concurrent_test.clj

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(ns clojure.core.async.concurrent-test
  (:require [clojure.test :refer :all]
            [clojure.core.async.impl.concurrent :as conc])
  (:import [java.util.concurrent ThreadFactory]))

(deftest test-counted-thread-factory
  (testing "Creates numbered threads"
    (let [^ThreadFactory factory (conc/counted-thread-factory "foo-%d" true)
          threads (repeatedly 3 #(.newThread factory (constantly nil)))]
      (is (= ["foo-1" "foo-2" "foo-3"] (map #(.getName ^Thread %) threads))))))