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semantic/test/Graphing/Calls/Spec.hs
2020-01-29 15:09:17 -05:00

52 lines
2.2 KiB
Haskell

{-# LANGUAGE DataKinds #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TypeApplications #-}
module Graphing.Calls.Spec ( spec ) where
import Prelude hiding (readFile)
import SpecHelpers
import Algebra.Graph
import qualified Analysis.File as File
import Control.Effect.Parse
import Data.Graph.Algebraic (Graph (..), topologicalSort)
import Data.Graph.ControlFlowVertex
import qualified Data.Language as Language
import Semantic.Graph
import qualified System.Path as Path
callGraphPythonProject :: Path.RelFile -> IO (Semantic.Graph.Graph ControlFlowVertex)
callGraphPythonProject path = runTaskOrDie $ do
let proxy = Proxy @'Language.Python
lang = Language.Python
SomeParser parser <- pure . fromJust $! parserForLanguage analysisParsers Language.Python
blob <- readBlobFromFile' (File.fromPath path)
package <- fmap snd <$> parsePackage parser (Project (Path.toString (Path.takeDirectory path)) [blob] lang [])
modules <- topologicalSort <$> runImportGraphToModules proxy package
runCallGraph proxy False modules package
spec :: Spec
spec = describe "call graphing" $ do
let needs r v = unGraph r `shouldSatisfy` hasVertex v
it "should work for a simple example" $ do
res <- callGraphPythonProject (Path.relFile "test/fixtures/python/graphing/simple/simple.py")
res `needs` Variable "magnus" "simple.py" (Span (Pos 4 1) (Pos 4 7))
it "should evaluate both sides of an if-statement" $ do
res <- callGraphPythonProject (Path.relFile "test/fixtures/python/graphing/conditional/conditional.py")
res `needs` Variable "merle" "conditional.py" (Span (Pos 5 5) (Pos 5 10))
res `needs` Variable "taako" "conditional.py" (Span (Pos 8 5) (Pos 8 10))
it "should continue even when a type error is encountered" $ do
res <- callGraphPythonProject (Path.relFile "test/fixtures/python/graphing/typeerror/typeerror.py")
res `needs` Variable "lup" "typeerror.py" (Span (Pos 5 1) (Pos 5 4))
it "should continue when an unbound variable is encountered" $ do
res <- callGraphPythonProject (Path.relFile "test/fixtures/python/graphing/unbound/unbound.py")
res `needs` Variable "lucretia" "unbound.py" (Span (Pos 5 1) (Pos 5 9))