File: Basics.hs

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-----------------------------------------------------------------------------
-- |
-- Module    : TestSuite.Optimization.Basics
-- Copyright : (c) Levent Erkok
-- License   : BSD3
-- Maintainer: erkokl@gmail.com
-- Stability : experimental
--
-- Test suite for optimization routines
-----------------------------------------------------------------------------

{-# OPTIONS_GHC -Wall -Werror #-}

module TestSuite.Optimization.Basics(tests) where

import Utils.SBVTestFramework

-- Test suite
tests :: TestTree
tests =
  testGroup "Optimization.Basics" $
       [ goldenVsStringShow "optBasics1" (optimize Lexicographic optBasics1)
       , goldenVsStringShow "optBasics2" (optimize Lexicographic optBasics2)
       ]
    ++ [ goldenVsStringShow ("optBasicsRange_" ++ n) (optimize Lexicographic f)
       | (n, f) <- [ ("08_unsigned_max", sWord8  "x" >>= maximize "m")
                   , ("08_unsigned_min", sWord8  "x" >>= minimize "m")
                   , ("16_unsigned_max", sWord16 "x" >>= maximize "m")
                   , ("16_unsigned_min", sWord16 "x" >>= minimize "m")
                   , ("32_unsigned_max", sWord32 "x" >>= maximize "m")
                   , ("32_unsigned_min", sWord32 "x" >>= minimize "m")
                   , ("64_unsigned_max", sWord64 "x" >>= maximize "m")
                   , ("64_unsigned_min", sWord64 "x" >>= minimize "m")
                   , ("08_signed_max",   sInt8   "x" >>= maximize "m")
                   , ("08_signed_min",   sInt8   "x" >>= minimize "m")
                   , ("16_signed_max",   sInt16  "x" >>= maximize "m")
                   , ("16_signed_min",   sInt16  "x" >>= minimize "m")
                   , ("32_signed_max",   sInt32  "x" >>= maximize "m")
                   , ("32_signed_min",   sInt32  "x" >>= minimize "m")
                   , ("64_signed_max",   sInt64  "x" >>= maximize "m")
                   , ("64_signed_min",   sInt64  "x" >>= minimize "m")
                   ]
       ]

optBasics1 :: ConstraintSet
optBasics1 = do x <- sInteger "x"
                y <- sInteger "y"

                constrain $ x .< 2
                constrain $ y - x .< 1

                maximize "x_plus_y" $ x+y

optBasics2 :: ConstraintSet
optBasics2 = do x <- sInteger "x"
                y <- sInteger "y"

                constrain $ x .< 4
                constrain $ y - x .< 1
                constrain $ y .> 1

                minimize "x_plus_y" $ x+y