sydtest-process (empty) → 0.0.0.0

raw patch · 5 files changed

+115/−0 lines, 5 filesdep +basedep +bytestringdep +process

Dependencies added: base, bytestring, process, sydtest, sydtest-process

Files

• LICENSE.md +5/−0
• src/Test/Syd/Process.hs +34/−0
• sydtest-process.cabal +54/−0
• test/Spec.hs +1/−0
• test/Test/Syd/ProcessSpec.hs +21/−0

@@ -0,0 +1,5 @@+# Sydtest License++Copyright (c) 2021 Tom Sydney Kerckhove++See the Sydtest License at https://github.com/NorfairKing/sydtest/blob/master/sydtest/LICENSE.md for the full license text.

@@ -0,0 +1,34 @@+{-# LANGUAGE DataKinds #-}+{-# LANGUAGE TypeOperators #-}++module Test.Syd.Process where++import System.IO+import System.Process+import Test.Syd++-- | Run a given process while a test is running and give access to a process handle as an inner resource.+--+-- See 'processSetupFunc'.+processSpec :: CreateProcess -> TestDefM outers (Maybe Handle, Maybe Handle, Maybe Handle, ProcessHandle) result -> TestDefM outers () result+processSpec cp = setupAround $ processSetupFunc cp++-- | Run a given process while a group of tests is running and give access to a process handle as an outer resource.+--+-- See 'processSetupFunc'.+--+-- == __FOOTGUN__+--+-- The process will be shared accross multiple tests.+-- This may well be a good idea because starting the process can be prohibitively expensive to do around every test.+-- However, sharing the process means that tests could be sharing state.+-- When using this function, it is important to implement some form of cleaning the state before every test.+-- It is also important to use 'sequential' if some such state is maintained (and cleaned) so that the state is not cleaned while another test is running.+outerProcessSpec :: CreateProcess -> TestDefM ((Maybe Handle, Maybe Handle, Maybe Handle, ProcessHandle) ': outers) inner result -> TestDefM outers inner result+outerProcessSpec cp = setupAroundAll $ processSetupFunc cp++-- | Set up a process beforehand and stop it afterwards.+--+-- The process will be terminated using 'cleanupProcess'.+processSetupFunc :: CreateProcess -> SetupFunc (Maybe Handle, Maybe Handle, Maybe Handle, ProcessHandle)+processSetupFunc cp = bracketSetupFunc (createProcess cp) cleanupProcess

@@ -0,0 +1,54 @@+cabal-version: 1.12++-- This file has been generated from package.yaml by hpack version 0.34.4.+--+-- see: https://github.com/sol/hpack++name:           sydtest-process+version:        0.0.0.0+synopsis:       A typed-process companion library for sydtest+category:       Testing+homepage:       https://github.com/NorfairKing/sydtest#readme+bug-reports:    https://github.com/NorfairKing/sydtest/issues+author:         Tom Sydney Kerckhove+maintainer:     syd@cs-syd.eu+copyright:      Copyright (c) 2021 Tom Sydney Kerckhove+license:        OtherLicense+license-file:   LICENSE.md+build-type:     Simple++source-repository head+  type: git+  location: https://github.com/NorfairKing/sydtest++library+  exposed-modules:+      Test.Syd.Process+  other-modules:+      Paths_sydtest_process+  hs-source-dirs:+      src+  build-depends:+      base >=4.7 && <5+    , process+    , sydtest+  default-language: Haskell2010++test-suite sydtest-process-test+  type: exitcode-stdio-1.0+  main-is: Spec.hs+  other-modules:+      Test.Syd.ProcessSpec+      Paths_sydtest_process+  hs-source-dirs:+      test+  ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall+  build-tool-depends:+      sydtest-discover:sydtest-discover+  build-depends:+      base >=4.7 && <5+    , bytestring+    , process+    , sydtest+    , sydtest-process+  default-language: Haskell2010

@@ -0,0 +1,1 @@+{-# OPTIONS_GHC -F -pgmF sydtest-discover #-}

@@ -0,0 +1,21 @@+{-# LANGUAGE OverloadedStrings #-}+{-# OPTIONS_GHC -fno-warn-incomplete-uni-patterns #-}++module Test.Syd.ProcessSpec (spec) where++import qualified Data.ByteString as SB+import System.IO+import System.Process+import Test.Syd+import Test.Syd.Process++spec :: Spec+spec = processSpec ((proc "cat" []) {std_in = CreatePipe, std_out = CreatePipe, std_err = Inherit}) $+  it "can communicate with the process" $ \(Just inHandle, Just outHandle, _, _) -> do+    let contents = "Hello world"+    hSetBuffering inHandle NoBuffering+    hSetBuffering outHandle NoBuffering+    SB.hPut inHandle contents+    hFlush inHandle+    output <- SB.hGet outHandle (SB.length contents)+    output `shouldBe` contents