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Changed the QuickCheck flow-graph generators to generate a Process as the top level, rather than Structured, to make the test input more interesting

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Neil Brown 2008-01-30 18:57:00 +00:00
parent 0dc4b81be8
commit c2c6bf24f8
1 changed files with 11 additions and 7 deletions
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18
common/FlowGraphTest.hs
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@ -398,8 +398,8 @@ enforceSize1 :: Gen a -> Gen a
enforceSize1 f = sized $ \n -> if n == 0 then resize 1 f else f
-- | An instance of Arbitrary for A.Structured that wraps the "genStructured" function.
instance Arbitrary (QC (A.Structured, Map.Map [Meta] A.Structured)) where
arbitrary = enforceSize1 $ sized $ \n -> evalStateT (genStructured nothing n) (Id 0) >>* findEmpty >>* QC
instance Arbitrary (QC (A.Process, Map.Map [Meta] A.Process)) where
arbitrary = enforceSize1 $ sized $ \n -> evalStateT (genProcess n) (Id 0) >>* findEmpty >>* QC
where
-- Copies the value for the empty-list key into the first element of the tuple:
findEmpty :: [([Meta], a)] -> (a, Map.Map [Meta] a)
@ -642,14 +642,18 @@ testModify =
where
-- | Checks that applying any set (from the powerset of identity functions) of identity functions
-- does not change the AST.
prop_Id :: QC (A.Structured, Map.Map [Meta] A.Structured) -> Result
prop_Id (QC (g,_)) = collectAll $ (flip map) (map (foldFuncsM) $ powerset $ pickFuncId $ genGraph g) $ \f -> runIdentity (f g) *==* g
prop_Id :: QC (A.Process, Map.Map [Meta] A.Process) -> Result
prop_Id (QC (g,_)) = collectAll $ (flip map) (map (foldFuncsM) $ powerset $ pickFuncId $ genGraph g') $ \f -> runIdentity (f g') *==* g'
where
g' = A.OnlyP emptyMeta g
-- | Checks that applying any set (from the powerset of replacement functions) of replacement functions
-- produces the expected result.
prop_Rep :: QC (A.Structured, Map.Map [Meta] A.Structured) -> Result
prop_Rep (QC (g,rest)) = collectAll $ (flip map) (helper $ pickFuncRep $ genGraph g) $
\(funcs,ms) -> Just (runIdentity (applyMetas ms funcs g)) *==* Map.lookup ms rest
prop_Rep :: QC (A.Process, Map.Map [Meta] A.Process) -> Result
prop_Rep (QC (g,rest)) = collectAll $ (flip map) (helper $ pickFuncRep $ genGraph g') $
\(funcs,ms) -> Just (runIdentity (applyMetas ms funcs g')) *==* (Map.lookup ms rest >>* A.OnlyP emptyMeta)
where
g' = A.OnlyP emptyMeta g
-- | This tests our genNumsToTotal function, which is itself a test generator; nasty!
prop_gennums :: Int -> Result