Add Test3, make it possible to test locally, initial UE3 A.3
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@ -3,5 +3,6 @@ FROM haskell:buster
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RUN apt-get update && apt-get install -y haskell-platform
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WORKDIR /opt
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RUN cabal update && cabal install tasty-hunit
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CMD ["ghci"]
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CMD ["cabal", "repl", "-b", "base", "-b", "tasty", "-b", "tasty-hunit"]
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@ -10,7 +10,7 @@
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Matrizen konzeptuell als Listen von Zeilen dargestellt:
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> newtype Matrix = M [Zeile] deriving (Eq)
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> newtype Matrix = M [Zeile]
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> fehlerwert = M [] :: Matrix
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@ -63,11 +63,9 @@ Solution:
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Aufgabe A.3
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Knapp, aber gut nachvollziebar geht die Instanzdeklaration fuer Eq folgendermassen vor:
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...
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instance Eq Matrix where
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...
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> instance Eq Matrix where
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> (==) (M m1) (M m2) = (m1 Prelude.== m2)
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> (/=) (M m1) (M m2) = (m1 Prelude./= m2)
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Aufgabe A.4
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@ -0,0 +1,241 @@
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module Test3 where
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import Angabe3
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import Test.Tasty
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import Test.Tasty.HUnit
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import Test.Tasty.Ingredients (composeReporters)
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import Test.Tasty.Ingredients.ConsoleReporter (consoleTestReporter)
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import Control.Exception (ErrorCall(ErrorCallWithLocation), try, evaluate)
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main :: IO ()
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main = defaultMainWithIngredients [consoleTestReporter] spec
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{-----TESTDATEN BEGINN-----}
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m1 = M [[1,2],[3,4]] :: Matrix
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m2 = M [[1,2],[3,4],[5,6]] :: Matrix
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m3 = M [[1,2,3],[4,5],[6]] :: Matrix
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m4 = M [[1,2,3],[],[6]] :: Matrix
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m5 = M [[],[],[]] :: Matrix
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m6 = M [] :: Matrix
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m7 = M [[1,2,5],[-3,-4,1]] :: Matrix
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m8 = M [[4,4],[1,0],[9,6]] :: Matrix
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m9 = M [[-1,1],[1,-1],[-2,2]] :: Matrix
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m10 = M [[0,0,0],[0,0,0],[0,0,0]] :: Matrix
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neg_m1 = M [[-1,-2],[-3,-4]] :: Matrix
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neg_m7 = M[[-1,-2,-5],[3,4,-1]] :: Matrix
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abs_m7 = M [[1,2,5],[3,4,1]] :: Matrix
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errMsg_gleich = "Gleichheit undefiniert" :: String
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errMsg_ungleich = "Ungleichheit undefiniert" :: String
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errMsg_signum = "Vorzeichenfunktion undefiniert" :: String
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{-----TESTDATEN ENDE-----}
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getMsg :: ErrorCall -> String
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getMsg (ErrorCallWithLocation msg _) = msg
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assertError :: (Show a) => String -> a -> IO ()
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assertError errorMsg action = do
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r <- try (evaluate action)
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case r of
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Left e -> if (getMsg e == errorMsg) then return()
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else assertFailure $ "Received unexpected error: " ++ (show e) ++ "\ninstead of: " ++ errorMsg
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Right _ -> assertFailure $ "Expected error: " ++ errorMsg
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spec :: TestTree
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spec =
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testGroup
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"Test2 Spec"
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[
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showMatrix_tests,
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matrixtyp_tests,
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gleichheit_tests,
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plus_tests,
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minus_tests,
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mal_tests,
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negate_tests,
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abs_tests,
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signum_tests,
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fromInteger_tests
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]
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showMatrix_tests :: TestTree
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showMatrix_tests =
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testGroup
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"-----show Matrix Tests-----"
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[
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testCase "m1: M [[1,2] [3,4]]" $
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show m1 @?= "([1,2] [3,4])",
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testCase "m2: M [[1,2],[3,4],[5,6]]" $
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show m2 @?= "([1,2] [3,4] [5,6])",
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testCase "m3: M [[1,2,3],[4,5],[6]]" $
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show m3 @?= "([1,2,3] [4,5] [6])",
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testCase "m4: M [[1,2,3],[],[6]]" $
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show m4 @?= "([1,2,3] [] [6])",
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testCase "m5: M [[],[],[]]" $
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show m5 @?= "([] [] [])",
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testCase "m6: M []" $
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show m6 @?= show fehlerwert
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]
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matrixtyp_tests :: TestTree
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matrixtyp_tests =
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testGroup
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"-----Matrixtyp Tests-----"
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[
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testCase "m1: quadratische Matrix (2,2)" $
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matrixtyp m1 @?= Mat (2,2),
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testCase "m2: rechteckige Matrix (3,2)" $
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matrixtyp m2 @?= Mat (3,2),
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testCase "m5: leer-elementrige Matrix" $
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matrixtyp m5 @?= KeineMatrix,
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testCase "m6: fehlerwertige Matrix (M [])" $
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matrixtyp m6 @?= KeineMatrix,
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testCase "m3: ungültige Matrix, kein Leer-Element" $
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matrixtyp m3 @?= KeineMatrix,
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testCase "m4: ungültige Matrix, ein Leer-Element" $
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matrixtyp m4 @?= KeineMatrix
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]
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gleichheit_tests :: TestTree
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gleichheit_tests =
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testGroup
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"-----Matrix-Gleichheit Tests-----"
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[
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testCase "m1 == m1: gültige gleiche Matrizen" $
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m1 == m1 @?= True,
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testCase "m1 == m2: gültige ungleich-zeilige Matrizen" $
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m1 == m2 @?= False,
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testCase "m1 == m2: gültige ungleich-spaltige Matrizen" $
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m1 == m7 @?= False,
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testCase "m5 /= m5: leer-elementrige Matrizen" $
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assertError errMsg_ungleich (m5 /= m5),
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testCase "m3 == m1: linke Matrix ungültig" $
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assertError errMsg_gleich (m3 == m1),
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testCase "m1 /= m3: rechte Matrix ungültig" $
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assertError errMsg_ungleich (m1 /= m3),
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testCase "m3 == m4: beide Matrizen ungültig" $
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assertError errMsg_gleich (m3 == m4),
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testCase "m6 /= m6: beide Matrizen fehlerwertig (M [])" $
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assertError errMsg_ungleich (m6 /= m6)
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]
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plus_tests :: TestTree
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plus_tests =
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testGroup
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"-----Matrix-Summe Tests-----"
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[
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testCase "m1 + m1: gültige Matrizen, Summe definiert" $
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m1 + m1 @?= M [[2,4],[6,8]],
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testCase "m1 + m2: gültige Matrizen, Summe undefiniert" $
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show (m1 + m2) @?= show fehlerwert,
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testCase "m1 + m4: rechte Matrix ungültig" $
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show (m1 + m4) @?= show fehlerwert,
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testCase "m4 + m1: linke Matrix ungültig" $
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show (m4 + m1) @?= show fehlerwert,
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testCase "m3 + m4: beide Matrizen ungültig" $
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show (m3 + m4) @?= show fehlerwert,
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testCase "m5 + m5: leere Matrizen, Summe undefiniert" $
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show (m5 + m5) @?= show fehlerwert,
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testCase "m6 + m7: linke Matrix fehlerwertig (M [])" $
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show (m6 + m7) @?= show fehlerwert
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]
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minus_tests :: TestTree
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minus_tests =
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testGroup
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"-----Matrix-Differenz Tests-----"
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[
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testCase "m1 - m1: gültige Matrizen, Differenz definiert" $
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m1 - m1 @?= M [[0,0],[0,0]],
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testCase "m2 - m8: gültige Matrizen, Differenz definiert, neg. Werte" $
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m2 - m8 @?= M [[-3,-2],[2,4],[-4,0]],
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testCase "m1 - m2: gültige Matrizen, Differenz undefiniert" $
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show (m1 - m2) @?= show fehlerwert,
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testCase "m1 - m4: rechte Matrix ungültig" $
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show (m1 - m4) @?= show fehlerwert,
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testCase "m4 - m1: linke Matrix ungültig" $
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show (m4 - m1) @?= show fehlerwert,
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testCase "m3 - m4: beide Matrizen ungültig" $
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show (m3 - m4) @?= show fehlerwert,
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testCase "m5 - m5: leere Matrizen, Differenz undefiniert" $
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show (m5 - m5) @?= show fehlerwert,
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testCase "m6 - m7: linke Matrix fehlerwertig (M [])" $
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show (m6 - m7) @?= show fehlerwert
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]
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mal_tests :: TestTree
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mal_tests =
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testGroup
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"-----Matrix-Multiplikation Tests-----"
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[
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testCase "m2 * m7: gültige Matrizen, gültiger Typ" $
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m2 * m7 @?= M [[-5,-6,7],[-9,-10,19],[-13,-14,31]],
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testCase "m1 * m2: gültige Matrizen, ungültiger Typ" $
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show (m1 * m2) @?= show fehlerwert,
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testCase "m5 * m5: leere Matrizen" $
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show (m5 * m5) @?= show fehlerwert,
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testCase "m6 * m7: linke Matrix fehlerwertig (M [])" $
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show (m6 * m7) @?= show fehlerwert
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]
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negate_tests :: TestTree
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negate_tests =
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testGroup
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"-----Negate Tests-----"
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[
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testCase "m1: gültige nur positive VZ Matrix" $
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negate m1 @?= neg_m1,
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testCase "m7: gültige gemischte VZ Matrix" $
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negate m7 @?= neg_m7,
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testCase "m5: leere Matrix" $
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show (negate m5) @?= show fehlerwert,
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testCase "m4: ungültige Matrix" $
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show (negate m4) @?= show fehlerwert
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]
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abs_tests :: TestTree
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abs_tests =
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testGroup
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"-----Abs.Betrag Tests-----"
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[
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testCase "m7: gültige gemischte VZ Matrix" $
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abs m7 @?= abs_m7,
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testCase "m5: leere Matrix" $
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show (abs m5) @?= show fehlerwert,
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testCase "m4: ungültige Matrix" $
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show (abs m4) @?= show fehlerwert
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]
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signum_tests :: TestTree
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signum_tests =
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testGroup
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"-----Signum Tests-----"
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[
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testCase "m1: gültige nur positive VZ Matrix" $
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signum m1 @?= M [[1]],
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testCase "m7: gültige gemischte VZ Matrix" $
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assertError errMsg_signum (signum m7),
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testCase "neg_m1: gültige nur negative VZ Matrix" $
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signum neg_m1 @?= M [[-1]],
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testCase "m10: gültige Matrix, alle Einträge 0" $
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signum m10 @?= M[[0]],
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testCase "m5: leere Matrix" $
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assertError errMsg_signum (signum m5),
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testCase "m4: ungültige Matrix" $
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assertError errMsg_signum (signum m4),
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testCase "m9: gültige gemischte VZ Matrix, Summe negVZ == Summe posVZ" $
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assertError errMsg_signum (signum m9)
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]
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fromInteger_tests :: TestTree
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fromInteger_tests =
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testGroup
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"-----fromInteger Tests-----"
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[
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testCase "fromInteger 1" $
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fromInteger 1 @?= M [[1]],
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testCase "fromInteger 0" $
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fromInteger 0 @?= M [[0]],
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testCase "fromInteger -1" $
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fromInteger (-1) @?= M [[-1]]
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]
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