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package kamon.spray
import akka.testkit.TestProbe
import com.typesafe.config.ConfigFactory
import kamon.testkit.BaseKamonSpec
import org.scalatest.concurrent.{ PatienceConfiguration, ScalaFutures }
import spray.http.{ StatusCodes, HttpResponse, HttpRequest }
import spray.httpx.RequestBuilding
class SprayServerMetricsSpec extends BaseKamonSpec("spray-server-metrics-spec") with RequestBuilding with ScalaFutures
with PatienceConfiguration with TestServer {
override lazy val config =
ConfigFactory.parseString(
"""
|kamon.metric {
| tick-interval = 1 hour
|}
|
|akka.loggers = ["akka.event.slf4j.Slf4jLogger"]
""".stripMargin)
"the Spray Server metrics instrumentation" should {
"record trace metrics for processed requests" in {
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 = takeSnapshotOf("GET: /record-trace-metrics", "trace")
snapshot.histogram("elapsed-time").get.numberOfMeasurements should be(15)
}
"record http server metrics for all the requests" in {
val (connection, server) = buildClientConnectionAndServer
val client = TestProbe()
// Erase metrics recorder from previous tests.
takeSnapshotOf("spray-server", "http-server")
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 = takeSnapshotOf("spray-server", "http-server")
snapshot.counter("GET: /record-http-metrics_200").get.count should be(10)
snapshot.counter("GET: /record-http-metrics_400").get.count should be(5)
snapshot.counter("200").get.count should be(10)
snapshot.counter("400").get.count should be(5)
}
}
}
|
