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package kamon.spray
import akka.actor.ActorSystem
import akka.testkit.{ TestProbe, TestKitBase }
import com.typesafe.config.ConfigFactory
import kamon.Kamon
import kamon.http.HttpServerMetrics
import kamon.metric._
import org.scalatest.concurrent.{ PatienceConfiguration, ScalaFutures }
import org.scalatest.{ Matchers, WordSpecLike }
import spray.http.{ StatusCodes, HttpResponse, HttpRequest }
import spray.httpx.RequestBuilding
class SprayServerMetricsSpec extends TestKitBase with WordSpecLike with Matchers with RequestBuilding
with ScalaFutures with PatienceConfiguration with TestServer {
val collectionContext = CollectionContext(100)
implicit lazy val system: ActorSystem = ActorSystem("spray-server-metrics-spec", ConfigFactory.parseString(
"""
|akka {
| loglevel = ERROR
|}
|
|kamon {
| metrics {
| tick-interval = 1 hour
|
| filters = [
| {
| trace {
| includes = [ "*" ]
| excludes = []
| }
| }
| ]
| }
|}
""".stripMargin))
"the Spray Server metrics instrumentation" should {
"record trace metrics for requests received" in {
Kamon(Metrics)(system).register(TraceMetrics("GET: /record-trace-metrics"), TraceMetrics.Factory).get.collect(collectionContext)
val (connection, server) = buildClientConnectionAndServer
val client = TestProbe()
for (repetition ← 1 to 10) {
client.send(connection, Get("/record-trace-metrics"))
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "ok"))
client.expectMsgType[HttpResponse]
}
for (repetition ← 1 to 5) {
client.send(connection, Get("/record-trace-metrics"))
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "bad-request", status = StatusCodes.BadRequest))
client.expectMsgType[HttpResponse]
}
val snapshot = Kamon(Metrics)(system).register(TraceMetrics("GET: /record-trace-metrics"), TraceMetrics.Factory).get.collect(collectionContext)
snapshot.elapsedTime.numberOfMeasurements should be(15)
}
"record http serve metrics for all the requests" in {
Kamon(Metrics)(system).register(HttpServerMetrics, HttpServerMetrics.Factory).get.collect(collectionContext)
val (connection, server) = buildClientConnectionAndServer
val client = TestProbe()
for (repetition ← 1 to 10) {
client.send(connection, Get("/record-http-metrics"))
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "ok"))
client.expectMsgType[HttpResponse]
}
for (repetition ← 1 to 5) {
client.send(connection, Get("/record-http-metrics"))
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "bad-request", status = StatusCodes.BadRequest))
client.expectMsgType[HttpResponse]
}
val snapshot = Kamon(Metrics)(system).register(HttpServerMetrics, HttpServerMetrics.Factory).get.collect(collectionContext)
snapshot.countsPerTraceAndStatusCode("GET: /record-http-metrics")("200").count should be(10)
snapshot.countsPerTraceAndStatusCode("GET: /record-http-metrics")("400").count should be(5)
snapshot.countsPerStatusCode("200").count should be(10)
snapshot.countsPerStatusCode("400").count should be(5)
}
}
}
|
