## root / Ganeti / HTools / QC.hs @ 18b6444b

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

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{- |

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Copyright (C) 2009 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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( test_PeerMap |

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, test_Container |

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, test_Instance |

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, test_Node |

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) where |

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import Test.QuickCheck |

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import Test.QuickCheck.Batch |

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import Data.Maybe |

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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.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.Node as Node |

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import qualified Ganeti.HTools.PeerMap as PeerMap |

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import qualified Ganeti.HTools.Rapi as Rapi |

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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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-- copied from the introduction to quickcheck |

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instance Arbitrary Char where |

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arbitrary = choose ('\32', '\128') |

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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 <- arbitrary |

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mem <- choose(0, 100) |

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dsk <- choose(0, 100) |

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run_st <- arbitrary |

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pn <- arbitrary |

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sn <- arbitrary |

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return $ Instance.create name mem dsk run_st pn sn |

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-- and a random node |

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instance Arbitrary Node.Node where |

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arbitrary = do |

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name <- arbitrary |

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mem_t <- arbitrary |

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mem_f <- choose (0, mem_t) |

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mem_n <- choose (0, mem_t - mem_f) |

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dsk_t <- arbitrary |

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dsk_f <- choose (0, dsk_t) |

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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 offl |

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n' = Node.buildPeers n Container.empty |

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return n' |

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-- | Make sure add is idempotent |

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prop_PeerMap_addIdempotent pmap key elem = |

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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, elem::PeerMap.Elem) |

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fn = PeerMap.add key elem |

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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 elem = |

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

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

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key::PeerMap.Key, elem::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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test_PeerMap = |

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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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test_Container = |

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[ run prop_Container_addTwo ] |

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

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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) |

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prop_Instance_setName inst name = |

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Instance.name (Instance.setName inst name) == name |

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

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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) |

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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) |

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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 |

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test_Instance = |

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[ run prop_Instance_setIdx |

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, run prop_Instance_setName |

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, run prop_Instance_setPri |

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, run prop_Instance_setSec |

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, run prop_Instance_setBoth |

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] |

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-- Node tests |

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

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prop_Node_addPri node inst = (Instance.mem inst >= Node.f_mem node || |

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Instance.dsk inst >= Node.f_dsk node) && |

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(not $ Node.failN1 node) |

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==> |

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isNothing(Node.addPri node inst) |

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

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

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prop_Node_addSec node inst pdx = |

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(Instance.mem inst >= (Node.f_mem node - Node.r_mem node) || |

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Instance.dsk inst >= Node.f_dsk node) && |

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(not $ Node.failN1 node) |

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==> isNothing(Node.addSec node inst pdx) |

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

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test_Node = |

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[ run prop_Node_addPri |

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, run prop_Node_addSec |

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] |