mirror of
https://github.com/github/semantic.git
synced 2024-11-28 01:47:01 +03:00
120 lines
4.1 KiB
Haskell
120 lines
4.1 KiB
Haskell
{-# LANGUAGE OverloadedStrings, TypeApplications, TypeOperators #-}
|
|
module Main (main) where
|
|
|
|
import qualified Text.Trifecta as Trifecta
|
|
|
|
import Hedgehog hiding (Var)
|
|
import Test.Tasty
|
|
import Test.Tasty.Hedgehog
|
|
import Test.Tasty.HUnit
|
|
|
|
import qualified Analysis.Eval as Eval
|
|
import Core.Core
|
|
import Core.Core.Pretty
|
|
import Core.Core.Parser as Parse
|
|
import Core.File
|
|
import Core.Name
|
|
import qualified Generators as Gen
|
|
import Source.Span
|
|
import Syntax.Term
|
|
|
|
-- * Helpers
|
|
|
|
true, false :: Term Core Name
|
|
true = bool True
|
|
false = bool False
|
|
|
|
parseEither :: Trifecta.Parser a -> String -> Either String a
|
|
parseEither p = Trifecta.foldResult (Left . show . Trifecta._errDoc) Right . Trifecta.parseString (p <* Trifecta.eof) mempty
|
|
|
|
-- * Parser roundtripping properties. Note that parsing and prettyprinting is generally
|
|
-- not a roundtrip, because the parser inserts 'Ann' nodes itself.
|
|
|
|
prop_roundtrips :: Gen (Term Core Name) -> Property
|
|
prop_roundtrips gen = property $ do
|
|
input <- forAll gen
|
|
tripping input showCore (parseEither (Parse.core <* Trifecta.eof))
|
|
|
|
parserProps :: TestTree
|
|
parserProps = testGroup "Parsing: roundtripping"
|
|
[ testProperty "literals" $ prop_roundtrips Gen.literal
|
|
, testProperty "if/then/else" . prop_roundtrips . Gen.ifthenelse $ Gen.variable
|
|
, testProperty "lambda" . prop_roundtrips $ Gen.lambda Gen.literal
|
|
, testProperty "function application" . prop_roundtrips $ Gen.apply Gen.variable
|
|
, testProperty "expressions" . prop_roundtrips $ Gen.expr
|
|
]
|
|
|
|
-- * Parser specs
|
|
|
|
parsesInto :: String -> Term Core Name -> Assertion
|
|
parsesInto str res = case parseEither Parse.core str of
|
|
Right x -> x @?= res
|
|
Left m -> assertFailure m
|
|
|
|
assert_booleans_parse :: Assertion
|
|
assert_booleans_parse = do
|
|
parseEither Parse.core "#true" @?= Right true
|
|
parseEither Parse.core "#false" @?= Right false
|
|
|
|
a, f, g, h :: Term Core Name
|
|
(a, f, g, h) = (pure "a", pure "f", pure "g", pure "h")
|
|
|
|
assert_ifthen_parse :: Assertion
|
|
assert_ifthen_parse = "if #true then #true else #false" `parsesInto` (if' true true false)
|
|
|
|
assert_application_parse :: Assertion
|
|
assert_application_parse = "f g" `parsesInto` (f $$ g)
|
|
|
|
assert_application_left_associative :: Assertion
|
|
assert_application_left_associative = "f g h" `parsesInto` (f $$ g $$ h)
|
|
|
|
assert_push_left_associative :: Assertion
|
|
assert_push_left_associative = "f.g.h" `parsesInto` (f ... "g" ... "h")
|
|
|
|
assert_ascii_lambda_parse :: Assertion
|
|
assert_ascii_lambda_parse = "\\a -> a" `parsesInto` lam (named' "a") a
|
|
|
|
assert_unicode_lambda_parse :: Assertion
|
|
assert_unicode_lambda_parse = "λa → a" `parsesInto` lam (named' "a") a
|
|
|
|
assert_quoted_name_parse :: Assertion
|
|
assert_quoted_name_parse = "#{(NilClass)}" `parsesInto` pure "(NilClass)"
|
|
|
|
parserSpecs :: TestTree
|
|
parserSpecs = testGroup "Parsing: simple specs"
|
|
[ testCase "true/false" assert_booleans_parse
|
|
, testCase "if/then/else" assert_ifthen_parse
|
|
, testCase "function application" assert_application_parse
|
|
, testCase "application is left-associative" assert_application_left_associative
|
|
, testCase "dotted push is left-associative" assert_push_left_associative
|
|
, testCase "lambda with ASCII syntax" assert_ascii_lambda_parse
|
|
, testCase "lambda with unicode syntax" assert_unicode_lambda_parse
|
|
, testCase "quoted names" assert_quoted_name_parse
|
|
]
|
|
|
|
assert_roundtrips :: File (Term Core Name) -> Assertion
|
|
assert_roundtrips (File _ _ core) = case parseEither Parse.core (showCore core) of
|
|
Right v -> v @?= core
|
|
Left e -> assertFailure e
|
|
|
|
parserExamples :: TestTree
|
|
parserExamples = testGroup "Parsing: Eval.hs examples"
|
|
[ testCase "prog1" (assert_roundtrips Eval.prog1)
|
|
, testCase "prog2" (assert_roundtrips Eval.prog2)
|
|
, testCase "prog3" (assert_roundtrips Eval.prog3)
|
|
, testCase "prog4" (assert_roundtrips Eval.prog4)
|
|
, testCase "prog6.1" (assert_roundtrips (head Eval.prog6))
|
|
, testCase "prog6.2" (assert_roundtrips (last Eval.prog6))
|
|
, testCase "ruby" (assert_roundtrips (stripAnnotations @Span <$> Eval.ruby))
|
|
]
|
|
|
|
tests :: TestTree
|
|
tests = testGroup "semantic-core"
|
|
[ parserSpecs
|
|
, parserExamples
|
|
, parserProps
|
|
]
|
|
|
|
main :: IO ()
|
|
main = defaultMain tests
|