with-redefs不会重新定义我的函数 [英] with-redefs doesn't redefine my function

问题描述

我有一个测试：

(ns gui-proxy.handler-test
  (:require [clojure.test :refer :all]
            [ring.mock.request :as mock]
            [gui-proxy.handler :as handler]))

(deftest test-app
  (testing "not-found route"
        (with-redefs-fn [handler/log-request  (fn [type url] (str ""))]
          (let [response (handler/app (mock/request :get "/invalid"))]
            (is (= (:status response) 404))))))

以及正在测试的代码：

(ns gui-proxy.handler
  (:require [compojure.core :refer :all]
            [compojure.route :as route]
            [ring.middleware.defaults :refer [wrap-defaults site-defaults]]
            [clj-http.client :as client]
            [gui-proxy.db :as db]))

(defn log-request [type url]
    (db/insert-request-info type url))

(defn log-error []
    (log-request ":fail" "fail"))
    "gui-proxy - File not found")

(defroutes app-routes
    (route/not-found (log-error)))

所以，基本上我想停止对数据库命名空间的调用，但我最终upp在胖数据库exeception stacktrace .. 。

So, basically i'd like to stop the call to the database-namespace, but i end upp in a fat database exeception stacktrace...

有什么问题？

推荐答案

with-redefs-fn 获取绑定的映射，而不是向量。请注意，clojuredocs中的示例使用＃'读取器宏来引用Var，因此总结可以尝试

with-redefs-fn takes a map of bindings, not a vector. Note that the examples at clojuredocs use the #' reader macro to refer to the Var, so summing up you could try

(deftest test-app
  (testing "not-found route"
        (with-redefs-fn {#'handler/log-request  (fn [type url] (str ""))}
          (let [response (handler/app (mock/request :get "/invalid"))]
            (is (= (:status response) 404))))))

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