witch-1.0.0.1: source/test-suite/Main.hs
{-# OPTIONS_GHC -Wno-error=overflowed-literals #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE NegativeLiterals #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeApplications #-}
import qualified Control.Exception as Exception
import qualified Data.ByteString as ByteString
import qualified Data.ByteString.Lazy as LazyByteString
import qualified Data.ByteString.Short as ShortByteString
import qualified Data.Complex as Complex
import qualified Data.Either as Either
import qualified Data.Fixed as Fixed
import qualified Data.Int as Int
import qualified Data.IntMap as IntMap
import qualified Data.IntSet as IntSet
import qualified Data.List.NonEmpty as NonEmpty
import qualified Data.Map as Map
import qualified Data.Ratio as Ratio
import qualified Data.Sequence as Seq
import qualified Data.Set as Set
import qualified Data.Text as Text
import qualified Data.Text.Lazy as LazyText
import qualified Data.Time as Time
import qualified Data.Time.Clock.POSIX as Time
import qualified Data.Time.Clock.System as Time
import qualified Data.Time.Clock.TAI as Time
import qualified Data.Word as Word
import qualified Numeric.Natural as Natural
import Test.HUnit (Test(TestCase), assertBool, runTestTTAndExit, (~:), (~?=))
import qualified Witch
main :: IO ()
main =
runTestTTAndExit
$ "Witch"
~: [ "From"
~: ["from" ~: [Witch.from (1 :: Int.Int8) ~?= (1 :: Int.Int16)]]
, "TryFrom"
~: [ "tryFrom"
~: let f = hush . Witch.tryFrom @Int.Int16 @Int.Int8
in [f 1 ~?= Just 1, f 128 ~?= Nothing]
]
, "Utility"
~: [ "as" ~: [Witch.as @Int.Int8 1 ~?= 1]
, "from" ~: [Witch.from @Int.Int8 1 ~?= (1 :: Int.Int16)]
, "into" ~: [Witch.into @Int.Int16 (1 :: Int.Int8) ~?= 1]
, "over" ~: [Witch.over @Int.Int8 (+ 1) (Age 1) ~?= Age 2]
, "via"
~: [Witch.via @Int.Int16 (1 :: Int.Int8) ~?= (1 :: Int.Int32)]
, "tryFrom"
~: [hush (Witch.tryFrom @Int.Int16 1) ~?= Just (1 :: Int.Int8)]
, "tryInto"
~: [hush (Witch.tryInto @Int.Int8 (1 :: Int.Int16)) ~?= Just 1]
, "tryVia"
~: let f = Witch.tryVia @Int.Int16 @Int.Int32 @Int.Int8
in
[ hush (f 1) ~?= Just 1
, hush (f 128) ~?= Nothing
, hush (f 32768) ~?= Nothing
]
, "unsafeFrom"
~: let f = Witch.unsafeFrom @Int.Int16 @Int.Int8
in
[ f 1 ~?= 1
, TestCase $ do
result <-
Exception.try @Exception.SomeException
. Exception.evaluate
$ f 128
assertBool (show result) $ Either.isLeft result
]
, "unsafeInto"
~: [Witch.unsafeInto @Int.Int8 (1 :: Int.Int16) ~?= 1]
]
, "Lift"
~: [ "liftedFrom"
~: [($$(Witch.liftedFrom (1 :: Int.Int16)) :: Int.Int8) ~?= 1]
, "liftedInto"
~: [$$(Witch.liftedInto @Int.Int8 (1 :: Int.Int16)) ~?= 1]
]
, "TryFromException"
~: [ "show"
~: [ show (Witch.TryFromException @Int @Int 0 Nothing)
~?= "TryFromException @Int @Int 0 Nothing"
, show
(Witch.TryFromException @(Seq.Seq Int) @(Seq.Seq Int)
(Seq.fromList [])
(Just (Exception.toException Exception.Overflow))
)
~?= "TryFromException @(Seq Int) @(Seq Int) (fromList []) (Just arithmetic overflow)"
]
]
, "Instances"
~: [ "From a a" ~: let f = Witch.from @Int @Int in [f 0 ~?= 0]
-- Int8
, "From Int8 Int16"
~: let f = Witch.from @Int.Int8 @Int.Int16
in [f 0 ~?= 0, f 127 ~?= 127, f (-128) ~?= (-128)]
, "From Int8 Int32"
~: let f = Witch.from @Int.Int8 @Int.Int32
in [f 0 ~?= 0, f 127 ~?= 127, f (-128) ~?= (-128)]
, "From Int8 Int64"
~: let f = Witch.from @Int.Int8 @Int.Int64
in [f 0 ~?= 0, f 127 ~?= 127, f (-128) ~?= (-128)]
, "From Int8 Int"
~: let f = Witch.from @Int.Int8 @Int
in [f 0 ~?= 0, f 127 ~?= 127, f (-128) ~?= (-128)]
, "From Int8 Integer"
~: let f = Witch.from @Int.Int8 @Integer
in [f 0 ~?= 0, f 127 ~?= 127, f (-128) ~?= (-128)]
, "TryFrom Int8 Word8"
~: let f = hush . Witch.tryFrom @Int.Int8 @Word.Word8
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f (-1) ~?= Nothing]
, "TryFrom Int8 Word16"
~: let f = hush . Witch.tryFrom @Int.Int8 @Word.Word16
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f (-1) ~?= Nothing]
, "TryFrom Int8 Word32"
~: let f = hush . Witch.tryFrom @Int.Int8 @Word.Word32
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f (-1) ~?= Nothing]
, "TryFrom Int8 Word64"
~: let f = hush . Witch.tryFrom @Int.Int8 @Word.Word64
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f (-1) ~?= Nothing]
, "TryFrom Int8 Word"
~: let f = hush . Witch.tryFrom @Int.Int8 @Word
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f (-1) ~?= Nothing]
, "TryFrom Int8 Natural"
~: let f = hush . Witch.tryFrom @Int.Int8 @Natural.Natural
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f (-1) ~?= Nothing]
, "From Int8 Float"
~: let f = Witch.from @Int.Int8 @Float
in [f 0 ~?= 0, f 127 ~?= 127, f (-128) ~?= (-128)]
, "From Int8 Double"
~: let f = Witch.from @Int.Int8 @Double
in [f 0 ~?= 0, f 127 ~?= 127, f (-128) ~?= (-128)]
-- Int16
, "TryFrom Int16 Int8"
~: let f = hush . Witch.tryFrom @Int.Int16 @Int.Int8
in
[ f 0 ~?= Just 0
, f 127 ~?= Just 127
, f 128 ~?= Nothing
, f (-128) ~?= Just (-128)
, f (-129) ~?= Nothing
]
, "From Int16 Int32"
~: let f = Witch.from @Int.Int16 @Int.Int32
in [f 0 ~?= 0, f 32767 ~?= 32767, f (-32768) ~?= (-32768)]
, "From Int16 Int64"
~: let f = Witch.from @Int.Int16 @Int.Int64
in [f 0 ~?= 0, f 32767 ~?= 32767, f (-32768) ~?= (-32768)]
, "From Int16 Int"
~: let f = Witch.from @Int.Int16 @Int
in [f 0 ~?= 0, f 32767 ~?= 32767, f (-32768) ~?= (-32768)]
, "From Int16 Integer"
~: let f = Witch.from @Int.Int16 @Integer
in [f 0 ~?= 0, f 32767 ~?= 32767, f (-32768) ~?= (-32768)]
, "TryFrom Int16 Word8"
~: let f = hush . Witch.tryFrom @Int.Int16 @Word.Word8
in
[ f 0 ~?= Just 0
, f 255 ~?= Just 255
, f 256 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Int16 Word16"
~: let f = hush . Witch.tryFrom @Int.Int16 @Word.Word16
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f (-1) ~?= Nothing]
, "TryFrom Int16 Word32"
~: let f = hush . Witch.tryFrom @Int.Int16 @Word.Word32
in
[f 0 ~?= Just 0, f 32767 ~?= Just 32767, f (-1) ~?= Nothing]
, "TryFrom Int16 Word64"
~: let f = hush . Witch.tryFrom @Int.Int16 @Word.Word64
in
[f 0 ~?= Just 0, f 32767 ~?= Just 32767, f (-1) ~?= Nothing]
, "TryFrom Int16 Word"
~: let f = hush . Witch.tryFrom @Int.Int16 @Word
in
[f 0 ~?= Just 0, f 32767 ~?= Just 32767, f (-1) ~?= Nothing]
, "TryFrom Int16 Natural"
~: let f = hush . Witch.tryFrom @Int.Int16 @Natural.Natural
in
[f 0 ~?= Just 0, f 32767 ~?= Just 32767, f (-1) ~?= Nothing]
, "From Int16 Float"
~: let f = Witch.from @Int.Int16 @Float
in [f 0 ~?= 0, f 32767 ~?= 32767, f (-32768) ~?= (-32768)]
, "From Int16 Double"
~: let f = Witch.from @Int.Int16 @Double
in [f 0 ~?= 0, f 32767 ~?= 32767, f (-32768) ~?= (-32768)]
-- Int32
, "TryFrom Int32 Int8"
~: let f = hush . Witch.tryFrom @Int.Int32 @Int.Int8
in
[ f 0 ~?= Just 0
, f 127 ~?= Just 127
, f 128 ~?= Nothing
, f (-128) ~?= Just (-128)
, f (-129) ~?= Nothing
]
, "TryFrom Int32 Int16"
~: let f = hush . Witch.tryFrom @Int.Int32 @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
, f (-32768) ~?= Just (-32768)
, f (-32769) ~?= Nothing
]
, "From Int32 Int64"
~: let f = Witch.from @Int.Int32 @Int.Int64
in
[ f 0 ~?= 0
, f 2147483647 ~?= 2147483647
, f (-2147483648) ~?= (-2147483648)
]
, "TryFrom Int32 Int"
~: let f = hush . Witch.tryFrom @Int.Int32 @Int
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f (-2147483648) ~?= Just (-2147483648)
]
, "From Int32 Integer"
~: let f = Witch.from @Int.Int32 @Integer
in
[ f 0 ~?= 0
, f 2147483647 ~?= 2147483647
, f (-2147483648) ~?= (-2147483648)
]
, "TryFrom Int32 Word8"
~: let f = hush . Witch.tryFrom @Int.Int32 @Word.Word8
in
[ f 0 ~?= Just 0
, f 255 ~?= Just 255
, f 256 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Int32 Word16"
~: let f = hush . Witch.tryFrom @Int.Int32 @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Int32 Word32"
~: let f = hush . Witch.tryFrom @Int.Int32 @Word.Word32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f (-1) ~?= Nothing
]
, "TryFrom Int32 Word64"
~: let f = hush . Witch.tryFrom @Int.Int32 @Word.Word64
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f (-1) ~?= Nothing
]
, "TryFrom Int32 Word"
~: let f = hush . Witch.tryFrom @Int.Int32 @Word
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f (-1) ~?= Nothing
]
, "TryFrom Int32 Natural"
~: let f = hush . Witch.tryFrom @Int.Int32 @Natural.Natural
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f (-1) ~?= Nothing
]
, "TryFrom Int32 Float"
~: let f = hush . Witch.tryFrom @Int.Int32 @Float
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (-16777215) ~?= Just (-16777215)
, f (-16777216) ~?= Nothing
]
, "From Int32 Double"
~: let f = Witch.from @Int.Int32 @Double
in
[ f 0 ~?= 0
, f 2147483647 ~?= 2147483647
, f (-2147483648) ~?= (-2147483648)
]
-- Int64
, "TryFrom Int64 Int8"
~: let f = hush . Witch.tryFrom @Int.Int64 @Int.Int8
in
[ f 0 ~?= Just 0
, f 127 ~?= Just 127
, f 128 ~?= Nothing
, f (-128) ~?= Just (-128)
, f (-129) ~?= Nothing
]
, "TryFrom Int64 Int16"
~: let f = hush . Witch.tryFrom @Int.Int64 @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
, f (-32768) ~?= Just (-32768)
, f (-32769) ~?= Nothing
]
, "TryFrom Int64 Int32"
~: let f = hush . Witch.tryFrom @Int.Int64 @Int.Int32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f 2147483648 ~?= Nothing
, f (-2147483648) ~?= Just (-2147483648)
, f (-2147483649) ~?= Nothing
]
, "TryFrom Int64 Int"
~: let f = hush . Witch.tryFrom @Int.Int64 @Int
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int
in
if toInteger x >= 9223372036854775807
then f 9223372036854775807
~?= Just 9223372036854775807
else f (fromIntegral x) ~?= Just x
, let x = minBound :: Int
in
if toInteger x <= (-9223372036854775808)
then f (-9223372036854775808)
~?= Just (-9223372036854775808)
else f (fromIntegral x) ~?= Just x
]
, "From Int64 Integer"
~: let f = Witch.from @Int.Int64 @Integer
in
[ f 0 ~?= 0
, f 9223372036854775807 ~?= 9223372036854775807
, f (-9223372036854775808) ~?= (-9223372036854775808)
]
, "TryFrom Int64 Word8"
~: let f = hush . Witch.tryFrom @Int.Int64 @Word.Word8
in
[ f 0 ~?= Just 0
, f 255 ~?= Just 255
, f 256 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Int64 Word16"
~: let f = hush . Witch.tryFrom @Int.Int64 @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Int64 Word32"
~: let f = hush . Witch.tryFrom @Int.Int64 @Word.Word32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f (-1) ~?= Nothing
]
, "TryFrom Int64 Word64"
~: let f = hush . Witch.tryFrom @Int.Int64 @Word.Word64
in
[ f 0 ~?= Just 0
, f 9223372036854775807 ~?= Just 9223372036854775807
, f (-1) ~?= Nothing
]
, "TryFrom Int64 Word"
~: let f = hush . Witch.tryFrom @Int.Int64 @Word
in
[ f 0 ~?= Just 0
, let x = maxBound :: Word
in
if toInteger x >= 9223372036854775807
then f 9223372036854775807
~?= Just 9223372036854775807
else f (fromIntegral x) ~?= Just x
, f (-1) ~?= Nothing
]
, "TryFrom Int64 Natural"
~: let f = hush . Witch.tryFrom @Int.Int64 @Natural.Natural
in
[ f 0 ~?= Just 0
, f 9223372036854775807 ~?= Just 9223372036854775807
, f (-1) ~?= Nothing
]
, "TryFrom Int64 Float"
~: let f = hush . Witch.tryFrom @Int.Int64 @Float
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (-16777215) ~?= Just (-16777215)
, f (-16777216) ~?= Nothing
]
, "TryFrom Int64 Double"
~: let f = hush . Witch.tryFrom @Int.Int64 @Double
in
[ f 0 ~?= Just 0
, f 9007199254740991 ~?= Just 9007199254740991
, f 9007199254740992 ~?= Nothing
, f (-9007199254740991) ~?= Just (-9007199254740991)
, f (-9007199254740992) ~?= Nothing
]
-- Int
, "TryFrom Int Int8"
~: let f = hush . Witch.tryFrom @Int @Int.Int8
in
[ f 0 ~?= Just 0
, f 127 ~?= Just 127
, f 128 ~?= Nothing
, f (-128) ~?= Just (-128)
, f (-129) ~?= Nothing
]
, "TryFrom Int Int16"
~: let f = hush . Witch.tryFrom @Int @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
, f (-32768) ~?= Just (-32768)
, f (-32769) ~?= Nothing
]
, "TryFrom Int Int32"
~: let f = hush . Witch.tryFrom @Int @Int.Int32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, let x = maxBound :: Int
in
if toInteger x >= 2147483648
then f 2147483648 ~?= Nothing
else f x ~?= Just (fromIntegral x)
, f (-2147483648) ~?= Just (-2147483648)
, let x = minBound :: Int
in
if toInteger x <= (-2147483649)
then f (-2147483649) ~?= Nothing
else f x ~?= Just (fromIntegral x)
]
, "From Int Int64"
~: let f = Witch.from @Int @Int.Int64
in
[ f 0 ~?= 0
, f maxBound ~?= fromIntegral (maxBound :: Int)
, f minBound ~?= fromIntegral (minBound :: Int)
]
, "From Int Integer"
~: let f = Witch.from @Int @Integer
in
[ f 0 ~?= 0
, f maxBound ~?= fromIntegral (maxBound :: Int)
, f minBound ~?= fromIntegral (minBound :: Int)
]
, "TryFrom Int Word8"
~: let f = hush . Witch.tryFrom @Int @Word.Word8
in
[ f 0 ~?= Just 0
, f 255 ~?= Just 255
, f 256 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Int Word16"
~: let f = hush . Witch.tryFrom @Int @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Int Word32"
~: let f = hush . Witch.tryFrom @Int @Word.Word32
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int
in
if toInteger x >= 4294967295
then f 4294967295 ~?= Just 4294967295
else f x ~?= Just (fromIntegral x)
, let x = maxBound :: Int
in
if toInteger x >= 4294967296
then f 4294967296 ~?= Nothing
else f x ~?= Just (fromIntegral x)
, f (-1) ~?= Nothing
]
, "TryFrom Int Word64"
~: let f = hush . Witch.tryFrom @Int @Word.Word64
in
[ f 0 ~?= Just 0
, f maxBound ~?= Just (fromIntegral (maxBound :: Int))
, f (-1) ~?= Nothing
]
, "TryFrom Int Word"
~: let f = hush . Witch.tryFrom @Int @Word
in
[ f 0 ~?= Just 0
, f maxBound ~?= Just (fromIntegral (maxBound :: Int))
, f (-1) ~?= Nothing
]
, "TryFrom Int Natural"
~: let f = hush . Witch.tryFrom @Int @Natural.Natural
in
[ f 0 ~?= Just 0
, f maxBound ~?= Just (fromIntegral (maxBound :: Int))
, f (-1) ~?= Nothing
]
, "TryFrom Int Float"
~: let f = hush . Witch.tryFrom @Int @Float
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (-16777215) ~?= Just (-16777215)
, f (-16777216) ~?= Nothing
]
, "TryFrom Int Double"
~: let f = hush . Witch.tryFrom @Int @Double
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int
in
if toInteger x >= 9007199254740991
then f 9007199254740991 ~?= Just 9007199254740991
else f x ~?= Just (fromIntegral x)
, let x = maxBound :: Int
in
if toInteger x >= 9007199254740992
then f 9007199254740992 ~?= Nothing
else f x ~?= Just (fromIntegral x)
, let x = minBound :: Int
in
if toInteger x <= (-9007199254740991)
then f (-9007199254740991)
~?= Just (-9007199254740991)
else f x ~?= Just (fromIntegral x)
, let x = minBound :: Int
in
if toInteger x <= (-9007199254740992)
then f (-9007199254740992) ~?= Nothing
else f x ~?= Just (fromIntegral x)
]
-- Integer
, "TryFrom Integer Int8"
~: let f = hush . Witch.tryFrom @Integer @Int.Int8
in
[ f 0 ~?= Just 0
, f 127 ~?= Just 127
, f 128 ~?= Nothing
, f (-128) ~?= Just (-128)
, f (-129) ~?= Nothing
]
, "TryFrom Integer Int16"
~: let f = hush . Witch.tryFrom @Integer @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
, f (-32768) ~?= Just (-32768)
, f (-32769) ~?= Nothing
]
, "TryFrom Integer Int32"
~: let f = hush . Witch.tryFrom @Integer @Int.Int32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f 2147483648 ~?= Nothing
, f (-2147483648) ~?= Just (-2147483648)
, f (-2147483649) ~?= Nothing
]
, "TryFrom Integer Int64"
~: let f = hush . Witch.tryFrom @Integer @Int.Int64
in
[ f 0 ~?= Just 0
, f 9223372036854775807 ~?= Just 9223372036854775807
, f 9223372036854775808 ~?= Nothing
, f (-9223372036854775808) ~?= Just (-9223372036854775808)
, f (-9223372036854775809) ~?= Nothing
]
, "TryFrom Integer Int"
~: let f = hush . Witch.tryFrom @Integer @Int
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int in f (fromIntegral x) ~?= Just x
, let x = toInteger (maxBound :: Int) + 1
in f x ~?= Nothing
, let x = minBound :: Int in f (fromIntegral x) ~?= Just x
, let x = toInteger (minBound :: Int) - 1
in f x ~?= Nothing
]
, "TryFrom Integer Word8"
~: let f = hush . Witch.tryFrom @Integer @Word.Word8
in
[ f 0 ~?= Just 0
, f 255 ~?= Just 255
, f 256 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Integer Word16"
~: let f = hush . Witch.tryFrom @Integer @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Integer Word32"
~: let f = hush . Witch.tryFrom @Integer @Word.Word32
in
[ f 0 ~?= Just 0
, f 4294967295 ~?= Just 4294967295
, f 4294967296 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Integer Word64"
~: let f = hush . Witch.tryFrom @Integer @Word.Word64
in
[ f 0 ~?= Just 0
, f 18446744073709551615 ~?= Just 18446744073709551615
, f 18446744073709551616 ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Integer Word"
~: let f = hush . Witch.tryFrom @Integer @Word
in
[ f 0 ~?= Just 0
, let x = maxBound :: Word in f (fromIntegral x) ~?= Just x
, let x = toInteger (maxBound :: Word) + 1
in f x ~?= Nothing
, f (-1) ~?= Nothing
]
, "TryFrom Integer Natural"
~: let f = hush . Witch.tryFrom @Integer @Natural.Natural
in
[ f 0 ~?= Just 0
, f 18446744073709551616 ~?= Just 18446744073709551616
, f (-1) ~?= Nothing
]
, "TryFrom Integer Float"
~: let f = hush . Witch.tryFrom @Integer @Float
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (-16777215) ~?= Just (-16777215)
, f (-16777216) ~?= Nothing
]
, "TryFrom Integer Double"
~: let f = hush . Witch.tryFrom @Integer @Double
in
[ f 0 ~?= Just 0
, f 9007199254740991 ~?= Just 9007199254740991
, f 9007199254740992 ~?= Nothing
, f (-9007199254740991) ~?= Just (-9007199254740991)
, f (-9007199254740992) ~?= Nothing
]
-- Word8
, "From Word8 Word16"
~: let f = Witch.from @Word.Word8 @Word.Word16
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Word32"
~: let f = Witch.from @Word.Word8 @Word.Word32
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Word64"
~: let f = Witch.from @Word.Word8 @Word.Word64
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Word"
~: let f = Witch.from @Word.Word8 @Word
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Natural"
~: let f = Witch.from @Word.Word8 @Natural.Natural
in [f 0 ~?= 0, f 255 ~?= 255]
, "TryFrom Word8 Int8"
~: let f = hush . Witch.tryFrom @Word.Word8 @Int.Int8
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f 128 ~?= Nothing]
, "From Word8 Int16"
~: let f = Witch.from @Word.Word8 @Int.Int16
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Int32"
~: let f = Witch.from @Word.Word8 @Int.Int32
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Int64"
~: let f = Witch.from @Word.Word8 @Int.Int64
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Int"
~: let f = Witch.from @Word.Word8 @Int
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Integer"
~: let f = Witch.from @Word.Word8 @Integer
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Float"
~: let f = Witch.from @Word.Word8 @Float
in [f 0 ~?= 0, f 255 ~?= 255]
, "From Word8 Double"
~: let f = Witch.from @Word.Word8 @Double
in [f 0 ~?= 0, f 255 ~?= 255]
-- Word16
, "TryFrom Word16 Word8"
~: let f = hush . Witch.tryFrom @Word.Word16 @Word.Word8
in [f 0 ~?= Just 0, f 255 ~?= Just 255, f 256 ~?= Nothing]
, "From Word16 Word32"
~: let f = Witch.from @Word.Word16 @Word.Word32
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "From Word16 Word64"
~: let f = Witch.from @Word.Word16 @Word.Word64
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "From Word16 Word"
~: let f = Witch.from @Word.Word16 @Word
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "From Word16 Natural"
~: let f = Witch.from @Word.Word16 @Natural.Natural
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "TryFrom Word16 Int8"
~: let f = hush . Witch.tryFrom @Word.Word16 @Int.Int8
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f 128 ~?= Nothing]
, "TryFrom Word16 Int16"
~: let f = hush . Witch.tryFrom @Word.Word16 @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
]
, "From Word16 Int32"
~: let f = Witch.from @Word.Word16 @Int.Int32
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "From Word16 Int64"
~: let f = Witch.from @Word.Word16 @Int.Int64
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "From Word16 Int"
~: let f = Witch.from @Word.Word16 @Int
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "From Word16 Integer"
~: let f = Witch.from @Word.Word16 @Integer
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "From Word16 Float"
~: let f = Witch.from @Word.Word16 @Float
in [f 0 ~?= 0, f 65535 ~?= 65535]
, "From Word16 Double"
~: let f = Witch.from @Word.Word16 @Double
in [f 0 ~?= 0, f 65535 ~?= 65535]
-- Word32
, "TryFrom Word32 Word8"
~: let f = hush . Witch.tryFrom @Word.Word32 @Word.Word8
in [f 0 ~?= Just 0, f 255 ~?= Just 255, f 256 ~?= Nothing]
, "TryFrom Word32 Word16"
~: let f = hush . Witch.tryFrom @Word.Word32 @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
]
, "From Word32 Word64"
~: let f = Witch.from @Word.Word32 @Word.Word64
in [f 0 ~?= 0, f 4294967295 ~?= 4294967295]
, "TryFrom Word32 Word"
~: let f = hush . Witch.tryFrom @Word.Word32 @Word
in [f 0 ~?= Just 0, f 4294967295 ~?= Just 4294967295]
, "From Word32 Natural"
~: let f = Witch.from @Word.Word32 @Natural.Natural
in [f 0 ~?= 0, f 4294967295 ~?= 4294967295]
, "TryFrom Word32 Int8"
~: let f = hush . Witch.tryFrom @Word.Word32 @Int.Int8
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f 128 ~?= Nothing]
, "TryFrom Word32 Int16"
~: let f = hush . Witch.tryFrom @Word.Word32 @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
]
, "TryFrom Word32 Int32"
~: let f = hush . Witch.tryFrom @Word.Word32 @Int.Int32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f 2147483648 ~?= Nothing
]
, "From Word32 Int64"
~: let f = Witch.from @Word.Word32 @Int.Int64
in [f 0 ~?= 0, f 4294967295 ~?= 4294967295]
, "TryFrom Word32 Int"
~: let f = hush . Witch.tryFrom @Word.Word32 @Int
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int
in
if toInteger x >= 4294967295
then f 4294967295 ~?= Just 4294967295
else f (fromIntegral x) ~?= Just x
]
, "From Word32 Integer"
~: let f = Witch.from @Word.Word32 @Integer
in [f 0 ~?= 0, f 4294967295 ~?= 4294967295]
, "TryFrom Word32 Float"
~: let f = hush . Witch.tryFrom @Word.Word32 @Float
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
]
, "From Word32 Double"
~: let f = Witch.from @Word.Word32 @Double
in [f 0 ~?= 0, f 4294967295 ~?= 4294967295]
-- Word64
, "TryFrom Word64 Word8"
~: let f = hush . Witch.tryFrom @Word.Word64 @Word.Word8
in [f 0 ~?= Just 0, f 255 ~?= Just 255, f 256 ~?= Nothing]
, "TryFrom Word64 Word16"
~: let f = hush . Witch.tryFrom @Word.Word64 @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
]
, "TryFrom Word64 Word32"
~: let f = hush . Witch.tryFrom @Word.Word64 @Word.Word32
in
[ f 0 ~?= Just 0
, f 4294967295 ~?= Just 4294967295
, f 4294967296 ~?= Nothing
]
, "TryFrom Word64 Word"
~: let f = hush . Witch.tryFrom @Word.Word64 @Word
in
[ f 0 ~?= Just 0
, let x = maxBound :: Word
in
if toInteger x >= 18446744073709551615
then f 18446744073709551615
~?= Just 18446744073709551615
else f (fromIntegral x) ~?= Just x
]
, "From Word64 Natural"
~: let f = Witch.from @Word.Word64 @Natural.Natural
in
[f 0 ~?= 0, f 18446744073709551615 ~?= 18446744073709551615]
, "TryFrom Word64 Int8"
~: let f = hush . Witch.tryFrom @Word.Word64 @Int.Int8
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f 128 ~?= Nothing]
, "TryFrom Word64 Int16"
~: let f = hush . Witch.tryFrom @Word.Word64 @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
]
, "TryFrom Word64 Int32"
~: let f = hush . Witch.tryFrom @Word.Word64 @Int.Int32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f 2147483648 ~?= Nothing
]
, "TryFrom Word64 Int64"
~: let f = hush . Witch.tryFrom @Word.Word64 @Int.Int64
in
[ f 0 ~?= Just 0
, f 9223372036854775807 ~?= Just 9223372036854775807
, f 9223372036854775808 ~?= Nothing
]
, "TryFrom Word64 Int"
~: let f = hush . Witch.tryFrom @Word.Word64 @Int
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int
in
hush (Witch.tryFrom @Word.Word64 @Int (fromIntegral x))
~?= Just x
, let x = fromIntegral (maxBound :: Int) + 1 :: Word.Word64
in hush (Witch.tryFrom @Word.Word64 @Int x) ~?= Nothing
]
, "From Word64 Integer"
~: let f = Witch.from @Word.Word64 @Integer
in
[f 0 ~?= 0, f 18446744073709551615 ~?= 18446744073709551615]
, "TryFrom Word64 Float"
~: let f = hush . Witch.tryFrom @Word.Word64 @Float
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
]
, "TryFrom Word64 Double"
~: let f = hush . Witch.tryFrom @Word.Word64 @Double
in
[ f 0 ~?= Just 0
, f 9007199254740991 ~?= Just 9007199254740991
, f 9007199254740992 ~?= Nothing
]
-- Word
, "TryFrom Word Word8"
~: let f = hush . Witch.tryFrom @Word @Word.Word8
in [f 0 ~?= Just 0, f 255 ~?= Just 255, f 256 ~?= Nothing]
, "TryFrom Word Word16"
~: let f = hush . Witch.tryFrom @Word @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
]
, "TryFrom Word Word32"
~: let f = hush . Witch.tryFrom @Word @Word.Word32
in
[ f 0 ~?= Just 0
, f 4294967295 ~?= Just 4294967295
, let x = maxBound :: Word
in
if toInteger x >= 4294967296
then f 4294967296 ~?= Nothing
else f x ~?= Just (fromIntegral x)
]
, "From Word Word64"
~: let f = Witch.from @Word @Word.Word64
in [f 0 ~?= 0, f maxBound ~?= fromIntegral (maxBound :: Word)]
, "From Word Natural"
~: let f = Witch.from @Word @Natural.Natural
in [f 0 ~?= 0, f maxBound ~?= fromIntegral (maxBound :: Word)]
, "TryFrom Word Int8"
~: let f = hush . Witch.tryFrom @Word @Int.Int8
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f 128 ~?= Nothing]
, "TryFrom Word Int16"
~: let f = hush . Witch.tryFrom @Word @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
]
, "TryFrom Word Int32"
~: let f = hush . Witch.tryFrom @Word @Int.Int32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f 2147483648 ~?= Nothing
]
, "TryFrom Word Int64"
~: let f = hush . Witch.tryFrom @Word @Int.Int64
in
[ f 0 ~?= Just 0
, let x = maxBound :: Word
in
if toInteger x >= 9223372036854775807
then f 9223372036854775807
~?= Just 9223372036854775807
else f x ~?= Just (fromIntegral x)
, let x = maxBound :: Word
in
if toInteger x >= 9223372036854775808
then f 9223372036854775808 ~?= Nothing
else f x ~?= Just (fromIntegral x)
]
, "TryFrom Word Int"
~: let f = hush . Witch.tryFrom @Word @Int
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int
in
hush (Witch.tryFrom @Word @Int (fromIntegral x))
~?= Just x
, let x = fromIntegral (maxBound :: Int) + 1 :: Word
in hush (Witch.tryFrom @Word @Int x) ~?= Nothing
]
, "From Word Integer"
~: let f = Witch.from @Word @Integer
in [f 0 ~?= 0, f maxBound ~?= fromIntegral (maxBound :: Word)]
, "TryFrom Word Float"
~: let f = hush . Witch.tryFrom @Word @Float
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
]
, "TryFrom Word Double"
~: let f = hush . Witch.tryFrom @Word @Double
in
[ f 0 ~?= Just 0
, let x = maxBound :: Word
in
if toInteger x >= 9007199254740991
then f 9007199254740991 ~?= Just 9007199254740991
else f x ~?= Just (fromIntegral x)
, let x = maxBound :: Word
in
if toInteger x >= 9007199254740992
then f 9007199254740992 ~?= Nothing
else f x ~?= Just (fromIntegral x)
]
-- Natural
, "TryFrom Natural Word8"
~: let f = hush . Witch.tryFrom @Natural.Natural @Word.Word8
in [f 0 ~?= Just 0, f 255 ~?= Just 255, f 256 ~?= Nothing]
, "TryFrom Natural Word16"
~: let f = hush . Witch.tryFrom @Natural.Natural @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
]
, "TryFrom Natural Word32"
~: let f = hush . Witch.tryFrom @Natural.Natural @Word.Word32
in
[ f 0 ~?= Just 0
, f 4294967295 ~?= Just 4294967295
, f 4294967296 ~?= Nothing
]
, "TryFrom Natural Word64"
~: let f = hush . Witch.tryFrom @Natural.Natural @Word.Word64
in
[ f 0 ~?= Just 0
, f 18446744073709551615 ~?= Just 18446744073709551615
, f 18446744073709551616 ~?= Nothing
]
, "TryFrom Natural Word"
~: let f = hush . Witch.tryFrom @Natural.Natural @Word
in
[ f 0 ~?= Just 0
, let x = maxBound :: Word
in
hush
(Witch.tryFrom @Natural.Natural @Word
(fromIntegral x)
)
~?= Just x
, let
x =
fromIntegral (maxBound :: Word) + 1 :: Natural.Natural
in
hush (Witch.tryFrom @Natural.Natural @Word x)
~?= Nothing
]
, "TryFrom Natural Int8"
~: let f = hush . Witch.tryFrom @Natural.Natural @Int.Int8
in [f 0 ~?= Just 0, f 127 ~?= Just 127, f 128 ~?= Nothing]
, "TryFrom Natural Int16"
~: let f = hush . Witch.tryFrom @Natural.Natural @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
]
, "TryFrom Natural Int32"
~: let f = hush . Witch.tryFrom @Natural.Natural @Int.Int32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f 2147483648 ~?= Nothing
]
, "TryFrom Natural Int64"
~: let f = hush . Witch.tryFrom @Natural.Natural @Int.Int64
in
[ f 0 ~?= Just 0
, f 9223372036854775807 ~?= Just 9223372036854775807
, f 9223372036854775808 ~?= Nothing
]
, "TryFrom Natural Int"
~: let f = hush . Witch.tryFrom @Natural.Natural @Int
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int
in
hush
(Witch.tryFrom @Natural.Natural @Int
(fromIntegral x)
)
~?= Just x
, let
x =
fromIntegral (maxBound :: Int) + 1 :: Natural.Natural
in
hush (Witch.tryFrom @Natural.Natural @Int x) ~?= Nothing
]
, "From Natural Integer"
~: let f = Witch.from @Natural.Natural @Integer
in [f 0 ~?= 0, f 9223372036854775808 ~?= 9223372036854775808]
, "TryFrom Natural Float"
~: let f = hush . Witch.tryFrom @Natural.Natural @Float
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
]
, "TryFrom Natural Double"
~: let f = hush . Witch.tryFrom @Natural.Natural @Double
in
[ f 0 ~?= Just 0
, f 9007199254740991 ~?= Just 9007199254740991
, f 9007199254740992 ~?= Nothing
]
-- Float
, "TryFrom Float Int8"
~: let f = hush . Witch.tryFrom @Float @Int.Int8
in
[ f 0 ~?= Just 0
, f 127 ~?= Just 127
, f 128 ~?= Nothing
, f (-128) ~?= Just (-128)
, f (-129) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Int16"
~: let f = hush . Witch.tryFrom @Float @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
, f (-32768) ~?= Just (-32768)
, f (-32769) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Int32"
~: let f = hush . Witch.tryFrom @Float @Int.Int32
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (-16777215) ~?= Just (-16777215)
, f (-16777216) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Int64"
~: let f = hush . Witch.tryFrom @Float @Int.Int64
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (-16777215) ~?= Just (-16777215)
, f (-16777216) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Int"
~: let f = hush . Witch.tryFrom @Float @Int
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (-16777215) ~?= Just (-16777215)
, f (-16777216) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Integer"
~: let f = hush . Witch.tryFrom @Float @Integer
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (-16777215) ~?= Just (-16777215)
, f (-16777216) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Word8"
~: let f = hush . Witch.tryFrom @Float @Word.Word8
in
[ f 0 ~?= Just 0
, f 255 ~?= Just 255
, f 256 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Word16"
~: let f = hush . Witch.tryFrom @Float @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Word32"
~: let f = hush . Witch.tryFrom @Float @Word.Word32
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Word64"
~: let f = hush . Witch.tryFrom @Float @Word.Word64
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Word"
~: let f = hush . Witch.tryFrom @Float @Word
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Natural"
~: let f = hush . Witch.tryFrom @Float @Natural.Natural
in
[ f 0 ~?= Just 0
, f 16777215 ~?= Just 16777215
, f 16777216 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Float Rational"
~: let f = hush . Witch.tryFrom @Float @Rational
in
[ f 0 ~?= Just 0
, f (-0) ~?= Just 0
, f 0.5 ~?= Just 0.5
, f (-0.5) ~?= Just (-0.5)
, f 16777215 ~?= Just 16777215
, f (-16777215) ~?= Just (-16777215)
, f 16777216 ~?= Just 16777216
, f (-16777216) ~?= Just (-16777216)
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
, f 0.1 ~?= Just 0.1
, f (-0.1) ~?= Just (-0.1)
]
, "From Float Double"
~: let f = Witch.from @Float @Double
in
[ f 0 ~?= 0
, f 0.5 ~?= 0.5
, f (-0.5) ~?= (-0.5)
, TestCase
$ let x = f (0 / 0) in assertBool (show x) $ isNaN x
, f (1 / 0) ~?= (1 / 0)
, f (-1 / 0) ~?= (-1 / 0)
]
-- Double
, "TryFrom Double Int8"
~: let f = hush . Witch.tryFrom @Double @Int.Int8
in
[ f 0 ~?= Just 0
, f 127 ~?= Just 127
, f 128 ~?= Nothing
, f (-128) ~?= Just (-128)
, f (-129) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Int16"
~: let f = hush . Witch.tryFrom @Double @Int.Int16
in
[ f 0 ~?= Just 0
, f 32767 ~?= Just 32767
, f 32768 ~?= Nothing
, f (-32768) ~?= Just (-32768)
, f (-32769) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Int32"
~: let f = hush . Witch.tryFrom @Double @Int.Int32
in
[ f 0 ~?= Just 0
, f 2147483647 ~?= Just 2147483647
, f 2147483648 ~?= Nothing
, f (-2147483648) ~?= Just (-2147483648)
, f (-2147483649) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Int64"
~: let f = hush . Witch.tryFrom @Double @Int.Int64
in
[ f 0 ~?= Just 0
, f 9007199254740991 ~?= Just 9007199254740991
, f 9007199254740992 ~?= Nothing
, f (-9007199254740991) ~?= Just (-9007199254740991)
, f (-9007199254740992) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Int"
~: let f = hush . Witch.tryFrom @Double @Int
in
[ f 0 ~?= Just 0
, let x = maxBound :: Int
in
if toInteger x >= 9007199254740991
then f 9007199254740991 ~?= Just 9007199254740991
else f (fromIntegral x) ~?= Just x
, f 9007199254740992 ~?= Nothing
, let x = minBound :: Int
in
if toInteger x <= (-9007199254740991)
then f (-9007199254740991)
~?= Just (-9007199254740991)
else f (fromIntegral x) ~?= Just x
, f (-9007199254740992) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Integer"
~: let f = hush . Witch.tryFrom @Double @Integer
in
[ f 0 ~?= Just 0
, f 9007199254740991 ~?= Just 9007199254740991
, f 9007199254740992 ~?= Nothing
, f (-9007199254740991) ~?= Just (-9007199254740991)
, f (-9007199254740992) ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Word8"
~: let f = hush . Witch.tryFrom @Double @Word.Word8
in
[ f 0 ~?= Just 0
, f 255 ~?= Just 255
, f 256 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Word16"
~: let f = hush . Witch.tryFrom @Double @Word.Word16
in
[ f 0 ~?= Just 0
, f 65535 ~?= Just 65535
, f 65536 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Word32"
~: let f = hush . Witch.tryFrom @Double @Word.Word32
in
[ f 0 ~?= Just 0
, f 4294967295 ~?= Just 4294967295
, f 4294967296 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Word64"
~: let f = hush . Witch.tryFrom @Double @Word.Word64
in
[ f 0 ~?= Just 0
, f 9007199254740991 ~?= Just 9007199254740991
, f 9007199254740992 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Word"
~: let f = hush . Witch.tryFrom @Double @Word
in
[ f 0 ~?= Just 0
, let x = maxBound :: Word
in
if toInteger x >= 9007199254740991
then f 9007199254740991 ~?= Just 9007199254740991
else f (fromIntegral x) ~?= Just x
, f 9007199254740992 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Natural"
~: let f = hush . Witch.tryFrom @Double @Natural.Natural
in
[ f 0 ~?= Just 0
, f 9007199254740991 ~?= Just 9007199254740991
, f 9007199254740992 ~?= Nothing
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
]
, "TryFrom Double Rational"
~: let f = hush . Witch.tryFrom @Double @Rational
in
[ f 0 ~?= Just 0
, f (-0) ~?= Just 0
, f 0.5 ~?= Just 0.5
, f (-0.5) ~?= Just (-0.5)
, f 9007199254740991 ~?= Just 9007199254740991
, f (-9007199254740991) ~?= Just (-9007199254740991)
, f 9007199254740992 ~?= Just 9007199254740992
, f (-9007199254740992) ~?= Just (-9007199254740992)
, f (0 / 0) ~?= Nothing
, f (1 / 0) ~?= Nothing
, f (-1 / 0) ~?= Nothing
, f 0.1 ~?= Just 0.1
, f (-0.1) ~?= Just (-0.1)
]
, "From Double Float"
~: let f = Witch.from @Double @Float
in
[ f 0 ~?= 0
, f 0.5 ~?= 0.5
, f (-0.5) ~?= (-0.5)
, TestCase
$ let x = f (0 / 0) in assertBool (show x) $ isNaN x
, f (1 / 0) ~?= (1 / 0)
, f (-1 / 0) ~?= (-1 / 0)
]
-- Ratio
, "From a (Ratio a)"
~: let f = Witch.from @Int @(Ratio.Ratio Int)
in [Witch.from @Integer @Rational 0 ~?= 0, f 0 ~?= 0]
, "TryFrom (Ratio a) a"
~: let f = hush . Witch.tryFrom @(Ratio.Ratio Int) @Int
in
[ hush (Witch.tryFrom @Rational @Integer 0) ~?= Just 0
, hush (Witch.tryFrom @Rational @Integer 0.5) ~?= Nothing
, f 0 ~?= Just 0
, f 0.5 ~?= Nothing
]
, "From Rational Float"
~: let f = Witch.from @Rational @Float
in
[ f 0 ~?= 0
, f 0.5 ~?= 0.5
, f (-0.5) ~?= (-0.5)
, f 0.1 ~?= 0.1
, f (-0.1) ~?= (-0.1)
]
, "From Rational Double"
~: let f = Witch.from @Rational @Double
in
[ f 0 ~?= 0
, f 0.5 ~?= 0.5
, f (-0.5) ~?= (-0.5)
, f 0.1 ~?= 0.1
, f (-0.1) ~?= (-0.1)
]
, "TryFrom Rational (Fixed a)"
~: let f = hush . Witch.tryFrom @Rational @Fixed.Deci
in
[ hush (Witch.tryFrom @Rational @Fixed.Uni 1) ~?= Just 1
, hush (Witch.tryFrom @Rational @Fixed.Uni 1.2) ~?= Nothing
, f 0.1 ~?= Just 0.1
, f 1.2 ~?= Just 1.2
, f 12.3 ~?= Just 12.3
, f 0.12 ~?= Nothing
]
-- Fixed
, "From Integer (Fixed a)"
~: let f = Witch.from @Integer @Fixed.Deci
in
[ Witch.from @Integer @Fixed.Uni 1 ~?= 1
, f 1 ~?= 0.1
, f 10 ~?= 1
, f 120 ~?= 12
]
, "From (Fixed a) Integer"
~: let f = Witch.from @Fixed.Deci @Integer
in
[ Witch.from @Fixed.Uni @Integer 1 ~?= 1
, f 0.1 ~?= 1
, f 1 ~?= 10
, f 12 ~?= 120
]
, "From (Fixed a) Rational"
~: let f = Witch.from @Fixed.Deci @Rational
in
[ Witch.from @Fixed.Uni @Rational 1 ~?= 1
, f 0.1 ~?= 0.1
, f 1 ~?= 1
, f 12 ~?= 12
]
-- Complex
, "From a (Complex a)"
~: let f = Witch.from @Float @(Complex.Complex Float)
in
[ Witch.from @Double @(Complex.Complex Double) 1 ~?= 1
, f 1 ~?= 1
]
, "TryFrom (Complex a) a"
~: let f = hush . Witch.tryFrom @(Complex.Complex Float) @Float
in
[ hush (Witch.tryFrom @(Complex.Complex Double) @Double 1)
~?= Just 1
, hush
(Witch.tryFrom @(Complex.Complex Double) @Double
(0 Complex.:+ 1)
)
~?= Nothing
, f 1 ~?= Just 1
, f (0 Complex.:+ 1) ~?= Nothing
]
-- NonEmpty
, "TryFrom [a] (NonEmpty a)"
~: let f = hush . Witch.tryFrom @[Int] @(NonEmpty.NonEmpty Int)
in
[ f [] ~?= Nothing
, f [1] ~?= Just (1 NonEmpty.:| [])
, f [1, 2] ~?= Just (1 NonEmpty.:| [2])
]
, "From (NonEmpty a) [a]"
~: let f = Witch.from @(NonEmpty.NonEmpty Int) @[Int]
in
[ f (1 NonEmpty.:| []) ~?= [1]
, f (1 NonEmpty.:| [2]) ~?= [1, 2]
]
-- Set
, "From [a] (Set a)"
~: let f = Witch.from @[Char] @(Set.Set Char)
in
[ f [] ~?= Set.fromList []
, f ['a'] ~?= Set.fromList ['a']
, f ['a', 'b'] ~?= Set.fromList ['a', 'b']
, f ['a', 'a'] ~?= Set.fromList ['a']
]
, "From (Set a) [a]"
~: let f = Witch.from @(Set.Set Char) @[Char]
in
[ f (Set.fromList []) ~?= []
, f (Set.fromList ['a']) ~?= ['a']
, f (Set.fromList ['a', 'b']) ~?= ['a', 'b']
]
-- IntSet
, "From [Int] IntSet"
~: let f = Witch.from @[Int] @IntSet.IntSet
in
[ f [] ~?= IntSet.fromList []
, f [1] ~?= IntSet.fromList [1]
, f [1, 2] ~?= IntSet.fromList [1, 2]
]
, "From IntSet [Int]"
~: let f = Witch.from @IntSet.IntSet @[Int]
in
[ f (IntSet.fromList []) ~?= []
, f (IntSet.fromList [1]) ~?= [1]
, f (IntSet.fromList [1, 2]) ~?= [1, 2]
]
-- Map
, "From [(k, v)] (Map k v)"
~: let f = Witch.from @[(Char, Int)] @(Map.Map Char Int)
in
[ f [] ~?= Map.empty
, f [('a', 1)] ~?= Map.fromList [('a', 1)]
, f [('a', 1), ('b', 2)]
~?= Map.fromList [('a', 1), ('b', 2)]
, f [('a', 1), ('a', 2)] ~?= Map.fromList [('a', 2)]
]
, "From (Map k v) [(k, v)]"
~: let f = Witch.from @(Map.Map Char Int) @[(Char, Int)]
in
[ f Map.empty ~?= []
, f (Map.fromList [('a', 1)]) ~?= [('a', 1)]
, f (Map.fromList [('a', 1), ('b', 2)])
~?= [('a', 1), ('b', 2)]
]
-- IntMap
, "From [(Int, v)] (IntMap v)"
~: let f = Witch.from @[(Int, Char)] @(IntMap.IntMap Char)
in
[ f [] ~?= IntMap.fromList []
, f [(1, 'a')] ~?= IntMap.fromList [(1, 'a')]
, f [(1, 'a'), (2, 'b')]
~?= IntMap.fromList [(1, 'a'), (2, 'b')]
, f [(1, 'a'), (1, 'b')] ~?= IntMap.fromList [(1, 'b')]
]
, "From (IntMap v) [(Int, v)]"
~: let f = Witch.from @(IntMap.IntMap Char) @[(Int, Char)]
in
[ f (IntMap.fromList []) ~?= []
, f (IntMap.fromList [(1, 'a')]) ~?= [(1, 'a')]
, f (IntMap.fromList [(1, 'a'), (2, 'b')])
~?= [(1, 'a'), (2, 'b')]
]
-- Seq
, "From [a] (Seq a)"
~: let f = Witch.from @[Int] @(Seq.Seq Int)
in
[ f [] ~?= Seq.fromList []
, f [1] ~?= Seq.fromList [1]
, f [1, 2] ~?= Seq.fromList [1, 2]
]
, "From (Seq a) [a]"
~: let f = Witch.from @(Seq.Seq Int) @[Int]
in
[ f (Seq.fromList []) ~?= []
, f (Seq.fromList [1]) ~?= [1]
, f (Seq.fromList [1, 2]) ~?= [1, 2]
]
-- ByteString
, "From [Word8] ByteString"
~: let f = Witch.from @[Word.Word8] @ByteString.ByteString
in
[ f [] ~?= ByteString.pack []
, f [0x00] ~?= ByteString.pack [0x00]
, f [0x0f, 0xf0] ~?= ByteString.pack [0x0f, 0xf0]
]
, "From ByteString [Word8]"
~: let f = Witch.from @ByteString.ByteString @[Word.Word8]
in
[ f (ByteString.pack []) ~?= []
, f (ByteString.pack [0x00]) ~?= [0x00]
, f (ByteString.pack [0x0f, 0xf0]) ~?= [0x0f, 0xf0]
]
, "From ByteString LazyByteString"
~: let
f =
Witch.from @ByteString.ByteString
@LazyByteString.ByteString
in
[ f (ByteString.pack []) ~?= LazyByteString.pack []
, f (ByteString.pack [0x00]) ~?= LazyByteString.pack [0x00]
, f (ByteString.pack [0x0f, 0xf0])
~?= LazyByteString.pack [0x0f, 0xf0]
]
, "From ByteString ShortByteString"
~: let
f =
Witch.from @ByteString.ByteString
@ShortByteString.ShortByteString
in
[ f (ByteString.pack []) ~?= ShortByteString.pack []
, f (ByteString.pack [0x00]) ~?= ShortByteString.pack [0x00]
, f (ByteString.pack [0x0f, 0xf0])
~?= ShortByteString.pack [0x0f, 0xf0]
]
, "TryFrom ByteString Text"
~: let
f = hush . Witch.tryFrom @ByteString.ByteString @Text.Text
in
[ f (ByteString.pack []) ~?= Just (Text.pack "")
, f (ByteString.pack [0x61]) ~?= Just (Text.pack "a")
, f (ByteString.pack [0xff]) ~?= Nothing
]
, "TryFrom ByteString LazyText"
~: let
f =
hush . Witch.tryFrom @ByteString.ByteString @LazyText.Text
in
[ f (ByteString.pack []) ~?= Just (LazyText.pack "")
, f (ByteString.pack [0x61]) ~?= Just (LazyText.pack "a")
, f (ByteString.pack [0xff]) ~?= Nothing
]
, "TryFrom ByteString String"
~: let f = hush . Witch.tryFrom @ByteString.ByteString @String
in
[ f (ByteString.pack []) ~?= Just ""
, f (ByteString.pack [0x61]) ~?= Just "a"
, f (ByteString.pack [0xff]) ~?= Nothing
]
-- LazyByteString
, "From [Word8] LazyByteString"
~: let f = Witch.from @[Word.Word8] @LazyByteString.ByteString
in
[ f [] ~?= LazyByteString.pack []
, f [0x00] ~?= LazyByteString.pack [0x00]
, f [0x0f, 0xf0] ~?= LazyByteString.pack [0x0f, 0xf0]
]
, "From LazyByteString [Word8]"
~: let f = Witch.from @LazyByteString.ByteString @[Word.Word8]
in
[ f (LazyByteString.pack []) ~?= []
, f (LazyByteString.pack [0x00]) ~?= [0x00]
, f (LazyByteString.pack [0x0f, 0xf0]) ~?= [0x0f, 0xf0]
]
, "From LazyByteString ByteString"
~: let
f =
Witch.from @LazyByteString.ByteString
@ByteString.ByteString
in
[ f (LazyByteString.pack []) ~?= ByteString.pack []
, f (LazyByteString.pack [0x00]) ~?= ByteString.pack [0x00]
, f (LazyByteString.pack [0x0f, 0xf0])
~?= ByteString.pack [0x0f, 0xf0]
]
, "TryFrom LazyByteString LazyText"
~: let
f =
hush
. Witch.tryFrom @LazyByteString.ByteString
@LazyText.Text
in
[ f (LazyByteString.pack []) ~?= Just (LazyText.pack "")
, f (LazyByteString.pack [0x61])
~?= Just (LazyText.pack "a")
, f (LazyByteString.pack [0xff]) ~?= Nothing
]
, "TryFrom LazyByteString Text"
~: let
f =
hush . Witch.tryFrom @LazyByteString.ByteString @Text.Text
in
[ f (LazyByteString.pack []) ~?= Just (Text.pack "")
, f (LazyByteString.pack [0x61]) ~?= Just (Text.pack "a")
, f (LazyByteString.pack [0xff]) ~?= Nothing
]
, "TryFrom LazyByteString String"
~: let
f = hush . Witch.tryFrom @LazyByteString.ByteString @String
in
[ f (LazyByteString.pack []) ~?= Just ""
, f (LazyByteString.pack [0x61]) ~?= Just "a"
, f (LazyByteString.pack [0xff]) ~?= Nothing
]
-- ShortByteString
, "From [Word8] ShortByteString"
~: let
f =
Witch.from @[Word.Word8] @ShortByteString.ShortByteString
in
[ f [] ~?= ShortByteString.pack []
, f [0x00] ~?= ShortByteString.pack [0x00]
, f [0x0f, 0xf0] ~?= ShortByteString.pack [0x0f, 0xf0]
]
, "From ShortByteString [Word8]"
~: let
f =
Witch.from @ShortByteString.ShortByteString @[Word.Word8]
in
[ f (ShortByteString.pack []) ~?= []
, f (ShortByteString.pack [0x00]) ~?= [0x00]
, f (ShortByteString.pack [0x0f, 0xf0]) ~?= [0x0f, 0xf0]
]
, "From ShortByteString ByteString"
~: let
f =
Witch.from @ShortByteString.ShortByteString
@ByteString.ByteString
in
[ f (ShortByteString.pack []) ~?= ByteString.pack []
, f (ShortByteString.pack [0x00]) ~?= ByteString.pack [0x00]
, f (ShortByteString.pack [0x0f, 0xf0])
~?= ByteString.pack [0x0f, 0xf0]
]
-- Text
, "From Text LazyText"
~: let f = Witch.from @Text.Text @LazyText.Text
in
[ f (Text.pack "") ~?= LazyText.pack ""
, f (Text.pack "a") ~?= LazyText.pack "a"
, f (Text.pack "ab") ~?= LazyText.pack "ab"
]
, "From Text ByteString"
~: let f = Witch.from @Text.Text @ByteString.ByteString
in
[ f (Text.pack "") ~?= ByteString.pack []
, f (Text.pack "a") ~?= ByteString.pack [0x61]
]
, "From Text LazyByteString"
~: let f = Witch.from @Text.Text @LazyByteString.ByteString
in
[ f (Text.pack "") ~?= LazyByteString.pack []
, f (Text.pack "a") ~?= LazyByteString.pack [0x61]
]
-- LazyText
, "From LazyText Text"
~: let f = Witch.from @LazyText.Text @Text.Text
in
[ f (LazyText.pack "") ~?= Text.pack ""
, f (LazyText.pack "a") ~?= Text.pack "a"
, f (LazyText.pack "ab") ~?= Text.pack "ab"
]
, "From LazyText LazyByteString"
~: let f = Witch.from @LazyText.Text @LazyByteString.ByteString
in
[ f (LazyText.pack "") ~?= LazyByteString.pack []
, f (LazyText.pack "a") ~?= LazyByteString.pack [0x61]
]
, "From LazyText ByteString"
~: let f = Witch.from @LazyText.Text @ByteString.ByteString
in
[ f (LazyText.pack "") ~?= ByteString.pack []
, f (LazyText.pack "a") ~?= ByteString.pack [0x61]
]
-- String
, "From String Text"
~: let f = Witch.from @String @Text.Text
in
[ f "" ~?= Text.pack ""
, f "a" ~?= Text.pack "a"
, f "ab" ~?= Text.pack "ab"
]
, "From Text String"
~: let f = Witch.from @Text.Text @String
in
[ f (Text.pack "") ~?= ""
, f (Text.pack "a") ~?= "a"
, f (Text.pack "ab") ~?= "ab"
]
, "From String LazyText"
~: let f = Witch.from @String @LazyText.Text
in
[ f "" ~?= LazyText.pack ""
, f "a" ~?= LazyText.pack "a"
, f "ab" ~?= LazyText.pack "ab"
]
, "From LazyText String"
~: let f = Witch.from @LazyText.Text @String
in
[ f (LazyText.pack "") ~?= ""
, f (LazyText.pack "a") ~?= "a"
, f (LazyText.pack "ab") ~?= "ab"
]
, "From String ByteString"
~: let f = Witch.from @String @ByteString.ByteString
in
[ f "" ~?= ByteString.pack []
, f "a" ~?= ByteString.pack [0x61]
]
, "From String LazyByteString"
~: let f = Witch.from @String @LazyByteString.ByteString
in
[ f "" ~?= LazyByteString.pack []
, f "a" ~?= LazyByteString.pack [0x61]
]
-- Day
, "From Integer Day"
~: let f = Witch.from @Integer @Time.Day
in [f 0 ~?= Time.ModifiedJulianDay 0]
, "From Day Integer"
~: let f = Witch.from @Time.Day @Integer
in [f (Time.ModifiedJulianDay 0) ~?= 0]
-- DayOfWeek
, "From Day DayOfWeek"
~: let f = Witch.from @Time.Day @Time.DayOfWeek
in [f (Time.ModifiedJulianDay 0) ~?= Time.Wednesday]
-- UniversalTime
, "From Rational UniversalTime"
~: let f = Witch.from @Rational @Time.UniversalTime
in [f 0 ~?= Time.ModJulianDate 0]
, "From UniversalTime Rational"
~: let f = Witch.from @Time.UniversalTime @Rational
in [f (Time.ModJulianDate 0) ~?= 0]
-- DiffTime
, "From Pico DiffTime"
~: let f = Witch.from @Fixed.Pico @Time.DiffTime in [f 0 ~?= 0]
, "From DiffTime Pico"
~: let f = Witch.from @Time.DiffTime @Fixed.Pico in [f 0 ~?= 0]
-- NominalDiffTime
, "From Pico NominalDiffTime"
~: let f = Witch.from @Fixed.Pico @Time.NominalDiffTime
in [f 0 ~?= 0]
, "From NominalDiffTime Pico"
~: let f = Witch.from @Time.NominalDiffTime @Fixed.Pico
in [f 0 ~?= 0]
-- POSIXTime
, "From SystemTime POSIXTime"
~: let f = Witch.from @Time.SystemTime @Time.POSIXTime
in [f (Time.MkSystemTime 0 0) ~?= 0]
, "From UTCTime POSIXTime"
~: let f = Witch.from @Time.UTCTime @Time.POSIXTime
in [f unixEpoch ~?= 0]
, "From POSIXTime UTCTime"
~: let f = Witch.from @Time.POSIXTime @Time.UTCTime
in [f 0 ~?= unixEpoch]
-- SystemTime
, "From UTCTime SystemTime"
~: let f = Witch.from @Time.UTCTime @Time.SystemTime
in [f unixEpoch ~?= Time.MkSystemTime 0 0]
, "From SystemTime AbsoluteTime"
~: let f = Witch.from @Time.SystemTime @Time.AbsoluteTime
in [f (Time.MkSystemTime (-3506716800) 0) ~?= Time.taiEpoch]
, "From SystemTime UTCTime"
~: let f = Witch.from @Time.SystemTime @Time.UTCTime
in [f (Time.MkSystemTime 0 0) ~?= unixEpoch]
-- TimeOfDay
, "From DiffTime TimeOfDay"
~: let f = Witch.from @Time.DiffTime @Time.TimeOfDay
in [f 0 ~?= Time.TimeOfDay 0 0 0]
, "From Rational TimeOfDay"
~: let f = Witch.from @Rational @Time.TimeOfDay
in [f 0 ~?= Time.TimeOfDay 0 0 0]
, "From TimeOfDay DiffTime"
~: let f = Witch.from @Time.TimeOfDay @Time.DiffTime
in [f (Time.TimeOfDay 0 0 0) ~?= 0]
, "From TimeOfDay Rational"
~: let f = Witch.from @Time.TimeOfDay @Rational
in [f (Time.TimeOfDay 0 0 0) ~?= 0]
-- CalendarDiffTime
, "From CalendarDiffDays CalendarDiffTime"
~: let
f =
Witch.from @Time.CalendarDiffDays @Time.CalendarDiffTime
in
[ f (Time.CalendarDiffDays 0 0)
~?= Time.CalendarDiffTime 0 0
]
, "From NominalDiffTime CalendarDiffTime"
~: let
f = Witch.from @Time.NominalDiffTime @Time.CalendarDiffTime
in [f 0 ~?= Time.CalendarDiffTime 0 0]
-- ZonedTime
, "From ZonedTime UTCTime"
~: let f = Witch.from @Time.ZonedTime @Time.UTCTime
in
[ f
(Time.ZonedTime
(Time.LocalTime
(Time.ModifiedJulianDay 0)
(Time.TimeOfDay 0 0 0)
)
Time.utc
)
~?= Time.UTCTime (Time.ModifiedJulianDay 0) 0
]
]
]
unixEpoch :: Time.UTCTime
unixEpoch = Time.UTCTime (Time.ModifiedJulianDay 40587) 0
hush :: Either x a -> Maybe a
hush = either (const Nothing) Just
newtype Age
= Age Int.Int8
deriving (Eq, Show)
instance Witch.From Age Int.Int8
instance Witch.From Int.Int8 Age