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https://github.com/simplex-chat/simplexmq.git
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fe64d42db1
* smp server: split postgres support to a separate executable, to not require postgres library in the main binary * comments * enable server_postgres flag by default, add CPP option to test * refactor * change default for server_postgres to False * diff
35 lines
1.1 KiB
Haskell
35 lines
1.1 KiB
Haskell
module Util where
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import Control.Monad (replicateM, when)
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import Data.Either (partitionEithers)
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import Data.List (tails)
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import GHC.Conc (getNumCapabilities, getNumProcessors, setNumCapabilities)
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import System.Directory (doesFileExist, removeFile)
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import Test.Hspec
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import UnliftIO
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skip :: String -> SpecWith a -> SpecWith a
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skip = before_ . pendingWith
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withNumCapabilities :: Int -> IO a -> IO a
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withNumCapabilities new a = getNumCapabilities >>= \old -> bracket_ (setNumCapabilities new) (setNumCapabilities old) a
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withNCPUCapabilities :: IO a -> IO a
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withNCPUCapabilities a = getNumProcessors >>= \p -> withNumCapabilities p a
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inParrallel :: Int -> IO () -> IO ()
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inParrallel n action = do
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streams <- replicateM n $ async action
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(es, rs) <- partitionEithers <$> mapM waitCatch streams
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map show es `shouldBe` []
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length rs `shouldBe` n
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combinations :: Int -> [a] -> [[a]]
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combinations 0 _ = [[]]
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combinations k xs = [y : ys | y : xs' <- tails xs, ys <- combinations (k - 1) xs']
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removeFileIfExists :: FilePath -> IO ()
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removeFileIfExists filePath = do
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fileExists <- doesFileExist filePath
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when fileExists $ removeFile filePath
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