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Merge branch 'test-rws-permutations' into substructural-diffing

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This commit is contained in:
Rob Rix 2017-09-26 12:10:32 -04:00
commit 89ab11d291
1 changed files with 8 additions and 7 deletions
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15
test/DiffSpec.hs
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@ -1,7 +1,6 @@
{-# LANGUAGE DataKinds #-}
module DiffSpec where
import Category
import Data.Functor.Both
import Data.Functor.Foldable (cata)
import Data.Functor.Listable (ListableSyntax)
@ -32,14 +31,16 @@ spec = parallel $ do
\ a b -> let diff = diffTerms a b :: Diff ListableSyntax (Record '[]) (Record '[]) in
afterTerm diff `shouldBe` Just b
prop "forward permutations are changes" $
\ a b -> let wrap = termIn Nil . inj
c = wrap [a] in
diffTerms (wrap [a, b, c]) (wrap [c, a, b :: Term ListableSyntax (Record '[])]) `shouldBe` merge (Nil, Nil) (inj [ inserting c, mergeTerm a, mergeTerm b, deleting c ])
prop "forward permutations are changes" $ pendingWith "https://github.com/github/semantic-diff/issues/1359"
-- \ a -> let wrap = termIn (Program :. Nil) . inj
-- b = wrap [a]
-- c = wrap [a, b] in
-- diffTerms (wrap [a, b, c]) (wrap [c, a, b :: Term ListableSyntax (Record '[])]) `shouldBe` merge (Nil, Nil) (inj [ inserting c, mergeTerm a, mergeTerm b, deleting c ])
prop "backward permutations are changes" $
\ a b -> let wrap = termIn Nil . inj
c = wrap [a] in
\ a -> let wrap = termIn Nil . inj
b = wrap [a]
c = wrap [a, b] in
diffTerms (wrap [a, b, c]) (wrap [b, c, a :: Term ListableSyntax (Record '[])]) `shouldBe` merge (Nil, Nil) (inj [ deleting a, mergeTerm b, mergeTerm c, inserting a ])
mergeTerm :: Functor syntax => Term syntax ann -> Diff syntax ann ann