Test Class Passes in Apex Execution, but Code Coverage at 0%

Why when I try to deploy my class is it saying that the code coverage is 0%. I don't understand what I need to do for the class to pass? I set up a change set with the two classes below, and when i click validate > run specific tests > "TEST_OpOwnerConvertedServiceNotif" it says the code coverage is 0%.

I have clicked "Run Test" within the test class and it passes, what more do I need to do?

When I'm in the developer console in the class, it also says that code coverage is "None"

Below is my test class:

@istest private class TEST_OpOwnerConvertedServiceNotif 
{
    static testMethod void TEST_OpOwnerConvertedServiceNotif ()
    {
        Account acc = new Account(Name = 'Test Account');
        insert acc;

        ID pricebookId = Test.getStandardPricebookId();

        Product2 prd1 = new Product2(
            Name = 'Test Product Entry 1',
            Description = 'Test Product Entry 1',
            productCode = 'ABC', isActive = false,
            RecordTypeId = '0128E0000004m8b',
            R_D_Service_Owner__c = '005w0000004x3RiAAI',
            Convert_to_Service_Catalogue_Initiated__c = TRUE,
            Convert_to_Service_Catalogue_Emailed__c = FALSE
        );
        insert prd1;

        PricebookEntry pbe1 = new PricebookEntry(
            Product2ID=prd1.id, 
            Pricebook2ID = pricebookId,
            UnitPrice=0, 
            isActive=true
        );
        insert pbe1;

        Opportunity opp1 = new Opportunity(
            Name='Opp1', 
            StageName='Proposal Accepted', 
            CloseDate=Date.today(),
            Pricebook2Id = pbe1.Pricebook2Id, 
            AccountId = acc.id
        ); 
        insert opp1;

        OpportunityLineItem lineItem1 = new OpportunityLineItem(
            OpportunityID = opp1.id, 
            PriceBookEntryID = pbe1.id, 
            quantity=1, 
            totalprice=0
        );
        insert lineItem1;

        Test.startTest();

        Test.stopTest();
    }
}

Below is the class related to the test:

global class OpOwnerConvertedServiceNotif Implements Schedulable
//If an R&D Service or project is converted to a full service record, when  it is already attached to an opportunity, a notification will be sent to the opportunity owner, informing them of the change
{
    global void execute (SchedulableContext sc)
    {
        sendConvertedEmailToOppOwner();
    }
    public void sendConvertedEmailToOppOwner()
    {
        List<Opportunity> listOpportunity = new List <Opportunity>();
        listOpportunity = [
            SELECT Id, OwnerId,Name,Owner.FirstName,
                (SELECT Id, Product2.Name FROM OpportunityLineItems
                    WHERE Product2.Convert_to_Service_Catalogue_Emailed__c = FALSE
                        AND Product2.Convert_to_Service_Catalogue_Initiated__c = TRUE)
            FROM Opportunity
            WHERE StageName != 'Closed Won - Signed Contract' AND StageName != 'Closed Lost' AND Id in
                (SELECT OpportunityId 
                FROM OpportunityLineItem
                WHERE Product2.Convert_to_Service_Catalogue_Emailed__c = FALSE
                    AND Product2.Convert_to_Service_Catalogue_Initiated__c = TRUE)
        ];

        for(Opportunity opp :listOpportunity)
        {
            List<Messaging.SingleEmailMessage> emails = new List<Messaging.SingleEmailMessage>();
            {

                Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage();

                email.setTargetObjectId(opp.OwnerId);
                email.setReplyTo('[email protected]');
                email.setSenderDisplayName('Salesforce Support');
                for(opportunitylineitem oppLineItem:opp.opportunitylineitems)
                    email.setSubject('An R&D service or project attached to an opportunity owned by you has been progressed to a live service');
                    String body ='Hi ' + opp.Owner.FirstName + ',';
                    body += '<br><br>Salesforce recognises you as the owner of the following opportunity: ' + opp.Name;
                for(opportunitylineitem oppLineItem:opp.opportunitylineitems)
                    body += '<br><br>Attached to this opportunity is an R&D service or project:'+oppLineItem.Product2.Name + '. This service or project has been progressed to a live service, so is no longer available.';
                    body += '<br><br>Please use the link below to update the opportunity';
                    body += '<br><br>test.salesforce.com/'+opp.id;
                    email.setHtmlBody(body);
                    email.setSaveAsActivity(false);
                    emails.add(email);
             }
            Messaging.sendEmail(emails);

            update listOpportunity;
        }
        Map<Id,Product2> products = new Map<Id, Product2>();
        for(Opportunity opp: listOpportunity){
            for(OpportunityLineItem oppLineItem: opp.opportunitylineitems){
                products.put(oppLineItem.Product2Id, new Product2(Id=oppLineItem.Product2Id, Convert_To_Service_Catalogue_Emailed__c = TRUE));
            }
         }
         update products.values();       
     }
}