我将如何测试 IHP 我的 CanRoute 实例(漂亮 URL 的解析路由)?

How would I test IHP my CanRoute instance (parse route for beautiful URLs)?

如果您想在 IHP 应用程序中使用漂亮的 URL,您需要编写自己的 CanRoute 实例并解析路由字符串。

-- Web.Routes.hs

module Web.Routes where

import Generated.Types
import IHP.RouterPrelude
import Web.Types

instance CanRoute Co2ProducersController where
  parseRoute' = do
    string "/producers/"
    let co2ProducerById = do
          id <- parseId
          endOfInput
          pure ShowCo2ProducerAction {co2ProducerId = Just id, slug = Nothing}

        co2ProducerBySlug = do
          slug <- parseText
          pure ShowCo2ProducerAction {co2ProducerId = Nothing, slug = Just slug}

    co2ProducerBySlug <|> co2ProducerById

我将如何进行测试?我在这里看到了一个可以设置整个测试应用程序的示例:https://github.com/digitallyinduced/ihp/blob/2422bbdfa6165231e89b44c2e7d1c68b65f6b3b4/Test/RouterSupportSpec.hs

但我只想测试我是否正确解析路由,而不是发送请求和测试响应。

测试上述代码的简单方法是什么?

我们为自定义路由定义的 CanRouteparseRoute' 函数基本上只是返回一个 attoparsec 解析器。

我们可以使用 attoparsecs parseOnly 到 运行 带有提供的输入字符串的解析器。这是一个例子:

module Test.Web.RoutesSpec where

import Test.Hspec
import IHP.ControllerPrelude
import IHP.Test.Mocking
import qualified Data.Attoparsec.ByteString as Attoparsec
import Web.Types
import Web.FrontController

tests = beforeAll (mockContextNoDatabase WebApplication (pure ())) do
    describe "Web.Routes" do
        describe "DocumentationController" do
            it "should be available at /docs" $ withContext do
                "/docs/api-reference/0bca60db-571e-4cdd-b02a-8d5b9e7e6295" `shouldRouteTo` DocumentationAction { projectId = "0bca60db-571e-4cdd-b02a-8d5b9e7e6295" }

shouldRouteTo path action = (Attoparsec.parseOnly parseRoute' path) `shouldBe` (Right action)