组织 Haskell 测试 [英] Organizing Haskell Tests

问题描述

所以我正在尝试遵循 建议的 Haskell 项目结构，但我遇到了一些问题组织我的测试.

So I'm trying to follow the suggested structure of a Haskell project, and I'm having a couple problems organizing my tests.

为了简单起见，让我们从:

For simplicity, let's start with:

src/Clue/Cards.hs # defines Clue.Cards module
testsuite/tests/Clue/Cards.hs # tests Clue.Cards module

一方面，我不确定在包含测试代码的 testsuite/tests/Clue/Cards.hs 中的模块该命名什么，另一方面，我不确定如何命名编译我的测试代码，以便我可以链接到我的源代码:

For one, I'm not sure what to name the module in testsuite/tests/Clue/Cards.hs that contains the test code, and for another, I'm no sure how to compile my test code so that I can link to my source:

% ghc -c testsuite/tests/Clue/Cards.hs -L src
testsuite/tests/Clue/Cards.hs:5:0:
    Failed to load interface for `Clue.Cards':
      Use -v to see a list of the files searched for.

推荐答案

我自己采用了 Snap Framework 的方法对于他们的测试套件，基本上可以归结为:

I use myself the approach taken by Snap Framework for their test-suites, which basically boils down to:

1. 使用测试框架，例如 haskell-test-framework 或 HTF

2. 通过将 .Tests 附加到包含 IUT 的模块名称来命名包含测试的模块，例如:

1. Use a test-framework such as haskell-test-framework or HTF

2. Name the modules containing tests by appending .Tests to the module-name containing the IUT, e.g.:

module Clue.Cards where ... -- module containing IUT

module Clue.Cards.Tests where ... -- module containing tests for IUT

通过使用单独的命名空间，您可以将测试放在单独的源文件夹 tests/ 中，然后您可以使用单独的 Cabal 构建目标(另请参见 cabal test-build-target 支持在最近的 Cabal 版本中)用于测试套件，其中在其 hs-source-dirs 设置中包含额外的源文件夹，例如:

By using separate namespaces, you can put your tests in a separate source-folder tests/, you can then use a separate Cabal build-target (see also cabal test-build-target support in recent Cabal versions) for the test-suite which includes the additional source folder in its hs-source-dirs setting, e.g.:

Executable clue
  hs-source-dirs: src
  ...

Executable clue-testsuite
  hs-source-dirs: src tests
  ...

这是有效的，因为您的 IUT 和测试套件中的模块之间不再存在命名空间冲突.

This works, since there's no namespace collision between the modules in your IUT and the test-suite anymore.

这篇关于组织 Haskell 测试的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！