利用midje中的背景重用setup和teardown

Question

我有许多midje事实，它们的设置/拆卸几乎是相同的，但并不完全相同。

(against-background [(before :contents (setup!)) (before :contents (data)) (before :facts (set-access)) (after :contents (teardown!)]
  (facts "about this thing i am testing "
    ; ...
  ))

(against-background [(before :contents (setup!)) (before :contents (data)) (before :facts (set-other-access)) (after :contents (teardown!)]
  (facts "about this other thing i am testing "
    ; ...
  ))

我想把背景包装成一些可重用的东西，最好是可参数化的，这样我就可以重用它们，但这样做有困难。Midje告诉我，除了上述之外，任何其他内容都不是预期的背景形式。

Answer 1

Midje没有能力做你所要求的事情。如果您希望这样做，请考虑将其作为问题添加到此处：https://github.com/marick/Midje/issues?sort=updated&direction=desc&state=open&page=1

一种解决方案是创建您自己的宏来执行此操作。(未测试)

(defmacro against-my-background [docstring & body]
  `(against-background [(before :contents (setup!)) 
                        (before :contents (data)) 
                        (before :facts (set-access)) 
                        (after :contents (teardown!)]
     (facts ~docstring
       ~@body )))

;; usage
(against-my-background "about this thing i am testing"
  (fact (foo) => :bar)
  (fact (foo) =not=> :baz))