public async Task UdpUri_Counter_ReceivesValidStatsd(double value)
{
var port = (ushort)_rng.Next(1024, 65535);
var handler = new StatsdMetricHandler("127.0.0.1", port);
var utcNow = DateTime.UtcNow;
var reading = new MetricReading("test.metrics", MetricType.Counter, value, new Dictionary <string, string> {
["host"] = "test!"
}.ToImmutableDictionary(), utcNow);
var listenerTask = ReceiveStatsdOverUdpAsync(port, _output);
// expected format: {metric}:{value}|{unit}|#{tag},{tag}
// so for this counter: "test.metrics:1|c|#host:test!
handler.SerializeMetric(reading);
await handler.FlushAsync(
TimeSpan.Zero, 0, e => _output.WriteLine($"{e.BytesWritten} bytes written"), ex => _output.WriteLine(ex.ToString())
);
// make sure the data we received matches the statsd for the bytes we sent!
var actualBytes = await listenerTask;
var expectedBytes = ToStatsd(reading);
_output.WriteLine($"Actual:\t\t{string.Join(" ", actualBytes.Select(x => $"{x:x2}"))}");
_output.WriteLine($"Expected:\t{string.Join(" ", expectedBytes.Select(x => $"{x:x2}"))}");
Assert.Equal(expectedBytes, actualBytes);
}
public static IEnumerable <MetricReading> GenerateReadings(int count)
{
var utcNow = DateTime.UtcNow;
var readings = new MetricReading[count];
for (var i = 0; i < readings.Length; i++)
{
readings[i] = new MetricReading("test.metric_" + i, MetricType.Counter, string.Empty, i, new Dictionary <string, string>(), utcNow.AddSeconds(i));
}
return(readings);
}