I'm using flycheck-joker in spacemacs and I'm very happy with what it provides.
However, one thing that bothers me quite a lot is that joker reports deftest and is as unresolved symbols.
Here's the minimal repro for me:

(ns myapp.util-test
  (:require [myapp.util :as u]
                 [clojure.test :refer :all]))

(deftest namespaced-map
  (testing "keys are namespaced"
    (let [unqualified-keys {:name "Juraj" :age 32}
          qualified-keys #:user{:name "Juraj" :age 32}]
      (is (= qualified-keys unqualified-keys)))))

Here's the screenshot:

I realized that this might be because deftest and is are macros so I tried to add following to ~/.joker (inspired by https://github.com/candid82/joker#reducing-false-positives):

{:known-macros [clojure.test/deftest clojure.test/testing clojure.test/is clojure.test/are]}

No success, however.

Any ideas why that happens?
Is it something that should work out of the box?