erip

import com.lightbend.lagom.scaladsl.testkit.ServiceTest._ 

private def withDefaultClient(testCode: (MyService) => Any): Unit = {
    withServer(ServiceTest.defaultSetup) { ctx =>
      new MyApplication(ctx) with LocalServiceLocator {
       // whatever your Application Cake should look like...
      }
    } { server =>
      // Client for your service
      val client = server.serviceClient.implement[MyService]

erip

import sbt.Keys._

lazy val commonSettings = Seq(
  name := "shading-issue",
  version := "0.1",
  scalaVersion in ThisBuild := "2.11.8"
)

lazy val `dummy` = (project in file("."))
    .settings(commonSettings: _*)