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semantic/test/Source/Spec.hs
2016-09-13 12:32:28 -04:00

24 lines
790 B
Haskell

module Source.Spec where
import Prologue
import Range
import Source
import SourceSpan
import Test.Hspec
import Test.Hspec.QuickCheck
spec :: Spec
spec = parallel $ do
describe "actualLineRanges" $ do
prop "produces 1 more range than there are newlines" $
\ s -> length (actualLineRanges (totalRange s) (fromList s)) `shouldBe` succ (length (filter (== '\n') s))
prop "produces exhaustive ranges" $
\ s -> let source = fromList s in
foldMap (`slice` source) (actualLineRanges (totalRange s) source) `shouldBe` source
describe "sourceSpanToRange" $ do
it "computes the range covering a span in a source" $
let source = fromList "a\nb" in
sourceSpanToRange source (SourceSpan "" (SourcePos 0 0) (SourcePos 1 1)) `shouldBe` totalRange source