diff options
| -rw-r--r-- | tests/Properties.hs | 49 |
1 files changed, 42 insertions, 7 deletions
diff --git a/tests/Properties.hs b/tests/Properties.hs index ab4d952..503330f 100644 --- a/tests/Properties.hs +++ b/tests/Properties.hs @@ -1,6 +1,7 @@ import StackSet +import Data.Maybe import System.Environment import Control.Exception (assert) import Control.Monad @@ -8,7 +9,7 @@ import Test.QuickCheck import System.IO import System.Random import Text.Printf -import Data.List (sort,group,sort,intersperse) +import Data.List (nub,sort,group,sort,intersperse) -- --------------------------------------------------------------------- -- QuickCheck properties for the StackSet @@ -27,17 +28,44 @@ instance (Ord a, Arbitrary a) => Arbitrary (StackSet a) where coarbitrary = error "no coarbitrary for StackSet" prop_id x = fromList (toList x) == x - where _ = x :: StackSet Int + where _ = x :: T + +prop_member1 i n = member i (push i x) + where x = empty n :: T + +prop_member2 i x = not (member i (delete i x)) + where _ = x :: T + +prop_member3 i n = member i (empty n :: T) == False + +prop_sizepush is n = n > 0 ==> size (foldr push x is ) == n + where x = empty n :: T + +prop_currentpush is n = n > 0 ==> + height (current x) (foldr push x js) == length js + where + js = nub is + x = empty n :: T + +prop_pushpeek x is = not (null is) ==> fromJust (peek (foldr push x is)) == head is + where _ = x :: T + +prop_peekmember x = case peek x of + Just w -> member w x + Nothing -> True {- then we don't know anything -} + where _ = x :: T + +type T = StackSet Int prop_delete_uniq i x = not (member i x) ==> delete i x == x - where _ = x :: StackSet Int + where _ = x :: T prop_delete2 i x = delete i x == delete i (delete i x) - where _ = x :: StackSet Int + where _ = x :: T prop_rotaterotate x = rotate LT (rotate GT x) == x - where _ = x :: StackSet Int + where _ = x :: T prop_viewview r x = let n = current x @@ -45,12 +73,12 @@ prop_viewview r x = i = r `mod` sz in view n (view i x) == x - where _ = x :: StackSet Int + where _ = x :: T prop_shiftshift r x = let n = current x in shift n (shift r x) == x - where _ = x :: StackSet Int + where _ = x :: T ------------------------------------------------------------------------ @@ -64,6 +92,13 @@ main = do tests = [("read.show ", mytest prop_id) + ,("member/push ", mytest prop_member1) + ,("member/peek ", mytest prop_peekmember) + ,("member/delete ", mytest prop_member2) + ,("member/empty ", mytest prop_member3) + ,("size/push ", mytest prop_sizepush) + ,("height/push ", mytest prop_currentpush) + ,("push/peek ", mytest prop_pushpeek) ,("delete/not.member", mytest prop_delete_uniq) ,("delete idempotent", mytest prop_delete2) ,("rotate/rotate ", mytest prop_rotaterotate) |