Hello, thnak you very much for the help in advance if you are able to help with the following test class.  I am new to Apex and have created a trigger which I am posting below which is working fine.  The test class I created is covering roughly 54 percent and I need it higher of course.  I am posting the test class below as well with the lines marked that are not being covered.  If you can help me get the code coverage up I would greatly appreciate it.  Thank you again!

Trigger Code - 

List<String> CaseZipList = new List<String>();
    
    For(Case Cases : Trigger.new) {
        IF(string.isBlank(Cases.New_Job_Number__c) && Cases.AVISPL_Service_Maintenance_Contract__c != null && !string.isBlank(Cases.New_Company_Database__c) && !string.isBlank(Cases.Address_Zip_Code__c)) {
            String zipCode = cases.Address_Zip_Code__c;
            //We need to sanitize the incoming zip code. Specifically, the Zip_Code__c object stores 5-digit zip codes only, so a longer zip code (e.g. 17801-7952) needs to be trimmed to match (e.g. 17801).
            zipCode = zipCode.left(5);
          trigger AVI_SPL_TM_Zip_To_Warehouse on Case (after insert, before update) {

      
            CaseZipList.add(zipCode);
        }
    }
    
    //If there is at least one Case which meets our criteria...
    if(CaseZipList.size() > 0) {
        //...then query the appropriate objects and perform the rest of the trigger's functionality.
        
        ID ExternalZipCodeRT = Schema.sObjectType.Zip_Code__c.getRecordTypeInfosByName().get('External Zip Code').getRecordTypeId();    
        List<Zip_Code__c> zipList = [SELECT ID, Name, Location__Longitude__s,Location__Latitude__s, Warehouse_Code_Selection__c, Company_Database__c 
                                        FROM Zip_Code__c 
                                        WHERE Name = : CaseZipList 
                                        AND RecordTypeId = :ExternalZipCodeRT];
    
        ID InternalZipCodeRT = Schema.sObjectType.Zip_Code__c.getRecordTypeInfosByName().get('Internal Sales Office').getRecordTypeId();    
        List<Zip_Code__c> SalesZipList = [SELECT ID, Name, Location__Longitude__s,Location__Latitude__s, Warehouse_Code_Selection__c, Company_Database__c 
                                            FROM Zip_Code__c 
                                            WHERE RecordTypeId = :InternalZipCodeRT];
                                    
        List<Location> SalesOfficeLocations = new List<Location>();
        Map<Location,String> locationToWarehouseCode = new Map<Location,String>();
        Map<String,String> warehouseCodeToCompanyDatabase = new Map<String, String>();
        
        For(Zip_Code__c SZ : SalesZipList) {
NOT COVERED            Location Loc = Location.newInstance(SZ.Location__Latitude__s,SZ.Location__Longitude__s);
 NOT COVERED           SalesOfficeLocations.add(Loc);
 NOT COVERED          locationToWarehouseCode.put(Loc,SZ.Warehouse_Code_Selection__c);
 NOT COVERED           warehouseCodeToCompanyDatabase.put(SZ.Warehouse_Code_Selection__c, SZ.Company_Database__c);
        }
        
        //Loop through each inserted or updated Case.
        for(Case Cases : Trigger.new) {
            //For each Case that meets our criteria...
            IF(string.isBlank(Cases.New_Job_Number__c) && Cases.AVISPL_Service_Maintenance_Contract__c != null && !string.isBlank(Cases.New_Company_Database__c) && !string.isBlank(Cases.Address_Zip_Code__c)) {
                //...then loop through each of the External Zip Codes we queried.
                For(Zip_Code__c CL : ZipList) {
NOT COVERED                    String zipCode = Cases.Address_Zip_Code__c;
                    //We need to sanitize the incoming zip code. Specifically, the Zip_Code__c object stores 5-digit zip codes only, so a longer zip code (e.g. 17801-7952) needs to be trimmed to match (e.g. 17801).
NOT COVERED                    zipCode = zipCode.left(5);
                
                    //When we find the matching External Zip Code...
NOT COVERED                    if(CL.name == zipCode) {
                        //...then grab its location so we can compare against the Sales Office Locations.
  NOT COVERED                      Location Loc = Location.newInstance(CL.Location__Latitude__s,CL.Location__Longitude__s);
  NOT COVERED                      Double minDistance = null;
   NOT COVERED                     String closestWarehouseCode = null;
            
                        //Loop through all the Sales Office Locations.
NOT COVERED                        For(Location SOL : SalesOfficeLocations){
                            //If the Sales Office Location is for the same Company Database value as the Case we're currently examining...
 NOT COVERED                           if(warehouseCodeToCompanyDatabase.get(locationToWarehouseCode.get(SOL)) == cases.New_Company_Database__c) {
                                //...then determine the distance between them.
  NOT COVERED                              Double distance = Location.getDistance(Loc,SOL,'mi');
                                
                                //If this is the closest distance we've calculated so far...
   NOT COVERED                             If(minDistance == null || distance < minDistance){
                                    //...then save that distance as our new closest and assign the Warehouse Code as the closest Warehouse.
   NOT COVERED                                 minDistance = distance;
  NOT COVERED                                  closestWarehouseCode = locationToWarehouseCode.get(SOL);
                                }//end of If(minDistance == null || distance < minDistance)
                            }//end of if(warehouseCodeToCompanyDatabase.get(locationToWarehouseCode.get(SOL)) == cases.New_Company_Database__c)
                        }//end of For(Location SOL : SalesOfficeLocations)
                        
                        //Having done all of those comparisons, we can now assign the closest Warehouse Code to the Case.
  NOT COVERED                      Cases.AVI_SPL_Rep_Whse_Office_Code_2011__c = closestWarehouseCode;
                    }//end of if(CL.name == zipCode)
                }//end of For(Zip_Code__c CL : ZipList)
            }//end of IF(string.isBlank(Cases.New_Job_Number__c) && Cases.AVISPL_Service_Maintenance_Contract__c != null && !string.isBlank(Cases.New_Company_Database__c) && !string.isBlank(Cases.Address_Zip_Code__c))
        }//end of for(Case Cases : Trigger.new)
    }//end of if(CaseZipList.size() > 0)
    
    //call of existing trigger "SalesExtract" from Case Object.  Need this code to fire after Zip actions. 
     salespersonextraction.salesextract(Trigger.new);
}


Test Class - 

@isTest
public class AVI_SPL_TM_Zip_To_Warehouse_Test{

    public static Case testCase;
    public static AVISPL_Service_Maintenance_Contract__c testSmc;
    public static Account testAcc;
    
    @testSetup
    private static void myTestData(){
            Account a = new Account();
        a.Name = 'Test Warehouse Account';
        a.CurrencyIsoCode = 'USD';
        a.RecordTypeId = '01240000000DhQMAA0';
        a.Named_Account__c = 'No';
        a.Exclusive_Account__c = 'No';
        a.Enterprise_Account__c = 'No';
       insert a;
       AVI_SPL_TM_Zip_To_Warehouse_Test.testAcc = a;
       System.debug('The new Account ID is ' + a.Id);
       
        
       Contact con = new Contact();
        con.FirstName = 'Test Shawn';
        con.LastName = 'Contact';
        con.Email = 'djsuite015@gmail.com';
        con.CurrencyIsoCode = 'USD';
        con.AccountId ='0014000000iLrfy';
        con.RecordTypeId ='012330000001HMuAAM';
       insert con;
       System.debug('The new Contact ID is ' + con.Id);
       
       
       AVISPL_Service_Level_Term__c sla = new AVISPL_Service_Level_Term__c();
        sla.Name = 'Test';
        sla.Active__c = True;
       insert sla;
       system.debug('The new SLA Term ID is ' + sla.Id);
       
        
       AVISPL_Service_Maintenance_Contract__c s = new AVISPL_Service_Maintenance_Contract__c();
        s.Name = 'Warehouse Test SMC';
        s.Active_Contract__c = True;
        s.CurrencyIsoCode = 'USD';
        s.Salesperson__c = con.Id;
        s.BKR_Customer__c = '12345';
        s.Company_Database__c = 'AVI';
        s.Contract_Start_Date__c = Date.newInstance(2016, 11, 1);
        s.Contract_End_Date__c = Date.newInstance(2017, 11, 1);
        s.SLA_Terms__c = sla.Id;
        s.Sale_Type__c = 'Service Only - Net New';
       // s.Preventative_Maintenance_Visits__c = 'One';
        s.RecordTypeId = '012330000001HMpAAM';
       insert s;
       AVI_SPL_TM_Zip_To_Warehouse_Test.testSmc = s;
       system.debug('The new SMC Id is ' + s.Id);
              
       Case c = new Case();
        c.RecordTypeId = '01240000000INaqAAG';
        c.Status = 'New / Open';
        c.Priority = 'P4';
        c.Department__c = 'Help Desk';
        c.CurrencyIsoCode = 'USD';
        c.AccountId = a.Id;
        c.AVISPL_Service_Maintenance_Contract__c = s.Id;
        c.Sub_Account_Room_Information__c = 'TBD';
        c.Type = 'Contract';
        c.Origin = 'Phone';
        c.Subject = 'Test';
        c.Description = 'Test';
        c.Svc_Category_Client_Reported_Issue__c = 'A/V';
        c.New_Job_Number__c = '';
        c.Address_Zip_Code__c = '17801-7952';
        c.New_Company_Database__c = s.Company_Database__c;
       insert c;
       AVI_SPL_TM_Zip_To_Warehouse_Test.testCase = c;
       system.debug('The testCase ID is ' + testCase.Id);
       system.debug('The new Case Id is ' + c.Id);        
    }
    
    private static testMethod void tm1(){
     AVI_SPL_TM_Zip_To_Warehouse_Test.myTestData();
     AVI_SPL_TM_Zip_To_Warehouse_Test.testCase = [SELECT Id, New_Company_Database__c, Address_Zip_Code__c, New_Job_Number__c,
                                                 AVI_SPL_Rep_Whse_Office_Code_2011__c FROM Case 
                                                 WHERE Id = : AVI_SPL_TM_Zip_To_Warehouse_Test.testCase.Id];
        
        If(AVI_SPL_TM_Zip_To_Warehouse_Test.testCase.AVI_SPL_Rep_Whse_Office_Code_2011__c != null){
            system.assert(AVI_SPL_TM_Zip_To_Warehouse_Test.testCase.AVI_SPL_Rep_Whse_Office_Code_2011__c == 'PA_Philadelphia_240S_240600_SPL');
            system.assert(AVI_SPL_TM_Zip_To_Warehouse_Test.testCase.Address_Zip_Code__c == '17801');
            system.assert(AVI_SPL_TM_Zip_To_Warehouse_Test.testCase.New_Company_Database__c == 'SPL');
            system.assert(AVI_SPL_TM_Zip_To_Warehouse_Test.testCase.Address_Zip_Code__c != '17801-7952');
        }
        
    }
    
}