[英]Cabal and HUnit interaction
I am trying to get a simple unit test to work, written in HUnit. 我正在尝试使用HUnit编写一个简单的单元测试。
The module I have put the test in is named "MyTests". 我放入测试的模块名为“ MyTests”。
module MyTests where
import qualified Test.HUnit as H
gamma = H.TestCase (H.assertEqual "foo" 1 1)
-- Run the tests from the REPL
runTestTT $ H.TestList [H.TestLabel "foo" gamma]
I can run this module perfectly fine from the cabal repl: 我可以从cabal repl运行此模块:
λ> run
Cases: 1 Tried: 1 Errors: 0 Failures: 0
Counts {cases = 1, tried = 1, errors = 0, failures = 0}
I want to integrate these tests with Cabal such that I can run cabal test
. 我想将这些测试与Cabal集成在一起,以便可以运行Cabal
cabal test
。
From a few hours of googling I found that I should be able to test my application using the following seqeuence: 经过数小时的搜寻,我发现我应该能够使用以下顺序测试我的应用程序:
cabal configure --enable-tests && cabal build tests && cabal test
I have inserted the following in my .cabal file: 我在.cabal文件中插入了以下内容:
Test-Suite tests
type: exitcode-stdio-1.0
main-is: Main.hs
hs-source-dirs: test src
test-module: YourTestModule
build-depends: base
, HUnit
, Cabal
, QuickCheck
, test-framework
, test-framework-hunit
, test-framework-quickcheck2
In the Main.hs
file under the test/
folder I have the following: 在
test/
文件夹下的Main.hs
文件中,我具有以下内容:
module Main where
import Test.Framework (defaultMain, testGroup)
import Test.Framework.Providers.HUnit
import Test.Framework.Providers.QuickCheck2 (testProperty)
import Test.QuickCheck
import Test.HUnit
import Data.List
import qualified MyTests as AG
main = defaultMain tests
tests = [
testGroup "Some group" [
testCase "foo" AG.gamma
]
]
This obviously returns an error: 这显然会返回错误:
test/Main.hs:19:32:
Couldn't match type ‘Test’ with ‘IO ()’
Expected type: Assertion
Actual type: Test
In the second argument of ‘testCase’, namely ‘AG.gamma’
In the expression: testCase "foo" AG.gamma
I really like the HUnit tests I have written so far (this is a MWE) and I wonder hw I can integrate these tests with eachother? 我真的很喜欢到目前为止已经编写的HUnit测试(这是MWE),我不知道为什么我可以将这些测试相互集成?
The problem is that AG.gamma
is of type Test
, since TestCase :: Assertion -> Test
. 问题在于
AG.gamma
是Test
类型的,因为TestCase :: Assertion -> Test
。
So HUnit has one way of creating trees of tests, and test-framework
has another way of creating trees of tests, using the function testCase :: TestName -> Assertion -> Test
. 因此,使用功能
testCase :: TestName -> Assertion -> Test
,HUnit提供了一种创建测试树的方法,而test-framework
提供了另一种创建测试树的方法。
Hence You can't take an HUnit.Test
and pass it to testCase
. 因此,您不能将
HUnit.Test
传递给testCase
。 But it turns out you can take an HUnit.Test
and convert it to a test-framework
test (or rather a list of them). 但事实证明,您可以使用
HUnit.Test
并将其转换为test-framework
测试(或更确切地说是它们的列表)。
Use the other function from the test-framework
module: 使用
test-framework
模块中的其他功能:
hUnitTestToTests :: HUnit.Test -> [TestFramework.Test]
(signature augmented to show where modules come from). (签名增加以显示模块来自何处)。
See here for more details: 请参阅此处以获取更多详细信息:
https://hackage.haskell.org/package/test-framework-hunit-0.3.0.2/docs/Test-Framework-Providers-HUnit.html https://hackage.haskell.org/package/test-framework-hunit-0.3.0.2/docs/Test-Framework-Providers-HUnit.html
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