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semantic/test/Data/Scientific/Spec.hs
2019-08-08 13:55:37 -04:00

71 lines
2.8 KiB
Haskell

module Data.Scientific.Spec (testTree) where
import Data.Either
import Data.Foldable (for_)
import Data.Scientific.Exts
import Data.Text as Text
import qualified Generators as Gen
import Hedgehog
import qualified Hedgehog.Range as Range
import Test.Tasty as Tasty
import Test.Tasty.Hedgehog
import Test.Tasty.HUnit as HUnit
type Fixture = [(Text, Scientific)]
testFixture :: [(Text, Scientific)] -> HUnit.Assertion
testFixture vals = for_ vals $ \(input, expected) -> assertEqual (Text.unpack input) (parseScientific input) (Right expected)
pythonSyntax :: Fixture
pythonSyntax = [ ("-.6_6", -0.66)
, ("+.1_1", 0.11)
, ("123.4123", 123.4123)
, ("123.123J", 123.123) -- TODO: handle complex values separately in the parser
, ("1_1.3_1", 11.31)
, ("1_1.", 11.0)
, ("99E+01", 99e1)
, ("1e+3_4j", 1e34)
, ("3.e14", 3e14)
, (".3e1_4", 0.3e14)
, ("1_0.l", 10) -- this and the subsequent ones don't actually seem to be valid syntax, we should fix this in tree-sitter
, (".3", 0.3)
, (".1l", 0.1) -- omitting a leading 0 is deprecated in python 3, also note that the -l suffix is not valid in Python 3
]
rubySyntax :: Fixture
rubySyntax = [ ("1.234_5e1_0", 1.2345e10)
, ("1E30", 1e30)
, ("1.2i", 1.2)
, ("1.0e+6", 1.0e6)
, ("1.0e-6", 1.0e-6)
]
jsSyntax :: Fixture
jsSyntax = [ ("101", 101)
, ("3.14", 3.14)
, ("3.14e+1", 3.14e1)
, ("0x1ABCDEFabcdef", 470375954370031)
, ("0o7632157312", 1047060170)
, ("0b1010101001", 681)
]
testTree :: Tasty.TestTree
testTree = testGroup "Data.Scientific.Exts"
[ testCase "Python float syntax" $ testFixture pythonSyntax
, testCase "Ruby float syntax" $ testFixture rubySyntax
, testCase "JavaScript float syntax" $ testFixture jsSyntax
, testCase "Pathological input" $ do
isLeft (parseScientific ".") @? "Accepted period"
isLeft (parseScientific "") @? "Accepted empty string"
, testProperty "Scientific roundtripping" . property $ do
let nrange = Range.linear (negate 500000) 20000000
drange = Range.exponential 1 100000000
fromRat <- forAll (Gen.rationalScientific nrange drange)
Gen.classifyScientific fromRat
tripping fromRat (pack . show) parseScientific
, testProperty "Double-based Scientific roundtripping" . property $ do
fromDbl <- forAll (Gen.floatingScientific (Range.linearFrac (negate 1) 3))
Gen.classifyScientific fromDbl
tripping fromDbl (pack . show) parseScientific
]