How to use Test.setCreatedDate method with a list

Question

I'm getting this error:

Method does not exist or incorrect signature: void setCreatedDate(List<Object__c>, Datetime)

With this (excerpt of) test class below

List<Object__c> testRecords = new List<Object__c>();

for (Integer i = 0; i < 5000; i++) {
    testRecords.add(new Object__c(Name = 'Test Record ' + i));
    DateTime TestCreatedDate = DateTime.now().addDays(-15);
    Test.setCreatedDate(testRecords, TestCreatedDate);
}

insert testRecords;

No problem doing it with a single record Id, but no idea how to do it with a list. This is to test a class that deletes records more than 14 days old (which is working). The test class saves if I remove the Test.setCreatedDate() method, but then the test doesn't pass.

I've omitted the entire class for the sake of not having to redact a bunch of org specific information, but if it's a necessity then I'll begrudgingly amend it for public consumption...

Answer 1

The documentation says there's only setCreatedDate(Id recordId, Datetime createdDatetime), so you've gotta do this one record at a time

• Create your test records
• Insert them
• Iterate over your test records and call Test.setCreatedDate()

List<Object__c> testRecords = new List<Object__c>();

// Since this is a constant, it should be declared/initialized outside of all loops
DateTime testCreatedDate = DateTime.now().addDays(-15);

// Create records
for (Integer i = 0; i < 5000; i++) {
    testRecords.add(new Object__c(Name = 'Test Record ' + i));
}

insert testRecords;

// Set the date
for(Object__c testObj :testRecords){
    Test.setCreatedDate(testObj.Id, testCreatedDate);
}