public bool Equals(StoredEvent other)
{
if (ReferenceEquals(this, other))
return true;
if (ReferenceEquals(null, other))
return false;
return EventId.Equals(other.EventId);
}
public async Task StoreEvents_WillStoreMappedEvents_WhenStreamExistsAndIsNotBroken()
{
// arrange
var streamId = Guid.NewGuid();
var eventMetadata = new Metadata(streamId, typeof (TestAggregateChanged));
var currentStreamVersion = Fixture.Create<long>();
var event1 = Fixture
.Build<TestAggregateChanged>()
.With(e => e.Metadata, eventMetadata)
.Create();
var event2 = Fixture
.Build<TestAggregateChanged>()
.With(e => e.Metadata, eventMetadata)
.Create();
var lastStreamEvent = new StoredEvent(
typeof (TestAggregateCreated).AssemblyQualifiedName,
Fixture.Create<DateTime>(),
Fixture.Create<string>(),
Guid.NewGuid(),
currentStreamVersion);
A.CallTo(() => Faker.Resolve<IEventRepository>()
.GetLast(streamId))
.Returns(Task.FromResult(lastStreamEvent));
var event1Serialiazed = Fixture.Create<string>();
var event2Serialiazed = Fixture.Create<string>();
A.CallTo(() => Faker.Resolve<IEventSerializer>()
.Serialize(event1))
.Returns(event1Serialiazed);
A.CallTo(() => Faker.Resolve<IEventSerializer>()
.Serialize(event2))
.Returns(event2Serialiazed);
var batchId = Guid.NewGuid();
Faker.Provide<Func<Guid>>(() => batchId);
var expectedEventName = typeof (TestAggregateChanged).AssemblyQualifiedName;
var expectedEvents = new List<StoredEvent>
{
new StoredEvent(expectedEventName, event1.Metadata.OccorredOn, event1Serialiazed, batchId, currentStreamVersion + 1),
new StoredEvent(expectedEventName, event2.Metadata.OccorredOn, event2Serialiazed, batchId, currentStreamVersion + 2)
};
var sut = Faker.Resolve<EventStore>();
// act
await sut
.StoreEvents(streamId, currentStreamVersion, new DomainEvent[] { event1, event2 })
.ConfigureAwait(false);
// assert
A.CallTo(() => Faker.Resolve<IEventRepository>()
.Add(
streamId,
A<ICollection<StoredEvent>>.That.Matches(evts => expectedEvents.All(evts.Contains))))
.MustHaveHappened(Repeated.Exactly.Once);
}
public void StoreEvents_WillThrowException_WhenStreamExistsAndIsBroken()
{
// arrange
var streamId = Guid.NewGuid();
var eventMetadata = new Metadata(streamId, typeof(TestAggregateChanged));
var currentStreamVersion = Fixture.Create<long>();
var event1 = Fixture
.Build<TestAggregateChanged>()
.With(e => e.Metadata, eventMetadata)
.Create();
var event2 = Fixture
.Build<TestAggregateChanged>()
.With(e => e.Metadata, eventMetadata)
.Create();
var lastStreamEvent = new StoredEvent(
typeof(TestAggregateCreated).AssemblyQualifiedName,
Fixture.Create<DateTime>(),
Fixture.Create<string>(),
Guid.NewGuid(),
currentStreamVersion + 1);
A.CallTo(() => Faker.Resolve<IEventRepository>()
.GetLast(streamId))
.Returns(Task.FromResult(lastStreamEvent));
Faker.Provide<Func<Guid>>(Guid.NewGuid);
var sut = Faker.Resolve<EventStore>();
Func<Task> exceptionThrower = async () => await sut
.StoreEvents(streamId, currentStreamVersion, new DomainEvent[] { event1, event2 })
.ConfigureAwait(false);
// act & assert
exceptionThrower
.ShouldThrow<InvalidOperationException>()
.And
.Message
.Should()
.Contain($"Cant add new events on version {currentStreamVersion} as current storage version is {lastStreamEvent.EventId}");
A.CallTo(() => Faker.Resolve<IEventRepository>()
.Add(streamId, A<ICollection<StoredEvent>>._))
.MustNotHaveHappened();
}
public static async Task CreateEvent(Guid streamId, StoredEvent storedEvent)
{
using (var connection = new NpgsqlConnection(GetConnectionStringBuilder()))
{
await connection
.OpenAsync()
.ConfigureAwait(false);
using (var command = connection.CreateCommand())
{
command.CommandText = CreateEventSql;
command.Parameters.AddWithValue("@streamId", streamId);
command.Parameters.AddWithValue("@eventId", storedEvent.EventId);
command.Parameters.AddWithValue("@typeName", storedEvent.TypeName);
command.Parameters.AddWithValue("@occurredOn", storedEvent.OccurredOn);
command.Parameters.AddWithValue("@batchId", storedEvent.BatchId);
command.Parameters.AddWithValue("@body", NpgsqlDbType.Json, storedEvent.EventBody);
await command
.ExecuteNonQueryAsync()
.ConfigureAwait(false);
}
}
}
public Task Add(Guid streamId, StoredEvent storedEvent)
{
throw new NotImplementedException();
}
public void Add_WillThrowException_WhenStreamDoesNotExist()
{
// arrange
var streamId = Fixture.Create<Guid>();
var now = GetDateTimeToMillisecond(DateTime.UtcNow);
var batchId = Guid.NewGuid();
var evt1 = new StoredEvent("some type", now, "{\"prop\":\"value\"}", batchId, 1L);
var evt2 = new StoredEvent("some type2", now, "{\"prop\":\"value1\"}", batchId, 3L);
var events = new[] { evt1, evt2 };
Func<Task> exceptionThrower = async () => await _sut
.Add(streamId, events)
.ConfigureAwait(false);
// act/assert
exceptionThrower
.ShouldThrow<PostgresException>();
}
public async Task Add_WillAddEvents_ToStreamWithEvents()
{
// arrange
var streamId = Fixture.Create<Guid>();
var streamName = Fixture.Create<string>();
await DatabaseHelper
.CreateEventStream(streamId, streamName)
.ConfigureAwait(false);
var now = GetDateTimeToMillisecond(DateTime.UtcNow);
var batchId = Guid.NewGuid();
var evt1 = new StoredEvent("some type", now, "{\"prop\":\"value\"}", batchId, 1L);
var evt2 = new StoredEvent("some type2", now, "{\"prop\":\"value1\"}", batchId, 2L);
await DatabaseHelper
.CreateEvent(streamId, evt1)
.ConfigureAwait(false);
await DatabaseHelper
.CreateEvent(streamId, evt2)
.ConfigureAwait(false);
var batchId2 = Guid.NewGuid();
var evtToAdd1 = new StoredEvent("some type", now.AddMinutes(2), "{\"prop\":\"value\"}", batchId2, 5L);
var evtToAdd2 = new StoredEvent("some type2", now.AddMinutes(2), "{\"prop\":\"value1\"}", batchId2, 6L);
var evtToAdd3 = new StoredEvent("some type", now.AddMinutes(5), "{}", batchId2, 7L);
var eventsToAdd = new[] { evtToAdd1, evtToAdd2, evtToAdd3 };
var events = new[] {evt1, evt2, evtToAdd1, evtToAdd2, evtToAdd3};
// act
await _sut
.Add(streamId, eventsToAdd)
.ConfigureAwait(false);
// assert
var actualEvents = await DatabaseHelper
.GetStreamEvents(streamId)
.ConfigureAwait(false);
actualEvents
.Should()
.ContainInOrder(events);
}
public async Task GetLast_WillReturnLastEvent_WhenThereAreMultipleEvents()
{
// arrange
var streamId = Fixture.Create<Guid>();
var streamName = Fixture.Create<string>();
await DatabaseHelper
.CreateEventStream(streamId, streamName)
.ConfigureAwait(false);
var now = GetDateTimeToMillisecond(DateTime.UtcNow);
var batchId = Guid.NewGuid();
var event1 = new StoredEvent("some type", now, "{\"prop\":\"value\"}", batchId, 1L);
var event2 = new StoredEvent("some type", now, "{}", batchId, 2L);
await DatabaseHelper
.CreateEvent(streamId, event1)
.ConfigureAwait(false);
await DatabaseHelper
.CreateEvent(streamId, event2)
.ConfigureAwait(false);
// act
var lastEvent = await _sut
.GetLast(streamId)
.ConfigureAwait(false);
// assert
lastEvent.ShouldBeEquivalentTo(event2);
}
public async Task GetSelected_WillReturnEmptyList_WhenThereAreNoEventsForSelectedBitOfStream()
{
// arrange
var streamId = Fixture.Create<Guid>();
var streamName = Fixture.Create<string>();
await DatabaseHelper
.CreateEventStream(streamId, streamName)
.ConfigureAwait(false);
var now = GetDateTimeToMillisecond(DateTime.UtcNow);
var batchId = Guid.NewGuid();
var event1 = new StoredEvent("some type", now, "{\"prop\":\"value\"}", batchId, 1L);
var event2 = new StoredEvent("some type", now.AddSeconds(1), "{}", batchId, 2L);
await DatabaseHelper
.CreateEvent(streamId, event1)
.ConfigureAwait(false);
await DatabaseHelper
.CreateEvent(streamId, event2)
.ConfigureAwait(false);
// act
var events = await _sut
.GetSelected(streamId, 3L)
.ConfigureAwait(false);
// assert
events.Should().BeEmpty();
}
public async Task GetAll_WillReturnAllEvents_WhenThereAreEventsForStream()
{
// arrange
var streamId = Fixture.Create<Guid>();
var streamName = Fixture.Create<string>();
var now = GetDateTimeToMillisecond(DateTime.UtcNow);
await DatabaseHelper
.CreateEventStream(streamId, streamName)
.ConfigureAwait(false);
var batchId = Guid.NewGuid();
var event1 = new StoredEvent("some type", now, "{\"prop\":\"value\"}", batchId, 1L);
var event2 = new StoredEvent("some type", now.AddSeconds(1), "{}", batchId, 2L);
await DatabaseHelper
.CreateEvent(streamId, event1)
.ConfigureAwait(false);
await DatabaseHelper
.CreateEvent(streamId, event2)
.ConfigureAwait(false);
var expectedEvents = new[]
{
event1,
event2
};
// act
var events = await _sut
.GetAll(streamId)
.ConfigureAwait(false);
// assert
events
.Should()
.ContainInOrder(expectedEvents);
}
