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Gmane
From: Trystan Spangler <trystan.s <at> comcast.net>
Subject: ANNOUNCE: hspec-0.3.0 (better reporting of failed examples)
Newsgroups: gmane.comp.lang.haskell.general
Date: Thursday 3rd March 2011 00:49:58 UTC (over 6 years ago)
hspec version 0.3.0, Behavior Driven Development for Haskell, is now
available!

Improvements include fixing a base dependancy problem and better reporting
of failed examples.

Much thanks to Greg Weber for fixes and ideas!

http://hackage.haskell.org/package/hspec
https://github.com/trystan/hspec

As always, any advice, comments, or questions are welcome,
Trystan Spangler



For those who would like to see an example, running this program:

> import Test.Hspec
> import Test.Hspec.HUnit
> import Test.Hspec.QuickCheck (property)
> import Test.HUnit (assertBool, assertEqual)
> 
> main = hspec specs
> 
> specs = describe "hspec 0.3.0" [
>   it "still allows a Bool expression to act as an example"
>       (replicate 5 1 == [1,1,1,1,1]),
> 
>   it "still allows HUnit assertions to act as examples"
>       (assertBool "lame example" True),
> 
>   it "still allows QuickCheck properties to act as examples"
>       (property $ \ i -> (i::Int) == i + 1 - 1),
> 
>   it "now shows a list of failed examples"
>       (undefined :: Bool), -- expected to fail
> 
>   it "now collects better data from failed HUnit examples"
>       (assertEqual "this should fail" 1 2), -- expected to fail
> 
>   it "now collects better data from failed QuickCheck examples"
>       (property $ \ i -> (i::Int) * 2 - 2 /= i) -- expected to fail
>   ]

should send this to stdout:

hspec 0.3.0
 - still allows a Bool expression to act as an example
 - still allows HUnit assertions to act as examples
 - still allows QuickCheck properties to act as examples
 x now shows a list of failed examples [1]
 x now collects better data from failed HUnit examples [2]
 x now collects better data from failed QuickCheck examples [3]

1) hspec 0.3.0 now shows a list of failed examples FAILED
Prelude.undefined

2) hspec 0.3.0 now collects better data from failed HUnit examples FAILED
this should fail
expected: 1
 but got: 2

3) hspec 0.3.0 now collects better data from failed QuickCheck examples
FAILED
*** Failed! Falsifiable (after 4 tests):
2


Finished in 0.0494 seconds

6 examples, 3 failures
 
CD: 5ms