Merge branch 'discard'

This commit is contained in:
Michael Walker 2017-08-10 21:42:30 +01:00
commit 50712c54cd
12 changed files with 418 additions and 66 deletions

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@ -7,6 +7,7 @@ import qualified Cases.MultiThreaded as M
import qualified Cases.Refinement as R
import qualified Cases.Litmus as L
import qualified Cases.Async as A
import qualified Cases.Discard as D
-- | Run all the test cases.
testCases :: [Test]
@ -16,4 +17,5 @@ testCases = map (uncurry testGroup)
, ("Refinement", R.tests)
, ("Litmus", L.tests)
, ("Async", A.tests)
, ("Discard", D.tests)
]

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@ -0,0 +1,25 @@
module Cases.Discard where
import Control.Concurrent.Classy
import Test.DejaFu (gives')
import Test.Framework (Test)
import Test.Framework.Providers.HUnit (hUnitTestToTests)
import Test.HUnit (test)
import Test.HUnit.DejaFu (Discard(..), defaultMemType, defaultWay, testDejafuDiscard)
tests :: [Test]
tests = hUnitTestToTests $ test
[ check "all results" [1, 2, 3] (const Nothing)
, check "no results" [] (const $ Just DiscardResultAndTrace)
, check "some results" [1, 2] (\x -> if x == Right 3 then Just DiscardResultAndTrace else Nothing)
]
where
check name xs f = testDejafuDiscard f defaultWay defaultMemType nondet name (gives' xs)
nondet :: MonadConc m => m Int
nondet = do
mvar <- newEmptyMVar
fork $ putMVar mvar 1
fork $ putMVar mvar 2
fork $ putMVar mvar 3
readMVar mvar

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@ -25,6 +25,7 @@ executable dejafu-tests
, Cases.MultiThreaded
, Cases.Refinement
, Cases.Litmus
, Cases.Discard
, Examples
, Examples.AutoUpdate

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@ -6,6 +6,35 @@ All notable changes to this project will be documented in this file.
This project is versioned according to the [Package Versioning Policy](https://pvp.haskell.org), the
*de facto* standard Haskell versioning scheme.
unreleased
----------
### Test.DejaFu
- Exposed the new SCT discard functions through `dejafuDiscard` and `dejafuDiscardIO`.
There are no `dejafusDiscard` and `dejafusDiscardIO` functions because this would probably be
confusing, as the traces are shared.
- The `Discard` type and `defaultDiscard` function are also exposed.
### Test.DejaFu.Defaults
- Added a new `defaultDiscarder` function, which discards nothing.
### Test.DejaFu.SCT
- Added new SCT functions to selectively discard results or traces, which can be a significant
memory saving if you know what sorts of results you are interested in:
- New type: `Discard`.
- New functions: `runSCTDiscard`, `resultsSetDiscard`, `sctBoundDiscard`,
`sctUniformRandomDiscard`, and `sctWeightedRandomDiscard`.
- `resultsSet` and `resultsSet'` now discard traces as they are produced, rather than all at the
end, greatly improving performance when traces are large.
---------------------------------------------------------------------------------------------------
0.7.0.2 [2017-06-12] (git tag: [dejafu-0.7.0.2][])
-------

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@ -107,6 +107,12 @@ module Test.DejaFu
, dejafusWay
, dejafusWayIO
, Discard(..)
, defaultDiscarder
, dejafuDiscard
, dejafuDiscardIO
-- ** Memory Models
-- | Threads running under modern multicore processors do not behave
@ -378,7 +384,26 @@ dejafuWay :: Show a
-> (String, Predicate a)
-- ^ The predicate (with a name) to check
-> IO Bool
dejafuWay way memtype conc test = dejafusWay way memtype conc [test]
dejafuWay = dejafuDiscard (const Nothing)
-- | Variant of 'dejafuWay' which can selectively discard results.
--
-- @since unreleased
dejafuDiscard :: Show a
=> (Either Failure a -> Maybe Discard)
-- ^ Selectively discard results.
-> Way
-- ^ How to run the concurrent program.
-> MemType
-- ^ The memory model to use for non-synchronised @CRef@ operations.
-> (forall t. ConcST t a)
-- ^ The computation to test
-> (String, Predicate a)
-- ^ The predicate (with a name) to check
-> IO Bool
dejafuDiscard discard way memtype conc (name, test) = do
let traces = runST (runSCTDiscard discard way memtype conc)
doTest name (test traces)
-- | Variant of 'dejafu' which takes a collection of predicates to
-- test, returning 'True' if all pass.
@ -421,8 +446,15 @@ dejafuIO = dejafuWayIO defaultWay defaultMemType
--
-- @since 0.6.0.0
dejafuWayIO :: Show a => Way -> MemType -> ConcIO a -> (String, Predicate a) -> IO Bool
dejafuWayIO way memtype concio test =
dejafusWayIO way memtype concio [test]
dejafuWayIO = dejafuDiscardIO (const Nothing)
-- | Variant of 'dejafuDiscard' for computations which do 'IO'.
--
-- @since unreleased
dejafuDiscardIO :: Show a => (Either Failure a -> Maybe Discard) -> Way -> MemType -> ConcIO a -> (String, Predicate a) -> IO Bool
dejafuDiscardIO discard way memtype concio (name, test) = do
traces <- runSCTDiscard discard way memtype concio
doTest name (test traces)
-- | Variant of 'dejafus' for computations which do 'IO'.
--

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@ -742,6 +742,7 @@ instance NFData Decision where
--
-- @since 0.5.0.0
showTrace :: Trace -> String
showTrace [] = "<trace discarded>"
showTrace trc = intercalate "\n" $ concatMap go trc : strkey where
go (_,_,CommitCRef _ _) = "C-"
go (Start (ThreadId _ i),_,_) = "S" ++ show i ++ "-"

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@ -19,6 +19,12 @@ import Test.DejaFu.SCT
defaultWay :: Way
defaultWay = systematically defaultBounds
-- | Do not discard any results.
--
-- @since unreleased
defaultDiscarder :: Either Failure a -> Maybe Discard
defaultDiscarder = const Nothing
-- | The default memory model: @TotalStoreOrder@
--
-- @since 0.2.0.0

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@ -18,9 +18,18 @@ module Test.DejaFu.SCT
, uniformly
, swarmy
, runSCT
, runSCT'
, resultsSet
-- ** Discarding variants
, Discard(..)
, runSCTDiscard
, resultsSetDiscard
-- ** Strict variants
, runSCT'
, resultsSet'
, runSCTDiscard'
, resultsSetDiscard'
-- * Bounded Partial-order Reduction
@ -51,6 +60,7 @@ module Test.DejaFu.SCT
, Bounds(..)
, noBounds
, sctBound
, sctBoundDiscard
-- ** Pre-emption Bounding
@ -91,8 +101,11 @@ module Test.DejaFu.SCT
, sctUniformRandom
, sctWeightedRandom
, sctUniformRandomDiscard
, sctWeightedRandomDiscard
) where
import Control.Applicative ((<|>))
import Control.DeepSeq (NFData(..))
import Control.Monad.Ref (MonadRef)
import Data.List (foldl')
@ -201,21 +214,7 @@ runSCT :: MonadRef r n
-> ConcT r n a
-- ^ The computation to run many times.
-> n [(Either Failure a, Trace)]
runSCT (Systematic cb) memtype = sctBound memtype cb
runSCT (Weighted g lim use) memtype = sctWeightedRandom memtype g lim use
runSCT (Uniform g lim) memtype = sctUniformRandom memtype g lim
-- | A strict variant of 'runSCT'.
--
-- Demanding the result of this will force it to normal form, which
-- may be more efficient in some situations.
--
-- @since 0.6.0.0
runSCT' :: (MonadRef r n, NFData a)
=> Way -> MemType -> ConcT r n a -> n [(Either Failure a, Trace)]
runSCT' way memtype conc = do
res <- runSCT way memtype conc
rnf res `seq` pure res
runSCT = runSCTDiscard (const Nothing)
-- | Return the set of results of a concurrent program.
--
@ -228,8 +227,67 @@ resultsSet :: (MonadRef r n, Ord a)
-> ConcT r n a
-- ^ The computation to run many times.
-> n (Set (Either Failure a))
resultsSet way memtype conc =
S.fromList . map fst <$> runSCT way memtype conc
resultsSet = resultsSetDiscard (const Nothing)
-- | An @Either Failure a -> Maybe Discard@ value can be used to
-- selectively discard results.
--
-- @since unreleased
data Discard
= DiscardTrace
-- ^ Discard the trace but keep the result. The result will appear
-- to have an empty trace.
| DiscardResultAndTrace
-- ^ Discard the result and the trace. It will simply not be
-- reported as a possible behaviour of the program.
deriving (Eq, Show, Read, Ord, Enum, Bounded)
instance NFData Discard where
rnf d = d `seq` ()
-- | A variant of 'runSCT' which can selectively discard results.
--
-- @since unreleased
runSCTDiscard :: MonadRef r n
=> (Either Failure a -> Maybe Discard)
-- ^ Selectively discard results.
-> Way
-- ^ How to run the concurrent program.
-> MemType
-- ^ The memory model to use for non-synchronised @CRef@ operations.
-> ConcT r n a
-- ^ The computation to run many times.
-> n [(Either Failure a, Trace)]
runSCTDiscard discard (Systematic cb) memtype = sctBoundDiscard discard memtype cb
runSCTDiscard discard (Weighted g lim use) memtype = sctWeightedRandomDiscard discard memtype g lim use
runSCTDiscard discard (Uniform g lim) memtype = sctUniformRandomDiscard discard memtype g lim
-- | A variant of 'resultsSet' which can selectively discard results.
--
-- @since unreleased
resultsSetDiscard :: (MonadRef r n, Ord a)
=> (Either Failure a -> Maybe Discard)
-- ^ Selectively discard results. Traces are always discarded.
-> Way
-- ^ How to run the concurrent program.
-> MemType
-- ^ The memory model to use for non-synchronised @CRef@ operations.
-> ConcT r n a
-- ^ The computation to run many times.
-> n (Set (Either Failure a))
resultsSetDiscard discard way memtype conc =
let discard' efa = discard efa <|> Just DiscardTrace
in S.fromList . map fst <$> runSCTDiscard discard' way memtype conc
-- | A strict variant of 'runSCT'.
--
-- Demanding the result of this will force it to normal form, which
-- may be more efficient in some situations.
--
-- @since 0.6.0.0
runSCT' :: (MonadRef r n, NFData a)
=> Way -> MemType -> ConcT r n a -> n [(Either Failure a, Trace)]
runSCT' = runSCTDiscard' (const Nothing)
-- | A strict variant of 'resultsSet'.
--
@ -239,8 +297,30 @@ resultsSet way memtype conc =
-- @since 0.6.0.0
resultsSet' :: (MonadRef r n, Ord a, NFData a)
=> Way -> MemType -> ConcT r n a -> n (Set (Either Failure a))
resultsSet' way memtype conc = do
res <- resultsSet' way memtype conc
resultsSet' = resultsSetDiscard' (const Nothing)
-- | A strict variant of 'runSCTDiscard'.
--
-- Demanding the result of this will force it to normal form, which
-- may be more efficient in some situations.
--
-- @since unreleased
runSCTDiscard' :: (MonadRef r n, NFData a)
=> (Either Failure a -> Maybe Discard) -> Way -> MemType -> ConcT r n a -> n [(Either Failure a, Trace)]
runSCTDiscard' discard way memtype conc = do
res <- runSCTDiscard discard way memtype conc
rnf res `seq` pure res
-- | A strict variant of 'resultsSetDiscard'.
--
-- Demanding the result of this will force it to normal form, which
-- may be more efficient in some situations.
--
-- @since unreleased
resultsSetDiscard' :: (MonadRef r n, Ord a, NFData a)
=> (Either Failure a -> Maybe Discard) -> Way -> MemType -> ConcT r n a -> n (Set (Either Failure a))
resultsSetDiscard' discard way memtype conc = do
res <- resultsSetDiscard discard way memtype conc
rnf res `seq` pure res
-------------------------------------------------------------------------------
@ -394,7 +474,22 @@ sctBound :: MonadRef r n
-> ConcT r n a
-- ^ The computation to run many times
-> n [(Either Failure a, Trace)]
sctBound memtype cb conc = go initialState where
sctBound = sctBoundDiscard (const Nothing)
-- | A variant of 'sctBound' which can selectively discard results.
--
-- @since unreleased
sctBoundDiscard :: MonadRef r n
=> (Either Failure a -> Maybe Discard)
-- ^ Selectively discard results.
-> MemType
-- ^ The memory model to use for non-synchronised @CRef@ operations.
-> Bounds
-- ^ The combined bounds.
-> ConcT r n a
-- ^ The computation to run many times
-> n [(Either Failure a, Trace)]
sctBoundDiscard discard memtype cb conc = go initialState where
-- Repeatedly run the computation gathering all the results and
-- traces into a list until there are no schedules remaining to try.
go dp = case findSchedulePrefix dp of
@ -408,8 +503,8 @@ sctBound memtype cb conc = go initialState where
let newDPOR = addTrace conservative trace dp
if schedIgnore s
then go newDPOR
else ((res, trace):) <$> go (addBacktracks bpoints newDPOR)
then go newDPOR
else checkDiscard discard res trace $ go (addBacktracks bpoints newDPOR)
Nothing -> pure []
@ -443,14 +538,32 @@ sctUniformRandom :: (MonadRef r n, RandomGen g)
-> ConcT r n a
-- ^ The computation to run many times.
-> n [(Either Failure a, Trace)]
sctUniformRandom memtype g0 lim0 conc = go g0 (max 0 lim0) where
sctUniformRandom = sctUniformRandomDiscard (const Nothing)
-- | A variant of 'sctUniformRandom' which can selectively discard
-- results.
--
-- @since unreleased
sctUniformRandomDiscard :: (MonadRef r n, RandomGen g)
=> (Either Failure a -> Maybe Discard)
-- ^ Selectively discard results.
-> MemType
-- ^ The memory model to use for non-synchronised @CRef@ operations.
-> g
-- ^ The random number generator.
-> Int
-- ^ The number of executions to perform.
-> ConcT r n a
-- ^ The computation to run many times.
-> n [(Either Failure a, Trace)]
sctUniformRandomDiscard discard memtype g0 lim0 conc = go g0 (max 0 lim0) where
go _ 0 = pure []
go g n = do
(res, s, trace) <- runConcurrent (randSched $ \g' -> (1, g'))
memtype
(initialRandSchedState Nothing g)
conc
((res, trace):) <$> go (schedGen s) (n-1)
checkDiscard discard res trace $ go (schedGen s) (n-1)
-- | SCT via weighted random scheduling.
--
@ -472,7 +585,27 @@ sctWeightedRandom :: (MonadRef r n, RandomGen g)
-> ConcT r n a
-- ^ The computation to run many times.
-> n [(Either Failure a, Trace)]
sctWeightedRandom memtype g0 lim0 use0 conc = go g0 (max 0 lim0) (max 1 use0) M.empty where
sctWeightedRandom = sctWeightedRandomDiscard (const Nothing)
-- | A variant of 'sctWeightedRandom' which can selectively discard
-- results.
--
-- @since unreleased
sctWeightedRandomDiscard :: (MonadRef r n, RandomGen g)
=> (Either Failure a -> Maybe Discard)
-- ^ Selectively discard results.
-> MemType
-- ^ The memory model to use for non-synchronised @CRef@ operations.
-> g
-- ^ The random number generator.
-> Int
-- ^ The number of executions to perform.
-> Int
-- ^ The number of executions to use the same set of weights for.
-> ConcT r n a
-- ^ The computation to run many times.
-> n [(Either Failure a, Trace)]
sctWeightedRandomDiscard discard memtype g0 lim0 use0 conc = go g0 (max 0 lim0) (max 1 use0) M.empty where
go _ 0 _ _ = pure []
go g n 0 _ = go g n (max 1 use0) M.empty
go g n use ws = do
@ -480,7 +613,7 @@ sctWeightedRandom memtype g0 lim0 use0 conc = go g0 (max 0 lim0) (max 1 use0) M.
memtype
(initialRandSchedState (Just ws) g)
conc
((res, trace):) <$> go (schedGen s) (n-1) (use-1) (schedWeights s)
checkDiscard discard res trace $ go (schedGen s) (n-1) (use-1) (schedWeights s)
-------------------------------------------------------------------------------
-- Utilities
@ -542,3 +675,10 @@ trueBound _ _ = True
-- satisfied.
(&+&) :: BoundFunc -> BoundFunc -> BoundFunc
(&+&) b1 b2 ts dl = b1 ts dl && b2 ts dl
-- | Apply the discard function.
checkDiscard :: Functor f => (a -> Maybe Discard) -> a -> [b] -> f [(a, [b])] -> f [(a, [b])]
checkDiscard discard res trace rest = case discard res of
Just DiscardResultAndTrace -> rest
Just DiscardTrace -> ((res, []):) <$> rest
Nothing -> ((res, trace):) <$> rest

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@ -7,6 +7,23 @@ This project is versioned according to the [Package Versioning Policy](https://p
*de facto* standard Haskell versioning scheme.
unreleased
----------
### Test.HUnit.DejaFu
- Two new functions: `testDejafuDiscard` and `testDejafuDiscardIO`, allowing you to selectively
discard results or traces.
- The `Discard` type and `defaultDiscarder` function from dejafu is now re-exported.
### Miscellaneous
- Only dejafu UNRELEASED is supported.
---------------------------------------------------------------------------------------------------
0.6.0.0 [2017-06-07] (git tag: [hunit-dejafu-0.6.0.0][])
-------

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@ -45,6 +45,8 @@ module Test.HUnit.DejaFu
, testDejafuWay
, testDejafusWay
, testDejafuDiscard
-- ** @IO@
, testAutoIO
, testDejafuIO
@ -54,6 +56,8 @@ module Test.HUnit.DejaFu
, testDejafuWayIO
, testDejafusWayIO
, testDejafuDiscardIO
-- ** Re-exports
, Way
, defaultWay
@ -65,6 +69,8 @@ module Test.HUnit.DejaFu
, defaultBounds
, MemType(..)
, defaultMemType
, Discard(..)
, defaultDiscarder
-- * Refinement property testing
, testProperty
@ -96,11 +102,11 @@ import Test.HUnit.Lang (HUnitFailure(..))
-- instance :(
import Unsafe.Coerce (unsafeCoerce)
runSCTst :: Way -> MemType -> (forall t. Conc.ConcST t a) -> [(Either Failure a, Conc.Trace)]
runSCTst way memtype conc = runST (SCT.runSCT way memtype conc)
runSCTst :: (Either Failure a -> Maybe Discard) -> Way -> MemType -> (forall t. Conc.ConcST t a) -> [(Either Failure a, Conc.Trace)]
runSCTst discard way memtype conc = runST (SCT.runSCTDiscard discard way memtype conc)
runSCTio :: Way -> MemType -> Conc.ConcIO a -> IO [(Either Failure a, Conc.Trace)]
runSCTio = SCT.runSCT
runSCTio :: (Either Failure a -> Maybe Discard) -> Way -> MemType -> Conc.ConcIO a -> IO [(Either Failure a, Conc.Trace)]
runSCTio = SCT.runSCTDiscard
--------------------------------------------------------------------------------
-- HUnit-style unit testing
@ -124,12 +130,12 @@ instance Assertable (Conc.ConcST t ()) where
conc' = try conc
runSCTst' :: Conc.ConcST t (Either HUnitFailure ()) -> [(Either Failure (Either HUnitFailure ()), Conc.Trace)]
runSCTst' = unsafeCoerce $ runSCTst defaultWay defaultMemType
runSCTst' = unsafeCoerce $ runSCTst (const Nothing) defaultWay defaultMemType
-- | @since 0.3.0.0
instance Assertable (Conc.ConcIO ()) where
assert conc = do
traces <- runSCTio defaultWay defaultMemType (try conc)
traces <- runSCTio (const Nothing) defaultWay defaultMemType (try conc)
assertString . showErr $ assertableP traces
assertableP :: Predicate (Either HUnitFailure ())
@ -221,8 +227,27 @@ testDejafuWay :: Show a
-> Predicate a
-- ^ The predicate to check
-> Test
testDejafuWay way memtype conc name p =
testDejafusWay way memtype conc [(name, p)]
testDejafuWay = testDejafuDiscard (const Nothing)
-- | Variant of 'testDejafuWay' which can selectively discard results.
--
-- @since unreleased
testDejafuDiscard :: Show a
=> (Either Failure a -> Maybe Discard)
-- ^ Selectively discard results.
-> Way
-- ^ How to execute the concurrent program.
-> MemType
-- ^ The memory model to use for non-synchronised @CRef@ operations.
-> (forall t. Conc.ConcST t a)
-- ^ The computation to test
-> String
-- ^ The name of the test.
-> Predicate a
-- ^ The predicate to check
-> Test
testDejafuDiscard discard way memtype conc name test =
testst discard way memtype conc [(name, test)]
-- | Variant of 'testDejafu' which takes a collection of predicates to
-- test. This will share work between the predicates, rather than
@ -251,7 +276,7 @@ testDejafusWay :: Show a
-> [(String, Predicate a)]
-- ^ The list of predicates (with names) to check
-> Test
testDejafusWay = testst
testDejafusWay = testst (const Nothing)
-- | Variant of 'testDejafu' for computations which do 'IO'.
--
@ -264,8 +289,14 @@ testDejafuIO = testDejafuWayIO defaultWay defaultMemType
-- @since 0.5.0.0
testDejafuWayIO :: Show a
=> Way -> MemType -> Conc.ConcIO a -> String -> Predicate a -> Test
testDejafuWayIO way memtype concio name p =
testDejafusWayIO way memtype concio [(name, p)]
testDejafuWayIO = testDejafuDiscardIO (const Nothing)
-- | Variant of 'testDejafuDiscard' for computations which do 'IO'.
--
-- @since unreleased
testDejafuDiscardIO :: Show a => (Either Failure a -> Maybe Discard) -> Way -> MemType -> Conc.ConcIO a -> String -> Predicate a -> Test
testDejafuDiscardIO discard way memtype concio name test =
testio discard way memtype concio [(name, test)]
-- | Variant of 'testDejafus' for computations which do 'IO'.
--
@ -278,7 +309,7 @@ testDejafusIO = testDejafusWayIO defaultWay defaultMemType
-- @since 0.5.0.0
testDejafusWayIO :: Show a
=> Way -> MemType -> Conc.ConcIO a -> [(String, Predicate a)] -> Test
testDejafusWayIO = testio
testDejafusWayIO = testio (const Nothing)
-------------------------------------------------------------------------------
@ -302,8 +333,13 @@ testProperty = testprop
-- | Produce a HUnit 'Test' from a Deja Fu test.
testst :: Show a
=> Way -> MemType -> (forall t. Conc.ConcST t a) -> [(String, Predicate a)] -> Test
testst way memtype conc tests = case map toTest tests of
=> (Either Failure a -> Maybe Discard)
-> Way
-> MemType
-> (forall t. Conc.ConcST t a)
-> [(String, Predicate a)]
-> Test
testst discard way memtype conc tests = case map toTest tests of
[t] -> t
ts -> TestList ts
@ -311,12 +347,17 @@ testst way memtype conc tests = case map toTest tests of
toTest (name, p) = TestLabel name . TestCase $
assertString . showErr $ p traces
traces = runSCTst way memtype conc
traces = runSCTst discard way memtype conc
-- | Produce a HUnit 'Test' from an IO-using Deja Fu test.
testio :: Show a
=> Way -> MemType -> Conc.ConcIO a -> [(String, Predicate a)] -> Test
testio way memtype concio tests = case map toTest tests of
=> (Either Failure a -> Maybe Discard)
-> Way
-> MemType
-> Conc.ConcIO a
-> [(String, Predicate a)]
-> Test
testio discard way memtype concio tests = case map toTest tests of
[t] -> t
ts -> TestList ts
@ -326,7 +367,7 @@ testio way memtype concio tests = case map toTest tests of
-- really unsafe) here, as 'test' doesn't allow side-effects
-- (eg, constructing an 'MVar' to share the traces after one
-- test computed them).
traces <- runSCTio way memtype concio
traces <- runSCTio discard way memtype concio
assertString . showErr $ p traces
-- | Produce a HUnit 'Test' from a Deja Fu refinement property test.

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@ -7,6 +7,23 @@ This project is versioned according to the [Package Versioning Policy](https://p
*de facto* standard Haskell versioning scheme.
unreleased
----------
### Test.Tasty.DejaFu
- Two new functions: `testDejafuDiscard` and `testDejafuDiscardIO`, allowing you to selectively
discard results or traces.
- The `Discard` type and `defaultDiscarder` function from dejafu is now re-exported.
### Miscellaneous
- Only dejafu UNRELEASED is supported.
---------------------------------------------------------------------------------------------------
0.6.0.0 [2017-04-08] (git tag: [tasty-dejafu-0.6.0.0][])
-------

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@ -42,6 +42,8 @@ module Test.Tasty.DejaFu
, testDejafuWay
, testDejafusWay
, testDejafuDiscard
-- ** @IO@
, testAutoIO
, testDejafuIO
@ -51,6 +53,8 @@ module Test.Tasty.DejaFu
, testDejafuWayIO
, testDejafusWayIO
, testDejafuDiscardIO
-- ** Re-exports
, Way
, defaultWay
@ -62,6 +66,8 @@ module Test.Tasty.DejaFu
, defaultBounds
, MemType(..)
, defaultMemType
, Discard(..)
, defaultDiscarder
-- * Refinement property testing
, testProperty
@ -99,11 +105,11 @@ import Test.Tasty.Providers (IsTest(..), singleTest, testFailed,
-- instance :(
import Unsafe.Coerce (unsafeCoerce)
runSCTst :: Way -> MemType -> (forall t. Conc.ConcST t a) -> [(Either Failure a, Conc.Trace)]
runSCTst way memtype conc = runST (SCT.runSCT way memtype conc)
runSCTst :: (Either Failure a -> Maybe Discard) -> Way -> MemType -> (forall t. Conc.ConcST t a) -> [(Either Failure a, Conc.Trace)]
runSCTst discard way memtype conc = runST (SCT.runSCTDiscard discard way memtype conc)
runSCTio :: Way -> MemType -> Conc.ConcIO a -> IO [(Either Failure a, Conc.Trace)]
runSCTio = SCT.runSCT
runSCTio :: (Either Failure a -> Maybe Discard) -> Way -> MemType -> Conc.ConcIO a -> IO [(Either Failure a, Conc.Trace)]
runSCTio = SCT.runSCTDiscard
--------------------------------------------------------------------------------
-- Tasty-style unit testing
@ -116,7 +122,7 @@ instance Typeable t => IsTest (Conc.ConcST t (Maybe String)) where
let memtype = lookupOption options :: MemType
let way = lookupOption options :: Way
let runSCTst' :: Conc.ConcST t (Maybe String) -> [(Either Failure (Maybe String), Conc.Trace)]
runSCTst' = unsafeCoerce $ runSCTst way memtype
runSCTst' = unsafeCoerce $ runSCTst (const Nothing) way memtype
let traces = runSCTst' conc
run options (ConcTest traces assertableP) callback
@ -127,7 +133,7 @@ instance IsTest (Conc.ConcIO (Maybe String)) where
run options conc callback = do
let memtype = lookupOption options
let way = lookupOption options
let traces = runSCTio way memtype conc
let traces = runSCTio (const Nothing) way memtype conc
run options (ConcIOTest traces assertableP) callback
concOptions :: [OptionDescription]
@ -245,8 +251,27 @@ testDejafuWay :: Show a
-> Predicate a
-- ^ The predicate to check
-> TestTree
testDejafuWay way memtype conc name p =
testDejafusWay way memtype conc [(name, p)]
testDejafuWay = testDejafuDiscard (const Nothing)
-- | Variant of 'testDejafuWay' which can selectively discard results.
--
-- @since unreleased
testDejafuDiscard :: Show a
=> (Either Failure a -> Maybe Discard)
-- ^ Selectively discard results.
-> Way
-- ^ How to execute the concurrent program.
-> MemType
-- ^ The memory model to use for non-synchronised @CRef@ operations.
-> (forall t. Conc.ConcST t a)
-- ^ The computation to test
-> String
-- ^ The name of the test.
-> Predicate a
-- ^ The predicate to check
-> TestTree
testDejafuDiscard discard way memtype conc name test =
testst discard way memtype conc [(name, test)]
-- | Variant of 'testDejafu' which takes a collection of predicates to
-- test. This will share work between the predicates, rather than
@ -275,7 +300,7 @@ testDejafusWay :: Show a
-> [(TestName, Predicate a)]
-- ^ The list of predicates (with names) to check
-> TestTree
testDejafusWay = testst
testDejafusWay = testst (const Nothing)
-- | Variant of 'testDejafu' for computations which do 'IO'.
--
@ -288,8 +313,14 @@ testDejafuIO = testDejafuWayIO defaultWay defaultMemType
-- @since 0.5.0.0
testDejafuWayIO :: Show a
=> Way -> MemType -> Conc.ConcIO a -> TestName -> Predicate a -> TestTree
testDejafuWayIO way memtype concio name p =
testDejafusWayIO way memtype concio [(name, p)]
testDejafuWayIO = testDejafuDiscardIO (const Nothing)
-- | Variant of 'testDejafuDiscard' for computations which do 'IO'.
--
-- @since unreleased
testDejafuDiscardIO :: Show a => (Either Failure a -> Maybe Discard) -> Way -> MemType -> Conc.ConcIO a -> String -> Predicate a -> TestTree
testDejafuDiscardIO discard way memtype concio name test =
testio discard way memtype concio [(name, test)]
-- | Variant of 'testDejafus' for computations which do 'IO'.
--
@ -302,7 +333,7 @@ testDejafusIO = testDejafusWayIO defaultWay defaultMemType
-- @since 0.5.0.0
testDejafusWayIO :: Show a
=> Way -> MemType -> Conc.ConcIO a -> [(TestName, Predicate a)] -> TestTree
testDejafusWayIO = testio
testDejafusWayIO = testio (const Nothing)
-------------------------------------------------------------------------------
@ -368,20 +399,30 @@ instance IsTest PropTest where
-- | Produce a Tasty 'TestTree' from a Deja Fu test.
testst :: Show a
=> Way -> MemType -> (forall t. Conc.ConcST t a) -> [(TestName, Predicate a)] -> TestTree
testst way memtype conc tests = case map toTest tests of
=> (Either Failure a -> Maybe Discard)
-> Way
-> MemType
-> (forall t. Conc.ConcST t a)
-> [(TestName, Predicate a)]
-> TestTree
testst discard way memtype conc tests = case map toTest tests of
[t] -> t
ts -> testGroup "Deja Fu Tests" ts
where
toTest (name, p) = singleTest name $ ConcTest traces p
traces = runSCTst way memtype conc
traces = runSCTst discard way memtype conc
-- | Produce a Tasty 'Test' from an IO-using Deja Fu test.
testio :: Show a
=> Way -> MemType -> Conc.ConcIO a -> [(TestName, Predicate a)] -> TestTree
testio way memtype concio tests = case map toTest tests of
=> (Either Failure a -> Maybe Discard)
-> Way
-> MemType
-> Conc.ConcIO a
-> [(TestName, Predicate a)]
-> TestTree
testio discard way memtype concio tests = case map toTest tests of
[t] -> t
ts -> testGroup "Deja Fu Tests" ts
@ -390,7 +431,7 @@ testio way memtype concio tests = case map toTest tests of
-- As with HUnit, constructing a test is side-effect free, so
-- sharing of traces can't happen here.
traces = runSCTio way memtype concio
traces = runSCTio discard way memtype concio
-- | Produce a Tasty 'TestTree' from a Deja Fu refinement property test.
testprop :: (R.Testable p, R.Listable (R.X p), Eq (R.X p), Show (R.X p), Show (R.O p))