Unit Tests for Products Routes Part 3

casereq @POST -> Root/ "products" => 
    req
        .as[Product]
        .flatMap { p =>
            for {
                cnt <- repo.saveProduct(p)
                res <- cnt match {
                    case 0 => NotFound()
                    case _ => InternalServerError()
                }
            } yield res
        }
        .handleErrorWith {
            case InvalidMessageBodyFailure(_, _) => BadRequest()
        }

val expected StatusCode = Status.BadRequest
s"return$expectedStatusCode"in{
    def service: HttpRoutes[IO] =
        Router("/" -> new ProductsRoutes(emptyRepository).routes)
    val payload = scala.util.Random.alphanumeric.take(256).mkString
    val response: IO[Response[IO]] = service.orNotFound.run(
        Request(method = Method.POST, uri = Uri.uri("/products"))
            .withEntity(payload.asJson.noSpaces)
    )
    val result = response.unsafeRunSync
    result.status must be(expectedStatusCode)
    result.body.compile.toVector.unsafeRunSync must be(empty)
}