我正在使用Speclj为Clojure应用编写测试。我习惯在BDD做这样的事情:
context "some context"
stub my-function :return true
it "has behavior one"
should true my-function
it "has behavior two"
should_not false my-function
但在Speclj中,我似乎无法找到如何在特征之间共享存根的示例,因此我目前无法编写这样的代码:
(describe "this"
(context "that"
(it "accepts nil"
(with-redefs [called-fn (constantly nil)]
(should= nil (my-fn nil)))))
(it "accepts 1"
(with-redefs [called-fn (constantly nil)]
(should= 100 (my-fn 1))))))
(我知道这是一个有点人为的例子,可以说这些断言都可以归结为一个特征,但我们现在假设我有充分的理由来编写这样的代码。)
但是,我希望只需要将called-fn
存储一次,但是将其从it
移出会引发错误,因为真正的called-fn
会被调用而不是我的redef。
有没有办法在Speclj中重用redefs(或使用Speclj存根),这样我就不会卡在特征内部将它们全部推下去了?
答案 0 :(得分:4)
您可以使用around
宏来完成此任务。
以下是一个示例规范:
(ns sample.core-spec
(:require [speclj.core :refer :all]
[sample.core :refer :all]))
(describe "a test"
(it "returns output from fn-a"
(should= 1 (fn-b)))
(describe "using with-redef"
(around [it] (with-redefs [fn-a (fn [] 2)] (it)))
(it "returns the output from redefined function"
(should= 2 (fn-b)))))
来源:
(ns sample.core)
(defn fn-a []
1)
(defn fn-b []
(fn-a))