diff options
Diffstat (limited to 'tests/Properties/Screen.hs')
| -rw-r--r-- | tests/Properties/Screen.hs | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/tests/Properties/Screen.hs b/tests/Properties/Screen.hs index ed9d12b..cf76252 100644 --- a/tests/Properties/Screen.hs +++ b/tests/Properties/Screen.hs @@ -1,6 +1,7 @@ {-# LANGUAGE ScopedTypeVariables #-} module Properties.Screen where +import Utils import Test.QuickCheck import Instances @@ -53,8 +54,8 @@ prop_aspect_hint_shrink hint (w,h) = case applyAspectHint hint (w,h) of prop_aspect_fits = forAll ((,,,) <$> pos <*> pos <*> pos <*> pos) $ \ (x,y,a,b) -> let f v = applyAspectHint ((x, y+a), (x+b, y)) v - overflow = or [ mul x (y+a), mul (x+b) y ] - in not overflow ==> f (x,y) == (x,y) + in and [ noOverflows (*) x (y+a), noOverflows (*) (x+b) y ] + ==> f (x,y) == (x,y) where pos = choose (0, 65535) mul a b = toInteger (a*b) /= toInteger a * toInteger b @@ -65,10 +66,8 @@ prop_point_within r @ (Rectangle x y w h) = choose (0, fromIntegral h - 1)) $ \(dx,dy) -> and [ dx > 0, dy > 0, - noOverflow x w, - noOverflow y h ] + noOverflows (\ a b -> a + abs b) x w, + noOverflows (\ a b -> a + abs b) y h ] ==> pointWithin (x+dx) (y+dy) r - where - noOverflow a b = (a + fromIntegral (abs b)) > a prop_point_within_mirror r (x,y) = pointWithin x y r == pointWithin y x (mirrorRect r) |