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prati@salesforce Writing Test class for a trigger using attachments
Hi
I am trying to write a test class for a trigger. The trigger is on attachement object , basically the trigger has a buch of .addError statements based on some fields of parent object of attachement which is to prevent user from updating, deleting or inserting attachements to that object based on a piclist field of that object. But i am strugling here with the test class, Only 65% coverage so far.
How should I create test data for attachment for testing purpose and I need to test for all the differnt scenarios, insert, update and delete.
Please help mw eith some examples, I can post my trigger if required.
Thank you
I am trying to write a test class for a trigger. The trigger is on attachement object , basically the trigger has a buch of .addError statements based on some fields of parent object of attachement which is to prevent user from updating, deleting or inserting attachements to that object based on a piclist field of that object. But i am strugling here with the test class, Only 65% coverage so far.
How should I create test data for attachment for testing purpose and I need to test for all the differnt scenarios, insert, update and delete.
Please help mw eith some examples, I can post my trigger if required.
Thank you
static testMethod void testUpdateAttachment() { Test.startTest(); //Custom object record insert Blob b = Blob.valueOf('test data'); Attachment attachment = new Attachment(); //objectid is id of the record in which you want to create attachment, it could be a test account etc attachment.ParentId = objectId; attachment.Name = 'Test Attachment for Parent'; attachment.Body = b; insert(attachment); Attachment at = [Select Id, Body, Name, ParentId from Attachment where ParentId =: objectId]; Blob b2 = Blob.valueOf('test 2 data'); at.body = b2; update b2; Test.stopTest(); }Hope this helpsAll Answers
In order to create an attachment test data please use the below code. If you are facing some other difficulties please provide specific snippets where you are facing issues.
Code to create attachment data in test class
Blob b = Blob.valueOf('Test Data'); Attachment attachment = new Attachment(); //objectid is id of the record in which you want to create attachment, it could be a test account etc attachment.ParentId = objectId; attachment.Name = 'Test Attachment for Parent'; attachment.Body = b; insert(attachment);trigger PreventDeleteRoundAttachments on Attachment (before delete, before update, before insert)
{
Schema.DescribeSObjectResult r = Round__c.sObjectType.getDescribe();
String keyPrefix = r.getKeyPrefix();
Schema.DescribeSObjectResult inv = Inventory_Exception__c.sObjectType.getDescribe();
String invKeyPrefix = inv.getKeyPrefix();
if(trigger.isDelete)
{
for (Attachment a: trigger.old)
if (keyPrefix == String.ValueOf(a.ParentId).left(3) &&
[SELECT Approval_Status__c FROM Round__c where Id =: a.ParentId].Approval_Status__c == 'Approved')
{
a.adderror('This attachment could not be deleted because the Round is complete and approved.');
}
}
if(trigger.isInsert)
{
for (Attachment a: trigger.new)
if (keyPrefix == String.ValueOf(a.ParentId).left(3) &&
[SELECT Approval_Status__c FROM Round__c where Id =: a.ParentId].Approval_Status__c == 'Approved')
{
a.adderror('This attachment could not be added because the Round is complete and approved.');
}
}
if(trigger.isUpdate)
{
for (Attachment a: trigger.new)
if (keyPrefix == String.ValueOf(a.ParentId).left(3) &&
[SELECT Approval_Status__c FROM Round__c where Id =: a.ParentId].Approval_Status__c == 'Approved')
{
a.adderror('This attachment could not be modified because the Round is complete and approved.');
}
}
} SO for one case I need to insert attachment first and then test for deleting it , and then I need to test for insert and update.
Thank you
The same logic will work, take the following steps
- Create 3 test methods
- testInsertAttachment
- testDeleteAttachment
- testUpdateAttachment
- In all these methods create attachment record
- In first method insert the dummy attachment record
- In second method first insert the attachment then delete it
- In third method first insert the attachment the update the content.
This should get you the required coverage. If still you are not getting the required coverage please share your test class and I can try helping with increasing the coverage.static testMethod void testUpdateAttachment() { Test.startTest(); //Custom object record insert Blob b = Blob.valueOf('test data'); Attachment attachment = new Attachment(); //objectid is id of the record in which you want to create attachment, it could be a test account etc attachment.ParentId = objectId; attachment.Name = 'Test Attachment for Parent'; attachment.Body = b; insert(attachment); Attachment at = [Select Id, Body, Name, ParentId from Attachment where ParentId =: objectId]; Blob b2 = Blob.valueOf('test 2 data'); at.body = b2; update b2; Test.stopTest(); }Hope this helpsAttachment at = [Select Id, Body, Name, ParentId from Attachment where ParentId =: objectId limit 1];
I already have test data for my object,
ROund__c round = new Round__c(FY_Control__c = fycontrol.Id, Approval_Status__c = 'Submitted');
insert round;
Attachment attach=new Attachment();
attach.Name='Unit Test Attachment';
Blob bodyBlob=Blob.valueOf('Unit Test Attachment Body');
attach.body=bodyBlob;
insert attach;
But how do I know this is getting inserted for this object?
//add these two line above insert attach
String objectId = round.Id;
attach.ParentId = objectId;
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_testsetup_using.htm