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37 lines
1.6 KiB
Haskell
37 lines
1.6 KiB
Haskell
module Data.RandomWalkSimilarity.Spec where
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import Category
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import Data.DList as DList hiding (toList)
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import Data.RandomWalkSimilarity
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import Diff
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import Patch
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import Prologue
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import Syntax
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import Term
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import Term.Arbitrary
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import Test.Hspec
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import Test.Hspec.QuickCheck
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import Test.QuickCheck
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spec :: Spec
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spec = parallel $ do
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describe "pqGrams" $ do
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prop "produces grams with stems of the specified length" . forAll (arbitrary `suchThat` (\ (_, p, q) -> p > 0 && q > 0)) $
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\ (term, p, q) -> pqGrams p q identity (toTerm term :: Term Text Text) `shouldSatisfy` all ((== p) . length . stem)
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prop "produces grams with bases of the specified length" . forAll (arbitrary `suchThat` (\ (_, p, q) -> p > 0 && q > 0)) $
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\ (term, p, q) -> pqGrams p q identity (toTerm term :: Term Text Text) `shouldSatisfy` all ((== q) . length . base)
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describe "featureVector" $ do
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prop "produces a vector of the specified dimension" . forAll (arbitrary `suchThat` ((> 0) . Prologue.snd)) $
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\ (grams, d) -> length (featureVector d (fromList (grams :: [Gram Text]))) `shouldBe` d
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describe "rws" $ do
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let compare a b = if extract a == extract b then Just (pure (Replace a b)) else Nothing
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prop "produces correct diffs" . forAll (scale (`div` 4) arbitrary) $
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\ (as, bs) -> let tas = toTerm <$> as
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tbs = toTerm <$> bs
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diff = free (Free (pure Program :< Indexed (rws compare identity tas tbs :: [Diff Text Category]))) in
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(beforeTerm diff, afterTerm diff) `shouldBe` (Just (cofree (Program :< Indexed tas)), Just (cofree (Program :< Indexed tbs)))
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