Below is my code... I am bit confused how to write test class for this?
trigger TestAttachmentcontentDoc on ContentDocumentLink (before insert)
{
Schema.DescribeSObjectResult inv = Supporting_Documentation__c.sObjectType.getDescribe();
String prefix = inv.getKeyPrefix();
Map<Id, Id> doclinkedId = new Map<Id, Id>();
String keyPrefix;
for(ContentDocumentLink contentdoc : Trigger.New)
{
keyPrefix = String.valueOf(contentdoc.LinkedEntityId).left(3);
if(prefix==keyPrefix)
{
doclinkedId.put(contentdoc.ContentDocumentId, contentdoc.LinkedEntityId);
System.debug('**doclinkedId***'+doclinkedId);
}
}
Supporting_Documentation__c SD=new Supporting_Documentation__c();
String keyvalue;
if(doclinkedId.size()>0)
{
SD=[Select Status__c from Supporting_Documentation__c where ID IN : doclinkedId.values()];
keyvalue =String.valueOf(SD.Id).left(3);
}
integer i;
for(ContentDocumentLink tgr : Trigger.New)
{
if( keyvalue ==prefix && SD.Status__c=='Closed')
{
tgr.addError('Cannot modify attachment from an Closed Inquiry');
}
}
}
@isTest
public class TestAttachmentcontentDoc{
@isTest
static void TestAttachment{
Test.startTest();
Supporting_Documentation__c SD=new Supporting_Documentation__c();
SD.status = 'Closed';
Database.insert(SD);
Test.stop Test();
}
}
