Improve extensibility (#22)

Fixes #21

src/RdbmsEventStore.EntityFramework.Tests/ExtensibilityTests/NonDefaultImplementationsTests.cs

@@ -0,0 +1,84 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Data.Entity;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using RdbmsEventStore.EntityFramework.Tests.Infrastructure;
+using RdbmsEventStore.EntityFramework.Tests.TestData;
+using Xunit;
+
+namespace RdbmsEventStore.EntityFramework.Tests.ExtensibilityTests
+{
+    public class NonDefaultEvent : IMutableEvent<long, long>
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        public long EventId { get; set; }
+        [Required]
+        public long StreamId { get; set; }
+        [Required]
+        public DateTimeOffset Timestamp { get; set; }
+        [Required]
+        public long Version { get; set; }
+        [Required]
+        public string Type { get; set; }
+        [Required]
+        public byte[] Payload { get; set; }
+    }
+
+    public class NonDefaultContext : DbContext, IEventDbContext<NonDefaultEvent>
+    {
+        public DbSet<NonDefaultEvent> Events { get; set; }
+    }
+
+    [Collection(nameof(InMemoryDatabaseCollection))]
+    public class NonDefaultImplementationsTests : IClassFixture<EventStoreFixture<long, long, NonDefaultEvent>>, IDisposable
+    {
+        private readonly EventStoreFixture<long, long, NonDefaultEvent> _fixture;
+        private readonly NonDefaultContext _dbContext;
+
+        public NonDefaultImplementationsTests(EventStoreFixture<long, long, NonDefaultEvent> fixture)
+        {
+            EffortProviderFactory.ResetDb();
+            _fixture = fixture;
+            _dbContext = new NonDefaultContext();
+        }
+
+        [Fact]
+        public async Task CanCommitEventsToStoreWithDefaultImplementations()
+        {
+            var store = _fixture.BuildEventStore(_dbContext);
+
+            await store.Commit(1, 0, new FooEvent { Foo = "Bar" });
+        }
+
+        [Fact]
+        public async Task CanReadEventsFromStoreWithNonDefaultImplementations()
+        {
+            _dbContext.Events.AddRange(new[]
+            {
+                new NonDefaultEvent
+                {
+                    StreamId = 1,
+                    Timestamp = DateTimeOffset.UtcNow,
+                    Version = 1,
+                    Type = "FooEvent",
+                    Payload =Encoding.UTF8.GetBytes(@"{""Foo"":""Bar""}")
+                }
+            });
+            await _dbContext.SaveChangesAsync();
+
+            var store = _fixture.BuildEventStore(_dbContext);
+
+            var events = await store.Events(1);
+
+            Assert.Equal(1, events.Count());
+        }
+        public void Dispose()
+        {
+            _dbContext?.Dispose();
+        }
+    }
+}

src/RdbmsEventStore.EntityFramework.Tests/Infrastructure/EventStoreFixture.cs

@@ -1,12 +1,13 @@
 using System;
+using System.Data.Entity;
 using RdbmsEventStore.EventRegistry;
 
 namespace RdbmsEventStore.EntityFramework.Tests.Infrastructure
 {
     public class EventStoreFixture<TId, TStreamId, TEvent>
         where TId : IEquatable<TId>
         where TStreamId : IEquatable<TStreamId>
-        where TEvent : Event<TId, TStreamId>, new()
+        where TEvent : class, IMutableEvent<TId, TStreamId>, new()
     {
         public EventStoreFixture()
         {
@@ -21,7 +22,8 @@ public EventStoreFixture()
         public DefaultEventFactory<TId, TStreamId, TEvent> EventFactory { get; }
         public IWriteLock WriteLock { get; }
 
-        public EntityFrameworkEventStore<TId, TStreamId, EventStoreContext<TEvent>, TEvent> BuildEventStore(EventStoreContext<TEvent> dbContext)
-            => new EntityFrameworkEventStore<TId, TStreamId, EventStoreContext<TEvent>, TEvent>(dbContext, EventFactory, WriteLock);
+        public EntityFrameworkEventStore<TId, TStreamId, TEventStoreContext, TEvent> BuildEventStore<TEventStoreContext>(TEventStoreContext dbContext)
+            where TEventStoreContext : DbContext, IEventDbContext<TEvent>
+            => new EntityFrameworkEventStore<TId, TStreamId, TEventStoreContext, TEvent>(dbContext, EventFactory, WriteLock);
     }
 }

src/RdbmsEventStore.EntityFramework/EntityFrameworkEventStore.cs

@@ -10,7 +10,7 @@ public class EntityFrameworkEventStore<TId, TStreamId, TContext, TEvent> : IEven
         where TId : IEquatable<TId>
         where TStreamId : IEquatable<TStreamId>
         where TContext : DbContext, IEventDbContext<TEvent>
-        where TEvent : Event<TId, TStreamId>, IEvent<TId, TStreamId>, new()
+        where TEvent : class, IEvent<TId, TStreamId>, new()
     {
         private readonly TContext context;
         private readonly IEventFactory<TId, TStreamId, TEvent> _eventFactory;