npsp-tdtm-beforeInsert.cls

global class AFFL_AffiliationsStartDate_TDTM extends npsp.TDTM_Runnable {

    global override npsp.TDTM_Runnable.DmlWrapper run(List<SObject> newlist,
                                             List<SObject> oldlist,
                                             npsp.TDTM_Runnable.Action triggerAction,
                                             Schema.DescribeSObjectResult objResult) {

        npsp.TDTM_Runnable.dmlWrapper dmlWrapper = new npsp.TDTM_Runnable.DmlWrapper();
		List<npe5__Affiliation__c> newAffils = (List<npe5__Affiliation__c>) newlist;
		List<npe5__Affiliation__c> oldAffils = (List<npe5__Affiliation__c>) oldlist; 

		if (triggerAction == npsp.TDTM_Runnable.Action.BeforeInsert) {
            for(npe5__Affiliation__c affil : newAffils) {
                if (affil.npe5__StartDate__c == null) {
                    affil.npe5__StartDate__c = Date.today();
                }
            }
        }
                                            
		return dmlWrapper;
	}
    
}
      
      
      
@isTest
private class AFFL_AffiliationsStartDate_TEST {

    @isTest
    static void testTrigger() {
        // Retrieve default NPSP Trigger Handlers
		List<npsp__Trigger_Handler__c> triggerHandlers = npsp.TDTM_Config_API.getCachedRecords();
        
        // Add our Trigger Handler to cached Trigger Handlers
		npsp__Trigger_Handler__c th = new npsp__Trigger_Handler__c();
		th.Name = 'AffiliationsStartDate';
		th.npsp__Class__c = 'AFFL_AffiliationsStartDate_TDTM';
		th.npsp__Object__c = 'npe5__Affiliation__c';
		th.npsp__Trigger_Action__c = 'BeforeInsert';
		th.npsp__Active__c = true;
		th.npsp__Load_Order__c = 1;
		th.npsp__Asynchronous__c = false;

		triggerHandlers.add(th);
        
        Account acc1 = new Account(
        	Name = 'My Test Account 1'
        );
        
        Database.SaveResult acc1r = Database.insert(acc1, false);
        System.assertEquals(true, acc1r.isSuccess());
        if (!acc1r.isSuccess()) {
        	System.debug(acc1r.getErrors());
        }
        
        Contact con1 = new Contact(
        	LastName = 'MyTestContact'
        );
        
        Database.SaveResult con1r = Database.insert(con1, false);
        System.assertEquals(true, con1r.isSuccess());
        if (!con1r.isSuccess()) {
            System.debug(con1r.getErrors());
        }
        
        Test.startTest();
        npe5__Affiliation__c aff1 = new npe5__Affiliation__c(
        	npe5__Organization__c = acc1r.getId(),
            npe5__Contact__c = con1r.getId(),
            npe5__Status__c = 'Current'
        );
        
        Database.SaveResult aff1r = Database.insert(aff1, false);
        System.assertEquals(true, aff1r.isSuccess());
        if (!aff1r.isSuccess()) {
            System.debug(aff1r.getErrors());
        }
        Test.stopTest();
        
        npe5__Affiliation__c aff1c = [SELECT Id, npe5__StartDate__c FROM npe5__Affiliation__c WHERE Id = :aff1r.getId() LIMIT 1];
        System.assertNotEquals(null, aff1c);
        System.assertEquals(Date.today(), aff1c.npe5__StartDate__c);
    }
}