1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/* ===================================================
* Copyright © 2013 the kamon project <http://kamon.io/>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ========================================================== */
package kamon.spray
import _root_.spray.httpx.RequestBuilding
import _root_.spray.routing.SimpleRoutingApp
import akka.testkit.{TestKitBase, TestProbe, TestKit}
import akka.actor.{ ActorRef, ActorSystem }
import org.scalatest.{ Matchers, WordSpecLike }
import scala.concurrent.Await
import scala.concurrent.duration._
import _root_.spray.client.pipelining._
import akka.util.Timeout
import kamon.trace.{ UowTrace }
import kamon.Kamon
import org.scalatest.concurrent.{ PatienceConfiguration, ScalaFutures }
import spray.http.HttpHeaders.RawHeader
import spray.http.{ HttpResponse, HttpRequest }
import spray.http.HttpHeaders.Host
import akka.io.{ Tcp, IO }
import spray.can.Http
import akka.io.Tcp.Bound
import kamon.metrics.{ TraceMetrics, Metrics }
import kamon.metrics.TraceMetrics.TraceMetricSnapshot
import kamon.metrics.Subscriptions.TickMetricSnapshot
class ServerRequestInstrumentationSpec extends TestKit(ActorSystem("spec")) with WordSpecLike with Matchers with RequestBuilding with ScalaFutures with PatienceConfiguration with TestServer {
"the spray server request tracing instrumentation" should {
"reply back with the same trace token header provided in the request" in {
val (connection, server) = buildServer(clientConnection)
val client = TestProbe()
client.send(connection, Get("/").withHeaders(RawHeader("X-Trace-Token", "reply-trace-token")))
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "ok"))
val response = client.expectMsgType[HttpResponse]
response.headers should contain(RawHeader("X-Trace-Token", "reply-trace-token"))
}
"reply back with a automatically assigned trace token if none was provided with the request" in {
val (connection, server) = buildServer(clientConnection)
val client = TestProbe()
client.send(connection, Get("/"))
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "ok"))
val response = client.expectMsgType[HttpResponse]
response.headers.filter(_.name == "X-Trace-Token").size should be(1)
}
"open and finish a trace during the lifetime of a request" in {
val (connection, server) = buildServer(clientConnection)
val client = TestProbe()
val metricListener = TestProbe()
Kamon(Metrics)(system).subscribe(TraceMetrics, "*", metricListener.ref, permanently = true)
client.send(connection, Get("/open-and-finish"))
server.expectMsgType[HttpRequest]
server.reply(HttpResponse(entity = "ok"))
client.expectMsgType[HttpResponse]
metricListener.fishForMessage() {
case snapshot @ TickMetricSnapshot(_, _, metrics) ⇒ metrics.keys.exists(_.name.contains("open-and-finish"))
case other ⇒ false
}
}
}
}
trait TestServer {
self: TestKitBase ⇒
def buildServer(clientBuilder: Http.Bound => ActorRef): (ActorRef, TestProbe) = {
val serverHandler = TestProbe()
IO(Http).tell(Http.Bind(listener = serverHandler.ref, interface = "127.0.0.1", port = 0), serverHandler.ref)
val bound = serverHandler.expectMsgType[Bound]
val client = clientBuilder(bound)
serverHandler.expectMsgType[Http.Connected]
serverHandler.reply(Http.Register(serverHandler.ref))
(client, serverHandler)
}
def clientConnection(connectionInfo: Http.Bound): ActorRef = {
val probe = TestProbe()
probe.send(IO(Http), Http.Connect(connectionInfo.localAddress.getHostName, connectionInfo.localAddress.getPort))
probe.expectMsgType[Http.Connected]
probe.sender
}
def httpHostConnector(connectionInfo: Http.Bound): ActorRef = {
val probe = TestProbe()
probe.send(IO(Http), Http.HostConnectorSetup(connectionInfo.localAddress.getHostName, connectionInfo.localAddress.getPort))
probe.expectMsgType[Http.HostConnectorInfo].hostConnector
}
}
|
