on line 12 @isTest public class attachPDFTestClass { static testMethod void testAttachments() { Account testAccount = new Account(); testAccount.Name = 'REALIANCE'; insert testAccount; system.debug(testAccount.Id); Facturatie__c currentRecord = new Facturatie__c(); currentRecord.Accountname__r.Name = testAccount.Name; system.debug('testAccount debug'+ testAccount.Name); insert currentRecord;

Still get same error on line 12: @isTest public class attachPDFTestClass { static testMethod void testAttachments() { Account testAccount = new Account(); testAccount.Name = 'REALIANCE'; insert testAccount; system.debug(testAccount.Id); Facturatie__c currentRecord = new Facturatie__c(); currentRecord.Accountname__r.Name = testAccount.Name; system.debug('testAccount debug'+ testAccount.Name); insert currentRecord;

The system.debug(testAccount.Name); is ok, so this part works fine. The error comes from the testFactuur i think as system.debug('line 3'); system.debug(testAccount.Name); both work except for system.debug('line 4');

In the testclass line 5 Facturatie__c a = new Facturatie....