50 lines
1.3 KiB
Haskell
50 lines
1.3 KiB
Haskell
module Gyehoek.Test.Sexp where
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import Test.Tasty (TestTree, testGroup)
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import Test.Tasty.HUnit
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import Language.Sexp.Located qualified as SL
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import Language.SexpGrammar ()
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import Gyehoek.Sexp (sx, equivalent)
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import Data.Function (on)
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test_root = testGroup "sexp" $
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[ sxTree
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]
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newtype EquivSexp = MkEquiv SL.Sexp
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deriving newtype (Show)
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instance Eq EquivSexp where
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MkEquiv x == MkEquiv y = equivalent x y
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assertEquiv
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:: HasCallStack
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=> String -> SL.Sexp -> SL.Sexp -> Assertion
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assertEquiv prefix = assertEqual prefix `on` MkEquiv
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equivto = assertEquiv ""
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sxTree :: TestTree
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sxTree = testGroup "sx"
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[ testCase "quotation" do
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equivto (SL.Symbol "abc") [sx|abc|]
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equivto (SL.ParenList [SL.Symbol "a", SL.Symbol "b"]) [sx|(a b)|]
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, testCase "antiquotation" do
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equivto [sx|123|]
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let meta = 123 :: Int
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in [sx|#{meta}|]
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equivto [sx|(blah (blah blah) blah)|]
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let meta = [sx|blah|]
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in [sx|(#{meta} (#{meta} #{meta}) #{meta})|]
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, testCase "splicing" do
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equivto [sx|(a b c d e f g)|]
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let metas = SL.Symbol <$> ["c","d","e"]
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in [sx|(a b ##{metas} f g)|]
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equivto [sx|(a (b c d) e f g)|]
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let
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e1 = SL.Symbol "c"
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e2 = SL.Symbol <$> ["e","f"]
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in [sx|(a (b #{e1} d) ##{e2} g)|]
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]
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