80 lines
3.9 KiB
Haskell
80 lines
3.9 KiB
Haskell
--------------------------------------------------------------------------------
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module Spec where
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--------------------------------------------------------------------------------
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import Test.Hspec
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import Main hiding (main)
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import qualified Data.HashSet as HS
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--------------------------------------------------------------------------------
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main :: IO ()
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main = hspec $ do
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describe "dotted-squares" $ do
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describe "parseInput" $ do
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it "works as expected" $ do
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input <- readFile "input-a.txt"
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parseInput input `shouldBe` Just (Game mempty [ mkLine (Point 0 0) (Point 1 0)
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, mkLine (Point 0 0) (Point 0 1)
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])
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it "fails when the game has too many user moves" $ do
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input <- readFile "too-many-moves.txt"
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parseInput input `shouldBe` Nothing
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it "fails when the game has too few user moves" $ do
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input <- readFile "too-few-moves.txt"
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parseInput input `shouldBe` Nothing
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describe "shiftLine" $ do
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let horizontal = mkLineDir 1 1 DirRight
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vertical = mkLineDir 1 1 DirUp
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it "can move a horizontal line up" $
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shiftLine DirUp horizontal `shouldBe` mkLineDir 1 2 DirRight
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it "can move a horizontal line down" $
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shiftLine DirDown horizontal `shouldBe` mkLineDir 1 0 DirRight
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it "can move a horizontal line left" $
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shiftLine DirLeft horizontal `shouldBe` mkLineDir 0 1 DirRight
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it "can move a horizontal line right" $
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shiftLine DirRight horizontal `shouldBe` mkLineDir 2 1 DirRight
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it "can move a vertical line up" $
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shiftLine DirUp vertical `shouldBe` mkLineDir 1 2 DirUp
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it "can move a vertical line down" $
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shiftLine DirDown vertical `shouldBe` mkLineDir 1 0 DirUp
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it "can move a vertical line left" $
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shiftLine DirLeft vertical `shouldBe` mkLineDir 0 1 DirUp
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it "can move a vertical line right" $
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shiftLine DirRight vertical `shouldBe` mkLineDir 2 1 DirUp
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describe "rotateLine" $ do
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let horizontal = mkLineDir 1 1 DirRight -- 1,1;2,1
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vertical = mkLineDir 1 1 DirUp -- 1,1;1,2
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it "can rotate a horizontal line CW anchored at its beginning" $
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rotateLine Beg CW horizontal `shouldBe` mkLineDir 1 1 DirDown
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it "can rotate a horizontal line CCW anchored at its beginning" $
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rotateLine Beg CCW horizontal `shouldBe` mkLineDir 1 1 DirUp
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it "can rotate a horizontal line CW anchored at its end" $
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rotateLine End CW horizontal `shouldBe` mkLineDir 2 1 DirUp
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it "can rotate a horizontal line CCW anchored at its end" $
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rotateLine End CCW horizontal `shouldBe` mkLineDir 2 1 DirDown
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it "can rotate a vertical line CW anchored at its beginning" $
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rotateLine Beg CW vertical `shouldBe` mkLineDir 1 1 DirRight
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it "can rotate a vertical line CCW anchored at its beginning" $
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rotateLine Beg CCW vertical `shouldBe` mkLineDir 1 1 DirLeft
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it "can rotate a vertical line CW anchored at its end" $
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rotateLine End CW vertical `shouldBe` mkLineDir 1 2 DirLeft
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it "can rotate a vertical line CCW anchored at its end" $
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rotateLine End CCW vertical `shouldBe` mkLineDir 1 2 DirRight
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describe "closesAnySquare" $ do
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let threeSides = [ (0, 0, DirRight)
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, (0, 0, DirUp)
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, (0, 1, DirRight)
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]
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|> fmap (\(x, y, dir) -> mkLineDir x y dir)
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|> HS.fromList
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it "returns true the line we supply makes a square" $
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closesAnySquare threeSides (mkLineDir 1 1 DirDown) `shouldBe` True
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it "returns false the line we supply doesn't make a square" $
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closesAnySquare threeSides (mkLineDir 1 1 DirUp) `shouldBe` False
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it "returns false when we have no existing lines" $
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closesAnySquare mempty (mkLineDir 1 1 DirUp) `shouldBe` False
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