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Fix ambiguity error in Opposite tests

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For some reason cabal wasn't properly recompiling this file locally to
pick up the introduction of an ambiguity error.
This commit is contained in:
Griffin Smith 2019-12-31 11:28:51 -05:00
parent 0373e06c02
commit 14997bc1a3
2 changed files with 4 additions and 2 deletions
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2
src/Xanthous/Data.hs
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@ -334,6 +334,7 @@ data Corner
| BottomLeft | BottomLeft
| BottomRight | BottomRight
deriving stock (Show, Eq, Ord, Enum, Bounded, Generic) deriving stock (Show, Eq, Ord, Enum, Bounded, Generic)
deriving Arbitrary via GenericArbitrary Corner
instance Opposite Corner where instance Opposite Corner where
opposite TopLeft = BottomRight opposite TopLeft = BottomRight
@ -347,6 +348,7 @@ data Edge
| RightEdge | RightEdge
| BottomEdge | BottomEdge
deriving stock (Show, Eq, Ord, Enum, Bounded, Generic) deriving stock (Show, Eq, Ord, Enum, Bounded, Generic)
deriving Arbitrary via GenericArbitrary Edge
instance Opposite Edge where instance Opposite Edge where
opposite TopEdge = BottomEdge opposite TopEdge = BottomEdge

4
test/Xanthous/DataSpec.hs
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@ -57,14 +57,14 @@ test = testGroup "Xanthous.Data"
, testGroup "Corner" , testGroup "Corner"
[ testGroup "instance Opposite" [ testGroup "instance Opposite"
[ testProperty "involutive" $ \corner -> [ testProperty "involutive" $ \(corner :: Corner) ->
opposite (opposite corner) === corner opposite (opposite corner) === corner
] ]
] ]
, testGroup "Edge" , testGroup "Edge"
[ testGroup "instance Opposite" [ testGroup "instance Opposite"
[ testProperty "involutive" $ \edge -> [ testProperty "involutive" $ \(edge :: Edge) ->
opposite (opposite edge) === edge opposite (opposite edge) === edge
] ]
] ]