unit-testing - clojure.test/are 与 clojure.test/testing

Question

在 clojure.test 中有一个允许同时测试多个设备的宏: are .

在 clojure.test 中，可以结合 are宏与 testing ?

IE。就像是:

(are [scenario expected input]
  (testing scenario
    (= expected (my-fn input)))
    "scenario 1 - replaces -out by -in" "abc-out" "abc-in")

Answer 1

这是不可能的 are在 clojure.test..

我调整了 Stuart Sierra 的 are 支持testing的场景和失败消息如下:

(defmacro my-are
  [scenario fail-msg argv expr & args]
  (if (or
       (and (empty? argv) (empty? args))
       (and (pos? (count argv))
            (pos? (count args))
            (zero? (mod (count args) (count argv)))))
    `(testing ~scenario
       (clojure.template/do-template ~argv (is ~expr ~fail-msg) ~@args))
    (throw (IllegalArgumentException. "The number of args doesn't match are's argv."))))

现在测试被包裹在 testing 中添加了场景和失败消息。

这个宏可以这样使用:

(deftest my-test
  (my-are "Scenario 1: testing arithmetic" "Testing my stuff failed" 
          [x y] (= x y)
          2 (- 4 1)
          4 (* 2 2)
          5 (/ 10 2)))

这将导致:

Test Summary

Tested 1 namespaces
Ran 3 assertions, in 1 test functions
1 failures


Results
1 non-passing tests:

Fail in my-test
Scenario 1: testing arithmetic
Testing my stuff failed
expected: (= 2 (- 4 1))
actual: (not (= 2 3))

您可以看到执行了三个断言，失败消息(“测试我的东西失败)显示为失败的测试，并且场景消息(“场景 1:测试算法”)是可见的。