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{-# LANGUAGE TemplateHaskell #-}

{-# OPTIONS_GHC -fno-warn-orphans #-}

{-| Unittests for ganeti-htools.

-}

{-

Copyright (C) 2009, 2010, 2011, 2012 Google Inc.

This program 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 2 of the License, or

(at your option) any later version.

This program 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 this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301, USA.

-}

module Test.Ganeti.Objects

  ( testObjects

  , Hypervisor(..)

  , Node(..)

  ) where

import Test.QuickCheck

import Control.Applicative

import qualified Data.Map as Map

import qualified Data.Set as Set

import qualified Text.JSON as J

import Test.Ganeti.TestHelper

import Test.Ganeti.TestCommon

import Ganeti.Objects as Objects

-- * Arbitrary instances

instance Arbitrary Hypervisor where

  arbitrary = elements [minBound..maxBound]

instance Arbitrary PartialNDParams where

  arbitrary = PartialNDParams <$> arbitrary <*> arbitrary

instance Arbitrary Node where

  arbitrary = Node <$> getFQDN <*> getFQDN <*> getFQDN

              <*> arbitrary <*> arbitrary <*> arbitrary <*> getFQDN

              <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary

              <*> arbitrary <*> arbitrary <*> getFQDN <*> arbitrary

              <*> (Set.fromList <$> genTags)

instance Arbitrary FileDriver where

  arbitrary = elements [minBound..maxBound]

instance Arbitrary BlockDriver where

  arbitrary = elements [minBound..maxBound]

instance Arbitrary DiskMode where

  arbitrary = elements [minBound..maxBound]

instance Arbitrary DiskLogicalId where

  arbitrary = oneof [ LIDPlain <$> arbitrary <*> arbitrary

                    , LIDDrbd8 <$> getFQDN <*> getFQDN <*> arbitrary

                               <*> arbitrary <*> arbitrary <*> arbitrary

                    , LIDFile  <$> arbitrary <*> arbitrary

                    , LIDBlockDev <$> arbitrary <*> arbitrary

                    , LIDRados <$> arbitrary <*> arbitrary

                    ]

-- | 'Disk' 'arbitrary' instance. Since we don't test disk hierarchy

-- properties, we only generate disks with no children (FIXME), as

-- generating recursive datastructures is a bit more work.

instance Arbitrary Disk where

  arbitrary = Disk <$> arbitrary <*> (pure []) <*> arbitrary

                   <*> arbitrary <*> arbitrary

-- * Test properties

-- | Tests that fillDict behaves correctly

prop_fillDict :: [(Int, Int)] -> [(Int, Int)] -> Property

prop_fillDict defaults custom =

  let d_map = Map.fromList defaults

      d_keys = map fst defaults

      c_map = Map.fromList custom

      c_keys = map fst custom

  in printTestCase "Empty custom filling"

      (fillDict d_map Map.empty [] == d_map) .&&.

     printTestCase "Empty defaults filling"

      (fillDict Map.empty c_map [] == c_map) .&&.

     printTestCase "Delete all keys"

      (fillDict d_map c_map (d_keys++c_keys) == Map.empty)

-- | Test that the serialisation of 'DiskLogicalId', which is

-- implemented manually, is idempotent. Since we don't have a

-- standalone JSON instance for DiskLogicalId (it's a data type that

-- expands over two fields in a JSObject), we test this by actially

-- testing entire Disk serialisations. So this tests two things at

-- once, basically.

prop_Disk_serialisation :: Disk -> Property

prop_Disk_serialisation disk =

  J.readJSON (J.showJSON disk) ==? J.Ok disk

-- | Check that node serialisation is idempotent.

prop_Node_serialisation :: Node -> Property

prop_Node_serialisation node =

  J.readJSON (J.showJSON node) ==? J.Ok node

testSuite "Objects"

  [ 'prop_fillDict

  , 'prop_Disk_serialisation

  , 'prop_Node_serialisation

  ]