hello

I am new in salesforce and I want to write a test class for a visual force page. I have created a test class but i have only 33% coverage.

I have a select option and i don't know how cover that part of code.

any help will be appreciated.

This is my page

<apex:page standardController="Aspirante__c" extensions="MultiSelectController">
     <apex:sectionHeader title="Estatus" />
     <apex:form >
     <apex:pageBlock title="Aspirante" mode="edit"> 
         <apex:outputText value="{!Aspirante__c.Estatus__c}" rendered="false"/>       
 
          <apex:pageBlockButtons location="both">
               <apex:commandButton value="Guardar" action="{!save}" />
               <apex:commandButton value="Cancelar" action="{!cancel}" />
          </apex:pageBlockButtons>
          <apex:pageMessages />       
           <apex:pageBlockSection title="Modificación de Estatus" columns="1">
                 <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Estatus" for="cbxlevel1"/>
                    <apex:outputPanel styleClass="requiredInput" layout="block">
                    <apex:outputPanel styleClass="requiredBlock" layout="block"/>
                    <apex:selectList value="{!selectedLevel1}" id="cbxlevel1" size="1" required="false">
                        <apex:selectOptions value="{!level1items}"/>
                        <apex:actionSupport event="onchange" rerender="cbxlevel2"/>
                    </apex:selectList>
                    </apex:outputPanel>
                </apex:pageBlockSectionItem>
                 
          </apex:pageBlockSection>
 
     </apex:pageBlock>
     </apex:form>   
 
</apex:page>

VF Page

public with sharing class MultiSelectController {
 
    // reference for the standard controller
    private ApexPages.StandardController controller {get; set;}
 
    // the record that is being edited
    private Aspirante__c opp;
 
    // the values of the selected items
    public string selectedLevel1 {get; set;} 
 
    public List<selectOption> level1Items {
        
        get {List<selectOption> options = new List<selectOption>();
              
               if (opp.Estatus__c == Null)
               {               
                options.add(new SelectOption('New','New'));
                options.add(new SelectOption('Waiting','Waiting'));
                options.add(new SelectOption('Interview','Interview'));
                
               } 
               
               if (opp.Estatus__c=='New')
               {                
                options.add(new SelectOption('Waiting','Waiting'));
                options.add(new SelectOption('Interview','Interview'));
                 options.add(new SelectOption('rejected','rejected'));
               } 
              
               
               if (opp.Estatus__c=='Waiting')
               {                
                options.add(new SelectOption('Interview','Interview'));
                //options.add(new SelectOption('Waiting','Waiting'));
                options.add(new SelectOption('rejected','rejected'));
               } 
              
                            
              
        return options; 
        }
        set;
    }
 
 
    public MultiSelectController(ApexPages.StandardController controller) {
 
        //initialize the stanrdard controller
        this.controller = controller;
        // load the record
        this.opp = (Aspirante__c)controller.getRecord();
 
        // preselect the current values for the record
        selectedLevel1 = opp.Estatus__c;
     
 
    }          
 
    public PageReference save() {
 
        // set the selected values to the record before saving
        String respaldOpp;
        respaldOpp = opp.Estatus__c;
        opp.Estatus__c =selectedLevel1;
       
        try {
            update(opp);
        } catch(System.DMLException e) {
                       
            ApexPages.addMessages(e);
            return null;
        }
      
         PageReference opp= new ApexPages.StandardController(opp).view();
      opp.setRedirect(true);
      return opp;
         
    }        
 
}

Test Class

@isTest
public class MultiSelectControllerTest{
public static testMethod void MultiSelectControllerTest() {
       
    PageReference pageRef = Page.selectEstatus;
    Test.setCurrentPage(pageRef);     
                  
    Aspirante__c aspirante = new Aspirante__c(Name='Tests', CorreoElectronico__c='tst@mail.com', Estatus__c='New');
    insert aspirante;
        
    ApexPages.standardController controller = new ApexPages.standardController(aspirante);
             
    MultiSelectController pag = new MultiSelectController(controller); 
              
    pag.save();
    
}
}