## root / htools / Ganeti / HTools / QC.hs @ efe98965

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{-| Unittests for ganeti-htools. |
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-} |

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{- |

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

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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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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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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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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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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.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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run :: Testable prop => prop -> Args -> IO Result |

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run = flip quickCheckWithResult |

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-- * Constants |

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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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-- | Maximum disk (8TiB, somewhat random value). |

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maxDsk :: Int |

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maxDsk = 1024 * 1024 * 8 |

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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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defGroup :: Group.Group |

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defGroup = flip Group.setIdx 0 $ |

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Group.create "default" Utils.defaultGroupID |

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Types.AllocPreferred |

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defGroupList :: Group.List |

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defGroupList = Container.fromList [(Group.idx defGroup, defGroup)] |

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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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-- * Helper functions |

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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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-- | 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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-- | 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 "running" [] True (-1) (-1) |

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Types.DTDrbd8 |

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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 fn = Node.buildPeers node Container.empty |

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namelst = map (\n -> (Node.name n, n)) (replicate count fn) |

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(_, nlst) = Loader.assignIndices namelst |

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in nlst |

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-- | Checks if a node is "big" enough. |

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isNodeBig :: Node.Node -> Int -> Bool |

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isNodeBig node size = 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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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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-- | 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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-- * Arbitrary instances |

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-- | Defines a DNS name. |

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newtype DNSChar = DNSChar { dnsGetChar::Char } |

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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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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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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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-- 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 <- elements [ C.inststErrorup |

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, C.inststErrordown |

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, C.inststAdmindown |

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, C.inststNodedown |

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, C.inststNodeoffline |

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, C.inststRunning |

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, "no_such_status1" |

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, "no_such_status2"] |

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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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-- | 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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return $ Node.buildPeers n Container.empty |

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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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-- replace disks |

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instance Arbitrary OpCodes.ReplaceDisksMode where |

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arbitrary = elements [ OpCodes.ReplaceOnPrimary |

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, OpCodes.ReplaceOnSecondary |

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, OpCodes.ReplaceNewSecondary |

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, OpCodes.ReplaceAuto |

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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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liftM2 OpCodes.OpInstanceFailover arbitrary arbitrary |

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"OP_INSTANCE_MIGRATE" -> |

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liftM4 OpCodes.OpInstanceMigrate arbitrary arbitrary arbitrary |

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arbitrary |

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_ -> fail "Wrong opcode") |

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instance Arbitrary Jobs.OpStatus where |

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arbitrary = elements [minBound..maxBound] |

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instance Arbitrary Jobs.JobStatus where |

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arbitrary = elements [minBound..maxBound] |

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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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instance Arbitrary Types.AllocPolicy where |

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arbitrary = elements [minBound..maxBound] |

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instance Arbitrary Types.DiskTemplate where |

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arbitrary = elements [minBound..maxBound] |

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-- * Actual tests |

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-- ** Utils tests |

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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 (not . elem ',') l )) $ \lst -> |

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Utils.sepSplit ',' (Utils.commaJoin lst) == lst |

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-- | Split and join should always be idempotent. |

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prop_Utils_commaSplitJoin s = Utils.commaJoin (Utils.sepSplit ',' s) == s |

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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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Utils.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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Utils.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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-- | Test that functional if' behaves like the syntactic sugar if. |

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prop_Utils_if'if :: Bool -> Int -> Int -> Bool |

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prop_Utils_if'if cnd a b = Utils.if' cnd a b == if cnd then a else b |

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-- | Test select |

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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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-> Bool -- ^ Try undef result (if a true value exists) |

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-> Bool -- ^ Try undef true value (if a true value exists) |

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-> Bool -- ^ Try undef false value (if a true value exists) |

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-> Bool -- ^ Test result |

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prop_Utils_select di lst1 lst2 rundefd rundeft rundeff = |

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Utils.select def cndlist == expectedresult |

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where has_nondef_result = not (null lst2) |

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try_undefd = has_nondef_result && rundefd |

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try_undeft = has_nondef_result && rundeft |

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try_undeff = has_nondef_result && rundeff |

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def = Utils.if' try_undefd undefined di |

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utl = Utils.if' try_undeft [(True, undefined)] [] |

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ufl = Utils.if' try_undeff [(False, undefined)] [] |

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expectedresult = Utils.if' has_nondef_result (head lst2) def |

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flist = map (\e -> (False, e)) lst1 |

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tlist = map (\e -> (True, e)) lst2 |

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cndlist = flist ++ tlist ++ utl ++ ufl |

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-- | Test list for the Utils module. |

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testUtils = |

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[ run prop_Utils_commaJoinSplit |

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, run prop_Utils_commaSplitJoin |

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, run prop_Utils_fromObjWithDefault |

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, run prop_Utils_if'if |

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, run prop_Utils_select |

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] |

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-- ** PeerMap tests |

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-- | Make sure add is idempotent. |

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prop_PeerMap_addIdempotent pmap key em = |

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fn puniq == fn (fn puniq) |

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where _types = (pmap::PeerMap.PeerMap, |

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key::PeerMap.Key, em::PeerMap.Elem) |

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fn = PeerMap.add key em |

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puniq = PeerMap.accumArray const pmap |

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-- | Make sure remove is idempotent. |

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prop_PeerMap_removeIdempotent pmap key = |

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fn puniq == fn (fn puniq) |

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where _types = (pmap::PeerMap.PeerMap, key::PeerMap.Key) |

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fn = PeerMap.remove key |

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puniq = PeerMap.accumArray const pmap |

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-- | Make sure a missing item returns 0. |

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prop_PeerMap_findMissing pmap key = |

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PeerMap.find key (PeerMap.remove key puniq) == 0 |

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where _types = (pmap::PeerMap.PeerMap, key::PeerMap.Key) |

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puniq = PeerMap.accumArray const pmap |

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-- | Make sure an added item is found. |

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prop_PeerMap_addFind pmap key em = |

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PeerMap.find key (PeerMap.add key em puniq) == em |

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where _types = (pmap::PeerMap.PeerMap, |

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key::PeerMap.Key, em::PeerMap.Elem) |

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puniq = PeerMap.accumArray const pmap |

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-- | Manual check that maxElem returns the maximum indeed, or 0 for null. |

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prop_PeerMap_maxElem pmap = |

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PeerMap.maxElem puniq == if null puniq then 0 |

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else (maximum . snd . unzip) puniq |

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where _types = pmap::PeerMap.PeerMap |

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puniq = PeerMap.accumArray const pmap |

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-- | List of tests for the PeerMap module. |

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testPeerMap = |

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[ run prop_PeerMap_addIdempotent |

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, run prop_PeerMap_removeIdempotent |

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, run prop_PeerMap_maxElem |

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, run prop_PeerMap_addFind |

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, run prop_PeerMap_findMissing |

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] |

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-- ** Container tests |

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prop_Container_addTwo cdata i1 i2 = |

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fn i1 i2 cont == fn i2 i1 cont && |

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fn i1 i2 cont == fn i1 i2 (fn i1 i2 cont) |

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where _types = (cdata::[Int], |

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i1::Int, i2::Int) |

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cont = foldl (\c x -> Container.add x x c) Container.empty cdata |

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fn x1 x2 = Container.addTwo x1 x1 x2 x2 |

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prop_Container_nameOf node = |

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let nl = makeSmallCluster node 1 |

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fnode = head (Container.elems nl) |

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in Container.nameOf nl (Node.idx fnode) == Node.name fnode |

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-- | We test that in a cluster, given a random node, we can find it by |

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-- its name and alias, as long as all names and aliases are unique, |

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-- and that we fail to find a non-existing name. |

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prop_Container_findByName node othername = |

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forAll (choose (1, 20)) $ \ cnt -> |

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forAll (choose (0, cnt - 1)) $ \ fidx -> |

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forAll (vector cnt) $ \ names -> |

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(length . nub) (map fst names ++ map snd names) == |

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length names * 2 && |

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not (othername `elem` (map fst names ++ map snd names)) ==> |

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let nl = makeSmallCluster node cnt |

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nodes = Container.elems nl |

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nodes' = map (\((name, alias), nn) -> (Node.idx nn, |

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nn { Node.name = name, |

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Node.alias = alias })) |

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$ zip names nodes |

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nl' = Container.fromList nodes' |

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target = snd (nodes' !! fidx) |

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in Container.findByName nl' (Node.name target) == Just target && |

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Container.findByName nl' (Node.alias target) == Just target && |

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Container.findByName nl' othername == Nothing |

418 | |

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testContainer = |

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[ run prop_Container_addTwo |

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, run prop_Container_nameOf |

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, run prop_Container_findByName |

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] |

424 | |

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-- ** Instance tests |

426 | |

427 |
-- Simple instance tests, we only have setter/getters |

428 | |

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prop_Instance_creat inst = |

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Instance.name inst == Instance.alias inst |

431 | |

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prop_Instance_setIdx inst idx = |

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Instance.idx (Instance.setIdx inst idx) == idx |

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where _types = (inst::Instance.Instance, idx::Types.Idx) |

435 | |

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prop_Instance_setName inst name = |

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Instance.name newinst == name && |

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Instance.alias newinst == name |

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where _types = (inst::Instance.Instance, name::String) |

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newinst = Instance.setName inst name |

441 | |

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prop_Instance_setAlias inst name = |

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Instance.name newinst == Instance.name inst && |

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Instance.alias newinst == name |

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where _types = (inst::Instance.Instance, name::String) |

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newinst = Instance.setAlias inst name |

447 | |

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prop_Instance_setPri inst pdx = |

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Instance.pNode (Instance.setPri inst pdx) == pdx |

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where _types = (inst::Instance.Instance, pdx::Types.Ndx) |

451 | |

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prop_Instance_setSec inst sdx = |

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Instance.sNode (Instance.setSec inst sdx) == sdx |

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where _types = (inst::Instance.Instance, sdx::Types.Ndx) |

455 | |

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prop_Instance_setBoth inst pdx sdx = |

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Instance.pNode si == pdx && Instance.sNode si == sdx |

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where _types = (inst::Instance.Instance, pdx::Types.Ndx, sdx::Types.Ndx) |

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si = Instance.setBoth inst pdx sdx |

460 | |

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prop_Instance_runStatus_True = |

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forAll (arbitrary `suchThat` |

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((`elem` Instance.runningStates) . Instance.runSt)) |

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Instance.running |

465 | |

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prop_Instance_runStatus_False inst = |

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let run_st = Instance.running inst |

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run_tx = Instance.runSt inst |

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in |

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run_tx `notElem` Instance.runningStates ==> not run_st |

471 | |

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prop_Instance_shrinkMG inst = |

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Instance.mem inst >= 2 * Types.unitMem ==> |

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case Instance.shrinkByType inst Types.FailMem of |

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Types.Ok inst' -> |

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Instance.mem inst' == Instance.mem inst - Types.unitMem |

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_ -> False |

478 | |

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prop_Instance_shrinkMF inst = |

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forAll (choose (0, 2 * Types.unitMem - 1)) $ \mem -> |

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let inst' = inst { Instance.mem = mem} |

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in Types.isBad $ Instance.shrinkByType inst' Types.FailMem |

483 | |

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prop_Instance_shrinkCG inst = |

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Instance.vcpus inst >= 2 * Types.unitCpu ==> |

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case Instance.shrinkByType inst Types.FailCPU of |

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Types.Ok inst' -> |

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Instance.vcpus inst' == Instance.vcpus inst - Types.unitCpu |

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_ -> False |

490 | |

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prop_Instance_shrinkCF inst = |

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forAll (choose (0, 2 * Types.unitCpu - 1)) $ \vcpus -> |

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let inst' = inst { Instance.vcpus = vcpus } |

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in Types.isBad $ Instance.shrinkByType inst' Types.FailCPU |

495 | |

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prop_Instance_shrinkDG inst = |

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Instance.dsk inst >= 2 * Types.unitDsk ==> |

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case Instance.shrinkByType inst Types.FailDisk of |

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Types.Ok inst' -> |

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Instance.dsk inst' == Instance.dsk inst - Types.unitDsk |

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_ -> False |

502 | |

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prop_Instance_shrinkDF inst = |

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forAll (choose (0, 2 * Types.unitDsk - 1)) $ \dsk -> |

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let inst' = inst { Instance.dsk = dsk } |

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in Types.isBad $ Instance.shrinkByType inst' Types.FailDisk |

507 | |

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prop_Instance_setMovable inst m = |

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Instance.movable inst' == m |

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where inst' = Instance.setMovable inst m |

511 | |

512 |
testInstance = |

513 |
[ run prop_Instance_creat |

514 |
, run prop_Instance_setIdx |

515 |
, run prop_Instance_setName |

516 |
, run prop_Instance_setAlias |

517 |
, run prop_Instance_setPri |

518 |
, run prop_Instance_setSec |

519 |
, run prop_Instance_setBoth |

520 |
, run prop_Instance_runStatus_True |

521 |
, run prop_Instance_runStatus_False |

522 |
, run prop_Instance_shrinkMG |

523 |
, run prop_Instance_shrinkMF |

524 |
, run prop_Instance_shrinkCG |

525 |
, run prop_Instance_shrinkCF |

526 |
, run prop_Instance_shrinkDG |

527 |
, run prop_Instance_shrinkDF |

528 |
, run prop_Instance_setMovable |

529 |
] |

530 | |

531 |
-- ** Text backend tests |

532 | |

533 |
-- Instance text loader tests |

534 | |

535 |
prop_Text_Load_Instance name mem dsk vcpus status |

536 |
(NonEmpty pnode) snode |

537 |
(NonNegative pdx) (NonNegative sdx) autobal dt = |

538 |
pnode /= snode && pdx /= sdx ==> |

539 |
let vcpus_s = show vcpus |

540 |
dsk_s = show dsk |

541 |
mem_s = show mem |

542 |
ndx = if null snode |

543 |
then [(pnode, pdx)] |

544 |
else [(pnode, pdx), (snode, sdx)] |

545 |
nl = Data.Map.fromList ndx |

546 |
tags = "" |

547 |
sbal = if autobal then "Y" else "N" |

548 |
sdt = Types.dtToString dt |

549 |
inst = Text.loadInst nl |

550 |
[name, mem_s, dsk_s, vcpus_s, status, |

551 |
sbal, pnode, snode, sdt, tags] |

552 |
fail1 = Text.loadInst nl |

553 |
[name, mem_s, dsk_s, vcpus_s, status, |

554 |
sbal, pnode, pnode, tags] |

555 |
_types = ( name::String, mem::Int, dsk::Int |

556 |
, vcpus::Int, status::String |

557 |
, snode::String |

558 |
, autobal::Bool) |

559 |
in |

560 |
case inst of |

561 |
Types.Bad msg -> printTestCase ("Failed to load instance: " ++ msg) |

562 |
False |

563 |
Types.Ok (_, i) -> printTestCase ("Mismatch in some field while\ |

564 |
\ loading the instance") $ |

565 |
Instance.name i == name && |

566 |
Instance.vcpus i == vcpus && |

567 |
Instance.mem i == mem && |

568 |
Instance.pNode i == pdx && |

569 |
Instance.sNode i == (if null snode |

570 |
then Node.noSecondary |

571 |
else sdx) && |

572 |
Instance.autoBalance i == autobal && |

573 |
Types.isBad fail1 |

574 | |

575 |
prop_Text_Load_InstanceFail ktn fields = |

576 |
length fields /= 10 ==> |

577 |
case Text.loadInst nl fields of |

578 |
Types.Ok _ -> printTestCase "Managed to load instance from invalid\ |

579 |
\ data" False |

580 |
Types.Bad msg -> printTestCase ("Unrecognised error message: " ++ msg) $ |

581 |
"Invalid/incomplete instance data: '" `isPrefixOf` msg |

582 |
where nl = Data.Map.fromList ktn |

583 | |

584 |
prop_Text_Load_Node name tm nm fm td fd tc fo = |

585 |
let conv v = if v < 0 |

586 |
then "?" |

587 |
else show v |

588 |
tm_s = conv tm |

589 |
nm_s = conv nm |

590 |
fm_s = conv fm |

591 |
td_s = conv td |

592 |
fd_s = conv fd |

593 |
tc_s = conv tc |

594 |
fo_s = if fo |

595 |
then "Y" |

596 |
else "N" |

597 |
any_broken = any (< 0) [tm, nm, fm, td, fd, tc] |

598 |
gid = Group.uuid defGroup |

599 |
in case Text.loadNode defGroupAssoc |

600 |
[name, tm_s, nm_s, fm_s, td_s, fd_s, tc_s, fo_s, gid] of |

601 |
Nothing -> False |

602 |
Just (name', node) -> |

603 |
if fo || any_broken |

604 |
then Node.offline node |

605 |
else Node.name node == name' && name' == name && |

606 |
Node.alias node == name && |

607 |
Node.tMem node == fromIntegral tm && |

608 |
Node.nMem node == nm && |

609 |
Node.fMem node == fm && |

610 |
Node.tDsk node == fromIntegral td && |

611 |
Node.fDsk node == fd && |

612 |
Node.tCpu node == fromIntegral tc |

613 | |

614 |
prop_Text_Load_NodeFail fields = |

615 |
length fields /= 8 ==> isNothing $ Text.loadNode Data.Map.empty fields |

616 | |

617 |
prop_Text_NodeLSIdempotent node = |

618 |
(Text.loadNode defGroupAssoc. |

619 |
Utils.sepSplit '|' . Text.serializeNode defGroupList) n == |

620 |
Just (Node.name n, n) |

621 |
-- override failN1 to what loadNode returns by default |

622 |
where n = node { Node.failN1 = True, Node.offline = False } |

623 | |

624 |
testText = |

625 |
[ run prop_Text_Load_Instance |

626 |
, run prop_Text_Load_InstanceFail |

627 |
, run prop_Text_Load_Node |

628 |
, run prop_Text_Load_NodeFail |

629 |
, run prop_Text_NodeLSIdempotent |

630 |
] |

631 | |

632 |
-- ** Node tests |

633 | |

634 |
prop_Node_setAlias node name = |

635 |
Node.name newnode == Node.name node && |

636 |
Node.alias newnode == name |

637 |
where _types = (node::Node.Node, name::String) |

638 |
newnode = Node.setAlias node name |

639 | |

640 |
prop_Node_setOffline node status = |

641 |
Node.offline newnode == status |

642 |
where newnode = Node.setOffline node status |

643 | |

644 |
prop_Node_setXmem node xm = |

645 |
Node.xMem newnode == xm |

646 |
where newnode = Node.setXmem node xm |

647 | |

648 |
prop_Node_setMcpu node mc = |

649 |
Node.mCpu newnode == mc |

650 |
where newnode = Node.setMcpu node mc |

651 | |

652 |
-- | Check that an instance add with too high memory or disk will be |

653 |
-- rejected. |

654 |
prop_Node_addPriFM node inst = Instance.mem inst >= Node.fMem node && |

655 |
not (Node.failN1 node) |

656 |
==> |

657 |
case Node.addPri node inst'' of |

658 |
Types.OpFail Types.FailMem -> True |

659 |
_ -> False |

660 |
where _types = (node::Node.Node, inst::Instance.Instance) |

661 |
inst' = setInstanceSmallerThanNode node inst |

662 |
inst'' = inst' { Instance.mem = Instance.mem inst } |

663 | |

664 |
prop_Node_addPriFD node inst = Instance.dsk inst >= Node.fDsk node && |

665 |
not (Node.failN1 node) |

666 |
==> |

667 |
case Node.addPri node inst'' of |

668 |
Types.OpFail Types.FailDisk -> True |

669 |
_ -> False |

670 |
where _types = (node::Node.Node, inst::Instance.Instance) |

671 |
inst' = setInstanceSmallerThanNode node inst |

672 |
inst'' = inst' { Instance.dsk = Instance.dsk inst } |

673 | |

674 |
prop_Node_addPriFC node inst (Positive extra) = |

675 |
not (Node.failN1 node) ==> |

676 |
case Node.addPri node inst'' of |

677 |
Types.OpFail Types.FailCPU -> True |

678 |
_ -> False |

679 |
where _types = (node::Node.Node, inst::Instance.Instance) |

680 |
inst' = setInstanceSmallerThanNode node inst |

681 |
inst'' = inst' { Instance.vcpus = Node.availCpu node + extra } |

682 | |

683 |
-- | Check that an instance add with too high memory or disk will be |

684 |
-- rejected. |

685 |
prop_Node_addSec node inst pdx = |

686 |
(Instance.mem inst >= (Node.fMem node - Node.rMem node) || |

687 |
Instance.dsk inst >= Node.fDsk node) && |

688 |
not (Node.failN1 node) |

689 |
==> isFailure (Node.addSec node inst pdx) |

690 |
where _types = (node::Node.Node, inst::Instance.Instance, pdx::Int) |

691 | |

692 |
-- | Checks for memory reservation changes. |

693 |
prop_Node_rMem inst = |

694 |
forAll (arbitrary `suchThat` ((> 0) . Node.fMem)) $ \node -> |

695 |
-- ab = auto_balance, nb = non-auto_balance |

696 |
-- we use -1 as the primary node of the instance |

697 |
let inst' = inst { Instance.pNode = -1, Instance.autoBalance = True } |

698 |
inst_ab = setInstanceSmallerThanNode node inst' |

699 |
inst_nb = inst_ab { Instance.autoBalance = False } |

700 |
-- now we have the two instances, identical except the |

701 |
-- autoBalance attribute |

702 |
orig_rmem = Node.rMem node |

703 |
inst_idx = Instance.idx inst_ab |

704 |
node_add_ab = Node.addSec node inst_ab (-1) |

705 |
node_add_nb = Node.addSec node inst_nb (-1) |

706 |
node_del_ab = liftM (flip Node.removeSec inst_ab) node_add_ab |

707 |
node_del_nb = liftM (flip Node.removeSec inst_nb) node_add_nb |

708 |
in case (node_add_ab, node_add_nb, node_del_ab, node_del_nb) of |

709 |
(Types.OpGood a_ab, Types.OpGood a_nb, |

710 |
Types.OpGood d_ab, Types.OpGood d_nb) -> |

711 |
printTestCase "Consistency checks failed" $ |

712 |
Node.rMem a_ab > orig_rmem && |

713 |
Node.rMem a_ab - orig_rmem == Instance.mem inst_ab && |

714 |
Node.rMem a_nb == orig_rmem && |

715 |
Node.rMem d_ab == orig_rmem && |

716 |
Node.rMem d_nb == orig_rmem && |

717 |
-- this is not related to rMem, but as good a place to |

718 |
-- test as any |

719 |
inst_idx `elem` Node.sList a_ab && |

720 |
not (inst_idx `elem` Node.sList d_ab) |

721 |
x -> printTestCase ("Failed to add/remove instances: " ++ show x) |

722 |
False |

723 | |

724 |
-- | Check mdsk setting. |

725 |
prop_Node_setMdsk node mx = |

726 |
Node.loDsk node' >= 0 && |

727 |
fromIntegral (Node.loDsk node') <= Node.tDsk node && |

728 |
Node.availDisk node' >= 0 && |

729 |
Node.availDisk node' <= Node.fDsk node' && |

730 |
fromIntegral (Node.availDisk node') <= Node.tDsk node' && |

731 |
Node.mDsk node' == mx' |

732 |
where _types = (node::Node.Node, mx::SmallRatio) |

733 |
node' = Node.setMdsk node mx' |

734 |
SmallRatio mx' = mx |

735 | |

736 |
-- Check tag maps |

737 |
prop_Node_tagMaps_idempotent tags = |

738 |
Node.delTags (Node.addTags m tags) tags == m |

739 |
where m = Data.Map.empty |

740 | |

741 |
prop_Node_tagMaps_reject tags = |

742 |
not (null tags) ==> |

743 |
any (\t -> Node.rejectAddTags m [t]) tags |

744 |
where m = Node.addTags Data.Map.empty tags |

745 | |

746 |
prop_Node_showField node = |

747 |
forAll (elements Node.defaultFields) $ \ field -> |

748 |
fst (Node.showHeader field) /= Types.unknownField && |

749 |
Node.showField node field /= Types.unknownField |

750 | |

751 | |

752 |
prop_Node_computeGroups nodes = |

753 |
let ng = Node.computeGroups nodes |

754 |
onlyuuid = map fst ng |

755 |
in length nodes == sum (map (length . snd) ng) && |

756 |
all (\(guuid, ns) -> all ((== guuid) . Node.group) ns) ng && |

757 |
length (nub onlyuuid) == length onlyuuid && |

758 |
(null nodes || not (null ng)) |

759 | |

760 |
testNode = |

761 |
[ run prop_Node_setAlias |

762 |
, run prop_Node_setOffline |

763 |
, run prop_Node_setMcpu |

764 |
, run prop_Node_setXmem |

765 |
, run prop_Node_addPriFM |

766 |
, run prop_Node_addPriFD |

767 |
, run prop_Node_addPriFC |

768 |
, run prop_Node_addSec |

769 |
, run prop_Node_rMem |

770 |
, run prop_Node_setMdsk |

771 |
, run prop_Node_tagMaps_idempotent |

772 |
, run prop_Node_tagMaps_reject |

773 |
, run prop_Node_showField |

774 |
, run prop_Node_computeGroups |

775 |
] |

776 | |

777 | |

778 |
-- ** Cluster tests |

779 | |

780 |
-- | Check that the cluster score is close to zero for a homogeneous |

781 |
-- cluster. |

782 |
prop_Score_Zero node = |

783 |
forAll (choose (1, 1024)) $ \count -> |

784 |
(not (Node.offline node) && not (Node.failN1 node) && (count > 0) && |

785 |
(Node.tDsk node > 0) && (Node.tMem node > 0)) ==> |

786 |
let fn = Node.buildPeers node Container.empty |

787 |
nlst = zip [1..] $ replicate count fn::[(Types.Ndx, Node.Node)] |

788 |
nl = Container.fromList nlst |

789 |
score = Cluster.compCV nl |

790 |
-- we can't say == 0 here as the floating point errors accumulate; |

791 |
-- this should be much lower than the default score in CLI.hs |

792 |
in score <= 1e-12 |

793 | |

794 |
-- | Check that cluster stats are sane. |

795 |
prop_CStats_sane node = |

796 |
forAll (choose (1, 1024)) $ \count -> |

797 |
(not (Node.offline node) && not (Node.failN1 node) && |

798 |
(Node.availDisk node > 0) && (Node.availMem node > 0)) ==> |

799 |
let fn = Node.buildPeers node Container.empty |

800 |
nlst = zip [1..] $ replicate count fn::[(Types.Ndx, Node.Node)] |

801 |
nl = Container.fromList nlst |

802 |
cstats = Cluster.totalResources nl |

803 |
in Cluster.csAdsk cstats >= 0 && |

804 |
Cluster.csAdsk cstats <= Cluster.csFdsk cstats |

805 | |

806 |
-- | Check that one instance is allocated correctly, without |

807 |
-- rebalances needed. |

808 |
prop_ClusterAlloc_sane node inst = |

809 |
forAll (choose (5, 20)) $ \count -> |

810 |
not (Node.offline node) |

811 |
&& not (Node.failN1 node) |

812 |
&& Node.availDisk node > 0 |

813 |
&& Node.availMem node > 0 |

814 |
==> |

815 |
let nl = makeSmallCluster node count |

816 |
il = Container.empty |

817 |
inst' = setInstanceSmallerThanNode node inst |

818 |
in case Cluster.genAllocNodes defGroupList nl 2 True >>= |

819 |
Cluster.tryAlloc nl il inst' of |

820 |
Types.Bad _ -> False |

821 |
Types.Ok as -> |

822 |
case Cluster.asSolutions as of |

823 |
[] -> False |

824 |
(xnl, xi, _, cv):[] -> |

825 |
let il' = Container.add (Instance.idx xi) xi il |

826 |
tbl = Cluster.Table xnl il' cv [] |

827 |
in not (canBalance tbl True True False) |

828 |
_ -> False |

829 | |

830 |
-- | Checks that on a 2-5 node cluster, we can allocate a random |

831 |
-- instance spec via tiered allocation (whatever the original instance |

832 |
-- spec), on either one or two nodes. |

833 |
prop_ClusterCanTieredAlloc node inst = |

834 |
forAll (choose (2, 5)) $ \count -> |

835 |
forAll (choose (1, 2)) $ \rqnodes -> |

836 |
not (Node.offline node) |

837 |
&& not (Node.failN1 node) |

838 |
&& isNodeBig node 4 |

839 |
==> |

840 |
let nl = makeSmallCluster node count |

841 |
il = Container.empty |

842 |
allocnodes = Cluster.genAllocNodes defGroupList nl rqnodes True |

843 |
in case allocnodes >>= \allocnodes' -> |

844 |
Cluster.tieredAlloc nl il inst allocnodes' [] [] of |

845 |
Types.Bad _ -> False |

846 |
Types.Ok (_, _, il', ixes, cstats) -> not (null ixes) && |

847 |
IntMap.size il' == length ixes && |

848 |
length ixes == length cstats |

849 | |

850 |
-- | Checks that on a 4-8 node cluster, once we allocate an instance, |

851 |
-- we can also evacuate it. |

852 |
prop_ClusterAllocEvac node inst = |

853 |
forAll (choose (4, 8)) $ \count -> |

854 |
not (Node.offline node) |

855 |
&& not (Node.failN1 node) |

856 |
&& isNodeBig node 4 |

857 |
==> |

858 |
let nl = makeSmallCluster node count |

859 |
il = Container.empty |

860 |
inst' = setInstanceSmallerThanNode node inst |

861 |
in case Cluster.genAllocNodes defGroupList nl 2 True >>= |

862 |
Cluster.tryAlloc nl il inst' of |

863 |
Types.Bad _ -> False |

864 |
Types.Ok as -> |

865 |
case Cluster.asSolutions as of |

866 |
[] -> False |

867 |
(xnl, xi, _, _):[] -> |

868 |
let sdx = Instance.sNode xi |

869 |
il' = Container.add (Instance.idx xi) xi il |

870 |
in case Cluster.tryEvac xnl il' [Instance.idx xi] [sdx] of |

871 |
Just _ -> True |

872 |
_ -> False |

873 |
_ -> False |

874 | |

875 |
-- | Check that allocating multiple instances on a cluster, then |

876 |
-- adding an empty node, results in a valid rebalance. |

877 |
prop_ClusterAllocBalance = |

878 |
forAll (genNode (Just 5) (Just 128)) $ \node -> |

879 |
forAll (choose (3, 5)) $ \count -> |

880 |
not (Node.offline node) && not (Node.failN1 node) ==> |

881 |
let nl = makeSmallCluster node count |

882 |
(hnode, nl') = IntMap.deleteFindMax nl |

883 |
il = Container.empty |

884 |
allocnodes = Cluster.genAllocNodes defGroupList nl' 2 True |

885 |
i_templ = createInstance Types.unitMem Types.unitDsk Types.unitCpu |

886 |
in case allocnodes >>= \allocnodes' -> |

887 |
Cluster.iterateAlloc nl' il i_templ allocnodes' [] [] of |

888 |
Types.Bad _ -> False |

889 |
Types.Ok (_, xnl, il', _, _) -> |

890 |
let ynl = Container.add (Node.idx hnode) hnode xnl |

891 |
cv = Cluster.compCV ynl |

892 |
tbl = Cluster.Table ynl il' cv [] |

893 |
in canBalance tbl True True False |

894 | |

895 |
-- | Checks consistency. |

896 |
prop_ClusterCheckConsistency node inst = |

897 |
let nl = makeSmallCluster node 3 |

898 |
[node1, node2, node3] = Container.elems nl |

899 |
node3' = node3 { Node.group = 1 } |

900 |
nl' = Container.add (Node.idx node3') node3' nl |

901 |
inst1 = Instance.setBoth inst (Node.idx node1) (Node.idx node2) |

902 |
inst2 = Instance.setBoth inst (Node.idx node1) Node.noSecondary |

903 |
inst3 = Instance.setBoth inst (Node.idx node1) (Node.idx node3) |

904 |
ccheck = Cluster.findSplitInstances nl' . Container.fromList |

905 |
in null (ccheck [(0, inst1)]) && |

906 |
null (ccheck [(0, inst2)]) && |

907 |
(not . null $ ccheck [(0, inst3)]) |

908 | |

909 |
-- | For now, we only test that we don't lose instances during the split. |

910 |
prop_ClusterSplitCluster node inst = |

911 |
forAll (choose (0, 100)) $ \icnt -> |

912 |
let nl = makeSmallCluster node 2 |

913 |
(nl', il') = foldl (\(ns, is) _ -> assignInstance ns is inst 0 1) |

914 |
(nl, Container.empty) [1..icnt] |

915 |
gni = Cluster.splitCluster nl' il' |

916 |
in sum (map (Container.size . snd . snd) gni) == icnt && |

917 |
all (\(guuid, (nl'', _)) -> all ((== guuid) . Node.group) |

918 |
(Container.elems nl'')) gni |

919 | |

920 |
testCluster = |

921 |
[ run prop_Score_Zero |

922 |
, run prop_CStats_sane |

923 |
, run prop_ClusterAlloc_sane |

924 |
, run prop_ClusterCanTieredAlloc |

925 |
, run prop_ClusterAllocEvac |

926 |
, run prop_ClusterAllocBalance |

927 |
, run prop_ClusterCheckConsistency |

928 |
, run prop_ClusterSplitCluster |

929 |
] |

930 | |

931 |
-- ** OpCodes tests |

932 | |

933 |
-- | Check that opcode serialization is idempotent. |

934 |
prop_OpCodes_serialization op = |

935 |
case J.readJSON (J.showJSON op) of |

936 |
J.Error _ -> False |

937 |
J.Ok op' -> op == op' |

938 |
where _types = op::OpCodes.OpCode |

939 | |

940 |
testOpCodes = |

941 |
[ run prop_OpCodes_serialization |

942 |
] |

943 | |

944 |
-- ** Jobs tests |

945 | |

946 |
-- | Check that (queued) job\/opcode status serialization is idempotent. |

947 |
prop_OpStatus_serialization os = |

948 |
case J.readJSON (J.showJSON os) of |

949 |
J.Error _ -> False |

950 |
J.Ok os' -> os == os' |

951 |
where _types = os::Jobs.OpStatus |

952 | |

953 |
prop_JobStatus_serialization js = |

954 |
case J.readJSON (J.showJSON js) of |

955 |
J.Error _ -> False |

956 |
J.Ok js' -> js == js' |

957 |
where _types = js::Jobs.JobStatus |

958 | |

959 |
testJobs = |

960 |
[ run prop_OpStatus_serialization |

961 |
, run prop_JobStatus_serialization |

962 |
] |

963 | |

964 |
-- ** Loader tests |

965 | |

966 |
prop_Loader_lookupNode ktn inst node = |

967 |
Loader.lookupNode nl inst node == Data.Map.lookup node nl |

968 |
where nl = Data.Map.fromList ktn |

969 | |

970 |
prop_Loader_lookupInstance kti inst = |

971 |
Loader.lookupInstance il inst == Data.Map.lookup inst il |

972 |
where il = Data.Map.fromList kti |

973 | |

974 |
prop_Loader_assignIndices nodes = |

975 |
Data.Map.size nassoc == length nodes && |

976 |
Container.size kt == length nodes && |

977 |
(if not (null nodes) |

978 |
then maximum (IntMap.keys kt) == length nodes - 1 |

979 |
else True) |

980 |
where (nassoc, kt) = Loader.assignIndices (map (\n -> (Node.name n, n)) nodes) |

981 | |

982 |
-- | Checks that the number of primary instances recorded on the nodes |

983 |
-- is zero. |

984 |
prop_Loader_mergeData ns = |

985 |
let na = Container.fromList $ map (\n -> (Node.idx n, n)) ns |

986 |
in case Loader.mergeData [] [] [] [] |

987 |
(Loader.emptyCluster {Loader.cdNodes = na}) of |

988 |
Types.Bad _ -> False |

989 |
Types.Ok (Loader.ClusterData _ nl il _) -> |

990 |
let nodes = Container.elems nl |

991 |
instances = Container.elems il |

992 |
in (sum . map (length . Node.pList)) nodes == 0 && |

993 |
null instances |

994 | |

995 |
-- | Check that compareNameComponent on equal strings works. |

996 |
prop_Loader_compareNameComponent_equal :: String -> Bool |

997 |
prop_Loader_compareNameComponent_equal s = |

998 |
Loader.compareNameComponent s s == |

999 |
Loader.LookupResult Loader.ExactMatch s |

1000 | |

1001 |
-- | Check that compareNameComponent on prefix strings works. |

1002 |
prop_Loader_compareNameComponent_prefix :: NonEmptyList Char -> String -> Bool |

1003 |
prop_Loader_compareNameComponent_prefix (NonEmpty s1) s2 = |

1004 |
Loader.compareNameComponent (s1 ++ "." ++ s2) s1 == |

1005 |
Loader.LookupResult Loader.PartialMatch s1 |

1006 | |

1007 |
testLoader = |

1008 |
[ run prop_Loader_lookupNode |

1009 |
, run prop_Loader_lookupInstance |

1010 |
, run prop_Loader_assignIndices |

1011 |
, run prop_Loader_mergeData |

1012 |
, run prop_Loader_compareNameComponent_equal |

1013 |
, run prop_Loader_compareNameComponent_prefix |

1014 |
] |

1015 | |

1016 |
-- ** Types tests |

1017 | |

1018 |
prop_AllocPolicy_serialisation apol = |

1019 |
case Types.apolFromString (Types.apolToString apol) of |

1020 |
Types.Ok p -> printTestCase ("invalid deserialisation " ++ show p) $ |

1021 |
p == apol |

1022 |
Types.Bad s -> printTestCase ("failed to deserialise: " ++ s) False |

1023 | |

1024 |
prop_DiskTemplate_serialisation dt = |

1025 |
case Types.dtFromString (Types.dtToString dt) of |

1026 |
Types.Ok p -> printTestCase ("invalid deserialisation " ++ show p) $ |

1027 |
p == dt |

1028 |
Types.Bad s -> printTestCase ("failed to deserialise: " ++ s) False |

1029 | |

1030 |
testTypes = |

1031 |
[ run prop_AllocPolicy_serialisation |

1032 |
, run prop_DiskTemplate_serialisation |

1033 |
] |