{-# LANGUAGE BangPatterns, NamedFieldPuns #-}
{-# OPTIONS_GHC -fwarn-incomplete-patterns #-}
{- Example build:
  ghc --make Test.hs -o Test.exe -rtsopts -fforce-recomp
-}
module Main where

import System.Environment (getEnvironment)
import Test.HUnit as HU

import Data.Concurrent.Deque.Tests     
import Data.Concurrent.Deque.Class
import Data.Concurrent.Deque.Debugger  (DebugDeque)
import qualified Data.Concurrent.Deque.ChaseLev as CL

import RegressionTests.Issue5 (standalone_pushPop)
import qualified RegressionTests.Issue5B 

main :: IO ()
main = stdTestHarness $ do 
  theEnv <- getEnvironment
  let wrapper = case lookup "NOWRAPPER" theEnv of
                 Just _  -> False
                 Nothing -> True
  let plain = case lookup "ONLYWRAPPER" theEnv of
                Just _  -> False
                Nothing -> True  
  let all_tests :: HU.Test
      all_tests = TestList $ 
        [ TestLabel "simplest_pushPop"  $ TestCase simplest_pushPop
        , TestLabel "standalone_pushPop"  $ TestCase standalone_pushPop
        , TestLabel "standalone_pushPop2" $ TestCase RegressionTests.Issue5B.standalone_pushPop ]
        -- This is very ugly and should be unnecessary:
        ++ if plain then
             [ TestLabel "ChaseLev" $ tests_wsqueue (newQ :: IO (CL.ChaseLevDeque a)) ]
           else []  
        ++ if wrapper then
             [ TestLabel "ChaseLev(DbgWrapper)" $ tests_wsqueue (newQ :: IO (DebugDeque CL.ChaseLevDeque a)) ]
           else []
        
  return all_tests

--------------------------------------------------------------------------------
-- Individual unit and regression tests:
-------------------------------------------------------------------------------

-- <Small Reproducer for recent debug wrapper problem>
-- This fails even without profiling on.
simplest_pushPop :: IO ()
simplest_pushPop =
  triv =<< (newQ :: IO (DebugDeque CL.ChaseLevDeque a))           
 where   
   -- This is what's failing with the debug wrapper, WHY?
   triv :: PopL d => d [Char] -> IO ()
   triv q = do
     pushL q "hi" 
     x <- tryPopL q
     let y = case x of
              Just z -> z
              Nothing -> error "Even a single push/pop in isolation did not work!"
     assertEqual "test_ws_triv1" y "hi"