How to integrate ScalaTest (FlatSpec) with Play

PlayBrowserSpec.scala

import org.scalatest.BeforeAndAfterAll
import org.openqa.selenium.WebDriver
import org.openqa.selenium.htmlunit.HtmlUnitDriver
import org.scalatest.FlatSpec
import play.api.test.TestServer
import org.scalatest.Matchers
import play.api.test.Helpers
import org.scalatest.selenium.WebBrowser
import play.api.test.FakeApplication

trait PlayBrowserSpec extends FlatSpec with BeforeAndAfterAll with Matchers with WebBrowser{
  
  implicit val webDriver: WebDriver = new HtmlUnitDriver

  val host = s"http://localhost:${Helpers.testServerPort}"
  var app: FakeApplication = _
  var server: TestServer = _

  override def beforeAll() {
    app = FakeApplication()
    server = TestServer(port = Helpers.testServerPort)
    server.start
  }

  override def afterAll() {
    server.stop
    quit
  }  
  
}

ZExampleSpec.scala

class ZExampleSpec extends PlayBrowserSpec {

  "The home page" should "have the correct title" in {
    go to (host + "/")
    pageTitle should be("Welcome to Play")
  }

  it should "say 'ready' somewhere" in {
    go to (host + "/")
    pageSource should include("ready")
  }

}

Useful links:

• http://www.scalatest.org/user_guide/using_selenium
• http://www.scalatest.org/user_guide/using_matchers