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Diffstat (limited to 'users/wpcarro/assessments/dotted-squares/Spec.hs')
| -rw-r--r-- | users/wpcarro/assessments/dotted-squares/Spec.hs | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/users/wpcarro/assessments/dotted-squares/Spec.hs b/users/wpcarro/assessments/dotted-squares/Spec.hs new file mode 100644 index 0000000000..b5d604085b --- /dev/null +++ b/users/wpcarro/assessments/dotted-squares/Spec.hs @@ -0,0 +1,80 @@ +-------------------------------------------------------------------------------- +module Spec where +-------------------------------------------------------------------------------- +import Test.Hspec +import Main hiding (main) +import qualified Data.HashSet as HS +-------------------------------------------------------------------------------- + +main :: IO () +main = hspec $ do + describe "dotted-squares" $ do + describe "parseInput" $ do + it "works as expected" $ do + input <- readFile "input-a.txt" + parseInput input `shouldBe` Just (Game mempty [ mkLine (Point 0 0) (Point 1 0) + , mkLine (Point 0 0) (Point 0 1) + ]) + + it "fails when the game has too many user moves" $ do + input <- readFile "too-many-moves.txt" + parseInput input `shouldBe` Nothing + + it "fails when the game has too few user moves" $ do + input <- readFile "too-few-moves.txt" + parseInput input `shouldBe` Nothing + + describe "shiftLine" $ do + let horizontal = mkLineDir 1 1 DirRight + vertical = mkLineDir 1 1 DirUp + it "can move a horizontal line up" $ + shiftLine DirUp horizontal `shouldBe` mkLineDir 1 2 DirRight + it "can move a horizontal line down" $ + shiftLine DirDown horizontal `shouldBe` mkLineDir 1 0 DirRight + it "can move a horizontal line left" $ + shiftLine DirLeft horizontal `shouldBe` mkLineDir 0 1 DirRight + it "can move a horizontal line right" $ + shiftLine DirRight horizontal `shouldBe` mkLineDir 2 1 DirRight + it "can move a vertical line up" $ + shiftLine DirUp vertical `shouldBe` mkLineDir 1 2 DirUp + it "can move a vertical line down" $ + shiftLine DirDown vertical `shouldBe` mkLineDir 1 0 DirUp + it "can move a vertical line left" $ + shiftLine DirLeft vertical `shouldBe` mkLineDir 0 1 DirUp + it "can move a vertical line right" $ + shiftLine DirRight vertical `shouldBe` mkLineDir 2 1 DirUp + + describe "rotateLine" $ do + let horizontal = mkLineDir 1 1 DirRight -- 1,1;2,1 + vertical = mkLineDir 1 1 DirUp -- 1,1;1,2 + it "can rotate a horizontal line CW anchored at its beginning" $ + rotateLine Beg CW horizontal `shouldBe` mkLineDir 1 1 DirDown + it "can rotate a horizontal line CCW anchored at its beginning" $ + rotateLine Beg CCW horizontal `shouldBe` mkLineDir 1 1 DirUp + it "can rotate a horizontal line CW anchored at its end" $ + rotateLine End CW horizontal `shouldBe` mkLineDir 2 1 DirUp + it "can rotate a horizontal line CCW anchored at its end" $ + rotateLine End CCW horizontal `shouldBe` mkLineDir 2 1 DirDown + + it "can rotate a vertical line CW anchored at its beginning" $ + rotateLine Beg CW vertical `shouldBe` mkLineDir 1 1 DirRight + it "can rotate a vertical line CCW anchored at its beginning" $ + rotateLine Beg CCW vertical `shouldBe` mkLineDir 1 1 DirLeft + it "can rotate a vertical line CW anchored at its end" $ + rotateLine End CW vertical `shouldBe` mkLineDir 1 2 DirLeft + it "can rotate a vertical line CCW anchored at its end" $ + rotateLine End CCW vertical `shouldBe` mkLineDir 1 2 DirRight + + describe "closesAnySquare" $ do + let threeSides = [ (0, 0, DirRight) + , (0, 0, DirUp) + , (0, 1, DirRight) + ] + |> fmap (\(x, y, dir) -> mkLineDir x y dir) + |> HS.fromList + it "returns true the line we supply makes a square" $ + closesAnySquare threeSides (mkLineDir 1 1 DirDown) `shouldBe` True + it "returns false the line we supply doesn't make a square" $ + closesAnySquare threeSides (mkLineDir 1 1 DirUp) `shouldBe` False + it "returns false when we have no existing lines" $ + closesAnySquare mempty (mkLineDir 1 1 DirUp) `shouldBe` False |