在 midje 中通过背景重用设置和拆卸

发布于 2025-01-05 03:15:50 字数 545 浏览 4 评论 0原文

我有许多 midje 事实，它们的设置/拆卸几乎完全相同，但不完全相同。

(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 "
    ; ...
  ))

我想将背景包装成可重用且最好可参数化的东西，以便我可以重用它们，但这样做遇到困难。 Midje 告诉我除上述以外的任何内容都不是预期的背景形式。

原文

I have a number of midje facts that have setup/teardowns that are almost, but not quite, entirely the same.

(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 "
    ; ...
  ))

I would like to wrap the backgrounds into something reusable and preferably paramterizable so I can reuse them, but having trouble doing so. Midje tells me anything other than the above is not the expected background form.

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╰つ倒转 2025-01-12 03:15:50

Midje 没有能力执行您内置的要求。如果您愿意，请考虑将其添加为此处的问题：
https://github.com/marick /Midje/issues?sort=updated&direction=desc&state=open&page=1

解决方案是创建您自己的宏来执行此操作。（未经测试）

(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))

Midje does not have the ability to do what you ask built into it. If you would like this, consider adding it as an issue here:
https://github.com/marick/Midje/issues?sort=updated&direction=desc&state=open&page=1

A solution is to create your own macro to do this. (untested)

(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))

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