root / htest / Test / Ganeti / HTools / Utils.hs @ 20bc5360
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{-# LANGUAGE TemplateHaskell #-} |
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{-# OPTIONS_GHC -fno-warn-orphans #-} |
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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, 2012 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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|
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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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module Test.Ganeti.HTools.Utils (testUtils) where |
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import Test.QuickCheck |
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import qualified Text.JSON as J |
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import Test.Ganeti.TestHelper |
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import Test.Ganeti.TestCommon |
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import qualified Ganeti.JSON as JSON |
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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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-- | Helper to generate a small string that doesn't contain commas. |
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genNonCommaString :: Gen [Char] |
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genNonCommaString = do |
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size <- choose (0, 20) -- arbitrary max size |
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vectorOf size (arbitrary `suchThat` ((/=) ',')) |
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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_commaJoinSplit :: Property |
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prop_commaJoinSplit = |
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forAll (choose (0, 20)) $ \llen -> |
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forAll (vectorOf llen genNonCommaString `suchThat` ((/=) [""])) $ \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_commaSplitJoin :: [Char] -> Property |
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prop_commaSplitJoin s = |
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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_fromObjWithDefault :: Integer -> String -> Bool |
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prop_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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-- | Test that functional if' behaves like the syntactic sugar if. |
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prop_if'if :: Bool -> Int -> Int -> Gen Prop |
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prop_if'if cnd a b = |
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Utils.if' cnd a b ==? if cnd then a else b |
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-- | Test basic select functionality |
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prop_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_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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-- | Test basic select functionality with undefined default |
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prop_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_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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-- | Test basic select functionality with undefined list values |
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prop_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_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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prop_parseUnit :: NonNegative Int -> Property |
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prop_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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Utils.parseUnit (show n ++ "M") ==? Types.Ok (truncate n_mb::Int) .&&. |
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Utils.parseUnit (show n ++ "g") ==? Types.Ok (n*1024) .&&. |
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Utils.parseUnit (show n ++ "G") ==? Types.Ok (truncate n_gb::Int) .&&. |
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Utils.parseUnit (show n ++ "t") ==? Types.Ok (n*1048576) .&&. |
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Utils.parseUnit (show n ++ "T") ==? Types.Ok (truncate n_tb::Int) .&&. |
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printTestCase "Internal error/overflow?" |
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(n_mb >=0 && n_gb >= 0 && n_tb >= 0) .&&. |
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property (Types.isBad (Utils.parseUnit (show n ++ "x")::Types.Result Int)) |
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where n_mb = (fromIntegral n::Rational) * 1000 * 1000 / 1024 / 1024 |
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n_gb = n_mb * 1000 |
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n_tb = n_gb * 1000 |
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-- | Test list for the Utils module. |
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testSuite "Utils" |
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[ 'prop_commaJoinSplit |
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, 'prop_commaSplitJoin |
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, 'prop_fromObjWithDefault |
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, 'prop_if'if |
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, 'prop_select |
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, 'prop_select_undefd |
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, 'prop_select_undefv |
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, 'prop_parseUnit |
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] |