User currentUser = [SELECT contactId  FROM User WHERE Id = :UserInfo.getUserId()];
        System.debug('Current user' + currentUser);
         //Fetch the current contact object
       if(String.isNotBlank(currentUser.ContactId)) {

            contact  = [
                SELECT  AccountId, firstName, lastName, MiddleName,  Nickname__c, Suffix, MailingStreet, MailingCity,
                MailingStateCode, Certify_Complete_and_Correct__c,  Certify_Download_Instructions_to_PreCan__c
                FROM Contact
                WHERE Id = :currentUser.ContactId
                LIMIT 1
            ];

            System.debug('contact information: ' + contact );

             //Fetch the current application object
           application = [

                        SELECT Id, Contact__c, Attend_College_after_High_School__c
                        FROM Application__c
                        WHERE Contact__c =: currentUser.contactId
                        LIMIT 1];


              }

}

And the following submit method in the apex class

public pagereference submit() {

        if (
             contact.Certify_Complete_and_Correct__c == false ||
             contact.Certify_Download_Instructions_to_PreCan__c == false

           )

              {
                 ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR, 'Please make sure all required fields are populated.');
                 ApexPages.addMessage(myMsg);
                 return null;
              }



        // ALO Code


         if(application.Attend_College_after_High_School__c == 'No')

            {

                acc = [

                        SELECT Id, OwnerId
                        FROM Account
                        WHERE Id =: contact.AccountId
                        ];


                contact.ALO__c = acc.OwnerId;


              }



          else if(application.Attend_College_after_High_School__c == 'Yes')

              {



                  ziptoLOD = [

                        SELECT Id, Name, LOD__c
                        FROM Zip_3_to_LOD__c
                        WHERE Name =: contact.Extract_Zipcode__c

                        ];



                  contact.ALO__c = ziptoLOD.LOD__c;


             }

static testMethod void submit_Test() {

    Profile AdminProfile = [select id from profile where name='System Administrator'];
    UserRole AdminRole = [SELECT id from UserRole where name = 'Admin'];


    User currentuser = new User();
      currentuser.firstname      ='James';
      currentuser.lastname      ='Dobb';
      currentuser.email         ='[email protected]';
      currentuser.username      ='[email protected]';
      currentuser.alias        ='jdobb';
      currentuser.TimeZoneSidKey  ='GMT';
      currentuser.LocaleSidKey    ='en_US';
      currentuser.emailencodingkey  ='UTF-8';
      currentuser.languagelocalekey  ='en_US';
      currentuser.ProfileId     = AdminProfile.Id;
      currentuser.userroleid     = AdminRole.Id;
      insert currentuser;


     Account acc= new Account();
     acc.OwnerId='005r0000001i9xA';
     acc.Name='Atlanta Area Tech School';
     acc.RecordTypeId='012r00000005DsA';


     Zip_3_to_LOD__c zip= new Zip_3_to_LOD__c();
     zip.Name = '480';
     zip.LOD__c = '005t0000001LDpi';

    Contact contact   = new Contact();
    contact.firstName = 'Alex';
    contact.lastName  = 'Cauller';
    contact.email     = '[email protected]';
    contact.AccountId = acc.Id;



    system.runas(currentuser){
      insert acc;
      insert contact;
      insert zip;


    }



    Application__c app= new Application__c();
    app.Contact__c = contact.Id;
    app.Attend_College_after_High_School__c= 'No';


    system.runas(currentuser){

      insert app;
    }

    Profile pr = [select id from profile where name='......'];
    User u = new User();
      u.firstname      ='James';
      u.lastname      ='Dobb';
      u.email         ='[email protected]';
      u.username      ='[email protected]';
      u.alias        ='jdobb';
      u.TimeZoneSidKey  ='GMT';
      u.LocaleSidKey    ='en_US';
      u.emailencodingkey  ='UTF-8';
      u.languagelocalekey  ='en_US';
      u.ProfileId     = pr.Id;
      u.contactId      =contact.id;
    insert u;

    system.runAs(u){
      System.Test.startTest();
      Page4Controller controllerClass = new Page4Controller();
      controllerClass.contact.Certify_Complete_and_Correct__c = false;
      controllerClass.contact.Certify_Download_Instructions_to_PreCan__c = false;
      controllerClass.submit();
      System.AssertEquals(controllerClass.contact.ALO__c,acc.OwnerId);
      controllerClass.application.Attend_College_after_High_School__c = 'Yes';
      controllerClass.submit();
      System.AssertEquals(controllerClass.contact.ALO__c,zip.LOD__c);
      controllerClass.previouspage();
      System.Test.stopTest();


    }


    When I run the test case, the test case fails and generates the following error on both the assert statements

System.AssertException: Assertion Failed: Expected: null, Actual: 005r0000001i9xAAAQ

  }