创建测试套件时出错：“无法满足-package-id”

问题描述

我试图在我的.cabal配置中为我的项目创建一个测试套件 HaskSplit ：

   - 由cabal init生成的初始HaskSplit.cabal。更多
  - 文档，请参阅http://haskell.org/cabal/users-guide/ 
 
名称：HaskSplit 
版本：0.1.0.0 
简介：Haskell实施Shamir秘密共享计划
  - 描述：
许可证：MIT 
许可证文件：许可
作者：
维护者：
  - 版权：
类别：安全性
构建类型：简单
  - 额外源文件：
 cabal-version：> = 1.10 
 
可执行文件HaskSplit 
 main-is：Main.hs 
 default-language：Haskell2010 
  -  other-modules：
 other-extensions：TemplateHaskell，NoImplicitPrelude，RankNTypes，OverloadedStrings 
 build-depends：base> = 4.6&& < 4.7，
 resourcet> = 1.1&& < 1.2，
字节串> = 0.10&& < 0.11，
 conduit-extra> = 1.1&& < 1.2，
 vector> = 0.10&& < 0.11，
 conduit> = 1.1&& < 1.2，
管道组合器> = 0.2&& < 0.3，
单程可行> = 0.5&& < 0.6，
 safe> = 0.3&& < 0.4，
变压器> = 0.3&& < 0.4，
 filepath> = 1.3，
目录> = 1.2，
 Glob> = 0.7.4，
错误> = 1.4，
 optparse-applicative> = 0.8 
 hs-source-dirs：src 
 default-language：Haskell2010 
 ghc-options：-Wall -fno-warn-orphans 
 
测试套件测试
类型：exitcode-stdio-1.0 
 default-language：Haskell2010 
 hs-source-dirs：测试
 main-is：Test.hs 
 ghc-options：-Wall -fno-warn-orphans 
 build-depends：base == 4. *，
 QuickCheck> = 2.6&& < 2.7，
 test-framework-quickcheck2> = 0.3.0.3，
 HaskSplit 
  

查看示例测试套件设置，我注意到它们是指定他们自己的包作为构建依赖模块之一。因此，我也做了同样的事情，以便我的测试套件的 build-depends 列表保持简短。

然而，当我在命令行中尝试 cabal repl test：tests 时，我收到以下错误：

<$ p $ <命令行> ;:无法满足-package-id HaskSplit-0.1.0.0 -inplace


我不太确定我在这里错过了什么，任何人都可以帮助我？它在这里发生循环依赖吗？或者是否需要为build-depends创建我的包的库实例？

谢谢！

build-depends 部分只能包含库，而不能包含模块。我建议你添加一个库到你的cabal文件中。库的 exposed-modules 部分应列出您的测试（或库的任何其他用户）可能需要引用的所有模块。

作为创建库的替代方案，您可以简单地将需要的模块添加到测试套件部分的其他模块部分。如果你想包含很多模块，我认为库方法更好。

I'm attempting to create a test suite for my project, HaskSplit in my .cabal configuration:

-- Initial HaskSplit.cabal generated by cabal init.  For further 
-- documentation, see http://haskell.org/cabal/users-guide/

name:                HaskSplit
version:             0.1.0.0
synopsis:            Haskell Implementation of Shamir's Secret Sharing Scheme
-- description:         
license:             MIT
license-file:        LICENSE
author:              
maintainer:          
-- copyright:           
category:            Security
build-type:          Simple
-- extra-source-files:  
cabal-version:       >=1.10

executable HaskSplit
  main-is:             Main.hs
  default-language:    Haskell2010
  -- other-modules:       
  other-extensions:    TemplateHaskell, NoImplicitPrelude, RankNTypes, OverloadedStrings
  build-depends:       base >=4.6 && <4.7,
                       resourcet >=1.1 && <1.2,
                       bytestring >=0.10 && <0.11,
                       conduit-extra >=1.1 && <1.2,
                       vector >=0.10 && <0.11,
                       conduit >=1.1 && <1.2,
                       conduit-combinators >=0.2 && <0.3,
                       mono-traversable >=0.5 && <0.6,
                       safe >=0.3 && <0.4,
                       transformers >=0.3 && <0.4,
                       filepath >= 1.3,
                       directory >=1.2,
                       Glob >= 0.7.4,
                       errors >= 1.4,
                       optparse-applicative >= 0.8
  hs-source-dirs:      src
  default-language:    Haskell2010
  ghc-options:         -Wall -fno-warn-orphans

test-suite tests
  type:                exitcode-stdio-1.0
  default-language:    Haskell2010
  hs-source-dirs:      tests
  main-is:             Test.hs
  ghc-options:         -Wall -fno-warn-orphans
  build-depends:       base == 4.*,
                       QuickCheck >=2.6 && <2.7,
                       test-framework-quickcheck2 >= 0.3.0.3,
                       HaskSplit

Looking at an example test-suite setup here, I noticed that they're specifying their own package as one of the build-depends module. Therefore I did the same, so that I can keep my build-depends list for my test-suite short.

However when I try cabal repl test:tests in commandline, I'm getting the following error:

<command line>: cannot satisfy -package-id HaskSplit-0.1.0.0-inplace

I'm not too sure what I'm missing here, can anyone help me out? Is it cyclic dependencies happening around here? Or do I need to create a library instance of my package for the build-depends to work?

Thanks!

解决方案

The build-depends section can only contain libraries, not modules. I suggest you add a library to your cabal file. The exposed-modules section of the library should list all of the modules that your test (or any other user of the library) might need to reference.

As an alternative to creating a library, you could simply add the modules you need to the other-modules part of the test-suite section. If you want to include a lot of modules, though, I think the library approach is nicer.

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