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Add benchmarks and property test for double Parser
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@ -4,17 +4,81 @@ module Streamly.Test.Unicode.Parser
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(main)
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where
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import Streamly.Internal.Data.Parser (ParseError (..))
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import Test.Hspec.QuickCheck (prop)
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import Test.QuickCheck (Property)
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import Test.QuickCheck.Monadic (run, monadicIO, assert)
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import qualified Streamly.Data.Stream as Stream
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( fromList, parse )
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import qualified Streamly.Internal.Data.Stream as Stream (parseBreak, toList)
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import qualified Streamly.Unicode.Parser as Unicode
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import qualified Test.Hspec as H
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import Control.Monad.Identity (Identity(runIdentity))
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import Debug.Trace (trace)
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import Streamly.Internal.Data.Parser (ParseError (..))
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import Streamly.Test.Common (chooseDouble)
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import Test.Hspec.QuickCheck (prop)
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import Test.QuickCheck
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(forAll, Property, property)
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import Test.QuickCheck.Monadic (monadicIO, assert, run)
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import qualified Data.Scientific as Scientific
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import qualified Streamly.Data.Stream as Stream
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import qualified Streamly.Internal.Data.Stream as Stream (parseBreak)
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import qualified Streamly.Unicode.Parser as Unicode
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import qualified Streamly.Internal.Unicode.Parser as Parser
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import qualified Test.Hspec as H
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-- Scientific notation
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scientificExpFP :: Property
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scientificExpFP =
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forAll (chooseDouble (-99.99e-12, 1234.4567e+234)) $ \ls ->
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case runIdentity $ Stream.parse parser (Stream.fromList (show ls)) of
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Right val -> if val == show ls
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then property (val == show ls)
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else trace
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("Expected = " ++ show ls ++ " Got = " ++ val)
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property (val == show ls)
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Left _ -> property False
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where
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formatter = Scientific.formatScientific Scientific.Exponent Nothing
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toScientific (c, m) = Scientific.scientific c m
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parser = formatter . toScientific <$> Parser.number
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-- Standard decimal notation.
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scientificFixFP :: Property
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scientificFixFP =
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forAll (chooseDouble (-0.00099, 123445.67998)) $ \ls ->
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case runIdentity $ Stream.parse parser (Stream.fromList (show ls)) of
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Right val -> if val == show ls
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then property (val == show ls)
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else trace
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("Expected = " ++ show ls ++ " Got = " ++ val)
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property (val == show ls)
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Left _ -> property False
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where
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formatter = Scientific.formatScientific Scientific.Fixed Nothing
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toScientific (c, m) = Scientific.scientific c m
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parser = formatter . toScientific <$> Parser.number
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doubleExpFP :: Property
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doubleExpFP =
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forAll (chooseDouble (-99.99e-12, 1234.4567e+234)) $ \ls -> do
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let sls = show ls
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case runIdentity $ Stream.parse Parser.double (Stream.fromList sls) of
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Right val -> if val == ls
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then property (val == ls)
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else trace
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("Read = "++ show (read sls :: Double) ++ " Expected = " ++ sls ++ " Got = " ++ show val)
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property (val == ls)
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Left _ -> property False
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-- Standard decimal notation.
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doubleFixFP :: Property
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doubleFixFP =
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forAll (chooseDouble (-0.00099, 123445.67998)) $ \ls ->
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case runIdentity $ Stream.parse Parser.double (Stream.fromList (show ls)) of
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Right val -> if val == ls
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then property (val == ls)
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else trace
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("Expected = " ++ show ls ++ " Got = " ++ show val)
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property (val == ls)
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Left _ -> property False
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doubleParser :: String -> IO (Either ParseError Double)
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doubleParser = Stream.parse Unicode.double . Stream.fromList
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@ -23,15 +87,19 @@ double :: String -> Double -> Property
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double s d = monadicIO $ do
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x <- run $ doubleParser s
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case x of
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Right val -> trace ("parsed " ++ show val) (assert (val == d))
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Left (ParseError _) -> assert (False)
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Right val -> if val == d
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then assert (val == d)
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else trace ("Expectedc = " ++ show d ++ " Got = "++ show val) (assert (val == d))
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Left (ParseError _) -> assert False
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doubleErr :: String -> String -> Property
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doubleErr s msg = monadicIO $ do
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x <- run $ doubleParser s
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case x of
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Right _ -> assert (False)
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Left (ParseError err) -> trace err (assert (err == msg))
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Right _ -> assert False
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Left (ParseError err) -> if err == msg
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then assert (err == msg)
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else trace err (assert (err == msg))
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remainingStream :: String -> [String]
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remainingStream x =
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@ -118,3 +186,9 @@ main = do
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prop "afterParse \"..\" \"..\"" $ afterParse ".." ".."
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prop "afterParse \"+\" \"+\"" $ afterParse "+" "+"
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prop "afterParse \"++\" \"++\"" $ afterParse "++" "++"
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H.describe "Scientific parser property test" $ do
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prop "Exponent format" scientificExpFP
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prop "Decimal format" scientificFixFP
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H.describe "double parser property test" $ do
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prop "Exponent format" doubleExpFP
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prop "Decimal format" doubleFixFP
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@ -12,6 +12,7 @@ module Streamly.Test.Common
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, listEquals
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, checkListEqual
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, chooseInt
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, chooseDouble
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) where
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import Control.Monad (when)
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@ -60,3 +61,6 @@ checkListEqual ls_1 ls_2 = monadicIO (listEquals (==) ls_1 ls_2)
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chooseInt :: (Int, Int) -> Gen Int
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chooseInt = choose
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chooseDouble :: (Double, Double) -> Gen Double
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chooseDouble = choose
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@ -158,6 +158,7 @@ common test-dependencies
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, filepath >= 1.4.1 && < 1.5
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, temporary >= 1.3 && < 1.4
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, network >= 3.1 && < 3.2
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, scientific >= 0.0 && < 0.4
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if !flag(use-streamly-core)
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build-depends: streamly
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