val auth_test =
   exec(http("Login")
     .post("/").headers(header_0)
     .basicAuth("""email""", """pass""")
  // .formParam("email", "email")
  // .formParam("pass", "pass")
  // .formParam("", "Connexion")
     .check(status.is(200),currentLocation.is("https://www.facebook.com/"))
).pause(2)

 //doesn't work
  val auth_friend_Zone =
      exec(http("Friend_spaces").get("/profil").headers(header_0)
     .check(css("table.uiGrid._51mz tbody tr td div a", "href").findAll
     .saveAs("url_Friend"))
     .check(status.not(404), status.is(200), status.not(500)))
     .exec((session: Session) => {
    val urlFriends = session("url_Friend")
      .as[Seq[String]]
     val rnd_ex = randomPage.nextInt(urlFriends.length)
     session.set("randomFriendUrl", urlFriends(rnd_ex))
  })
  .exec(http("${randomFriendUrl}").get("${randomFriendUrl}"))
.pause(2)
 val auth = scenario("Authentification").exec(
 auth_test,
 auth_friend_Zone

  //    auth_profil_test
  )
  setUp(auth.inject(atOnceUsers(5))).protocols(httpConf)
 .assertions(
   global.responseTime.max.lt(1000),
  global.successfulRequests.percent.gt(97))
}