root / htools / Ganeti / HTools / QC.hs @ 6a855aaa
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{-# LANGUAGE TemplateHaskell #-} |
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|
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{-| Unittests for ganeti-htools. |
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|
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-} |
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|
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{- |
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|
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Copyright (C) 2009, 2010, 2011, 2012 Google Inc. |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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02110-1301, USA. |
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|
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-} |
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|
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module Ganeti.HTools.QC |
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( testUtils |
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, testPeerMap |
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, testContainer |
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, testInstance |
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, testNode |
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, testText |
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, testOpCodes |
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, testJobs |
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, testCluster |
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, testLoader |
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, testTypes |
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) where |
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|
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import Test.QuickCheck |
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import Data.List (findIndex, intercalate, nub, isPrefixOf) |
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import Data.Maybe |
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import Control.Monad |
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import qualified Text.JSON as J |
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import qualified Data.Map |
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import qualified Data.IntMap as IntMap |
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import qualified Ganeti.OpCodes as OpCodes |
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import qualified Ganeti.Jobs as Jobs |
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import qualified Ganeti.Luxi |
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import qualified Ganeti.HTools.CLI as CLI |
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import qualified Ganeti.HTools.Cluster as Cluster |
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import qualified Ganeti.HTools.Container as Container |
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import qualified Ganeti.HTools.ExtLoader |
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import qualified Ganeti.HTools.IAlloc as IAlloc |
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import qualified Ganeti.HTools.Instance as Instance |
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import qualified Ganeti.HTools.JSON as JSON |
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import qualified Ganeti.HTools.Loader as Loader |
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import qualified Ganeti.HTools.Luxi |
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import qualified Ganeti.HTools.Node as Node |
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import qualified Ganeti.HTools.Group as Group |
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import qualified Ganeti.HTools.PeerMap as PeerMap |
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import qualified Ganeti.HTools.Rapi |
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import qualified Ganeti.HTools.Simu |
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import qualified Ganeti.HTools.Text as Text |
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import qualified Ganeti.HTools.Types as Types |
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import qualified Ganeti.HTools.Utils as Utils |
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import qualified Ganeti.HTools.Version |
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import qualified Ganeti.Constants as C |
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|
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import qualified Ganeti.HTools.Program.Hail |
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import qualified Ganeti.HTools.Program.Hbal |
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import qualified Ganeti.HTools.Program.Hscan |
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import qualified Ganeti.HTools.Program.Hspace |
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|
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import Ganeti.HTools.QCHelper (testSuite) |
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|
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-- * Constants |
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|
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-- | Maximum memory (1TiB, somewhat random value). |
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maxMem :: Int |
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maxMem = 1024 * 1024 |
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|
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-- | Maximum disk (8TiB, somewhat random value). |
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maxDsk :: Int |
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maxDsk = 1024 * 1024 * 8 |
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|
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-- | Max CPUs (1024, somewhat random value). |
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maxCpu :: Int |
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maxCpu = 1024 |
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|
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-- | Null iPolicy, and by null we mean very liberal. |
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nullIPolicy = Types.IPolicy |
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{ Types.iPolicyMinSpec = Types.ISpec { Types.iSpecMemorySize = 0 |
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, Types.iSpecCpuCount = 0 |
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, Types.iSpecDiskSize = 0 |
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, Types.iSpecDiskCount = 0 |
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, Types.iSpecNicCount = 0 |
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} |
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, Types.iPolicyMaxSpec = Types.ISpec { Types.iSpecMemorySize = maxBound |
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, Types.iSpecCpuCount = maxBound |
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, Types.iSpecDiskSize = maxBound |
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, Types.iSpecDiskCount = C.maxDisks |
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, Types.iSpecNicCount = C.maxNics |
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} |
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, Types.iPolicyStdSpec = Types.ISpec { Types.iSpecMemorySize = Types.unitMem |
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, Types.iSpecCpuCount = Types.unitCpu |
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, Types.iSpecDiskSize = Types.unitDsk |
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, Types.iSpecDiskCount = 1 |
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, Types.iSpecNicCount = 1 |
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} |
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, Types.iPolicyDiskTemplates = [Types.DTDrbd8, Types.DTPlain] |
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} |
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|
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|
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defGroup :: Group.Group |
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defGroup = flip Group.setIdx 0 $ |
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Group.create "default" Types.defaultGroupID Types.AllocPreferred |
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nullIPolicy |
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|
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defGroupList :: Group.List |
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defGroupList = Container.fromList [(Group.idx defGroup, defGroup)] |
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|
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defGroupAssoc :: Data.Map.Map String Types.Gdx |
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defGroupAssoc = Data.Map.singleton (Group.uuid defGroup) (Group.idx defGroup) |
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|
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-- * Helper functions |
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|
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-- | Simple checker for whether OpResult is fail or pass. |
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isFailure :: Types.OpResult a -> Bool |
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isFailure (Types.OpFail _) = True |
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isFailure _ = False |
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|
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-- | Checks for equality with proper annotation. |
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(==?) :: (Show a, Eq a) => a -> a -> Property |
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(==?) x y = printTestCase |
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("Expected equality, but '" ++ |
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show x ++ "' /= '" ++ show y ++ "'") (x == y) |
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infix 3 ==? |
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|
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-- | Show a message and fail the test. |
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failTest :: String -> Property |
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failTest msg = printTestCase msg False |
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|
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-- | Update an instance to be smaller than a node. |
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setInstanceSmallerThanNode node inst = |
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inst { Instance.mem = Node.availMem node `div` 2 |
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, Instance.dsk = Node.availDisk node `div` 2 |
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, Instance.vcpus = Node.availCpu node `div` 2 |
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} |
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|
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-- | Check if an instance is smaller than a node. |
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isInstanceSmallerThanNode node inst = |
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Instance.mem inst <= Node.availMem node `div` 2 && |
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Instance.dsk inst <= Node.availDisk node `div` 2 && |
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Instance.vcpus inst <= Node.availCpu node `div` 2 |
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|
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-- | Create an instance given its spec. |
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createInstance mem dsk vcpus = |
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Instance.create "inst-unnamed" mem dsk vcpus Types.Running [] True (-1) (-1) |
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Types.DTDrbd8 |
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|
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-- | Create a small cluster by repeating a node spec. |
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makeSmallCluster :: Node.Node -> Int -> Node.List |
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makeSmallCluster node count = |
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let origname = Node.name node |
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origalias = Node.alias node |
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nodes = map (\idx -> node { Node.name = origname ++ "-" ++ show idx |
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, Node.alias = origalias ++ "-" ++ show idx }) |
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[1..count] |
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fn = flip Node.buildPeers Container.empty |
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namelst = map (\n -> (Node.name n, fn n)) nodes |
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(_, nlst) = Loader.assignIndices namelst |
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in nlst |
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|
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-- | Make a small cluster, both nodes and instances. |
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makeSmallEmptyCluster :: Node.Node -> Int -> Instance.Instance |
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-> (Node.List, Instance.List, Instance.Instance) |
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makeSmallEmptyCluster node count inst = |
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(makeSmallCluster node count, Container.empty, |
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setInstanceSmallerThanNode node inst) |
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|
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-- | Checks if a node is "big" enough. |
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isNodeBig :: Int -> Node.Node -> Bool |
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isNodeBig size node = Node.availDisk node > size * Types.unitDsk |
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&& Node.availMem node > size * Types.unitMem |
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&& Node.availCpu node > size * Types.unitCpu |
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|
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canBalance :: Cluster.Table -> Bool -> Bool -> Bool -> Bool |
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canBalance tbl dm im evac = isJust $ Cluster.tryBalance tbl dm im evac 0 0 |
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|
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-- | Assigns a new fresh instance to a cluster; this is not |
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-- allocation, so no resource checks are done. |
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assignInstance :: Node.List -> Instance.List -> Instance.Instance -> |
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Types.Idx -> Types.Idx -> |
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(Node.List, Instance.List) |
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assignInstance nl il inst pdx sdx = |
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let pnode = Container.find pdx nl |
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snode = Container.find sdx nl |
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maxiidx = if Container.null il |
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then 0 |
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else fst (Container.findMax il) + 1 |
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inst' = inst { Instance.idx = maxiidx, |
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Instance.pNode = pdx, Instance.sNode = sdx } |
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pnode' = Node.setPri pnode inst' |
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snode' = Node.setSec snode inst' |
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nl' = Container.addTwo pdx pnode' sdx snode' nl |
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il' = Container.add maxiidx inst' il |
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in (nl', il') |
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|
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-- * Arbitrary instances |
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|
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-- | Defines a DNS name. |
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newtype DNSChar = DNSChar { dnsGetChar::Char } |
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|
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instance Arbitrary DNSChar where |
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arbitrary = do |
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x <- elements (['a'..'z'] ++ ['0'..'9'] ++ "_-") |
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return (DNSChar x) |
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|
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getName :: Gen String |
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getName = do |
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n <- choose (1, 64) |
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dn <- vector n::Gen [DNSChar] |
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return (map dnsGetChar dn) |
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|
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getFQDN :: Gen String |
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getFQDN = do |
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felem <- getName |
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ncomps <- choose (1, 4) |
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frest <- vector ncomps::Gen [[DNSChar]] |
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let frest' = map (map dnsGetChar) frest |
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return (felem ++ "." ++ intercalate "." frest') |
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|
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-- | Defines a tag type. |
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newtype TagChar = TagChar { tagGetChar :: Char } |
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|
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-- | All valid tag chars. This doesn't need to match _exactly_ |
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-- Ganeti's own tag regex, just enough for it to be close. |
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tagChar :: [Char] |
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tagChar = ['a'..'z'] ++ ['A'..'Z'] ++ ['0'..'9'] ++ ".+*/:@-" |
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|
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instance Arbitrary TagChar where |
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arbitrary = do |
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c <- elements tagChar |
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return (TagChar c) |
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|
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-- | Generates a tag |
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genTag :: Gen [TagChar] |
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genTag = do |
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-- the correct value would be C.maxTagLen, but that's way too |
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-- verbose in unittests, and at the moment I don't see any possible |
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-- bugs with longer tags and the way we use tags in htools |
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n <- choose (1, 10) |
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vector n |
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|
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-- | Generates a list of tags (correctly upper bounded). |
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genTags :: Gen [String] |
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genTags = do |
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-- the correct value would be C.maxTagsPerObj, but per the comment |
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-- in genTag, we don't use tags enough in htools to warrant testing |
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-- such big values |
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n <- choose (0, 10::Int) |
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tags <- mapM (const genTag) [1..n] |
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return $ map (map tagGetChar) tags |
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|
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instance Arbitrary Types.InstanceStatus where |
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arbitrary = elements [minBound..maxBound] |
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|
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-- let's generate a random instance |
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instance Arbitrary Instance.Instance where |
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arbitrary = do |
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name <- getFQDN |
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mem <- choose (0, maxMem) |
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dsk <- choose (0, maxDsk) |
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run_st <- arbitrary |
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pn <- arbitrary |
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sn <- arbitrary |
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vcpus <- choose (0, maxCpu) |
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return $ Instance.create name mem dsk vcpus run_st [] True pn sn |
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Types.DTDrbd8 |
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|
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-- | Generas an arbitrary node based on sizing information. |
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genNode :: Maybe Int -- ^ Minimum node size in terms of units |
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-> Maybe Int -- ^ Maximum node size (when Nothing, bounded |
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-- just by the max... constants) |
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-> Gen Node.Node |
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genNode min_multiplier max_multiplier = do |
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let (base_mem, base_dsk, base_cpu) = |
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case min_multiplier of |
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Just mm -> (mm * Types.unitMem, |
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mm * Types.unitDsk, |
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mm * Types.unitCpu) |
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Nothing -> (0, 0, 0) |
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(top_mem, top_dsk, top_cpu) = |
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case max_multiplier of |
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Just mm -> (mm * Types.unitMem, |
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mm * Types.unitDsk, |
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mm * Types.unitCpu) |
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Nothing -> (maxMem, maxDsk, maxCpu) |
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name <- getFQDN |
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mem_t <- choose (base_mem, top_mem) |
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mem_f <- choose (base_mem, mem_t) |
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mem_n <- choose (0, mem_t - mem_f) |
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dsk_t <- choose (base_dsk, top_dsk) |
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dsk_f <- choose (base_dsk, dsk_t) |
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cpu_t <- choose (base_cpu, top_cpu) |
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offl <- arbitrary |
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let n = Node.create name (fromIntegral mem_t) mem_n mem_f |
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(fromIntegral dsk_t) dsk_f (fromIntegral cpu_t) offl 0 |
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n' = Node.setPolicy nullIPolicy n |
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return $ Node.buildPeers n' Container.empty |
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|
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-- | Helper function to generate a sane node. |
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genOnlineNode :: Gen Node.Node |
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genOnlineNode = do |
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arbitrary `suchThat` (\n -> not (Node.offline n) && |
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not (Node.failN1 n) && |
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Node.availDisk n > 0 && |
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Node.availMem n > 0 && |
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Node.availCpu n > 0) |
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|
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-- and a random node |
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instance Arbitrary Node.Node where |
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arbitrary = genNode Nothing Nothing |
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|
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-- replace disks |
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instance Arbitrary OpCodes.ReplaceDisksMode where |
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arbitrary = elements [minBound..maxBound] |
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|
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instance Arbitrary OpCodes.OpCode where |
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arbitrary = do |
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op_id <- elements [ "OP_TEST_DELAY" |
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, "OP_INSTANCE_REPLACE_DISKS" |
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, "OP_INSTANCE_FAILOVER" |
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, "OP_INSTANCE_MIGRATE" |
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] |
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case op_id of |
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"OP_TEST_DELAY" -> |
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liftM3 OpCodes.OpTestDelay arbitrary arbitrary arbitrary |
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"OP_INSTANCE_REPLACE_DISKS" -> |
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liftM5 OpCodes.OpInstanceReplaceDisks arbitrary arbitrary |
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arbitrary arbitrary arbitrary |
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"OP_INSTANCE_FAILOVER" -> |
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liftM3 OpCodes.OpInstanceFailover arbitrary arbitrary |
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arbitrary |
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"OP_INSTANCE_MIGRATE" -> |
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liftM5 OpCodes.OpInstanceMigrate arbitrary arbitrary |
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arbitrary arbitrary arbitrary |
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_ -> fail "Wrong opcode" |
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|
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instance Arbitrary Jobs.OpStatus where |
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arbitrary = elements [minBound..maxBound] |
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|
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instance Arbitrary Jobs.JobStatus where |
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arbitrary = elements [minBound..maxBound] |
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|
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newtype SmallRatio = SmallRatio Double deriving Show |
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instance Arbitrary SmallRatio where |
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arbitrary = do |
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v <- choose (0, 1) |
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return $ SmallRatio v |
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|
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instance Arbitrary Types.AllocPolicy where |
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arbitrary = elements [minBound..maxBound] |
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|
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instance Arbitrary Types.DiskTemplate where |
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arbitrary = elements [minBound..maxBound] |
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|
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instance Arbitrary Types.FailMode where |
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arbitrary = elements [minBound..maxBound] |
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|
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instance Arbitrary Types.EvacMode where |
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arbitrary = elements [minBound..maxBound] |
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|
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instance Arbitrary a => Arbitrary (Types.OpResult a) where |
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arbitrary = arbitrary >>= \c -> |
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if c |
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then liftM Types.OpGood arbitrary |
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else liftM Types.OpFail arbitrary |
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|
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instance Arbitrary Types.ISpec where |
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arbitrary = do |
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mem <- arbitrary::Gen (NonNegative Int) |
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dsk_c <- arbitrary::Gen (NonNegative Int) |
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dsk_s <- arbitrary::Gen (NonNegative Int) |
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cpu <- arbitrary::Gen (NonNegative Int) |
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nic <- arbitrary::Gen (NonNegative Int) |
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return Types.ISpec { Types.iSpecMemorySize = fromIntegral mem |
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, Types.iSpecCpuCount = fromIntegral cpu |
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, Types.iSpecDiskSize = fromIntegral dsk_s |
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, Types.iSpecDiskCount = fromIntegral dsk_c |
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, Types.iSpecNicCount = fromIntegral nic |
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} |
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|
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-- | Helper function to check whether a spec is LTE than another |
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iSpecSmaller :: Types.ISpec -> Types.ISpec -> Bool |
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iSpecSmaller imin imax = |
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Types.iSpecMemorySize imin <= Types.iSpecMemorySize imax && |
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Types.iSpecCpuCount imin <= Types.iSpecCpuCount imax && |
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Types.iSpecDiskSize imin <= Types.iSpecDiskSize imax && |
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Types.iSpecDiskCount imin <= Types.iSpecDiskCount imax && |
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Types.iSpecNicCount imin <= Types.iSpecNicCount imax |
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|
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instance Arbitrary Types.IPolicy where |
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arbitrary = do |
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imin <- arbitrary |
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istd <- arbitrary `suchThat` (iSpecSmaller imin) |
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imax <- arbitrary `suchThat` (iSpecSmaller istd) |
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dts <- arbitrary |
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return Types.IPolicy { Types.iPolicyMinSpec = imin |
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, Types.iPolicyStdSpec = istd |
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, Types.iPolicyMaxSpec = imax |
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, Types.iPolicyDiskTemplates = dts |
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} |
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|
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-- * Actual tests |
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|
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-- ** Utils tests |
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|
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-- | If the list is not just an empty element, and if the elements do |
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-- not contain commas, then join+split should be idempotent. |
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prop_Utils_commaJoinSplit = |
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forAll (arbitrary `suchThat` |
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(\l -> l /= [""] && all (notElem ',') l )) $ \lst -> |
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Utils.sepSplit ',' (Utils.commaJoin lst) ==? lst |
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|
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-- | Split and join should always be idempotent. |
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prop_Utils_commaSplitJoin s = |
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Utils.commaJoin (Utils.sepSplit ',' s) ==? s |
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|
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-- | fromObjWithDefault, we test using the Maybe monad and an integer |
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-- value. |
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prop_Utils_fromObjWithDefault def_value random_key = |
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-- a missing key will be returned with the default |
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JSON.fromObjWithDefault [] random_key def_value == Just def_value && |
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-- a found key will be returned as is, not with default |
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JSON.fromObjWithDefault [(random_key, J.showJSON def_value)] |
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random_key (def_value+1) == Just def_value |
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where _types = def_value :: Integer |
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|
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-- | Test that functional if' behaves like the syntactic sugar if. |
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prop_Utils_if'if :: Bool -> Int -> Int -> Gen Prop |
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prop_Utils_if'if cnd a b = |
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Utils.if' cnd a b ==? if cnd then a else b |
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|
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-- | Test basic select functionality |
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prop_Utils_select :: Int -- ^ Default result |
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-> [Int] -- ^ List of False values |
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-> [Int] -- ^ List of True values |
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-> Gen Prop -- ^ Test result |
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prop_Utils_select def lst1 lst2 = |
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Utils.select def (flist ++ tlist) ==? expectedresult |
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where expectedresult = Utils.if' (null lst2) def (head lst2) |
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flist = zip (repeat False) lst1 |
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tlist = zip (repeat True) lst2 |
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|
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-- | Test basic select functionality with undefined default |
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prop_Utils_select_undefd :: [Int] -- ^ List of False values |
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-> NonEmptyList Int -- ^ List of True values |
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-> Gen Prop -- ^ Test result |
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prop_Utils_select_undefd lst1 (NonEmpty lst2) = |
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Utils.select undefined (flist ++ tlist) ==? head lst2 |
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where flist = zip (repeat False) lst1 |
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tlist = zip (repeat True) lst2 |
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|
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-- | Test basic select functionality with undefined list values |
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prop_Utils_select_undefv :: [Int] -- ^ List of False values |
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-> NonEmptyList Int -- ^ List of True values |
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-> Gen Prop -- ^ Test result |
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prop_Utils_select_undefv lst1 (NonEmpty lst2) = |
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Utils.select undefined cndlist ==? head lst2 |
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where flist = zip (repeat False) lst1 |
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tlist = zip (repeat True) lst2 |
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cndlist = flist ++ tlist ++ [undefined] |
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|
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prop_Utils_parseUnit (NonNegative n) = |
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Utils.parseUnit (show n) == Types.Ok n && |
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Utils.parseUnit (show n ++ "m") == Types.Ok n && |
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(case Utils.parseUnit (show n ++ "M") of |
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Types.Ok m -> if n > 0 |
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then m < n -- for positive values, X MB is < than X MiB |
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else m == 0 -- but for 0, 0 MB == 0 MiB |
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Types.Bad _ -> False) && |
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Utils.parseUnit (show n ++ "g") == Types.Ok (n*1024) && |
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Utils.parseUnit (show n ++ "t") == Types.Ok (n*1048576) && |
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Types.isBad (Utils.parseUnit (show n ++ "x")::Types.Result Int) |
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where _types = n::Int |
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|
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-- | Test list for the Utils module. |
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testSuite "Utils" |
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[ 'prop_Utils_commaJoinSplit |
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, 'prop_Utils_commaSplitJoin |
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, 'prop_Utils_fromObjWithDefault |
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, 'prop_Utils_if'if |
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, 'prop_Utils_select |
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, 'prop_Utils_select_undefd |
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, 'prop_Utils_select_undefv |
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, 'prop_Utils_parseUnit |
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] |
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|
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-- ** PeerMap tests |
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|
505 |
-- | Make sure add is idempotent. |
506 |
prop_PeerMap_addIdempotent pmap key em = |
507 |
fn puniq ==? fn (fn puniq) |
508 |
where _types = (pmap::PeerMap.PeerMap, |
509 |
key::PeerMap.Key, em::PeerMap.Elem) |
510 |
fn = PeerMap.add key em |
511 |
puniq = PeerMap.accumArray const pmap |
512 |
|
513 |
-- | Make sure remove is idempotent. |
514 |
prop_PeerMap_removeIdempotent pmap key = |
515 |
fn puniq ==? fn (fn puniq) |
516 |
where _types = (pmap::PeerMap.PeerMap, key::PeerMap.Key) |
517 |
fn = PeerMap.remove key |
518 |
puniq = PeerMap.accumArray const pmap |
519 |
|
520 |
-- | Make sure a missing item returns 0. |
521 |
prop_PeerMap_findMissing pmap key = |
522 |
PeerMap.find key (PeerMap.remove key puniq) ==? 0 |
523 |
where _types = (pmap::PeerMap.PeerMap, key::PeerMap.Key) |
524 |
puniq = PeerMap.accumArray const pmap |
525 |
|
526 |
-- | Make sure an added item is found. |
527 |
prop_PeerMap_addFind pmap key em = |
528 |
PeerMap.find key (PeerMap.add key em puniq) ==? em |
529 |
where _types = (pmap::PeerMap.PeerMap, |
530 |
key::PeerMap.Key, em::PeerMap.Elem) |
531 |
puniq = PeerMap.accumArray const pmap |
532 |
|
533 |
-- | Manual check that maxElem returns the maximum indeed, or 0 for null. |
534 |
prop_PeerMap_maxElem pmap = |
535 |
PeerMap.maxElem puniq ==? if null puniq then 0 |
536 |
else (maximum . snd . unzip) puniq |
537 |
where _types = pmap::PeerMap.PeerMap |
538 |
puniq = PeerMap.accumArray const pmap |
539 |
|
540 |
-- | List of tests for the PeerMap module. |
541 |
testSuite "PeerMap" |
542 |
[ 'prop_PeerMap_addIdempotent |
543 |
, 'prop_PeerMap_removeIdempotent |
544 |
, 'prop_PeerMap_maxElem |
545 |
, 'prop_PeerMap_addFind |
546 |
, 'prop_PeerMap_findMissing |
547 |
] |
548 |
|
549 |
-- ** Container tests |
550 |
|
551 |
-- we silence the following due to hlint bug fixed in later versions |
552 |
{-# ANN prop_Container_addTwo "HLint: ignore Avoid lambda" #-} |
553 |
prop_Container_addTwo cdata i1 i2 = |
554 |
fn i1 i2 cont == fn i2 i1 cont && |
555 |
fn i1 i2 cont == fn i1 i2 (fn i1 i2 cont) |
556 |
where _types = (cdata::[Int], |
557 |
i1::Int, i2::Int) |
558 |
cont = foldl (\c x -> Container.add x x c) Container.empty cdata |
559 |
fn x1 x2 = Container.addTwo x1 x1 x2 x2 |
560 |
|
561 |
prop_Container_nameOf node = |
562 |
let nl = makeSmallCluster node 1 |
563 |
fnode = head (Container.elems nl) |
564 |
in Container.nameOf nl (Node.idx fnode) ==? Node.name fnode |
565 |
|
566 |
-- | We test that in a cluster, given a random node, we can find it by |
567 |
-- its name and alias, as long as all names and aliases are unique, |
568 |
-- and that we fail to find a non-existing name. |
569 |
prop_Container_findByName node othername = |
570 |
forAll (choose (1, 20)) $ \ cnt -> |
571 |
forAll (choose (0, cnt - 1)) $ \ fidx -> |
572 |
forAll (vector cnt) $ \ names -> |
573 |
(length . nub) (map fst names ++ map snd names) == |
574 |
length names * 2 && |
575 |
othername `notElem` (map fst names ++ map snd names) ==> |
576 |
let nl = makeSmallCluster node cnt |
577 |
nodes = Container.elems nl |
578 |
nodes' = map (\((name, alias), nn) -> (Node.idx nn, |
579 |
nn { Node.name = name, |
580 |
Node.alias = alias })) |
581 |
$ zip names nodes |
582 |
nl' = Container.fromList nodes' |
583 |
target = snd (nodes' !! fidx) |
584 |
in Container.findByName nl' (Node.name target) == Just target && |
585 |
Container.findByName nl' (Node.alias target) == Just target && |
586 |
isNothing (Container.findByName nl' othername) |
587 |
|
588 |
testSuite "Container" |
589 |
[ 'prop_Container_addTwo |
590 |
, 'prop_Container_nameOf |
591 |
, 'prop_Container_findByName |
592 |
] |
593 |
|
594 |
-- ** Instance tests |
595 |
|
596 |
-- Simple instance tests, we only have setter/getters |
597 |
|
598 |
prop_Instance_creat inst = |
599 |
Instance.name inst ==? Instance.alias inst |
600 |
|
601 |
prop_Instance_setIdx inst idx = |
602 |
Instance.idx (Instance.setIdx inst idx) ==? idx |
603 |
where _types = (inst::Instance.Instance, idx::Types.Idx) |
604 |
|
605 |
prop_Instance_setName inst name = |
606 |
Instance.name newinst == name && |
607 |
Instance.alias newinst == name |
608 |
where _types = (inst::Instance.Instance, name::String) |
609 |
newinst = Instance.setName inst name |
610 |
|
611 |
prop_Instance_setAlias inst name = |
612 |
Instance.name newinst == Instance.name inst && |
613 |
Instance.alias newinst == name |
614 |
where _types = (inst::Instance.Instance, name::String) |
615 |
newinst = Instance.setAlias inst name |
616 |
|
617 |
prop_Instance_setPri inst pdx = |
618 |
Instance.pNode (Instance.setPri inst pdx) ==? pdx |
619 |
where _types = (inst::Instance.Instance, pdx::Types.Ndx) |
620 |
|
621 |
prop_Instance_setSec inst sdx = |
622 |
Instance.sNode (Instance.setSec inst sdx) ==? sdx |
623 |
where _types = (inst::Instance.Instance, sdx::Types.Ndx) |
624 |
|
625 |
prop_Instance_setBoth inst pdx sdx = |
626 |
Instance.pNode si == pdx && Instance.sNode si == sdx |
627 |
where _types = (inst::Instance.Instance, pdx::Types.Ndx, sdx::Types.Ndx) |
628 |
si = Instance.setBoth inst pdx sdx |
629 |
|
630 |
prop_Instance_shrinkMG inst = |
631 |
Instance.mem inst >= 2 * Types.unitMem ==> |
632 |
case Instance.shrinkByType inst Types.FailMem of |
633 |
Types.Ok inst' -> Instance.mem inst' == Instance.mem inst - Types.unitMem |
634 |
_ -> False |
635 |
|
636 |
prop_Instance_shrinkMF inst = |
637 |
forAll (choose (0, 2 * Types.unitMem - 1)) $ \mem -> |
638 |
let inst' = inst { Instance.mem = mem} |
639 |
in Types.isBad $ Instance.shrinkByType inst' Types.FailMem |
640 |
|
641 |
prop_Instance_shrinkCG inst = |
642 |
Instance.vcpus inst >= 2 * Types.unitCpu ==> |
643 |
case Instance.shrinkByType inst Types.FailCPU of |
644 |
Types.Ok inst' -> |
645 |
Instance.vcpus inst' == Instance.vcpus inst - Types.unitCpu |
646 |
_ -> False |
647 |
|
648 |
prop_Instance_shrinkCF inst = |
649 |
forAll (choose (0, 2 * Types.unitCpu - 1)) $ \vcpus -> |
650 |
let inst' = inst { Instance.vcpus = vcpus } |
651 |
in Types.isBad $ Instance.shrinkByType inst' Types.FailCPU |
652 |
|
653 |
prop_Instance_shrinkDG inst = |
654 |
Instance.dsk inst >= 2 * Types.unitDsk ==> |
655 |
case Instance.shrinkByType inst Types.FailDisk of |
656 |
Types.Ok inst' -> |
657 |
Instance.dsk inst' == Instance.dsk inst - Types.unitDsk |
658 |
_ -> False |
659 |
|
660 |
prop_Instance_shrinkDF inst = |
661 |
forAll (choose (0, 2 * Types.unitDsk - 1)) $ \dsk -> |
662 |
let inst' = inst { Instance.dsk = dsk } |
663 |
in Types.isBad $ Instance.shrinkByType inst' Types.FailDisk |
664 |
|
665 |
prop_Instance_setMovable inst m = |
666 |
Instance.movable inst' ==? m |
667 |
where inst' = Instance.setMovable inst m |
668 |
|
669 |
testSuite "Instance" |
670 |
[ 'prop_Instance_creat |
671 |
, 'prop_Instance_setIdx |
672 |
, 'prop_Instance_setName |
673 |
, 'prop_Instance_setAlias |
674 |
, 'prop_Instance_setPri |
675 |
, 'prop_Instance_setSec |
676 |
, 'prop_Instance_setBoth |
677 |
, 'prop_Instance_shrinkMG |
678 |
, 'prop_Instance_shrinkMF |
679 |
, 'prop_Instance_shrinkCG |
680 |
, 'prop_Instance_shrinkCF |
681 |
, 'prop_Instance_shrinkDG |
682 |
, 'prop_Instance_shrinkDF |
683 |
, 'prop_Instance_setMovable |
684 |
] |
685 |
|
686 |
-- ** Text backend tests |
687 |
|
688 |
-- Instance text loader tests |
689 |
|
690 |
prop_Text_Load_Instance name mem dsk vcpus status |
691 |
(NonEmpty pnode) snode |
692 |
(NonNegative pdx) (NonNegative sdx) autobal dt = |
693 |
pnode /= snode && pdx /= sdx ==> |
694 |
let vcpus_s = show vcpus |
695 |
dsk_s = show dsk |
696 |
mem_s = show mem |
697 |
status_s = Types.instanceStatusToRaw status |
698 |
ndx = if null snode |
699 |
then [(pnode, pdx)] |
700 |
else [(pnode, pdx), (snode, sdx)] |
701 |
nl = Data.Map.fromList ndx |
702 |
tags = "" |
703 |
sbal = if autobal then "Y" else "N" |
704 |
sdt = Types.diskTemplateToRaw dt |
705 |
inst = Text.loadInst nl |
706 |
[name, mem_s, dsk_s, vcpus_s, status_s, |
707 |
sbal, pnode, snode, sdt, tags] |
708 |
fail1 = Text.loadInst nl |
709 |
[name, mem_s, dsk_s, vcpus_s, status_s, |
710 |
sbal, pnode, pnode, tags] |
711 |
_types = ( name::String, mem::Int, dsk::Int |
712 |
, vcpus::Int, status::Types.InstanceStatus |
713 |
, snode::String |
714 |
, autobal::Bool) |
715 |
in case inst of |
716 |
Types.Bad msg -> failTest $ "Failed to load instance: " ++ msg |
717 |
Types.Ok (_, i) -> printTestCase "Mismatch in some field while\ |
718 |
\ loading the instance" $ |
719 |
Instance.name i == name && |
720 |
Instance.vcpus i == vcpus && |
721 |
Instance.mem i == mem && |
722 |
Instance.pNode i == pdx && |
723 |
Instance.sNode i == (if null snode |
724 |
then Node.noSecondary |
725 |
else sdx) && |
726 |
Instance.autoBalance i == autobal && |
727 |
Types.isBad fail1 |
728 |
|
729 |
prop_Text_Load_InstanceFail ktn fields = |
730 |
length fields /= 10 ==> |
731 |
case Text.loadInst nl fields of |
732 |
Types.Ok _ -> failTest "Managed to load instance from invalid data" |
733 |
Types.Bad msg -> printTestCase ("Unrecognised error message: " ++ msg) $ |
734 |
"Invalid/incomplete instance data: '" `isPrefixOf` msg |
735 |
where nl = Data.Map.fromList ktn |
736 |
|
737 |
prop_Text_Load_Node name tm nm fm td fd tc fo = |
738 |
let conv v = if v < 0 |
739 |
then "?" |
740 |
else show v |
741 |
tm_s = conv tm |
742 |
nm_s = conv nm |
743 |
fm_s = conv fm |
744 |
td_s = conv td |
745 |
fd_s = conv fd |
746 |
tc_s = conv tc |
747 |
fo_s = if fo |
748 |
then "Y" |
749 |
else "N" |
750 |
any_broken = any (< 0) [tm, nm, fm, td, fd, tc] |
751 |
gid = Group.uuid defGroup |
752 |
in case Text.loadNode defGroupAssoc |
753 |
[name, tm_s, nm_s, fm_s, td_s, fd_s, tc_s, fo_s, gid] of |
754 |
Nothing -> False |
755 |
Just (name', node) -> |
756 |
if fo || any_broken |
757 |
then Node.offline node |
758 |
else Node.name node == name' && name' == name && |
759 |
Node.alias node == name && |
760 |
Node.tMem node == fromIntegral tm && |
761 |
Node.nMem node == nm && |
762 |
Node.fMem node == fm && |
763 |
Node.tDsk node == fromIntegral td && |
764 |
Node.fDsk node == fd && |
765 |
Node.tCpu node == fromIntegral tc |
766 |
|
767 |
prop_Text_Load_NodeFail fields = |
768 |
length fields /= 8 ==> isNothing $ Text.loadNode Data.Map.empty fields |
769 |
|
770 |
prop_Text_NodeLSIdempotent node = |
771 |
(Text.loadNode defGroupAssoc. |
772 |
Utils.sepSplit '|' . Text.serializeNode defGroupList) n == |
773 |
Just (Node.name n, n) |
774 |
-- override failN1 to what loadNode returns by default |
775 |
where n = node { Node.failN1 = True, Node.offline = False |
776 |
, Node.iPolicy = Types.defIPolicy } |
777 |
|
778 |
prop_Text_ISpecIdempotent ispec = |
779 |
case Text.loadISpec "dummy" . Utils.sepSplit ',' . |
780 |
Text.serializeISpec $ ispec of |
781 |
Types.Bad msg -> failTest $ "Failed to load ispec: " ++ msg |
782 |
Types.Ok ispec' -> ispec ==? ispec' |
783 |
|
784 |
prop_Text_IPolicyIdempotent ipol = |
785 |
case Text.loadIPolicy . Utils.sepSplit '|' $ |
786 |
Text.serializeIPolicy owner ipol of |
787 |
Types.Bad msg -> failTest $ "Failed to load ispec: " ++ msg |
788 |
Types.Ok res -> (owner, ipol) ==? res |
789 |
where owner = "dummy" |
790 |
|
791 |
-- | This property, while being in the text tests, does more than just |
792 |
-- test end-to-end the serialisation and loading back workflow; it |
793 |
-- also tests the Loader.mergeData and the actuall |
794 |
-- Cluster.iterateAlloc (for well-behaving w.r.t. instance |
795 |
-- allocations, not for the business logic). As such, it's a quite |
796 |
-- complex and slow test, and that's the reason we restrict it to |
797 |
-- small cluster sizes. |
798 |
prop_Text_CreateSerialise = |
799 |
forAll genTags $ \ctags -> |
800 |
forAll (choose (1, 2)) $ \reqnodes -> |
801 |
forAll (choose (1, 20)) $ \maxiter -> |
802 |
forAll (choose (2, 10)) $ \count -> |
803 |
forAll genOnlineNode $ \node -> |
804 |
forAll (arbitrary `suchThat` isInstanceSmallerThanNode node) $ \inst -> |
805 |
let inst' = Instance.setMovable inst $ Utils.if' (reqnodes == 2) True False |
806 |
nl = makeSmallCluster node count |
807 |
in case Cluster.genAllocNodes defGroupList nl reqnodes True >>= \allocn -> |
808 |
Cluster.iterateAlloc nl Container.empty (Just maxiter) inst' allocn [] [] |
809 |
of |
810 |
Types.Bad msg -> failTest $ "Failed to allocate: " ++ msg |
811 |
Types.Ok (_, _, _, [], _) -> printTestCase |
812 |
"Failed to allocate: no allocations" False |
813 |
Types.Ok (_, nl', il', _, _) -> |
814 |
let cdata = Loader.ClusterData defGroupList nl' il' ctags |
815 |
Types.defIPolicy |
816 |
saved = Text.serializeCluster cdata |
817 |
in case Text.parseData saved >>= Loader.mergeData [] [] [] [] of |
818 |
Types.Bad msg -> failTest $ "Failed to load/merge: " ++ msg |
819 |
Types.Ok (Loader.ClusterData gl2 nl2 il2 ctags2 cpol2) -> |
820 |
ctags ==? ctags2 .&&. |
821 |
Types.defIPolicy ==? cpol2 .&&. |
822 |
il' ==? il2 .&&. |
823 |
defGroupList ==? gl2 .&&. |
824 |
nl' ==? nl2 |
825 |
|
826 |
testSuite "Text" |
827 |
[ 'prop_Text_Load_Instance |
828 |
, 'prop_Text_Load_InstanceFail |
829 |
, 'prop_Text_Load_Node |
830 |
, 'prop_Text_Load_NodeFail |
831 |
, 'prop_Text_NodeLSIdempotent |
832 |
, 'prop_Text_ISpecIdempotent |
833 |
, 'prop_Text_IPolicyIdempotent |
834 |
, 'prop_Text_CreateSerialise |
835 |
] |
836 |
|
837 |
-- ** Node tests |
838 |
|
839 |
prop_Node_setAlias node name = |
840 |
Node.name newnode == Node.name node && |
841 |
Node.alias newnode == name |
842 |
where _types = (node::Node.Node, name::String) |
843 |
newnode = Node.setAlias node name |
844 |
|
845 |
prop_Node_setOffline node status = |
846 |
Node.offline newnode ==? status |
847 |
where newnode = Node.setOffline node status |
848 |
|
849 |
prop_Node_setXmem node xm = |
850 |
Node.xMem newnode ==? xm |
851 |
where newnode = Node.setXmem node xm |
852 |
|
853 |
prop_Node_setMcpu node mc = |
854 |
Node.mCpu newnode ==? mc |
855 |
where newnode = Node.setMcpu node mc |
856 |
|
857 |
-- | Check that an instance add with too high memory or disk will be |
858 |
-- rejected. |
859 |
prop_Node_addPriFM node inst = |
860 |
Instance.mem inst >= Node.fMem node && not (Node.failN1 node) && |
861 |
not (Instance.instanceOffline inst) ==> |
862 |
case Node.addPri node inst'' of |
863 |
Types.OpFail Types.FailMem -> True |
864 |
_ -> False |
865 |
where _types = (node::Node.Node, inst::Instance.Instance) |
866 |
inst' = setInstanceSmallerThanNode node inst |
867 |
inst'' = inst' { Instance.mem = Instance.mem inst } |
868 |
|
869 |
prop_Node_addPriFD node inst = |
870 |
Instance.dsk inst >= Node.fDsk node && not (Node.failN1 node) ==> |
871 |
case Node.addPri node inst'' of |
872 |
Types.OpFail Types.FailDisk -> True |
873 |
_ -> False |
874 |
where _types = (node::Node.Node, inst::Instance.Instance) |
875 |
inst' = setInstanceSmallerThanNode node inst |
876 |
inst'' = inst' { Instance.dsk = Instance.dsk inst } |
877 |
|
878 |
prop_Node_addPriFC node inst (Positive extra) = |
879 |
not (Node.failN1 node) && not (Instance.instanceOffline inst) ==> |
880 |
case Node.addPri node inst'' of |
881 |
Types.OpFail Types.FailCPU -> True |
882 |
_ -> False |
883 |
where _types = (node::Node.Node, inst::Instance.Instance) |
884 |
inst' = setInstanceSmallerThanNode node inst |
885 |
inst'' = inst' { Instance.vcpus = Node.availCpu node + extra } |
886 |
|
887 |
-- | Check that an instance add with too high memory or disk will be |
888 |
-- rejected. |
889 |
prop_Node_addSec node inst pdx = |
890 |
((Instance.mem inst >= (Node.fMem node - Node.rMem node) && |
891 |
not (Instance.instanceOffline inst)) || |
892 |
Instance.dsk inst >= Node.fDsk node) && |
893 |
not (Node.failN1 node) ==> |
894 |
isFailure (Node.addSec node inst pdx) |
895 |
where _types = (node::Node.Node, inst::Instance.Instance, pdx::Int) |
896 |
|
897 |
-- | Check that an offline instance with reasonable disk size can always |
898 |
-- be added. |
899 |
prop_Node_addPriOffline = |
900 |
forAll (arbitrary `suchThat` ((> 0) . Node.fMem)) $ \node -> |
901 |
forAll (arbitrary `suchThat` |
902 |
(\ x -> (Instance.dsk x < Node.fDsk node) && |
903 |
Instance.instanceOffline x)) $ \inst -> |
904 |
case Node.addPri node inst of |
905 |
Types.OpGood _ -> True |
906 |
_ -> False |
907 |
|
908 |
prop_Node_addSecOffline pdx = |
909 |
forAll (arbitrary `suchThat` ((> 0) . Node.fMem)) $ \node -> |
910 |
forAll (arbitrary `suchThat` |
911 |
(\ x -> (Instance.dsk x < Node.fDsk node) && |
912 |
Instance.instanceOffline x)) $ \inst -> |
913 |
case Node.addSec node inst pdx of |
914 |
Types.OpGood _ -> True |
915 |
_ -> False |
916 |
|
917 |
-- | Checks for memory reservation changes. |
918 |
prop_Node_rMem inst = |
919 |
not (Instance.instanceOffline inst) ==> |
920 |
forAll (arbitrary `suchThat` ((> Types.unitMem) . Node.fMem)) $ \node -> |
921 |
-- ab = auto_balance, nb = non-auto_balance |
922 |
-- we use -1 as the primary node of the instance |
923 |
let inst' = inst { Instance.pNode = -1, Instance.autoBalance = True } |
924 |
inst_ab = setInstanceSmallerThanNode node inst' |
925 |
inst_nb = inst_ab { Instance.autoBalance = False } |
926 |
-- now we have the two instances, identical except the |
927 |
-- autoBalance attribute |
928 |
orig_rmem = Node.rMem node |
929 |
inst_idx = Instance.idx inst_ab |
930 |
node_add_ab = Node.addSec node inst_ab (-1) |
931 |
node_add_nb = Node.addSec node inst_nb (-1) |
932 |
node_del_ab = liftM (`Node.removeSec` inst_ab) node_add_ab |
933 |
node_del_nb = liftM (`Node.removeSec` inst_nb) node_add_nb |
934 |
in case (node_add_ab, node_add_nb, node_del_ab, node_del_nb) of |
935 |
(Types.OpGood a_ab, Types.OpGood a_nb, |
936 |
Types.OpGood d_ab, Types.OpGood d_nb) -> |
937 |
printTestCase "Consistency checks failed" $ |
938 |
Node.rMem a_ab > orig_rmem && |
939 |
Node.rMem a_ab - orig_rmem == Instance.mem inst_ab && |
940 |
Node.rMem a_nb == orig_rmem && |
941 |
Node.rMem d_ab == orig_rmem && |
942 |
Node.rMem d_nb == orig_rmem && |
943 |
-- this is not related to rMem, but as good a place to |
944 |
-- test as any |
945 |
inst_idx `elem` Node.sList a_ab && |
946 |
inst_idx `notElem` Node.sList d_ab |
947 |
x -> failTest $ "Failed to add/remove instances: " ++ show x |
948 |
|
949 |
-- | Check mdsk setting. |
950 |
prop_Node_setMdsk node mx = |
951 |
Node.loDsk node' >= 0 && |
952 |
fromIntegral (Node.loDsk node') <= Node.tDsk node && |
953 |
Node.availDisk node' >= 0 && |
954 |
Node.availDisk node' <= Node.fDsk node' && |
955 |
fromIntegral (Node.availDisk node') <= Node.tDsk node' && |
956 |
Node.mDsk node' == mx' |
957 |
where _types = (node::Node.Node, mx::SmallRatio) |
958 |
node' = Node.setMdsk node mx' |
959 |
SmallRatio mx' = mx |
960 |
|
961 |
-- Check tag maps |
962 |
prop_Node_tagMaps_idempotent tags = |
963 |
Node.delTags (Node.addTags m tags) tags ==? m |
964 |
where m = Data.Map.empty |
965 |
|
966 |
prop_Node_tagMaps_reject tags = |
967 |
not (null tags) ==> |
968 |
all (\t -> Node.rejectAddTags m [t]) tags |
969 |
where m = Node.addTags Data.Map.empty tags |
970 |
|
971 |
prop_Node_showField node = |
972 |
forAll (elements Node.defaultFields) $ \ field -> |
973 |
fst (Node.showHeader field) /= Types.unknownField && |
974 |
Node.showField node field /= Types.unknownField |
975 |
|
976 |
prop_Node_computeGroups nodes = |
977 |
let ng = Node.computeGroups nodes |
978 |
onlyuuid = map fst ng |
979 |
in length nodes == sum (map (length . snd) ng) && |
980 |
all (\(guuid, ns) -> all ((== guuid) . Node.group) ns) ng && |
981 |
length (nub onlyuuid) == length onlyuuid && |
982 |
(null nodes || not (null ng)) |
983 |
|
984 |
testSuite "Node" |
985 |
[ 'prop_Node_setAlias |
986 |
, 'prop_Node_setOffline |
987 |
, 'prop_Node_setMcpu |
988 |
, 'prop_Node_setXmem |
989 |
, 'prop_Node_addPriFM |
990 |
, 'prop_Node_addPriFD |
991 |
, 'prop_Node_addPriFC |
992 |
, 'prop_Node_addSec |
993 |
, 'prop_Node_addPriOffline |
994 |
, 'prop_Node_addSecOffline |
995 |
, 'prop_Node_rMem |
996 |
, 'prop_Node_setMdsk |
997 |
, 'prop_Node_tagMaps_idempotent |
998 |
, 'prop_Node_tagMaps_reject |
999 |
, 'prop_Node_showField |
1000 |
, 'prop_Node_computeGroups |
1001 |
] |
1002 |
|
1003 |
-- ** Cluster tests |
1004 |
|
1005 |
-- | Check that the cluster score is close to zero for a homogeneous |
1006 |
-- cluster. |
1007 |
prop_Score_Zero node = |
1008 |
forAll (choose (1, 1024)) $ \count -> |
1009 |
(not (Node.offline node) && not (Node.failN1 node) && (count > 0) && |
1010 |
(Node.tDsk node > 0) && (Node.tMem node > 0)) ==> |
1011 |
let fn = Node.buildPeers node Container.empty |
1012 |
nlst = replicate count fn |
1013 |
score = Cluster.compCVNodes nlst |
1014 |
-- we can't say == 0 here as the floating point errors accumulate; |
1015 |
-- this should be much lower than the default score in CLI.hs |
1016 |
in score <= 1e-12 |
1017 |
|
1018 |
-- | Check that cluster stats are sane. |
1019 |
prop_CStats_sane = |
1020 |
forAll (choose (1, 1024)) $ \count -> |
1021 |
forAll genOnlineNode $ \node -> |
1022 |
let fn = Node.buildPeers node Container.empty |
1023 |
nlst = zip [1..] $ replicate count fn::[(Types.Ndx, Node.Node)] |
1024 |
nl = Container.fromList nlst |
1025 |
cstats = Cluster.totalResources nl |
1026 |
in Cluster.csAdsk cstats >= 0 && |
1027 |
Cluster.csAdsk cstats <= Cluster.csFdsk cstats |
1028 |
|
1029 |
-- | Check that one instance is allocated correctly, without |
1030 |
-- rebalances needed. |
1031 |
prop_ClusterAlloc_sane inst = |
1032 |
forAll (choose (5, 20)) $ \count -> |
1033 |
forAll genOnlineNode $ \node -> |
1034 |
let (nl, il, inst') = makeSmallEmptyCluster node count inst |
1035 |
in case Cluster.genAllocNodes defGroupList nl 2 True >>= |
1036 |
Cluster.tryAlloc nl il inst' of |
1037 |
Types.Bad _ -> False |
1038 |
Types.Ok as -> |
1039 |
case Cluster.asSolution as of |
1040 |
Nothing -> False |
1041 |
Just (xnl, xi, _, cv) -> |
1042 |
let il' = Container.add (Instance.idx xi) xi il |
1043 |
tbl = Cluster.Table xnl il' cv [] |
1044 |
in not (canBalance tbl True True False) |
1045 |
|
1046 |
-- | Checks that on a 2-5 node cluster, we can allocate a random |
1047 |
-- instance spec via tiered allocation (whatever the original instance |
1048 |
-- spec), on either one or two nodes. |
1049 |
prop_ClusterCanTieredAlloc inst = |
1050 |
forAll (choose (2, 5)) $ \count -> |
1051 |
forAll (choose (1, 2)) $ \rqnodes -> |
1052 |
forAll (genOnlineNode `suchThat` (isNodeBig 4)) $ \node -> |
1053 |
let nl = makeSmallCluster node count |
1054 |
il = Container.empty |
1055 |
allocnodes = Cluster.genAllocNodes defGroupList nl rqnodes True |
1056 |
in case allocnodes >>= \allocnodes' -> |
1057 |
Cluster.tieredAlloc nl il (Just 1) inst allocnodes' [] [] of |
1058 |
Types.Bad _ -> False |
1059 |
Types.Ok (_, _, il', ixes, cstats) -> not (null ixes) && |
1060 |
IntMap.size il' == length ixes && |
1061 |
length ixes == length cstats |
1062 |
|
1063 |
-- | Helper function to create a cluster with the given range of nodes |
1064 |
-- and allocate an instance on it. |
1065 |
genClusterAlloc count node inst = |
1066 |
let nl = makeSmallCluster node count |
1067 |
in case Cluster.genAllocNodes defGroupList nl 2 True >>= |
1068 |
Cluster.tryAlloc nl Container.empty inst of |
1069 |
Types.Bad _ -> Types.Bad "Can't allocate" |
1070 |
Types.Ok as -> |
1071 |
case Cluster.asSolution as of |
1072 |
Nothing -> Types.Bad "Empty solution?" |
1073 |
Just (xnl, xi, _, _) -> |
1074 |
let xil = Container.add (Instance.idx xi) xi Container.empty |
1075 |
in Types.Ok (xnl, xil, xi) |
1076 |
|
1077 |
-- | Checks that on a 4-8 node cluster, once we allocate an instance, |
1078 |
-- we can also relocate it. |
1079 |
prop_ClusterAllocRelocate = |
1080 |
forAll (choose (4, 8)) $ \count -> |
1081 |
forAll (genOnlineNode `suchThat` (isNodeBig 4)) $ \node -> |
1082 |
forAll (arbitrary `suchThat` (isInstanceSmallerThanNode node)) $ \inst -> |
1083 |
case genClusterAlloc count node inst of |
1084 |
Types.Bad msg -> failTest msg |
1085 |
Types.Ok (nl, il, inst') -> |
1086 |
case IAlloc.processRelocate defGroupList nl il |
1087 |
(Instance.idx inst) 1 [Instance.sNode inst'] of |
1088 |
Types.Ok _ -> printTestCase "??" True -- huh, how to make |
1089 |
-- this nicer... |
1090 |
Types.Bad msg -> failTest $ "Failed to relocate: " ++ msg |
1091 |
|
1092 |
-- | Helper property checker for the result of a nodeEvac or |
1093 |
-- changeGroup operation. |
1094 |
check_EvacMode grp inst result = |
1095 |
case result of |
1096 |
Types.Bad msg -> failTest $ "Couldn't evacuate/change group:" ++ msg |
1097 |
Types.Ok (_, _, es) -> |
1098 |
let moved = Cluster.esMoved es |
1099 |
failed = Cluster.esFailed es |
1100 |
opcodes = not . null $ Cluster.esOpCodes es |
1101 |
in failmsg ("'failed' not empty: " ++ show failed) (null failed) .&&. |
1102 |
failmsg "'opcodes' is null" opcodes .&&. |
1103 |
case moved of |
1104 |
[(idx', gdx, _)] -> failmsg "invalid instance moved" (idx == idx') |
1105 |
.&&. |
1106 |
failmsg "wrong target group" |
1107 |
(gdx == Group.idx grp) |
1108 |
v -> failmsg ("invalid solution: " ++ show v) False |
1109 |
where failmsg = \msg -> printTestCase ("Failed to evacuate: " ++ msg) |
1110 |
idx = Instance.idx inst |
1111 |
|
1112 |
-- | Checks that on a 4-8 node cluster, once we allocate an instance, |
1113 |
-- we can also node-evacuate it. |
1114 |
prop_ClusterAllocEvacuate = |
1115 |
forAll (choose (4, 8)) $ \count -> |
1116 |
forAll (genOnlineNode `suchThat` (isNodeBig 4)) $ \node -> |
1117 |
forAll (arbitrary `suchThat` (isInstanceSmallerThanNode node)) $ \inst -> |
1118 |
case genClusterAlloc count node inst of |
1119 |
Types.Bad msg -> failTest msg |
1120 |
Types.Ok (nl, il, inst') -> |
1121 |
conjoin $ map (\mode -> check_EvacMode defGroup inst' $ |
1122 |
Cluster.tryNodeEvac defGroupList nl il mode |
1123 |
[Instance.idx inst']) [minBound..maxBound] |
1124 |
|
1125 |
-- | Checks that on a 4-8 node cluster with two node groups, once we |
1126 |
-- allocate an instance on the first node group, we can also change |
1127 |
-- its group. |
1128 |
prop_ClusterAllocChangeGroup = |
1129 |
forAll (choose (4, 8)) $ \count -> |
1130 |
forAll (genOnlineNode `suchThat` (isNodeBig 4)) $ \node -> |
1131 |
forAll (arbitrary `suchThat` (isInstanceSmallerThanNode node)) $ \inst -> |
1132 |
case genClusterAlloc count node inst of |
1133 |
Types.Bad msg -> failTest msg |
1134 |
Types.Ok (nl, il, inst') -> |
1135 |
-- we need to add a second node group and nodes to the cluster |
1136 |
let nl2 = Container.elems $ makeSmallCluster node count |
1137 |
grp2 = Group.setIdx defGroup (Group.idx defGroup + 1) |
1138 |
maxndx = maximum . map Node.idx $ nl2 |
1139 |
nl3 = map (\n -> n { Node.group = Group.idx grp2 |
1140 |
, Node.idx = Node.idx n + maxndx }) nl2 |
1141 |
nl4 = Container.fromList . map (\n -> (Node.idx n, n)) $ nl3 |
1142 |
gl' = Container.add (Group.idx grp2) grp2 defGroupList |
1143 |
nl' = IntMap.union nl nl4 |
1144 |
in check_EvacMode grp2 inst' $ |
1145 |
Cluster.tryChangeGroup gl' nl' il [] [Instance.idx inst'] |
1146 |
|
1147 |
-- | Check that allocating multiple instances on a cluster, then |
1148 |
-- adding an empty node, results in a valid rebalance. |
1149 |
prop_ClusterAllocBalance = |
1150 |
forAll (genNode (Just 5) (Just 128)) $ \node -> |
1151 |
forAll (choose (3, 5)) $ \count -> |
1152 |
not (Node.offline node) && not (Node.failN1 node) ==> |
1153 |
let nl = makeSmallCluster node count |
1154 |
(hnode, nl') = IntMap.deleteFindMax nl |
1155 |
il = Container.empty |
1156 |
allocnodes = Cluster.genAllocNodes defGroupList nl' 2 True |
1157 |
i_templ = createInstance Types.unitMem Types.unitDsk Types.unitCpu |
1158 |
in case allocnodes >>= \allocnodes' -> |
1159 |
Cluster.iterateAlloc nl' il (Just 5) i_templ allocnodes' [] [] of |
1160 |
Types.Bad msg -> failTest $ "Failed to allocate: " ++ msg |
1161 |
Types.Ok (_, _, _, [], _) -> failTest "Failed to allocate: no instances" |
1162 |
Types.Ok (_, xnl, il', _, _) -> |
1163 |
let ynl = Container.add (Node.idx hnode) hnode xnl |
1164 |
cv = Cluster.compCV ynl |
1165 |
tbl = Cluster.Table ynl il' cv [] |
1166 |
in printTestCase "Failed to rebalance" $ |
1167 |
canBalance tbl True True False |
1168 |
|
1169 |
-- | Checks consistency. |
1170 |
prop_ClusterCheckConsistency node inst = |
1171 |
let nl = makeSmallCluster node 3 |
1172 |
[node1, node2, node3] = Container.elems nl |
1173 |
node3' = node3 { Node.group = 1 } |
1174 |
nl' = Container.add (Node.idx node3') node3' nl |
1175 |
inst1 = Instance.setBoth inst (Node.idx node1) (Node.idx node2) |
1176 |
inst2 = Instance.setBoth inst (Node.idx node1) Node.noSecondary |
1177 |
inst3 = Instance.setBoth inst (Node.idx node1) (Node.idx node3) |
1178 |
ccheck = Cluster.findSplitInstances nl' . Container.fromList |
1179 |
in null (ccheck [(0, inst1)]) && |
1180 |
null (ccheck [(0, inst2)]) && |
1181 |
(not . null $ ccheck [(0, inst3)]) |
1182 |
|
1183 |
-- | For now, we only test that we don't lose instances during the split. |
1184 |
prop_ClusterSplitCluster node inst = |
1185 |
forAll (choose (0, 100)) $ \icnt -> |
1186 |
let nl = makeSmallCluster node 2 |
1187 |
(nl', il') = foldl (\(ns, is) _ -> assignInstance ns is inst 0 1) |
1188 |
(nl, Container.empty) [1..icnt] |
1189 |
gni = Cluster.splitCluster nl' il' |
1190 |
in sum (map (Container.size . snd . snd) gni) == icnt && |
1191 |
all (\(guuid, (nl'', _)) -> all ((== guuid) . Node.group) |
1192 |
(Container.elems nl'')) gni |
1193 |
|
1194 |
-- | Helper function to check if we can allocate an instance on a |
1195 |
-- given node list. |
1196 |
canAllocOn :: Node.List -> Int -> Instance.Instance -> Bool |
1197 |
canAllocOn nl reqnodes inst = |
1198 |
case Cluster.genAllocNodes defGroupList nl reqnodes True >>= |
1199 |
Cluster.tryAlloc nl (Container.empty) inst of |
1200 |
Types.Bad _ -> False |
1201 |
Types.Ok as -> |
1202 |
case Cluster.asSolution as of |
1203 |
Nothing -> False |
1204 |
Just _ -> True |
1205 |
|
1206 |
-- | Checks that allocation obeys minimum and maximum instance |
1207 |
-- policies. The unittest generates a random node, duplicates it count |
1208 |
-- times, and generates a random instance that can be allocated on |
1209 |
-- this mini-cluster; it then checks that after applying a policy that |
1210 |
-- the instance doesn't fits, the allocation fails. |
1211 |
prop_ClusterAllocPolicy node = |
1212 |
-- rqn is the required nodes (1 or 2) |
1213 |
forAll (choose (1, 2)) $ \rqn -> |
1214 |
forAll (choose (5, 20)) $ \count -> |
1215 |
forAll (arbitrary `suchThat` (canAllocOn (makeSmallCluster node count) rqn)) |
1216 |
$ \inst -> |
1217 |
forAll (arbitrary `suchThat` (isFailure . |
1218 |
Instance.instMatchesPolicy inst)) $ \ipol -> |
1219 |
let node' = Node.setPolicy ipol node |
1220 |
nl = makeSmallCluster node' count |
1221 |
in not $ canAllocOn nl rqn inst |
1222 |
|
1223 |
testSuite "Cluster" |
1224 |
[ 'prop_Score_Zero |
1225 |
, 'prop_CStats_sane |
1226 |
, 'prop_ClusterAlloc_sane |
1227 |
, 'prop_ClusterCanTieredAlloc |
1228 |
, 'prop_ClusterAllocRelocate |
1229 |
, 'prop_ClusterAllocEvacuate |
1230 |
, 'prop_ClusterAllocChangeGroup |
1231 |
, 'prop_ClusterAllocBalance |
1232 |
, 'prop_ClusterCheckConsistency |
1233 |
, 'prop_ClusterSplitCluster |
1234 |
, 'prop_ClusterAllocPolicy |
1235 |
] |
1236 |
|
1237 |
-- ** OpCodes tests |
1238 |
|
1239 |
-- | Check that opcode serialization is idempotent. |
1240 |
prop_OpCodes_serialization op = |
1241 |
case J.readJSON (J.showJSON op) of |
1242 |
J.Error e -> failTest $ "Cannot deserialise: " ++ e |
1243 |
J.Ok op' -> op ==? op' |
1244 |
where _types = op::OpCodes.OpCode |
1245 |
|
1246 |
testSuite "OpCodes" |
1247 |
[ 'prop_OpCodes_serialization ] |
1248 |
|
1249 |
-- ** Jobs tests |
1250 |
|
1251 |
-- | Check that (queued) job\/opcode status serialization is idempotent. |
1252 |
prop_OpStatus_serialization os = |
1253 |
case J.readJSON (J.showJSON os) of |
1254 |
J.Error e -> failTest $ "Cannot deserialise: " ++ e |
1255 |
J.Ok os' -> os ==? os' |
1256 |
where _types = os::Jobs.OpStatus |
1257 |
|
1258 |
prop_JobStatus_serialization js = |
1259 |
case J.readJSON (J.showJSON js) of |
1260 |
J.Error e -> failTest $ "Cannot deserialise: " ++ e |
1261 |
J.Ok js' -> js ==? js' |
1262 |
where _types = js::Jobs.JobStatus |
1263 |
|
1264 |
testSuite "Jobs" |
1265 |
[ 'prop_OpStatus_serialization |
1266 |
, 'prop_JobStatus_serialization |
1267 |
] |
1268 |
|
1269 |
-- ** Loader tests |
1270 |
|
1271 |
prop_Loader_lookupNode ktn inst node = |
1272 |
Loader.lookupNode nl inst node ==? Data.Map.lookup node nl |
1273 |
where nl = Data.Map.fromList ktn |
1274 |
|
1275 |
prop_Loader_lookupInstance kti inst = |
1276 |
Loader.lookupInstance il inst ==? Data.Map.lookup inst il |
1277 |
where il = Data.Map.fromList kti |
1278 |
|
1279 |
prop_Loader_assignIndices nodes = |
1280 |
Data.Map.size nassoc == length nodes && |
1281 |
Container.size kt == length nodes && |
1282 |
(if not (null nodes) |
1283 |
then maximum (IntMap.keys kt) == length nodes - 1 |
1284 |
else True) |
1285 |
where (nassoc, kt) = |
1286 |
Loader.assignIndices (map (\n -> (Node.name n, n)) nodes) |
1287 |
|
1288 |
-- | Checks that the number of primary instances recorded on the nodes |
1289 |
-- is zero. |
1290 |
prop_Loader_mergeData ns = |
1291 |
let na = Container.fromList $ map (\n -> (Node.idx n, n)) ns |
1292 |
in case Loader.mergeData [] [] [] [] |
1293 |
(Loader.emptyCluster {Loader.cdNodes = na}) of |
1294 |
Types.Bad _ -> False |
1295 |
Types.Ok (Loader.ClusterData _ nl il _ _) -> |
1296 |
let nodes = Container.elems nl |
1297 |
instances = Container.elems il |
1298 |
in (sum . map (length . Node.pList)) nodes == 0 && |
1299 |
null instances |
1300 |
|
1301 |
-- | Check that compareNameComponent on equal strings works. |
1302 |
prop_Loader_compareNameComponent_equal :: String -> Bool |
1303 |
prop_Loader_compareNameComponent_equal s = |
1304 |
Loader.compareNameComponent s s == |
1305 |
Loader.LookupResult Loader.ExactMatch s |
1306 |
|
1307 |
-- | Check that compareNameComponent on prefix strings works. |
1308 |
prop_Loader_compareNameComponent_prefix :: NonEmptyList Char -> String -> Bool |
1309 |
prop_Loader_compareNameComponent_prefix (NonEmpty s1) s2 = |
1310 |
Loader.compareNameComponent (s1 ++ "." ++ s2) s1 == |
1311 |
Loader.LookupResult Loader.PartialMatch s1 |
1312 |
|
1313 |
testSuite "Loader" |
1314 |
[ 'prop_Loader_lookupNode |
1315 |
, 'prop_Loader_lookupInstance |
1316 |
, 'prop_Loader_assignIndices |
1317 |
, 'prop_Loader_mergeData |
1318 |
, 'prop_Loader_compareNameComponent_equal |
1319 |
, 'prop_Loader_compareNameComponent_prefix |
1320 |
] |
1321 |
|
1322 |
-- ** Types tests |
1323 |
|
1324 |
prop_Types_AllocPolicy_serialisation apol = |
1325 |
case J.readJSON (J.showJSON apol) of |
1326 |
J.Ok p -> p ==? apol |
1327 |
J.Error s -> failTest $ "Failed to deserialise: " ++ s |
1328 |
where _types = apol::Types.AllocPolicy |
1329 |
|
1330 |
prop_Types_DiskTemplate_serialisation dt = |
1331 |
case J.readJSON (J.showJSON dt) of |
1332 |
J.Ok p -> p ==? dt |
1333 |
J.Error s -> failTest $ "Failed to deserialise: " ++ s |
1334 |
where _types = dt::Types.DiskTemplate |
1335 |
|
1336 |
prop_Types_ISpec_serialisation ispec = |
1337 |
case J.readJSON (J.showJSON ispec) of |
1338 |
J.Ok p -> p ==? ispec |
1339 |
J.Error s -> failTest $ "Failed to deserialise: " ++ s |
1340 |
where _types = ispec::Types.ISpec |
1341 |
|
1342 |
prop_Types_IPolicy_serialisation ipol = |
1343 |
case J.readJSON (J.showJSON ipol) of |
1344 |
J.Ok p -> p ==? ipol |
1345 |
J.Error s -> failTest $ "Failed to deserialise: " ++ s |
1346 |
where _types = ipol::Types.IPolicy |
1347 |
|
1348 |
prop_Types_EvacMode_serialisation em = |
1349 |
case J.readJSON (J.showJSON em) of |
1350 |
J.Ok p -> p ==? em |
1351 |
J.Error s -> failTest $ "Failed to deserialise: " ++ s |
1352 |
where _types = em::Types.EvacMode |
1353 |
|
1354 |
prop_Types_opToResult op = |
1355 |
case op of |
1356 |
Types.OpFail _ -> Types.isBad r |
1357 |
Types.OpGood v -> case r of |
1358 |
Types.Bad _ -> False |
1359 |
Types.Ok v' -> v == v' |
1360 |
where r = Types.opToResult op |
1361 |
_types = op::Types.OpResult Int |
1362 |
|
1363 |
prop_Types_eitherToResult ei = |
1364 |
case ei of |
1365 |
Left _ -> Types.isBad r |
1366 |
Right v -> case r of |
1367 |
Types.Bad _ -> False |
1368 |
Types.Ok v' -> v == v' |
1369 |
where r = Types.eitherToResult ei |
1370 |
_types = ei::Either String Int |
1371 |
|
1372 |
testSuite "Types" |
1373 |
[ 'prop_Types_AllocPolicy_serialisation |
1374 |
, 'prop_Types_DiskTemplate_serialisation |
1375 |
, 'prop_Types_ISpec_serialisation |
1376 |
, 'prop_Types_IPolicy_serialisation |
1377 |
, 'prop_Types_EvacMode_serialisation |
1378 |
, 'prop_Types_opToResult |
1379 |
, 'prop_Types_eitherToResult |
1380 |
] |