Integration tests are getting failed. can we able to regenerate the test cases again with suite? #10206

1 Answer(s)

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  AI-Bot created 4 hours ago

  Support Team ABP Agent

  1. Solution Your test failure is thrown while ABP initializes the test application and runs your custom data seeding (NullReferenceException inside SiteManagementDataSeedContributor.SeedAsync). This typically happens in ABP tests when:

  • Seed contributors assume services or data that aren’t available in the test environment.
  • Seeding runs outside the proper tenant context.
  • Seeding touches EF Core or repositories before the DbContext is ready or within an unexpected transaction.

  Apply the following steps to make your integration tests deterministic and fix the failure:

  • Guard your seed contributor against nulls and run inside a unit of work

  public class SiteManagementDataSeedContributor : IDataSeedContributor, ITransientDependency
    {
        private readonly IUnitOfWorkManager _uowManager;
        private readonly IRepository<Contact, Guid> _contactRepository; // example
        private readonly ICurrentTenant _currentTenant;
  
        public SiteManagementDataSeedContributor(
            IUnitOfWorkManager uowManager,
            IRepository<Contact, Guid> contactRepository,
            ICurrentTenant currentTenant)
        {
            _uowManager = uowManager;
            _contactRepository = contactRepository;
            _currentTenant = currentTenant;
        }
  
        public async Task SeedAsync(DataSeedContext context)
        {
            // Avoid host-only seeding when you expect tenant-only data
            // and/or ensure you seed for a specific tenant
            using (_currentTenant.Change(context?.TenantId))
            {
                using (var uow = _uowManager.Begin(requiresNew: true))
                {
                    // Defensive checks to prevent NREs
                    if (_contactRepository == null)
                    {
                        await uow.CompleteAsync();
                        return;
                    }
  
                    // Example: skip if already seeded
                    var count = await _contactRepository.GetCountAsync();
                    if (count == 0)
                    {
                        await _contactRepository.InsertAsync(new Contact(/* init fields */), autoSave: true);
                        // ... add more seed data
                    }
  
                    await uow.CompleteAsync();
                }
            }
        }
    }
  

  • Ensure your test base module seeds within OnApplicationInitialization and inside a scope

  public class SiteManagementTestBaseModule : AbpModule
    {
        public override void OnApplicationInitialization(ApplicationInitializationContext context)
        {
            SeedTestData(context);
        }
  
        private static void SeedTestData(ApplicationInitializationContext context)
        {
            AsyncHelper.RunSync(async () =>
            {
                using var scope = context.ServiceProvider.CreateScope();
                var dataSeeder = scope.ServiceProvider.GetRequiredService<IDataSeeder>();
  
                // Optionally seed for host or a specific test tenant
                await dataSeeder.SeedAsync(new DataSeedContext(/* tenantId: null or a tenant Guid */));
            });
        }
    }
  

  • If multi-tenancy is involved, make sure your tenant-scoped entities implement IMultiTenant If your Contacts (or any entity you seed/query in tests) are tenant-specific, the entity must implement IMultiTenant so ABP applies tenant filters and the correct connection (in database-per-tenant or split schemas) is used.

  public class Contact : AggregateRoot<Guid>, IMultiTenant
    {
        public Guid? TenantId { get; set; }
        // other properties...
    }
  

  • Disable transactions in tests if you see transaction-related initialization errors Some providers/settings can cause issues with ambient transactions during seeding and initialization. In your EntityFrameworkCore test module, add:

  public override void ConfigureServices(ServiceConfigurationContext context)
    {
        Configure<AbpUnitOfWorkDefaultOptions>(options =>
        {
            options.TransactionBehavior = UnitOfWorkTransactionBehavior.Disabled;
        });
  
        context.Services.AddAlwaysDisableUnitOfWorkTransaction();
  
        Configure<FeatureManagementOptions>(options =>
        {
            options.SaveStaticFeaturesToDatabase = false;
            options.IsDynamicFeatureStoreEnabled = false;
        });
        Configure<PermissionManagementOptions>(options =>
        {
            options.SaveStaticPermissionsToDatabase = false;
            options.IsDynamicPermissionStoreEnabled = false;
        });
    }
  

  • Keep test seeding minimal and deterministic

    • Avoid external services or configuration that are not present in tests.
    • Use repositories only after Unit of Work is started.
    • Prefer idempotent seeding (check existence before insert).

  • If you need tenant data during test, explicitly seed for that tenant

  var tenantId = /* known test tenant Guid */;
    await dataSeeder.SeedAsync(new DataSeedContext(tenantId));
  

  These practices address:

  • The NullReferenceException by defensive coding and proper DI usage.
  • Ensuring the correct tenant context is used during seeding.
  • Avoiding transaction-related issues that can surface during test initialization.

  2. Sources

  • https://docs.abp.io/en/abp/latest/Testing
  • https://abp.io/support/questions/8896
  • https://abp.io/support/questions/6135

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