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ifesdjeen/with-latch.clj

Last active December 21, 2015 18:19
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Testing with countdown latch
Raw
with-latch.clj
(ns my-test-ns
(:require [clojure.test :refer :all])
(:import [java.util.concurrent CountDownLatch TimeUnit])
(defmacro with-latch
[countdown-from & body]
`(let [latch# (CountDownLatch. ~countdown-from)
~'latch latch#]
~@body
(.await latch# 5 TimeUnit/SECONDS)
(is (= 0 (.getCount latch#)))))
;; Example usage:
(deftest with-latch-test
(with-latch 3
(.countDown latch)
(.countDown latch)
(.countDown latch)))
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