I'm using the scala IDE for development. I have a few actors which I'm testing out. I wrote one scala test suite with the following definition and didn't have any problems:
import org.scalatest._
import akka.testkit._
import akka.actor.ActorSystem
import org.scalatest.BeforeAndAfterAll
import org.scalatest._
import scala.concurrent.duration._
import akka.actor.Props
import filters._
class ReaderSourceTest( _system: ActorSystem ) extends TestKit( _system ) with FunSuiteLike with BeforeAndAfterAll with ImplicitSender {
import ReaderSource._
//Must have a zero argument constructor
def this() = this( ActorSystem( "ReaderSourceSuite" ) )
override def afterAll = TestKit.shutdownActorSystem( system )
test( "Reader should be alive as an actor" ) {
val reader = system.actorOf( Props( classOf[ ReaderSource ], "dummy/file/name" ), "tstReaderA" )
reader ! Ping( "Hello" )
expectMsg( Pong( "Hello" ) )
}
}
I then created another test file to test another actor which goes like this:
import socketclient._
import org.scalatest._
import akka.testkit._
import akka.actor.ActorSystem
import org.scalatest.BeforeAndAfterAll
import scala.concurrent.duration._
import akka.actor.Props
import org.scalatest.fixture.FunSuiteLike
import java.net.InetAddress
import org.kdawg.CommProtocol.CommMessages._
import org.kdawg.CommProtocol.CommMessages
class NetworkTest( _system: ActorSystem ) extends TestKit( _system ) with FunSuiteLike with BeforeAndAfterAll with ImplicitSender
{
import NetworkTalker._
def this() = this( ActorSystem( "NetworkTalkerTest") )
override def afterAll = TestKit.shutdownActorSystem( system )
test( "Can Send a Packet" )
{
val net = system.actorOf( NetworkTalker.props("10.1.0.5", 31000), "TestA" )
val pktBuilder = CommMessage.newBuilder
pktBuilder.setType( MessageType.STATUS_REQUEST )
pktBuilder.setStatusRequest( CommProtocol.CommandsProtos.StatusRequest.newBuilder() )
val pkt = pktBuilder.build
net ! PktSend(1, pkt)
expectMsg( PktSent(1) )
}
}
I keep getting the following error on the last line of the above class
Multiple markers at this line
- type mismatch; found : org.kdawg.socketclient.NetworkTalker.PktSent required: NetworkTalkerTest.this.FixtureParam =>
Any
- type mismatch; found : org.kdawg.socketclient.NetworkTalker.PktSent required: NetworkTalkerTest.this.FixtureParam =>
Can anyone help me figure this out ?
Changing imports from
import org.scalatest.fixture.FunSuiteLike
to
import org.scalatest.FunSuiteLike
worked
Related
Basically I trying to get data from database using akka http. if i pass (EmployeeRepo.findAll()) directly in api then it show all data but while using actor it shows cast error....
here problem for data fetching only please solve it
this is my EmployeeRepo-----------------------------------
package org.repo
import org.data.Employee
import org.db.DbConfig
import org.mongodb.scala.MongoCollection
import org.utils.JsonUtils
import org.mongodb.scala.bson.conversions.Bson
import org.mongodb.scala.model.Filters.equal
import org.mongodb.scala.model.FindOneAndUpdateOptions
import org.mongodb.scala.model.Updates.{combine, set}
import scala.concurrent.Future
object EmployeeRepo extends JsonUtils{
private val employeeDoc:MongoCollection[Employee]=DbConfig.employees
def createCollection()={
DbConfig.database.createCollection("employee").subscribe(
(result)=>println(s"$result"),
e=>println(e.getLocalizedMessage),
()=>println("complete")
)
}
def insertData(emp:Employee)={
employeeDoc.insertOne(emp).toFuture()
}
def findAll()= employeeDoc.find().toFuture()
def update(emp:Employee,id:String)=
employeeDoc
.findOneAndUpdate(equal("_id", id),
setBsonValue(emp),
FindOneAndUpdateOptions().upsert(true)).toFuture()
def delete(id:String)=
employeeDoc.deleteOne(equal("_id",id)).toFuture()
private def setBsonValue(emp:Employee)={
combine(
set("name",emp.name),
set("dateOfBirth",emp.dateOfBirth)
)
}
}
============EMployeeService------------
package org.service
import java.time.LocalDate
import java.time.format.DateTimeFormatter
import java.util.UUID
import akka.NotUsed
import akka.actor.ActorSystem
import akka.stream.ActorMaterializer
import akka.stream.scaladsl.Source
import org.data.Employee
import org.domain.EmployeeRequest
import org.repo.EmployeeRepo
import scala.concurrent.Future
class EmployeeService {
implicit val system=ActorSystem("Employeee")
implicit val materializer=ActorMaterializer
import system.dispatcher
def saveEmployeeData= (employeeRequest:EmployeeRequest) => {
val employeeDoc:Employee=employeeMapperWithNewId(employeeRequest)
EmployeeRepo.insertData(employeeDoc)
}
def findAll={
EmployeeRepo.findAll()
}
def update(employeeRequest: EmployeeRequest,id:String)={
val employeeDoc=employeeMapperWithNewId(employeeRequest)
EmployeeRepo.update(emp = employeeDoc,id)
}
def delete(id:String)=EmployeeRepo.delete(id)
private def employeeMapperWithNewId(employee:EmployeeRequest)={
Employee(name=employee.name,dateOfBirth = LocalDate.parse(employee.dateOfBirth, DateTimeFormatter.ISO_DATE),
_id=UUID.randomUUID.toString)
}
}
-----------------EmployeeActor------
package org.actor
import akka.actor.{Actor, ActorLogging}
import org.actor.EmployeeActor.{Delete, Save, SearchAll, Update}
import org.data.Employee
import org.domain.EmployeeRequest
import org.service.EmployeeService
object EmployeeActor {
case class Save(emp: EmployeeRequest)
case object SearchAll
case class Update(emp: EmployeeRequest, id: String)
case class Delete(id: String)
}
class
EmployeeActor extends Actor with ActorLogging {
private val employeeService: EmployeeService = new EmployeeService()
override def receive: Receive = {
case Save(emp) =>
log.info(s"recevied msg saved with employee :$emp")
sender() ! employeeService.saveEmployeeData(emp)
case SearchAll =>
log.info("received msg find ALL")
sender() ! employeeService.findAll
case Update(emp, id) =>
log.info(s"received update msg for id $id and employee $emp")
sender() ! employeeService.update(emp, id)
case Delete(id) =>
log.info(s"received msg for deleting employee of id $id")
sender() ! employeeService.delete(id)
case _ =>
log.debug("Unhandled msg")
}
}
---------------EmployeeRoute----
package org
import akka.actor.{ActorSystem, Props}
import akka.http.scaladsl.model.{ContentTypes, HttpEntity, StatusCodes}
import akka.stream.ActorMaterializer
import org.actor.EmployeeActor
import org.utils.{JsonUtils, TimeUtils}
import akka.http.scaladsl.server.Directives._
import akka.{NotUsed, util}
import akka.util.{ByteString, Timeout}
import org.data.Employee
import org.domain.EmployeeRequest
import akka.pattern.{Patterns, ask}
import akka.stream.scaladsl.Source
import org.actor.EmployeeActor.{Delete, Save, SearchAll, Update}
import org.service.EmployeeService
import scala.concurrent.duration._
import spray.json._
import scala.concurrent.{Await, Future}
class EmployeeRoute extends JsonUtils{
implicit val system=ActorSystem("Employee")
implicit val materializer=ActorMaterializer
import system.dispatcher
val actor=system.actorOf(Props[EmployeeActor],"employeeActor")
val employeeService=new EmployeeService()
implicit val timeOut=Timeout(5.seconds)
val getRoute={
pathPrefix("employee"){
(pathEndOrSingleSlash & get){
complete((actor ? SearchAll).mapTo[Seq[EmployeeRequest]])
}~
( path("update") & put & parameter("id".as[String])){id=>
entity(as[EmployeeRequest]){employee=>
complete((actor ? Update(employee,id)).map(_=>StatusCodes.OK))
}
}~
post{
entity(as[EmployeeRequest]) { employee =>
complete((actor ? Save(employee)).map(_ => StatusCodes.OK))
}
}~
delete{
(path(Segment) |parameter("id".as[String])){id=>
complete((actor ? Delete(id)).map(_=>StatusCodes.OK))
}
}
}
}
}
=================Error===============
[ERROR] [09/09/2020 19:46:48.551] [web-app-akka.actor.default-dispatcher-4] [akka.actor.ActorSystemImpl(web-app)] Error during processing of request: 'Cannot cast scala.concurrent.impl.Promise$Transformation to scala.collection.immutable.Seq'. Completing with 500 Internal Server Error response. To change default exception handling behavior, provide a custom ExceptionHandler.
java.lang.ClassCastException: Cannot cast scala.concurrent.impl.Promise$Transformation to scala.collection.immutable.Seq
at java.base/java.lang.Class.cast(Class.java:3734)
at scala.concurrent.Future.$anonfun$mapTo$1(Future.scala:464)
at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:430)
at scala.concurrent.ExecutionContext$parasitic$.execute(ExecutionContext.scala:164)
at scala.concurrent.impl.Promise$Transformation.submitWithValue(Promise.scala:392)
at scala.concurrent.impl.Promise$DefaultPromise.submitWithValue(Promise.scala:299)
at scala.concurrent.impl.Promise$DefaultPromise.tryComplete0(Promise.scala:249)
at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:242)
at akka.pattern.PromiseActorRef.$bang(AskSupport.scala:615)
at org.actor.EmployeeActor$$anonfun$receive$1.applyOrElse(EmployeeActor.scala:32)
at akka.actor.Actor.aroundReceive(Actor.scala:537)
at akka.actor.Actor.aroundReceive$(Actor.scala:535)
at org.actor.EmployeeActor.aroundReceive(EmployeeActor.scala:22)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:577)
at akka.actor.ActorCell.invoke(ActorCell.scala:547)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:270)
at akka.dispatch.Mailbox.run(Mailbox.scala:231)
at akka.dispatch.Mailbox.exec(Mailbox.scala:243)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
please help me out..
You analyzed almost everything. EmployeeRepo.findAll is your problem. You should not use Futures in akka actors. pipeTo should be used instead.
Please try to update EmployeeActor
case SearchAll =>
log.info("received msg find ALL")
employeeService.findAll.pipeTo(sender())
I'm using a Silhouette v4.0 library with play framework 2.5.
And have been trying to write test code using play specs2.
But, I get the following error with my test class as below.
Error Message
[error] could not find implicit value for parameter env: com.mohiva.play.silhouette.api.Environment[utils.auth.DefaultEnv]
.withAuthenticator[DefaultEnv](identity.loginInfo)
^
Here's the test class
package controllers
import com.google.inject.AbstractModule
import org.joda.time.DateTime
import org.specs2.specification.Scope
import org.specs2.matcher._
import org.specs2.mock._
import play.api.test._
import play.api.libs.json._
import play.api.libs.json.Json
import play.api.libs.json.Reads._
import play.api.libs.functional.syntax._
import play.api.libs.concurrent.Execution.Implicits._
import play.api.libs.mailer.{ MailerClient, Email }
import play.api.inject.guice.GuiceApplicationBuilder
import play.api.inject.bind
import com.mohiva.play.silhouette.test._
import com.mohiva.play.silhouette.api._
import com.mohiva.play.silhouette.api.repositories.AuthInfoRepository
import com.mohiva.play.silhouette.api.util._
import com.mohiva.play.silhouette.impl.providers._
import net.codingwell.scalaguice.ScalaModule
import utils.auth.DefaultEnv
class TestControllerSpec extends PlaySpecification with Mockito {
"case" in new Context {
new WithApplication(application) {
val request = FakeRequest(POST, "/api/test")
.withAuthenticator[DefaultEnv](identity.loginInfo) // <-
val result = route(app, request).get
status(result) must be equalTo OK
}
}
trait Context extends Scope {
val identity = User(
loginInfo = LoginInfo(..)
..
)
implicit val env = FakeEnvironment[DefaultEnv](Seq(identity.loginInfo -> identity))
class FakeModule extends AbstractModule with ScalaModule {
def configure() = {
bind[Environment[DefaultEnv]].toInstance(env)
}
}
lazy val application = new GuiceApplicationBuilder()
.overrides(new FakeModule)
.build
}
}
There are some other test classes similar to this class are properly able to compile and execute.
It's kind of implicit problem with scope..
Therefore, I tried to import all the same as another test class which's able to compile properly. But, still unable to compile.
Missing some import?
As the compiler states, you're missing an implicit value. Use the following, which is modeled after one of Silhouette's specs:
class TestControllerSpec extends PlaySpecification with Mockito {
"the POST request" should {
"return an OK response" in new Context {
new WithApplication(application) {
val identity = User(LoginInfo(...))
implicit val env = FakeEnvironment[DefaultEnv](Seq(identity.loginInfo -> identity))
val request = FakeRequest(POST, "/api/test")
.withAuthenticator(identity.loginInfo)
val result = route(app, request).get
status(result) must be equalTo OK
}
}
}
trait Context extends Scope {
...
}
}
I am trying to replicate the basic example proposed in the Integrating with Akka, Play 2.4 for Scala doc. But I have difficulties in placing the final pieces together...
I have defined the actor (see paragraph Writing actors) at app/actors/HelloActor.scala with the following code:
package actors
import akka.actor._
object HelloActor {
def props = Props[HelloActor]
case class SayHello(name: String)
}
class HelloActor extends Actor {
import HelloActor._
def receive = {
case SayHello(name: String) =>
sender() ! "Hello, " + name
}
}
Then (see Creating and using actors) I suppose I should create a controller at app/controllers/Hello.scala with something like:
package controllers
import play.api.mvc._
import akka.actor._
import javax.inject._
import actors.HelloActor
#Singleton
class Hello #Inject() (system: ActorSystem) extends Controller {
val helloActor = system.actorOf(HelloActor.props, "hello-actor")
...
}
The question: where and how I utilize the code in the following paragraph Asking things of actors to have a working solution? I have tried to add it to the above Hello.scala controller but without success.
import play.api.libs.concurrent.Execution.Implicits.defaultContext
import scala.concurrent.duration._
import akka.pattern.ask
implicit val timeout = 5.seconds
def sayHello(name: String) = Action.async {
(helloActor ? SayHello(name)).mapTo[String].map { message =>
Ok(message)
}
}
Found the solution, I had some problems with defining the implicit timeout, this is the working controller:
package controllers
import play.api.mvc._
import akka.actor._
import javax.inject._
import actors.HelloActor
import actors.HelloActor.SayHello
import play.api.libs.concurrent.Execution.Implicits.defaultContext
import scala.concurrent.duration._
import akka.pattern.ask
import akka.util.Timeout
#Singleton
class Hello #Inject() (system: ActorSystem) extends Controller {
val helloActor = system.actorOf(HelloActor.props, "hello-actor")
implicit val timeout: Timeout = 5.seconds
def sayHello(name: String) = Action.async {
(helloActor ? SayHello(name)).mapTo[String].map { message ⇒
Ok(message)
}
}
}
Plus I added the following route in app/conf/routes:
# Actor test
GET /hello/:name controllers.Hello.sayHello(name)
I have the following spec2 test
import akka.testkit._
import akka.actor.ActorSystem
import com.github.nfldb.config.{NflDbApiActorSystemConfig, NflDbApiDbConfigTest}
import org.scalatest.MustMatchers
import org.specs2.mutable.Specification
import spray.testkit.Specs2RouteTest
import spray.routing.HttpService
import spray.http.StatusCodes._
import spray.json.DefaultJsonProtocol._
import spray.httpx.SprayJsonSupport._
import concurrent.duration._
/**
* Created by chris on 8/25/15.
*/
class NflPlayerScoringSvcTest extends Specification with Specs2RouteTest with NflPlayerScoringService
with NflDbApiDbConfigTest with NflDbApiActorSystemConfig {
import PlayerScoreProtocol.playerScoreProtocol
implicit def actorRefFactory = actorSystem
implicit def default(implicit system: ActorSystem) = RouteTestTimeout(new DurationInt(5).second.dilated(system))
"NflPlayerScoringSvc" should {
"return hello" in {
Get("/hello") ~> nflPlayerScoringServiceRoutes ~> check {
responseAs[String] must contain("Say hello")
}
}
"calculate a player's score for a given week" in {
import PlayerScoreProtocol.playerScoreProtocol
Get("/playerScore?playerId=00-0031237&gsisId=2015081551") ~> nflPlayerScoringServiceRoutes ~> check {
val playerScore : DfsNflScoringEngineComponent.PlayerScore = responseAs[DfsNflScoringEngineComponent.PlayerScore]
println(playerScore.playerId == "00-0031237") //evaluates to true
playerScore.playerId must be ("00-0031237")
}
}
}
}
As you can see in my comment, my println statement asking for the equivalence of playerScore.playerId == "00-0031237 evalutes to true. However on the next line, my test fails saying that
[error] '00-0031237' is not the same as '00-0031237' (NflPlayerScoringSvcTest.scala:37)
How is this happening?
Did you tried this:
playerScore.playerId must beEqualTo("00-0031237")
Pretty new to scala and play and I have been assigned a task to test someone else app,which is running fine btw.Please check if my tests are right and what is the error.
This is employeeEntry.scala file in models
package models
import models.database.Employee
import play.api.db.slick.Config.driver.simple._
import play.api.db.slick._
import play.api.Play.current
case class EmployeeEntry(eid :Int, ename: String, eadd: String, emob: String)
object Employee {
val DBemp = TableQuery[Employee]
def savedat(value: EmployeeEntry):Long = {
DB.withSession { implicit session =>
DBemp+=EmployeeEntry(eid=value.eid,ename=value.ename,eadd=value.eadd,emob=value.emob)
}}
/*val query = for (c <- Employee) yield c.ename
val result = DB.withSession {
implicit session =>
query.list // <- takes session implicitly
}*/
//val query = for (c <- Employee) yield c.ename
def getPersonList: List[EmployeeEntry] = DB.withSession { implicit session => DBemp.list }
def Update: Int = DB.withSession { implicit session =>
(DBemp filter (_.eid === 1) map (s => (s.ename,s.eadd))) update ("test","khair")}
def delet :Int =DB.withSession {
implicit session => (DBemp filter (_.eid === 1)).delete
}
}
And this is file Employee.scala in models/database
package models.database
import models._
import models.EmployeeEntry
import play.api.db.slick.Config.driver.simple._
import scala.slick.lifted._
class Employee(tag:Tag) extends Table[EmployeeEntry](tag,"employee")
{
//val a = "hello"
def eid = column[Int]("eid", O.PrimaryKey)
def ename = column[String]("name", O.DBType("VARCHAR(50)"))
def emob = column[String]("emob",O.DBType("VARCHAR(10)"))
def eadd =column[String]("eadd",O.DBType("VARCHAR(100)"))
def * = (eid, ename, emob, eadd) <> (EmployeeEntry.tupled, EmployeeEntry.unapply)
}
Finally this is my test I am running,which is failing :
import play.api.db.slick.Config.driver.simple._
import play.api.db.slick._
import play.api.Play.current
import org.scalatest.FunSpec
import org.scalatest.matchers.ShouldMatchers
import models.database.Employee
import scala.slick.lifted._
import models._
import models.EmployeeEntry
//import scala.slick.driver.H2Driver.simple._
class databasetest extends FunSpec with ShouldMatchers{
describe("this is to check database layer"){
it("can save a row"){
val a = EmployeeEntry(1006,"udit","schd","90909090")
Employee.savedat(a) should be (1)
}
it("getpersonlist"){
Employee.getPersonList.size should be (1)
}
}
}
The test is failing and error is
java.lang.RuntimeException: There is no started application
at scala.sys.package$.error(package.scala:27)
at play.api.Play$$anonfun$current$1.apply(Play.scala:71)
at play.api.Play$$anonfun$current$1.apply(Play.scala:71)
at scala.Option.getOrElse(Option.scala:120)
at play.api.Play$.current(Play.scala:71)
at models.Employee$.getPersonList(EmployeeEntry.scala:27)
at databasetest$$anonfun$1$$anonfun$apply$mcV$sp$2.apply$mcV$sp(databasetest.scala:39)
at databasetest$$anonfun$1$$anonfun$apply$mcV$sp$2.apply(databasetest.scala:39)
at databasetest$$anonfun$1$$anonfun$apply$mcV$sp$2.apply(databasetest.scala:39)
at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)
By default play provides spec2 testing framework.so no need to add scalatest framework for unit testing.For database access layer testing required a connection with database so start a fake application.(this is not running code, just an idea to write unit test)
for more detail take a look play doc : https://www.playframework.com/documentation/2.3.x/ScalaFunctionalTestingWithSpecs2
import org.specs2.mutable.Specification
import models.database.Employee
import models._
import models.EmployeeEntry
import play.api.test.FakeApplication
import play.api.test.Helpers.running
import play.api.Play.current
class databasetest extends Specification {
"database layer" should {
"save a row" in {
running(FakeApplication()) {
val a = EmployeeEntry(1006,"udit","schd","90909090")
Employee.savedat(a) must be equalTo (1)
}
}
"get list" in {
running(FakeApplication()) {
Employee.getPersonList.size must be equalTo (1)
}
}
}