我试图在Haskell中进行一些单元测试,这基本上就是我在代码中所做的:
module Test where
import Test.HUnit
test = TestList [TestLabel "running all the tests!"
$ TestList [
. . . . .
]]
run = runTestTT tests 当我尝试用gchi编译它时,我会得到以下消息:
Could not find module ‘Test.HUnit’
Use -v to see a list of the files searched for.
Failed, modules loaded: none我如何使HUnit工作?
我使用的是GHCi版本7.8.3
谢谢
编辑:
我试着通过阴谋安装HUnit,答案是这样的,但是我得到了错误:
Could not find module ‘Test.HUnit’ Perhaps you haven't installed the "dyn" libraries for
package ‘HUnit-1.2.5.2’?
Use -v to see a list of the files searched for.然后我使用了命令:
cabal install base我收到了这样的信息:
Resolving dependencies...
All the requested packages are already installed:
base-4.7.0.1
Use --reinstall if you want to reinstall anyway.所以我使用了命令:
cabal install base -reinstall重新安装以防万一,我收到了这样的信息:
Resolving dependencies...
cabal: Could not resolve dependencies:
rejecting: base-4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0, 4.5.1.0, 4.5.0.0, 4.4.1.0,
4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1, 4.2.0.0, 4.1.0.0, 4.0.0.0 (only
already installed instances can be used)
rejecting: base-3.0.3.2 (conflict: base => base>=4.0 && <4.3)
rejecting: base-3.0.3.1 (conflict: base => base>=4.0 && <4.2)我该怎么办?
发布于 2014-11-02 14:32:52
结果,我错误地安装了两个版本的ghc (7.6.3和7.8.3),所以我删除了它们和阴谋,并重新安装了所有的东西。现在起作用了!
https://stackoverflow.com/questions/26688977
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