public async Task SaveEvents_inserts_Correlation_entity_correctly(
FakeUserCreated created, Guid correlationId)
{
RaiseEvents(userId, created);
var now = DateTimeOffset.Now;
await sut.SaveEvents <FakeUser>(new[] { created }, correlationId);
using (var db = new DataContext())
{
Correlation correlation = await db
.Correlations
.Where(
c =>
c.AggregateId == userId &&
c.CorrelationId == correlationId)
.SingleOrDefaultAsync();
correlation.Should().NotBeNull();
correlation.HandledAt.Should().BeCloseTo(now);
}
}
public async Task SaveEvents_inserts_Correlation_entity_correctly()
{
FakeUserCreated created = _fixture.Create <FakeUserCreated>();
var correlationId = Guid.NewGuid();
RaiseEvents(_userId, created);
DateTime now = DateTime.UtcNow;
await _sut.SaveEvents <FakeUser>(new[] { created }, correlationId : correlationId);
using (var db = new DataContext())
{
Correlation correlation = await db
.Correlations
.Where(
c =>
c.AggregateId == _userId &&
c.CorrelationId == correlationId)
.SingleOrDefaultAsync();
correlation.Should().NotBeNull();
correlation.HandledAt.Should().BeCloseTo(now);
}
}
private async Task SaveChanges <T>(
EventStoreDbContext context,
Guid sourceId,
Guid?correlationId,
CancellationToken cancellationToken)
where T : class, IEventSourced
{
#if NETSTANDARD2_0
try
{
using (IDbContextTransaction transaction = await
context.Database.BeginTransactionAsync(cancellationToken).ConfigureAwait(false))
{
await context.SaveChangesAsync(cancellationToken).ConfigureAwait(false);
transaction.Commit();
}
}
catch (DbUpdateException exception) when(correlationId.HasValue)
{
IQueryable <Correlation> query = from c in context.Correlations
where c.AggregateId == sourceId && c.CorrelationId == correlationId
select c;
if (await query.AnyAsync().ConfigureAwait(false))
{
throw new DuplicateCorrelationException(
typeof(T),
sourceId,
correlationId.Value,
exception);
}
throw;
}
#else
try
{
await context.SaveChangesAsync(cancellationToken).ConfigureAwait(false);
}
catch (DbUpdateException exception)
when(exception.InnerException is UpdateException)
{
var updateException = (UpdateException)exception.InnerException;
Correlation correlation = updateException
.StateEntries
.Select(s => s.Entity)
.OfType <Correlation>()
.FirstOrDefault();
if (correlation != null)
{
throw new DuplicateCorrelationException(
typeof(T),
sourceId,
correlation.CorrelationId,
exception);
}
throw;
}
#endif
}
