mirror of
https://github.com/github/semantic.git
synced 2024-11-24 08:54:07 +03:00
41 lines
1.6 KiB
Haskell
41 lines
1.6 KiB
Haskell
{-# LANGUAGE DataKinds #-}
|
|
module InterpreterSpec where
|
|
|
|
import Category
|
|
import Data.Functor.Both
|
|
import Data.Functor.Foldable hiding (Nil)
|
|
import Data.Functor.Listable
|
|
import Data.Record
|
|
import Data.String
|
|
import Diff
|
|
import Interpreter
|
|
import Patch
|
|
import Prologue
|
|
import Syntax
|
|
import Term
|
|
import Test.Hspec (Spec, describe, it, parallel)
|
|
import Test.Hspec.Expectations.Pretty
|
|
import Test.Hspec.LeanCheck
|
|
|
|
spec :: Spec
|
|
spec = parallel $ do
|
|
describe "interpret" $ do
|
|
it "returns a replacement when comparing two unicode equivalent terms" $
|
|
let termA = cofree $ (StringLiteral :. Nil) :< Leaf ("t\776" :: String)
|
|
termB = cofree $ (StringLiteral :. Nil) :< Leaf "\7831" in
|
|
diffTerms (both termA termB) `shouldBe` replacing termA termB
|
|
|
|
prop "produces correct diffs" $
|
|
\ a b -> let diff = diffTerms (unListableF <$> both a b :: Both (SyntaxTerm String '[Category])) in
|
|
(beforeTerm diff, afterTerm diff) `shouldBe` (Just (unListableF a), Just (unListableF b))
|
|
|
|
prop "constructs zero-cost diffs of equal terms" $
|
|
\ a -> let term = (unListableF a :: SyntaxTerm String '[Category])
|
|
diff = diffTerms (pure term) in
|
|
diffCost diff `shouldBe` 0
|
|
|
|
it "produces unbiased insertions within branches" $
|
|
let term s = cofree ((StringLiteral :. Nil) :< Indexed [ cofree ((StringLiteral :. Nil) :< Leaf s) ]) :: SyntaxTerm String '[Category]
|
|
root = cofree . ((Program :. Nil) :<) . Indexed in
|
|
diffTerms (both (root [ term "b" ]) (root [ term "a", term "b" ])) `shouldBe` wrap (pure (Program :. Nil) :< Indexed [ inserting (term "a"), cata wrap (fmap pure (term "b")) ])
|