hey guys,
I was suppose to upload an application that i've wrote today and i have a really big problem with code coverage and testing.

i've wrote this trigger that does something with my custom objects.
trigger Check_Sold_Out on Class_Registration__c (after delete) {
Class_Registration__c[] Current = Trigger.old;
Class__c current_class = [select Id,Sold_Out__c from Class__c where Id=:Current[0].Class__c for update];
Class__C[] Classes= [select Name,Seat_Capacity__c, Location__c,Class_Date__c from Class__c where Id=:Current[0].Class__c ];
User[] Users= [select Email from User where Id=:Current[0].OwnerId ];
Integer Reg_Num = [select Count() from Class_Registration__c where Class__c=:Current[0].Class__c and Registration_Status__c <> 'Cancelled' and Registration_Status__c <> 'Waiting List' ];
if (Reg_Num < Classes[0].Seat_Capacity__c){ current_class.sold_out__c = false; update current_class;}
}

i wrote this apex class for testing:

public class Check_Sold_Out {

 static testMethod void myTest()
 {
  Class_Registration__c Current = [select Id from class_registration__c where Registration_Notes__c='1'];
  delete Current;
  }

}

now the thing is that i'm not sure what i should do with it. i run it and it said that i've got 100% code coverage,

but when i'm trying to upload the package it says that i've got no test method defined for this trigger.

i must be missing something here. i am really deseprate for any kind of help as i'm late on the rollout schedule.

any kind of help would be really appricated!!! 

I also be glad to pay someone for helping me with this -i need help ASAP.

Thanks

Eyal