test-framework-0.2.3: Framework for running and organising tests, with HUnit and QuickCheck support



This module exports everything that you need to be able to create your own framework test provider. To create a provider you need to:

  • Create an instance of the Testlike class
  • Create an instance of the TestResultlike class
  • Expose a function that lets people construct Test values using your new instances



class (Show i, Show r) => TestResultlike i r | r -> i whereSource

Something like the result of a test: works in concert with Testlike. The type parameters are the type that is used for progress reports and the type of the final output of the test respectively.


testSucceeded :: r -> BoolSource

class TestResultlike i r => Testlike i r t | t -> i r, r -> i whereSource

Something test-like in its behaviour. The type parameters are the type that is used for progress reports, the type of the final output of the test and the data type encapsulating the whole potential to do a test respectively.

type TestName = StringSource

Test names or descriptions. These are shown to the user

type TestTypeName = StringSource

The name of a type of test, such as Properties or Test Cases. Tests of types of the same names will be grouped together in the test run summary.

data Test Source

Main test data type: builds up a list of tests to be run. Users should use the utility functions in e.g. the test-framework-hunit and test-framework-quickcheck packages to create instances of Test, and then build them up into testsuites by using testGroup and lists.

For an example of how to use test-framework, please see http://github.com/batterseapower/test-framework/raw/master/example/Test/Framework/Example.lhs


forall i r t . Testlike i r t => Test TestName t

A single test of some particular type.

TestGroup TestName [Test] 
PlusTestOptions TestOptions Test 

testGroup :: TestName -> [Test] -> TestSource

Assemble a number of tests into a cohesive group

data i :~> f Source


Finished f 
Improving i (i :~> f) 


Functor (:~> i) 

data ImprovingIO i f a Source


timeoutImprovingIO :: Int -> ImprovingIO i f a -> ImprovingIO i f (Maybe a)Source

Given a number of microseconds and an improving IO action, run that improving IO action only for at most the given period before giving up. See also timeout.

maybeTimeoutImprovingIO :: Maybe Int -> ImprovingIO i f a -> ImprovingIO i f (Maybe a)Source

As timeoutImprovingIO, but don't bother applying a timeout to the action if Nothing is given as the number of microseconds to apply the time out for.

newtype K a Source




unK :: a

mappendBy :: Monoid b => (a -> b) -> a -> a -> bSource

orElse :: Maybe a -> a -> aSource

onLeft :: (a -> c) -> (a, b) -> (c, b)Source

onRight :: (b -> c) -> (a, b) -> (a, c)Source

unlinesConcise :: [String] -> StringSource

Like unlines, but does not append a trailing newline if there is at least one line. For example:

 unlinesConcise ["A", "B"] == "A\nB"
 unlinesConcise [] == ""


 unlines ["A", "B"] == "A\nB\n"
 unlines [] == ""

This is closer to the behaviour of unwords, which does not append a trailing space.

mapAccumLM :: Monad m => (acc -> x -> m (acc, y)) -> acc -> [x] -> m (acc, [y])Source

dropLast :: Int -> [a] -> [a]Source