public async Task Should_send_logs_to_udp_syslog_service()
{
var syslogFormatter = new Rfc3164Formatter(Facility.Local0, "TestApp");
var sink = new SyslogUdpSink(this.endpoint, syslogFormatter, this.batchConfig);
var log = GetLogger(sink);
var receiver = new UdpSyslogReceiver();
receiver.MessageReceived += (_, msg) =>
{
this.messagesReceived.Add(msg);
this.countdown.Signal();
};
var receiveTask = receiver.StartReceiving(this.endpoint, this.cts.Token);
log.Information("This is test message 1");
log.Warning("This is test message 2");
log.Error("This is test message 3");
await this.countdown.WaitAsync(20000, this.cts.Token);
this.messagesReceived.Count.ShouldBe(3);
this.messagesReceived.ShouldContain(x => x.StartsWith("<134>"));
this.messagesReceived.ShouldContain(x => x.StartsWith("<132>"));
this.messagesReceived.ShouldContain(x => x.StartsWith("<131>"));
sink.Dispose();
this.cts.Cancel();
await receiveTask;
}
private async Task Should_send_logs_to_udp_syslog_service(IPEndPoint endpoint)
{
var syslogFormatter = new Rfc3164Formatter(Facility.Local0, "TestApp");
var sink = new SyslogUdpSink(endpoint, syslogFormatter);
// Start a simple UDP syslog server that will capture all received messaged
var receiver = new UdpSyslogReceiver();
receiver.MessageReceived += (_, msg) =>
{
this.messagesReceived.Add(msg);
this.countdown.Signal();
};
var receiveTask = receiver.StartReceiving(endpoint, this.cts.Token);
// Generate and send 3 log events
var logEvents = Some.LogEvents(3);
await sink.EmitBatchAsync(logEvents);
// Wait until the server has received all the messages we sent, or the timeout expires
await this.countdown.WaitAsync(4000, this.cts.Token);
// The server should have received all 3 messages sent by the sink
this.messagesReceived.Count.ShouldBe(logEvents.Length);
this.messagesReceived.ShouldAllBe(x => logEvents.Any(e => x.EndsWith(e.MessageTemplate.Text)));
sink.Dispose();
this.cts.Cancel();
await receiveTask;
}
private async Task SendUdpAsync(IPAddress address)
{
// Start a simple UDP syslog server that will capture all received messaged
var receiver = new UdpSyslogReceiver(this.cts.Token);
receiver.MessageReceived += (_, msg) =>
{
this.messagesReceived.Add(msg);
this.countdown.Signal();
};
var syslogFormatter = new Rfc3164Formatter(Facility.Local0, "TestApp");
var ipEndPoint = new IPEndPoint(address, receiver.ListeningIPEndPoint.Port);
var sink = new SyslogUdpSink(ipEndPoint, syslogFormatter);
// Generate and send 3 log events
var logEvents = Some.LogEvents(NumberOfEventsToSend);
await sink.EmitBatchAsync(logEvents);
// Wait until the server has received all the messages we sent, or the timeout expires
await this.countdown.WaitAsync(TimeoutInSeconds, this.cts.Token);
// The server should have received all 3 messages sent by the sink
this.messagesReceived.Count.ShouldBe(logEvents.Length);
this.messagesReceived.ShouldAllBe(x => logEvents.Any(e => x.EndsWith(e.MessageTemplate.Text)));
sink.Dispose();
this.cts.Cancel();
}
public async Task Extension_method_config_with_port()
{
var receiver = new UdpSyslogReceiver(this.cts.Token);
var logger = new LoggerConfiguration().MinimumLevel.Debug();
logger.WriteTo.UdpSyslog(IPAddress.Loopback.ToString(),
receiver.ListeningIPEndPoint.Port);
await TestLoggerFromExtensionMethod(logger, receiver);
}
public async Task Extension_method_config_with_port_and_Rfc5424_format()
{
var receiver = new UdpSyslogReceiver(this.cts.Token);
var logger = new LoggerConfiguration();
logger.WriteTo.UdpSyslog(IPAddress.Loopback.ToString(),
receiver.ListeningIPEndPoint.Port,
format: SyslogFormat.RFC5424);
await TestLoggerFromExtensionMethod(logger, receiver);
}
public async Task Extension_method_config_with_port_and_restricted_minimum_level()
{
var receiver = new UdpSyslogReceiver(this.cts.Token);
var logger = new LoggerConfiguration();
logger.WriteTo.UdpSyslog(IPAddress.Loopback.ToString(),
receiver.ListeningIPEndPoint.Port,
restrictedToMinimumLevel: LogEventLevel.Fatal);
// In the logger configuration, the restricted minimum level is set to Fatal, which is the
// highest value. But the log events that will be generated and sent to the log are only at
// the Information level. Therefore, they will not be written/sent to the log and will be
// ignored. We don't expect to receive any log events and the test will only complete when
// the timeout has elapsed.
await TestLoggerFromExtensionMethod(logger, receiver, 0);
}
public async Task Extension_method_config_with_Rfc3164_format_and_severityMapping()
{
var receiver = new UdpSyslogReceiver(this.cts.Token);
var logger = new LoggerConfiguration();
logger.WriteTo.UdpSyslog(IPAddress.Loopback.ToString(),
receiver.ListeningIPEndPoint.Port,
format: SyslogFormat.RFC3164,
severityMapping: level =>
level switch
{
LogEventLevel.Verbose => Severity.Debug,
LogEventLevel.Debug => Severity.Debug,
LogEventLevel.Information => Severity.Informational,
LogEventLevel.Warning => Severity.Warning,
LogEventLevel.Error => Severity.Error,
LogEventLevel.Fatal => Severity.Critical,
_ => throw new ArgumentOutOfRangeException(nameof(level), $"The value {level} is not a valid LogEventLevel.")
});
public async Task Extension_method_config_with_port_and_Rfc5424_format_and_messageIdPropertyName()
{
var receiver = new UdpSyslogReceiver(this.cts.Token);
var logger = new LoggerConfiguration();
logger.WriteTo.UdpSyslog(IPAddress.Loopback.ToString(),
receiver.ListeningIPEndPoint.Port,
format: SyslogFormat.RFC5424,
messageIdPropertyName: "WidgetProcess");
var evtProperties = new List <LogEventProperty>
{
new LogEventProperty("WidgetProcess", new ScalarValue("Widget42")),
};
// Should produce log events like:
// <134>1 2013-12-19T00:01:00.000000-07:00 DSGCH0FP72 testhost.net462.x86 2396 Widget42 [meta WidgetProcess="Widget42"] __2
var logEvents = Some.LogEvents(NumberOfEventsToSend, evtProperties);
await TestLoggerFromExtensionMethod(logger, receiver, altLogEvents : logEvents);
}
private async Task TestLoggerFromExtensionMethod(LoggerConfiguration logger, UdpSyslogReceiver receiver, int expected = NumberOfEventsToSend, Events.LogEvent[] altLogEvents = null)
{
receiver.MessageReceived += (_, msg) =>
{
this.messagesReceived.Add(msg);
this.countdown.Signal();
};
var log = logger.CreateLogger();
var logEvents = altLogEvents ?? Some.LogEvents(NumberOfEventsToSend);
foreach (var item in logEvents)
{
log.Write(item);
}
log.Dispose();
// Wait until the server has received all the messages we sent, or the timeout expires
await this.countdown.WaitAsync(TimeoutInSeconds, this.cts.Token);
if (expected > 0)
{
// The server should have received all 3 messages sent by the sink
this.messagesReceived.Count.ShouldBe(NumberOfEventsToSend);
this.messagesReceived.ShouldAllBe(x => logEvents.Any(e => x.EndsWith(e.MessageTemplate.Text)));
}
if (altLogEvents != null)
{
var source = altLogEvents.First().Properties.Keys.First();
this.messagesReceived.ShouldAllBe(x => logEvents.Any(e => x.Contains(source)));
}
this.cts.Cancel();
}
