a10/charlie/matcher_shallow.icl

   1 module matcher_shallow
   2
   3 import StdEnv
   4
   5 Contains :: a [a] -> Bool | == a
   6 Contains x xs = foldl (\b y . b || x == y) False xs
   7
   8 EqualTo :: a a -> Bool | == a
   9 EqualTo x y = x == y
  10
  11 LessThen :: a a -> Bool | < a
  12 LessThen x y = y < x
  13
  14 Not :: (a -> Bool) a -> Bool
  15 Not f x = not (f x)
  16
  17 Is :: (a -> Bool) a -> Bool
  18 Is f x = f x
  19
  20 (Or) infixl 2 :: (a -> Bool) (a -> Bool) -> (a -> Bool)
  21 (Or) f g = \x . f x || g x
  22
  23 AssertThat :: String a (a -> Bool) -> [String]
  24 AssertThat id x f | f x = [id : " " : "PASS" : []]
  25                   | otherwise = [id : " " : "FAIL": []]
  26
  27 instance * [String] where
  28         (*) x y = x ++ ["\n":y]
  29
  30 test :: [String] -> [String]
  31 test x = x ++ ["\n"]
  32
  33 a1 = AssertThat "(2*2) (Is (EqualTo (2+2)))" (2*2) (Is(EqualTo (2+2)))
  34 a2 = AssertThat "(3*3) (EqualTo (3+3))" (3*3) (EqualTo (3+3))
  35 a3 = AssertThat "(length [0..3]) is not 4" (length [0..3]) (Not(EqualTo 4))
  36 a4 = AssertThat "[0..3] (Contains 2)" [0..3] (Contains 2)
  37 a5 = AssertThat "[0..3] (Contains 7)" [0..3] (Contains 7)
  38 a6 = AssertThat "[0..3] (Either (EqualTo [1]) (Contains 7))" [0..3] (EqualTo [1] Or (Contains 7))
  39
  40 report = test (a1*a2*a3*a4*a5*a6)
  41
  42 instance <<< [String] where
  43         (<<<) file [] = file
  44         (<<<) file [s:ss] = file <<< s <<< ss
  45
  46 Start :: !*World -> *World
  47 Start world
  48         # (file, world) = stdio world
  49         # file = file <<< report
  50         # (ok, world) = fclose file world
  51         | otherwise = world