diff --git a/test/EventHub.Domain.Tests/Events/Registrations/EventRegistrationRepository_Tests.cs b/test/EventHub.Domain.Tests/Events/Registrations/EventRegistrationRepository_Tests.cs
new file mode 100644
index 0000000..77956a5
--- /dev/null
+++ b/test/EventHub.Domain.Tests/Events/Registrations/EventRegistrationRepository_Tests.cs
@@ -0,0 +1,66 @@
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.EntityFrameworkCore;
+using Shouldly;
+using Volo.Abp.Domain.Repositories;
+using Xunit;
+
+namespace EventHub.Events.Registrations
+{
+    public class EventRegistrationRepository_Tests : EventHubDomainTestBase
+    {
+        private readonly IEventRegistrationRepository _repository;
+        private readonly EventHubTestData _testData;
+
+        public EventRegistrationRepository_Tests()
+        {
+            _repository = GetRequiredService<IEventRegistrationRepository>();
+            _testData = GetRequiredService<EventHubTestData>();
+        }
+
+        [Fact]
+        public async Task Exists_Should_Return_False_If_Not_Registered()
+        {
+            var exists = await _repository.ExistsAsync(
+                _testData.AbpMicroservicesFutureEventId, 
+                _testData.UserJohnId);
+            exists.ShouldBeFalse();
+
+            await _repository.InsertAsync(
+                new EventRegistration(
+                    Guid.NewGuid(),
+                    _testData.AbpMicroservicesFutureEventId,
+                    _testData.UserJohnId));
+        }
+        
+        [Fact]
+        public async Task Exists_Should_Return_True_If_Registered()
+        {
+            await _repository.InsertAsync(
+                new EventRegistration(
+                    Guid.NewGuid(),
+                    _testData.AbpMicroservicesFutureEventId,
+                    _testData.UserJohnId));
+            
+            var exists = await _repository.ExistsAsync(
+                _testData.AbpMicroservicesFutureEventId, 
+                _testData.UserJohnId);
+            exists.ShouldBeTrue();
+        }
+        
+        [Fact]
+        public async Task Test_With_Uow()
+        {
+            await WithUnitOfWorkAsync(async () =>
+            {
+                var queryable = await _repository.GetQueryableAsync();
+                var exists = await queryable.Where(
+                    x => x.EventId == _testData.AbpMicroservicesFutureEventId &&
+                         x.UserId == _testData.UserJohnId
+                ).FirstOrDefaultAsync();
+                exists.ShouldBeNull();
+            });
+        }
+    }
+}
\ No newline at end of file