git-annex/Utility/Scheduled/QuickCheck.hs
2023-03-17 15:14:54 -04:00

51 lines
1 KiB
Haskell

{- quickcheck for scheduled activities
-
- Copyright 2013-2014 Joey Hess <id@joeyh.name>
-
- License: BSD-2-clause
-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Utility.Scheduled.QuickCheck (prop_schedule_roundtrips) where
import Utility.Scheduled
import Utility.QuickCheck
import Control.Applicative
import Prelude
instance Arbitrary Schedule where
arbitrary = Schedule <$> arbitrary <*> arbitrary
instance Arbitrary ScheduledTime where
arbitrary = oneof
[ pure AnyTime
, SpecificTime
<$> choose (0, 23)
<*> choose (1, 59)
]
instance Arbitrary Recurrence where
arbitrary = oneof
[ pure Daily
, Weekly <$> arbday
, Monthly <$> arbday
, Yearly <$> arbday
, Divisible
<$> positive arbitrary
<*> oneof -- no nested Divisibles
[ pure Daily
, Weekly <$> arbday
, Monthly <$> arbday
, Yearly <$> arbday
]
]
where
arbday = oneof
[ Just <$> nonNegative arbitrary
, pure Nothing
]
prop_schedule_roundtrips :: Schedule -> Bool
prop_schedule_roundtrips s = toSchedule (fromSchedule s) == Just s