如何在 Stack 中使用 HUnit
How to use HUnit in Stack
我有一个堆栈项目 stapro
和一个文件 app/Main.hs
module Main where
import Lib
main = putStrLn "This is main"
foo::Int ->Int
foo = (+1)
和一个文件test/Spec.hs
module Spec where
import Test.HUnit
import Main (foo)
main :: IO ()
main = putStrLn "Test suite not yet implemented"
testFoo :: Test
testFoo = TestCase $ assertEqual "Should return 2" 2 (foo 1)
但是当我尝试执行测试时
$ stack test
While constructing the BuildPlan the following exceptions were encountered:
-- While attempting to add dependency,
Could not find package Main in known packages
-- Failure when adding dependencies:
Main: needed (-any), stack configuration has no specified version
needed for package stapro-0.1.0.0
我的 .cabal 文件是
name: stapro
version: 0.1.0.0
...
build-type: Simple
-- extra-source-files:
cabal-version: >=1.10
library
hs-source-dirs: src
exposed-modules: Lib
build-depends: base >= 4.7 && < 5
default-language: Haskell2010
executable stapro-exe
hs-source-dirs: app
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends: base
, stapro
default-language: Haskell2010
test-suite stapro-test
type: exitcode-stdio-1.0
hs-source-dirs: test
main-is: Spec.hs
build-depends: base
, stapro
, HUnit
, Main
ghc-options: -threaded -rtsopts -with-rtsopts=-N
default-language: Haskell2010
...
您似乎在尝试依赖可执行文件(test-suite
部分 build-depends
中的 Main
),以便您可以在测试套件中对其进行测试。那行不通,事实上您根本无法真正测试您的可执行文件。
从 build-depends
中删除 Main
。将您要测试的所有代码移到您的库中。
我有一个堆栈项目 stapro
和一个文件 app/Main.hs
module Main where
import Lib
main = putStrLn "This is main"
foo::Int ->Int
foo = (+1)
和一个文件test/Spec.hs
module Spec where
import Test.HUnit
import Main (foo)
main :: IO ()
main = putStrLn "Test suite not yet implemented"
testFoo :: Test
testFoo = TestCase $ assertEqual "Should return 2" 2 (foo 1)
但是当我尝试执行测试时
$ stack test
While constructing the BuildPlan the following exceptions were encountered:
-- While attempting to add dependency,
Could not find package Main in known packages
-- Failure when adding dependencies:
Main: needed (-any), stack configuration has no specified version
needed for package stapro-0.1.0.0
我的 .cabal 文件是
name: stapro
version: 0.1.0.0
...
build-type: Simple
-- extra-source-files:
cabal-version: >=1.10
library
hs-source-dirs: src
exposed-modules: Lib
build-depends: base >= 4.7 && < 5
default-language: Haskell2010
executable stapro-exe
hs-source-dirs: app
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends: base
, stapro
default-language: Haskell2010
test-suite stapro-test
type: exitcode-stdio-1.0
hs-source-dirs: test
main-is: Spec.hs
build-depends: base
, stapro
, HUnit
, Main
ghc-options: -threaded -rtsopts -with-rtsopts=-N
default-language: Haskell2010
...
您似乎在尝试依赖可执行文件(test-suite
部分 build-depends
中的 Main
),以便您可以在测试套件中对其进行测试。那行不通,事实上您根本无法真正测试您的可执行文件。
从 build-depends
中删除 Main
。将您要测试的所有代码移到您的库中。