What I expected from Rho routes

RhoServicePrioritiesSpec.scala

package org.http4s
package rho

import cats.effect.IO
import org.specs2.mutable.Specification



class RhoServicePrioritiesSpec extends Specification with RequestRunner {
  def construct(method: Method, s: String, h: Header*): Request[IO] =
    Request(method, Uri.fromString(s).right.getOrElse(sys.error("Failed.")), headers = Headers(h: _*))

  def Get(s: String, h: Header*): Request[IO] = construct(Method.GET, s, h:_*)

  val service = new RhoService[IO] {
    GET / "foo" / "bar" +? param[String]("barId") |>> {barId: String => Ok(s"route1: $barId") }

    GET / "foo" / 'fooId |>> {fooId: String => Ok(s"route2: $fooId") }
  }.toService()

  "RhoService" should {
    "prioritize first route" in {
      val request = Request[IO](Method.GET, Uri(path = "/foo/bar").withQueryParam("barId", "firstBar"))
      //this works
      checkOk(request) should_== "route1: firstBar"
    }

    "use 2nd route if 1st doesn't match" in {
      val request = Request[IO](Method.GET, Uri(path = "/foo/firstFoo"))
      //this works too
      checkOk(request) should_== "route2: firstFoo"
    }

    "return error when required parameters are missing" in {
      val request = Request[IO](Method.GET, Uri(path = "/foo/bar"))
      val responseOpt = service(request).value.unsafeRunSync()
      responseOpt should not be empty
      val response = responseOpt.get
      //Response body was: route2: bar
      getBody(response.body).pp("Response body was:")
      //and thid fails: 200 OK != 400 Bad Request
      response.status should_== Status.BadRequest
    }
  }
}