Help with batchable class test

I have a batch class that I am gettin​g very litte test coverage for, can someone please assist. Lines 9 to 18 are not being covered.

global class ragStatusUpdate implements Database.Batchable<sObject>{
   global Database.QueryLocator start(Database.BatchableContext BC)
  {   string query = 'select id, Update_Rag_Status_Time__c from Shipment_Order__c  where Shipping_Status__c != \'POD Received\' AND Shipping_Status__c != \'On Hold\'AND Shipping_Status__c != \'Cancelled\'AND Shipping_Status__c != \'Shipment Pending\' AND Shipping_Status__c != \'Cancelled - With fees/costs\' AND Shipping_Status__c != \'Cancelled\'AND Shipping_Status__c != \'Cancelled - No fees/costs\' AND Shipping_Status__c != \'Customs Clearance Docs Received\' ';
      return Database.getQueryLocator(query);
   }
   global void execute(Database.BatchableContext BC, List<Shipment_Order__c>scope )
   {
list<Shipment_Order__c> SO = new list<Shipment_Order__c>();
        for(Shipment_Order__c s : scope)
           {
            s.Update_Rag_Status_Time__c  = TRUE;
             SO.add(s);
            }      
          update SO;
     }
   global void finish(Database.BatchableContext BC){
   }
}

@isTest
private class RagStatusTest {
static testMethod void testMethod1() {
        Account testClient = new account(Name='TestingClient',Client_Status__c = 'Prospect',Estimated_Vat__c = 123,CSE_IOR__c='0050Y000001LTZO');
        insert testClient;
        Contact testcontact = new Contact(LastName='Maseli',AccountId=testClient.Id);
        insert testcontact;
        country_price_approval__c cpa = new country_price_approval__c( name ='Serbia', Billing_term__c = 'DAP/CIF - IOR pays',  Airwaybill_Instructions__c = 'User IOR Address');
        insert cpa;
        IOR_Price_List__c testIOR = new IOR_Price_List__c();
        testIOR.Client_Name__c = testClient.Id;
        testIOR.Name = 'Serbia';
        testIOR.IOR_Fee__c = 1;
        insert testIOR;
        Shipment_Order__c shipmentOrder = new Shipment_Order__c();
        shipmentOrder.Account__c = testClient.Id;
        shipmentOrder.IOR_Price_List__c = testIOR.Id;
        shipmentOrder.Client_Contact_for_this_Shipment__c = testcontact.Id;
        shipmentOrder.Shipment_Value_USD__c = 123;
        shipmentOrder.Who_arranges_International_courier__c ='Client'; 
        shipmentOrder.Tax_Treatment__c ='DAP/CIF - IOR pays';
        shipmentOrder.Ship_to_Country__c = cpa.Id;
        shipmentOrder.Update_Rag_Status_Time__c = TRUE;
        insert shipmentOrder;
        Test.startTest();
        ragStatusUpdate batch = new ragStatusUpdate(); 
        database.executebatch(batch);
          Test.stopTest();
      }
    }