Dear Community  

I am buiding the test class for Validation rule that block users with Permission Set assigned and proper record type from editing certaint  fields. 

I keep running into the issue.  
Error Message   System.AssertException: Assertion Failed: Validation rule should throw correct error.: Expected: true, Actual: false
Stack Trace              Class.Test_VR_FSRNAAssetBlockEdit.Test_FSRNABlockPIMSEdit: line 215, column 1

Where I testing update of the Account ID.  
Line 215 is failing
System.assertEquals(true, validError, 'Validation rule should throw correct error.');

Any advise on how to fix the error would be much appriciated? 
Thnak you in advance. 
Kasia 

@isTest
public class Test_VR_FSRNAAssetBlockEdit {
    
    
    private class TestException extends Exception {}

    static final string PERM_SET = 'FSR_NA_DBR_Setup_and_Installation_Permissions';
    
    
    @testSetup
    public static void dataSetup() {
      // create test user with Field Support Rep NA profile 
    Profile FSRNA = [SELECT Id, Name FROM Profile WHERE Name = 'Field Support Rep - CAG'];
        

        User u = new User(
            Alias = 'CTSvTest',
            Email = 'TestAssetValidationRuleFSRNA@XXXX.com',
            Username = 'TestAssetValidationRS@XXXX.com',
            FirstName = 'CTS Test',
            LastName = 'UserAssetVR',
            TimeZoneSidKey = 'America/New_York',
            LocaleSidKey = 'en_US',
            EmailEncodingKey = 'UTF-8',
            LanguageLocaleKey = 'en_US',
            ProfileId = FSRNA.Id
        );

        insert u;
        
        // need to assign user to permission set
        PermissionSet ps = [SELECT Id FROM PermissionSet WHERE Name = :PERM_SET];
    
        PermissionSetAssignment psa = new PermissionSetAssignment(
        PermissionSetId = ps.Id,
        AssigneeId = u.Id
        );
        insert psa;
        
        // Make Account
        Account acc = new Account();
        acc.Name = 'TestAccount';
        acc.BillingCity ='Boston' ;
        acc.BillingCountry='United States';
        acc.BillingPostalCode='600075';
        acc.BillingState=' Massachusetts';
        acc.BillingStreet='water well street';
        acc.ShippingCity ='Boston' ;
        acc.ShippingCountry='United States';
        acc.ShippingPostalCode='600075';
        acc.ShippingState=' Massachusetts';
        acc.ShippingStreet='water well street'; 
        acc.TIN__c = '1';

        System.runAs(u) {
            insert acc;
        }
    }  
    @IsTest
    static void Test_FSRNABlockPIMSEdit () {
        // Get Record Type
        Id assetRecordTypeId = Schema.SObjectType.Asset.getRecordTypeInfosByDeveloperName().get('XXXX_Practice_Information_Mgmt').getRecordTypeId();
        User u = [ SELECT Id FROM User WHERE Username = 'TestAssetValidationRS@XXXX.com' LIMIT 1 ];
        Account acc = [ SELECT Id FROM Account WHERE Name = 'TestAccount' LIMIT 1 ];

        Asset product = new Asset();
        product.Status = 'Installed';
        product.Is_Active__c = true;
        product.SerialNumber = 'TA001';
        product.RecordTypeId = assetRecordTypeId;
        product.AccountId = acc.Id;
        product.Asset_Category__c = 'Practice Software';
        product.Activation_Key__c = '1234-5678-90';
        product.Name = 'Cornerstone';
        insert product;

        // Test edit of activation key
        try {
            System.runAs(u) {
                product.Name = 'Cornerstone';
                product.Activation_Key__c = '0912-5678-90';
                update product;
        }
            throw new TestException('Failed to throw correctly');
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            Boolean validError = errorMessage.contains('You cannot edit XXXX Products and Services record.');
            System.assertEquals(true, validError, 'Validation rule should throw correct error.');
        }

        System.runAs(u){
            product.Activation_Key__c = '0912-5678-90';
        }

        // Test edit of PIMS installed sw version
        try {
            System.runAs(u) {
                product.Name = 'Cornerstone';
                product.PIMS_Installed_SW_Version__c = '8.5.01.2';
                update product;
        }
            throw new TestException('Failed to throw correctly');
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            Boolean validError = errorMessage.contains('You cannot edit XXXX Products and Services record.');
            System.assertEquals(true, validError, 'Validation rule should throw correct error.');
        }

        System.runAs(u){
            product.PIMS_Installed_SW_Version__c = '8.5.01.3';
        }

        // Test edit of PIMS primary OS
        try {
            System.runAs(u) {
                product.Name = 'Cornerstone';
                product.PIMS_Primary_Operating_System__c = 'Macintosh';
                update product;
        }
            throw new TestException('Failed to throw correctly');
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            Boolean validError = errorMessage.contains('You cannot edit XXXX Products and Services record.');
            System.assertEquals(true, validError, 'Validation rule should throw correct error.');
        }

        System.runAs(u){
            product.PIMS_Primary_Operating_System__c = 'Windows';
        }

        // Test edit of Service Level
        try {
            System.runAs(u) {
                product.Name = 'Cornerstone';
                product.PIMS_Service_Level__c = 'Gold';
                update product;
        }
            throw new TestException('Failed to throw correctly');
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            Boolean validError = errorMessage.contains('You cannot edit XXXX Products and Services record.');
            System.assertEquals(true, validError, 'Validation rule should throw correct error.');
        }

        System.runAs(u){
            product.PIMS_Service_Level__c  = 'Silver';
        }

       
       // Test edit of XXXX Unique Key
        try {
            System.runAs(u) {
                product.Name = 'Cornerstone';
                product.SAP_Cust_No_Type_ID__c = '1';
                update product;
        }
            throw new TestException('Failed to throw correctly');
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            Boolean validError = errorMessage.contains('You cannot edit XXXX Products and Services record.');
            System.assertEquals(true, validError, 'Validation rule should throw correct error.');
        }

        System.runAs(u){
            product.SAP_Cust_No_Type_ID__c  = '2';
        }
        
       // Test edit of Version
        try {
            System.runAs(u) {
                product.Name = 'Cornerstone';
                product.Version__c = '1';
                update product;
        }
            throw new TestException('Failed to throw correctly');
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            Boolean validError = errorMessage.contains('You cannot edit XXXX Products and Services record.');
            System.assertEquals(true, validError, 'Validation rule should throw correct error.');
        }

        System.runAs(u){
            product.Version__c  = '2';
        }
        
        // Test edit of PIMS Poeple ID 
        try {
            System.runAs(u) {
                product.Name = 'Cornerstone';
                product.PIMS_People_ID__c = 122222;
                update product;
        }
            throw new TestException('Failed to throw correctly');
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            Boolean validError = errorMessage.contains('You cannot edit XXXX Products and Services record.');
            System.assertEquals(true, validError, 'Validation rule should throw correct error.');
        }

        System.runAs(u){
            product.PIMS_People_ID__c = 122222;
        }
        
       // Test edit of Account Id 
        try {
            System.runAs(u) {
                product.Name = 'Cornerstone';
                product.AccountId = 'ABC Clinic';
                update product;
        }
            throw new TestException('Failed to throw correctly');
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            Boolean validError = errorMessage.contains('You cannot edit XXXX Products and Services record.');
            System.assertEquals(true, validError, 'Validation rule should throw correct error.');
        }

        System.runAs(u){
            product.AccountId = 'ABC Test Clinic';
        }