Here is a great article on writing test methods.

http://wiki.apexdevnet.com/index.php/An_Introduction_to_Apex_Code_Test_Methods

Basically, you need to cause your trigger to fire by simulating the trigger condition on the object you are testing, then add enough conditions to cover all of the code.

In your case, you have a case trigger, with before insert and before update conditions, so you would need to try at least one insert case test and one update case test.

Use system.assert to check that your trigger has done what it was supposed to do.

I would use the system.runas   to create and insert your case object as a different user (than yourself), then once it is inserted, read the resulting record back out into a test case object, and then test the fields that are supposed to get updated to make sure they did.

@isTest private class TriggerTest { static testMethod void runPositiveTestCases() { String testcaseid=''; Case testcase = new Case(); //add all required field values here testcase.name=''; testcase.type=''; //get one user of proper type, use the where clause to filter user u=[select id,region__c,office__c from user where xx LIMIT 1 ] system.runas(u){ try{ insert testcase; testcaseid=testcase.id; //if created correctly }catch(DMLException e){ system.assert(false, 'Error occurred inserting test record:'+e.getDMLMessage(0)); } } Case checkcase = [select id,agentregion__c,agentoffice__c from case where id=:testcaseid]; //validate that the trigger updated the case correctly. system.assertequals(u.region__c,checkcase.agentregion__c); system.assertequals(u.office__c,checkcase.agentoffice__c); } }

So this is what I have:

@isTest private class TriggerTest { static testMethod void runPositiveTestCases() { String testcaseid=''; Case testcase = new Case(); testcase.status='new'; testcase.origin='web'; testcase.description='test'; testcase.owner='00570000000sIeO'; testcase.owner_office_new__c='firmwide'; //get one user of proper type, use the where clause to filter user u=[select id,office__c from user where u LIMIT 1 ] system.runas(u){ try{ insert testcase; testcaseid=testcase.id; //if created correctly }catch(DMLException e){ system.assert(false, 'Error occurred inserting test record:'+e.getDMLMessage(0)); } } Case checkcase = [select id,Owner_office_new__c from case where id=:testcaseid]; //validate that the trigger updated the case correctly. system.assertequals(u.office__c,checkcase.Owner_Office_new__c); } }

I have created the required fields and inputed a value for each.

The trigger is based on the owner field and the owner_office_new__c field and in the above case, the owner office should be 'firmwide'

I am having difficulty with the following line:

 user u=[select id,office__c from user where u LIMIT 1 ]
I am not quite sure I understand what you mean by using the 'where' as a filter.

Thanks again!

Looks good.  My only thoughts would be, don't set the value for owner, wouldn't that be the creator, by default?  That is the purpose of using the runas, to simulate a user executing the new case insertion.  Also, don't put your office location in when you insert, if that is what the trigger is supposed to do.

The where clause in SOQL is how you filter results. Your goal will be to select a representitive user to run your test as.  You don't want to hard code the value for the user, as that isn't always portable between dev and production.

So, if you wanted to pick your test user that has a profile of "Sales User" for example, your SOQL would look like this:

user u=[select id,profileid, office__c from user where profile.name='Sales User' LIMIT 1 ]

Now, I am receiving a Save error: unexpected token: system.runas.

Here is my code:

@isTest private class TriggerTest { static testMethod void runPositiveTestCases() { String testcaseid=''; Case testcase = new Case(); testcase.status='new'; testcase.origin='web'; testcase.description='test'; //get one user of proper type, use the where clause to filter user u=[select id,office__c from user where profile.name='Standard Gensler Agent' LIMIT 1 ] system.runas(u){ try{ insert testcase; testcaseid=testcase.id; //if created correctly }catch(DMLException e){ system.assert(false, 'Error occurred inserting test record:'+e.getDMLMessage(0)); } } Case checkcase = [select id,Owner_office_new__c from case where id=:testcaseid]; //validate that the trigger updated the case correctly. system.assertequals(u.office__c,checkcase.Owner_Office_new__c); } }

 Thoughts?

Now, I am receiving a Save error: unexpected token: system.runas.

Here is my code:

@isTest
private class TriggerTest {

static testMethod void runPositiveTestCases() {
String testcaseid='';
Case testcase = new Case();
testcase.status='new';
testcase.origin='web';
testcase.description='test';
//get one user of proper type, use the where clause to filter
user u=[select id,office__c from user where profile.name='Standard Gensler Agent' LIMIT 1 ]
system.runas(u){
try{
insert testcase;
testcaseid=testcase.id; //if created correctly
}catch(DMLException e){
system.assert(false, 'Error occurred inserting test record:'+e.getDMLMessage(0));
}
}
Case checkcase = [select id,Owner_office_new__c from case where id=:testcaseid];

//validate that the trigger updated the case correctly.
system.assertequals(u.office__c,checkcase.Owner_Office_new__c);

}
}

 Thoughts?