2edb963b97
git-subtree-dir: users/glittershark/xanthous git-subtree-mainline:91f53f02d8git-subtree-split:53b56744f4
65 lines
2.6 KiB
Haskell
65 lines
2.6 KiB
Haskell
module Xanthous.Util.GraphicsSpec (main, test) where
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--------------------------------------------------------------------------------
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import Test.Prelude hiding (head)
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--------------------------------------------------------------------------------
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import Xanthous.Util.Graphics
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import Xanthous.Util
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import Data.List (head)
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import Data.Set (isSubsetOf)
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--------------------------------------------------------------------------------
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main :: IO ()
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main = defaultMain test
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test :: TestTree
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test = testGroup "Xanthous.Util.Graphics"
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[ testGroup "circle"
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[ testCase "radius 1, origin 2,2"
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{-
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| | 0 | 1 | 2 | 3 |
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|---+---+---+---+---|
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| 0 | | | | |
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| 1 | | | x | |
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| 2 | | x | | x |
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| 3 | | | x | |
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-}
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$ (sort . unique @[] @[_]) (circle @Int (2, 2) 1)
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@?= [ (1, 2)
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, (2, 1), (2, 3)
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, (3, 2)
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]
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, testCase "radius 12, origin 0"
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$ (sort . unique @[] @[_]) (circle @Int (0, 0) 12)
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@?= [ (-12,-4),(-12,-3),(-12,-2),(-12,-1),(-12,0),(-12,1),(-12,2)
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, (-12,3),(-12,4),(-11,-6),(-11,-5),(-11,5),(-11,6),(-10,-7),(-10,7)
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, (-9,-9),(-9,-8),(-9,8),(-9,9),(-8,-9),(-8,9),(-7,-10),(-7,10)
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, (-6,-11),(-6,11),(-5,-11),(-5 ,11),(-4,-12),(-4,12),(-3,-12),(-3,12)
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, (-2,-12),(-2,12),(-1,-12),(-1,12),(0,-12),(0,12),(1,-12),(1,12)
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, (2,-12),(2,12),(3,-12),(3,12),(4,-12),(4,12),(5,-11),(5 ,11),(6,-11)
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, (6,11),(7,-10),(7,10),(8,-9),(8,9),(9,-9),(9,-8),(9,8),(9,9),(10,-7)
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, (10,7),(11,-6),(11,-5),(11,5),(11,6),(12,-4),(12,-3),(12,-2),(12,-1)
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, (12,0), (12,1),(12,2),(12,3),(12,4)
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]
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]
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, testGroup "filledCircle"
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[ testProperty "is a superset of circle" $ \center radius ->
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let circ = circle @Int center radius
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filledCirc = filledCircle center radius
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in counterexample ( "circle: " <> show circ
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<> "\nfilledCircle: " <> show filledCirc)
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$ setFromList circ `isSubsetOf` setFromList filledCirc
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-- TODO later
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-- , testProperty "is always contiguous" $ \center radius ->
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-- let filledCirc = filledCircle center radius
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-- in counterexample (renderBooleanGraphics filledCirc) $
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]
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, testGroup "line"
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[ testProperty "starts and ends at the start and end points" $ \start end ->
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let ℓ = line @Int start end
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in counterexample ("line: " <> show ℓ)
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$ length ℓ > 2 ==> (head ℓ === start) .&&. (head (reverse ℓ) === end)
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]
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]
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--------------------------------------------------------------------------------
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