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Why does my HUnit test suite fail but pass successfully in Cabal?

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问题 If I have test/Test.hs with module Main where import Test.HUnit test1 :: Test test1 = TestCase $ assertEqual "Should be one" 1 5 test2 :: Test test2 = TestCase $ assertEqual "Shold both be zero" 0 0 main :: IO Counts main = runTestTT $ TestList [test1, test2, test1] and a .cabal with test-suite my-test type: exitcode-stdio-1.0 hs-source-dirs: test main-is: Test.hs build-depends: base >= 4.8.1.0 && <4.9, HUnit >= 1.3 default-language: Haskell2010 and I run cabal test --show-details='always'

Why does my HUnit test suite fail but pass successfully in Cabal?

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How do I test for an error in Haskell?

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问题 I want to be able to make sure a function will throw an error when it receives and invalid value. For example, let says I have a function pos that only returns a positive number: pos :: Int -> Int pos x | x >= 0 = x | otherwise = error "Invalid Input" This is a simplistic example, but I hope you get the idea. I want to be able to write a test case that will expect an error and consider it a passing test. For example: tests = [pos 1 == 1, assertError pos (-1), pos 2 == 2, assertError pos (-2)]

How to use HUnit and Cabal to do Automated Testing?

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问题 I've been fighting with Cabal for a good portion of a day trying to make its automated testing features work with HUnit. I've read the documentation here and here, and I have my Test-Suite section set up like it shows, but whenever I try and build the package using cabal build Cabal says that the only Test-Suite type supported is exitcode-stdio-1.0 . What gives? 回答1: Background So here's the deal, the documentation on the cabal site is "future documentation," that is, not all of those

Current state of integrating unit tests with Haskell's Cabal?

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问题 When i google for how to integrate unit tests with cabal files, i either find http://www.haskell.org/haskellwiki/How_to_write_a_Haskell_program which does not seem to describe the integration of HUnit/QuickCheck with the Cabal file or i see messages like "wait for Cabal x.y which will support cabal test" but i can not find any documentation for this either How would you run all unit test using cabal (for example everytime i do a "cabal build") today? 回答1: Make sure you have the latest version

Current state of integrating unit tests with Haskell's Cabal?

阅读更多关于 Current state of integrating unit tests with Haskell's Cabal?

When i google for how to integrate unit tests with cabal files, i either find http://www.haskell.org/haskellwiki/How_to_write_a_Haskell_program which does not seem to describe the integration of HUnit/QuickCheck with the Cabal file or i see messages like "wait for Cabal x.y which will support cabal test" but i can not find any documentation for this either How would you run all unit test using cabal (for example everytime i do a "cabal build") today? tibbe Make sure you have the latest version of Cabal and cabal-install installed. Have a test-suite section in your .cabal file. See this section

How do I test for an error in Haskell?

阅读更多关于 How do I test for an error in Haskell?

I want to be able to make sure a function will throw an error when it receives and invalid value. For example, let says I have a function pos that only returns a positive number: pos :: Int -> Int pos x | x >= 0 = x | otherwise = error "Invalid Input" This is a simplistic example, but I hope you get the idea. I want to be able to write a test case that will expect an error and consider it a passing test. For example: tests = [pos 1 == 1, assertError pos (-1), pos 2 == 2, assertError pos (-2)] runTests = all (== True) tests [My Solution] This is what I ended up going with based on @hammar's