public async Task returns_failure_status_when_conditionally_appending_with_version_mismatch()
{
var stream = _fixture.GetStreamName();
var result = await _fixture.Client.ConditionalAppendToStreamAsync(stream, new StreamRevision(7),
_fixture.CreateTestEvents());
Assert.Equal(ConditionalWriteResult.FromWrongExpectedVersion(
new WrongExpectedVersionException(stream, new StreamRevision(7), StreamRevision.None)),
result);
}
public static async Task <ConditionalWriteResult> ConditionalAppendToStreamAsync(
this EventStoreClient client,
string streamName,
StreamRevision expectedRevision,
IEnumerable <EventData> eventData,
UserCredentials?userCredentials = null,
CancellationToken cancellationToken = default)
{
if (client == null)
{
throw new ArgumentNullException(nameof(client));
}
try {
var result = await client.AppendToStreamAsync(streamName, expectedRevision, eventData,
options => options.ThrowOnAppendFailure = false, userCredentials, cancellationToken)
.ConfigureAwait(false);
return(ConditionalWriteResult.FromWriteResult(result));
} catch (StreamDeletedException) {
return(ConditionalWriteResult.StreamDeleted);
}
}
