GameTree.hs

{-# OPTIONS_GHC -fno-warn-orphans #-}
{-
	Copyright (C) 2018 Dr. Alistair Ward

	This file is part of BishBosh.

	BishBosh is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	BishBosh is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with BishBosh.  If not, see <http://www.gnu.org/licenses/>.
-}
{- |
 [@AUTHOR@]	Dr. Alistair Ward

 [@DESCRIPTION@]	Implements 'Test.QuickCheck.Arbitrary' & defines /QuickCheck/-properties.
-}

module BishBosh.Test.QuickCheck.Model.GameTree(
-- * Types
-- ** Type-synonyms
	GameTree,
-- * Constants
	results
) where

import qualified	BishBosh.Model.Game			as Model.Game
import qualified	BishBosh.Model.GameTree			as Model.GameTree
import qualified	BishBosh.Property.Arboreal		as Property.Arboreal
import qualified	BishBosh.Test.QuickCheck.Model.Game	as Test.QuickCheck.Model.Game
import qualified	BishBosh.Type.Length			as Type.Length
import qualified	Data.Default
import qualified	Data.Maybe
import qualified	Test.QuickCheck

instance (Enum x, Enum y, Ord x, Ord y, Show x, Show y) => Test.QuickCheck.Arbitrary (Model.GameTree.GameTree x y) where
	arbitrary	= do
		depth	<- Test.QuickCheck.elements [1 .. 3]

		fmap (Property.Arboreal.prune depth . Model.GameTree.fromGame) Test.QuickCheck.arbitrary

-- | Define a concrete type for testing.
type GameTree	= Model.GameTree.GameTree Type.Length.X Type.Length.Y

-- | The constant test-results for this data-type.
results :: IO [Test.QuickCheck.Result]
results	= sequence [
	let
		f :: Test.QuickCheck.Model.Game.Game -> Test.QuickCheck.Property
		f = Test.QuickCheck.label "GameTree.prop_traceRoute" . (
			\turns -> Data.Maybe.maybe False (
				(== Just turns) . mapM Model.Game.maybeLastTurn
			) $ Model.GameTree.traceRoute Data.Default.def turns
		 ) . Model.Game.listTurnsChronologically
	in Test.QuickCheck.quickCheckWithResult Test.QuickCheck.stdArgs { Test.QuickCheck.maxSuccess = 64 } f
 ]