I have a trigger on assets that inserts records into a custom object dependent on the product family and if the value of some custom fields changes. The trigger works fine when I edit records in the user interface in Salesforce. However, I can't make the trigger fire from my test class. I'm not sure why. The "RMR__c" field is updated via a workflow rule on the asset when the "Num_Users_Devices__c" or "RMR_Per_Unit__c". The test class will never go into the "if (trigger.IsUpdate && ((a.Product2.Family == "Cloud IT'......for loop in the trigger.  I'm using a data factory to create the test data and passing in the Product Family but it seems as though the product family is empty in my test class. How can I see what the product family is for the asset?

Here's the Data Factory method to create the product.

public static void createProductWithFamily(String productName, String productFamily){
       // First, set up test price book entries. // Insert a test product.
    	Product2 prod = new Product2(Name = productName, Family = productFamily);
        insert prod;
          system.debug('**** in createProductWithFamily ' + prod);
        // Get standard price book ID.  // This is available irrespective of the state of SeeAllData.   
        Id pricebookId = Test.getStandardPricebookId();
 
        // Insert a price book entry for the standard price book. Standard price book entries require the standard price book ID we got earlier.
        PricebookEntry standardPrice = new PricebookEntry(Pricebook2Id = pricebookId, Product2Id = prod.Id, UnitPrice = 500, IsActive = true);
        insert standardPrice;
         // Create a custom price book
        Pricebook2 customPB = new Pricebook2(Name='Sales', isActive=true);
        insert customPB;
        // 2. Insert a price book entry with a custom price.
        PricebookEntry customPrice = new PricebookEntry(Pricebook2Id = customPB.Id, Product2Id = prod.Id,UnitPrice = 500, IsActive = true);
         insert customPrice; 
    }

Here's the trigger

trigger trgAsset on Asset (after insert, after update, after delete) {
	if (trigger.isInsert || trigger.isUpdate){
		/*If the asset is a Cloud it Product and the number of users changes, the trigger will insert a record into the Cloud_IT_Armor_Gain_Loss__c object with the armor gain or loss*/
		set<id> assetIds = new Set<id>(); // create a set of all asset ids to get the Product family
	    for (Asset a : Trigger.new){ 
	    	assetIds.add(a.Id);
	    }
        // create list of records to insert into Cloud_IT_Armor_Gain_lost object
       list<User_Device_ARMOR_Gain_Lost__c> insertRecords = new list<User_Device_ARMOR_Gain_Lost__c>();
        // loop through assets and get Id and product family
     	set<Asset> assts = new set<Asset>([Select Id, Product2.Family from Asset Where Id in :assetIds]);
       	system.debug('****** in trigger assts before for loop ' + assts);
 		//if trigger is update and product family = CloudIT or Floor 99 Legacy and old Armor is not equal to the new Armor and Old Num Users <> New Num Users
      	for (Asset a: assts){
          if (trigger.isUpdate && 
			((a.Product2.Family == 'Cloud IT' || a.product2.Family == 'Floor 99 Legacy') && (Trigger.oldMap.get(a.Id).RMR__c <> Trigger.newMap.get(a.Id).RMR__c)
 			&& ((Trigger.oldMap.get(a.Id).Num_Users_Devices__c <> Trigger.newMap.get(a.Id).Num_Users_Devices__c) || (Trigger.oldMap.get(a.Id).RMR_Per_Unit__c <> Trigger.newMap.get(a.Id).RMR_Per_Unit__c)))){
                    system.debug('**** in trigger asset in for loop is ' + a);
              Date ArmorDate = Date.Today();
              Id AsstID = a.Id;
              decimal PrevArmor =  Trigger.oldMap.get(a.Id).RMR__c;            
              decimal NewArmor = Trigger.newMap.get(a.Id).RMR__c;
              decimal Gain = 0;
              decimal Loss = 0;
              if (Trigger.newMap.get(a.Id).RMR__c > Trigger.oldMap.get(a.Id).RMR__c){
              	Gain = Trigger.newMap.get(a.Id).RMR__c -  Trigger.oldMap.get(a.Id).RMR__c;
              }else if (Trigger.newMap.get(a.Id).RMR__c < Trigger.oldMap.get(a.Id).RMR__c){
              	Loss = Trigger.oldMap.get(a.Id).RMR__c - Trigger.newMap.get(a.Id).RMR__c ;
              }                     
            User_Device_ARMOR_Gain_Lost__c c = new User_Device_ARMOR_Gain_Lost__c(
              	Asset__c = a.Id,
              	Armor_Date__c = ArmorDate,  
				Previous_Armor__c = PrevArmor,
				New_Armor__c = NewArmor,
              	Armor_Gain__c = Gain,
              	Armor_Lost__c = Loss);   
              insertRecords.add(c);
          }           
      	}
        
        system.debug('**** in trigger insertRecords is ' + insertRecords);
        // if the Num users or armor has changed insert the records
        if (insertRecords.size()>0){
           insert insertRecords; 
       } 	
    }		   
}

/*test for the user/device ARMOR Gains/losses on assets */
@isTest(SeeAllData=false)
private class TestTrgAssetArmorGainsLoss {
    static testMethod void myUnitTest() {
            // create user to run the test a
            User u =  TestDataFactory.createTestRunAsUser('System Administrator', 'System Admin');  
            
            System.runAs(u) {  
            	// Switch to the runtime 
            	Test.StartTest();
             		TestDataFactory.createProductWithFamily('Base Cloud', 'Cloud IT');
               		list<Account> printAccts = TestDataFactory.createTestAccounts(2, 'Other', 'Client');    		
                 	list<Asset> asstCIT = TestDataFactory.createCloudITAssets(printAccts, date.today(), 'Base Cloud', 'Purchased', 10.00, 375, 10);
                	performUpdateAssetNumUsers(asstCIT);
                	checkUserArmorGainLost(asstCIT);
                Test.StopTest();   
             }
        }
	
    public static void performUpdateAssetNumUsers(list<Asset> asst){
        date now = date.today();
        system.debug('**** in performUpdateAssetNumUsers asset list is ' + asst);
        //update the number of users on the asset
        list<Asset>updateAsset = new list<Asset>();
        
		for (Asset ass : asst){
            system.debug('*** in performUpdateAssetNumUsers for loop ass is ' + ass);
            Asset ua = new Asset(
                id = ass.id,
                Num_Users_Devices__c = 12,
                RMR_Per_Unit__c = 10.00);
			updateAsset.add(ua);
       }   
        system.debug('**** in performUpdateAssetNumUsers after update' + updateAsset);
		update updateAsset;
    }
    
    public static void checkUserArmorGainLost(list<Asset> asst){
        //check results of assets to be sure the user/Device ARMOR Gains/Losses records was created.
		list <Asset> assts = [Select Id, RMR__c, Armor_date__c, Num_Users_Devices__c, Product2.Family from Asset Where Id =: asst];
   //     list<Product2> prod = [Select Id, Name, Family from Product2 where Id =: assts.Product2.Id];
   //     system.debug('**** in checkuserArmorGainLost prod is ' + prod);
         
        system.debug('***** assts after update is' + assts);
        list<Id> checkList = new list<id>();
        for (Asset a : assts){
            system.debug('**** asset a in for loop is ' + a);
            checkList.add(a.id);
        }
        set <User_Device_ARMOR_Gain_Lost__c> gainLost = new set<User_Device_ARMOR_Gain_Lost__c>([Select Id, Asset__c, Armor_date__c, Armor_Gain__c, Armor_Lost__c from User_Device_ARMOR_Gain_Lost__c /*Where Asset__c in: checkList */]);
        system.debug('***** gainLost is ' + gainLost);
	//	for (User_Device_ARMOR_Gain_Lost__c g : gainLost){
	//		System.assertEquals(now, g.Armor_date__c);   
	//	}  
        
    }   
}