
<script>
window.alert('{!$CurrentPage.Parameters.Id}');
window.parent.opener.location.reload(true);
window.parent.close();
</script>
</apex:page>
-->

Wrote below Test Class which is still showing 0% code coverage Please suggest me how to add code coverage test class for above class 

@isTest(seealldata=true)
public class  test_check_spr_coterm
{
   static testMethod void test_check_spr_coterm(){
   
  Account Act = new Account( Name = 'Test Sudhir Ac',Website='www.sudhir.com',Industry='Legal',BillingStreet='894', BillingCity='sunnyvalley', BillingState='CA', 
                             BillingPostalCode='997',BillingCountry='USA');  

  insert Act; 
   
  Opportunity Opp = new Opportunity(Name = 'Test Class Sudhir',AccountId=Act.id,Closedate=system.today(),StageName='Omit from Forecast',Deal_Type__c='Refresh' );  

  insert Opp;  
   
   
   SPR__c SPR = new  SPR__c(Opportunity__c=opp.id,Partner_Account__c='0018000000pwEyq',Distributor__c='a0N8000000Aiif0',Reason_Needed__c='Budget Constraints',
                            SPR_Approver_Director__c = null,SPR_Approver_RVP__c=null,
                            SPR_Approver_GVP__c=null,SPR_Approver_EVP__c=null  ); 
   
   insert SPR;
     
   //String SPR1 = SPR[0].id;
  
  
 // if([select count() from ProcessInstance where targetobjectid=:SPR1.id] < 1)
     //   {       
            Approval.ProcessSubmitRequest req = new Approval.ProcessSubmitRequest();
            req.setComments('Approve.');
            req.setNextApproverIds(new Id[] {UserInfo.getUserId()});
            req.setObjectId(SPR.Id);

            //Submit the approval request
            Approval.ProcessResult result = Approval.process(req);

     //   } 
        
   }     

}

Please suggest me how to modify the test class to get code coverage.

Thanks
Sudhir