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68 lines
3.4 KiB
Haskell
68 lines
3.4 KiB
Haskell
module AlignmentSpec where
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import Test.Hspec
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import Test.Hspec.QuickCheck
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import Test.QuickCheck hiding (Fixed)
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import Data.Text.Arbitrary ()
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import Alignment
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import ArbitraryTerm (arbitraryLeaf)
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import Control.Arrow
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import Control.Comonad.Cofree
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import Control.Monad.Free hiding (unfold)
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import Data.Adjoined
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import Data.Copointed
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import Data.Functor.Both as Both
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import Diff
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import qualified Data.Maybe as Maybe
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import Data.Functor.Identity
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import Line
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import Patch
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import Prelude hiding (fst, snd)
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import qualified Prelude
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import Range
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import Source hiding ((++), fromList)
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import qualified Source
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import SplitDiff
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import Syntax
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spec :: Spec
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spec = parallel $ do
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describe "splitDiffByLines" $ do
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prop "preserves line counts in equal sources" $
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\ source ->
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length (splitDiffByLines (pure source) (Free $ Annotated (pure $ Info (totalRange source) mempty) (Indexed . Prelude.fst $ foldl combineIntoLeaves ([], 0) source))) `shouldBe` length (filter (== '\n') $ toString source) + 1
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prop "produces the maximum line count in inequal sources" $
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\ sources ->
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length (splitDiffByLines sources (Free $ Annotated ((`Info` mempty) . totalRange <$> sources) (Indexed $ leafWithRangesInSources sources <$> runBothWith (zipWith both) (actualLineRanges <$> (totalRange <$> sources) <*> sources)))) `shouldBe` runBothWith max ((+ 1) . length . filter (== '\n') . toString <$> sources)
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describe "splitAbstractedTerm" $ do
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prop "preserves line count" $
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\ source -> let range = totalRange source in
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splitAbstractedTerm (:<) (Identity source) (Identity (Info range mempty)) (Leaf source) `shouldBe` (Identity . lineMap (fmap (((:< Leaf source) . (`Info` mempty) &&& id))) <$> linesInRangeOfSource range source)
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let makeTerm = ((Free .) . Annotated) :: Info -> Syntax (Source Char) (SplitDiff (Source Char) Info) -> SplitDiff (Source Char) Info
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prop "outputs one row for single-line unchanged leaves" $
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forAll (arbitraryLeaf `suchThat` isOnSingleLine) $
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\ (source, info@(Info range categories), syntax) -> splitAbstractedTerm makeTerm (pure source) (pure $ Info range categories) syntax `shouldBe` fromList [
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both (pure (makeTerm info $ Leaf source, Range 0 (length source))) (pure (makeTerm info $ Leaf source, Range 0 (length source))) ]
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prop "outputs one row for single-line empty unchanged indexed nodes" $
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forAll (arbitrary `suchThat` (\ a -> filter (/= '\n') (toString a) == toString a)) $
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\ source -> splitAbstractedTerm makeTerm (pure source) (pure $ Info (totalRange source) mempty) (Indexed []) `shouldBe` fromList [
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both (pure (makeTerm (Info (totalRange source) mempty) $ Indexed [], Range 0 (length source))) (pure (makeTerm (Info (totalRange source) mempty) $ Indexed [], Range 0 (length source))) ]
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where
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isOnSingleLine (a, _, _) = filter (/= '\n') (toString a) == toString a
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combineIntoLeaves (leaves, start) char = (leaves ++ [ Free $ Annotated (Info <$> pure (Range start $ start + 1) <*> mempty) (Leaf [ char ]) ], start + 1)
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leafWithRangesInSources sources ranges = Free $ Annotated (Info <$> ranges <*> pure mempty) (Leaf $ runBothWith (++) (toString <$> sources))
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leafWithRangeInSource source range = Info range mempty :< Leaf source
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patchWithBoth (Insert ()) = Insert . snd
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patchWithBoth (Delete ()) = Delete . fst
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patchWithBoth (Replace () ()) = runBothWith Replace
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