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semantic/test/Graphing/Calls/Spec.hs
2019-06-12 13:16:34 -04:00

45 lines
1.9 KiB
Haskell

{-# LANGUAGE PackageImports #-}
module Graphing.Calls.Spec ( spec ) where
import Prelude hiding (readFile)
import SpecHelpers hiding (readFile)
import Algebra.Graph
import Data.List (uncons)
import "semantic" Data.Graph (Graph (..), topologicalSort)
import Data.Graph.ControlFlowVertex
import qualified Data.Language as Language
import Semantic.Graph
callGraphPythonProject paths = runTaskOrDie $ do
let proxy = Proxy @'Language.Python
let lang = Language.Python
blobs <- catMaybes <$> traverse readBlobFromFile (flip File lang <$> paths)
package <- fmap snd <$> parsePackage pythonParser (Project (takeDirectory (maybe "/" fst (uncons paths))) blobs lang [])
modules <- topologicalSort <$> 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 ["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 ["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 ["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 ["test/fixtures/python/graphing/unbound/unbound.py"]
res `needs` Variable "lucretia" "unbound.py" (Span (Pos 5 1) (Pos 5 9))