content: {-| Common tests for PartialParams instances
  
  -}
  
  {-
  
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  module Test.Ganeti.PartialParams
    ( testFillParamsLaw1
    , testToParamsLaw2
    , testToFilledLaw3
    , testToFilledMonoidLaw1
    , testToFilledMonoidLaw2
    ) where
  
  import Data.Monoid ((<>))
  
  import Test.QuickCheck
  
  import Ganeti.PartialParams
  
  import Test.Ganeti.TestCommon
  
  -- | Checks for serialisation idempotence.
  testFillParamsLaw1 :: (PartialParams f p, Show f, Eq f)
                     => f -> p -> Property
  testFillParamsLaw1 f p = fillParams (fillParams f p) p ==? fillParams f p
  
  -- | Tests that filling partial parameters satisfies the law.
  testToParamsLaw2 :: (PartialParams f p, Show f, Eq f) => f -> f -> Property
  testToParamsLaw2 x f = fillParams x (toPartial f) ==? f
  
  -- | Tests that converting partial to filled parameters satisfies the law.
  testToFilledLaw3 :: (PartialParams f p, Show f, Eq f) => f -> Property
  testToFilledLaw3 f = toFilled (toPartial f) ==? Just f
  
  -- | Tests that the partial params behave correctly as a monoid action.
  testToFilledMonoidLaw1 :: (PartialParams f p, Show f, Eq f, Monoid p)
                         => f -> Property
  testToFilledMonoidLaw1 f = fillParams f mempty ==? f
  
  -- | Tests that the partial params behave correctly as a monoid action.
  testToFilledMonoidLaw2 :: (PartialParams f p, Show f, Eq f, Monoid p)
                         => f -> p -> p -> Property
  testToFilledMonoidLaw2 f p1 p2 =
    fillParams f (p1 <> p2) ==? fillParams (fillParams f p1) p2
  