b0ed29b3df
I have not spent any time optimising the generated programs but they do not look totally unreasonable from a cursory inspection. Fixes #158
104 lines
3.6 KiB
Haskell
104 lines
3.6 KiB
Haskell
{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE QuasiQuotes #-}
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{-# LANGUAGE OverloadedStrings #-}
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module Main where
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import Control.DeepSeq
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import qualified Control.Exception as Exc
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import Control.Monad
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import Control.Monad.IO.Class
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import Data.Fix
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import Data.List (isInfixOf)
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import Data.Maybe (isJust)
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import Data.String.Interpolate.IsString
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import Data.Text (unpack)
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import Data.Time
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import qualified EvalTests
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import qualified Nix
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import Nix.Exec
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import Nix.Expr.Types
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import Nix.Options
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import Nix.Parser
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import Nix.Value
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import qualified NixLanguageTests
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import qualified ParserTests
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import qualified PrettyTests
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import qualified PrettyParseTests
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import System.Environment
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import System.FilePath.Glob
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import System.Posix.Files
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import System.Process
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import Test.Tasty
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import Test.Tasty.HUnit
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cabalCorrectlyGenerated :: Assertion
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cabalCorrectlyGenerated = do
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output <- readCreateProcess (shell "hpack") ""
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when ("modified manually" `isInfixOf` output) $
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errorWithoutStackTrace
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"Edit package.yaml and re-generate hnix.cabal by running \"hpack\""
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ensureLangTestsPresent :: Assertion
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ensureLangTestsPresent = do
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exist <- fileExist "data/nix/tests/local.mk"
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unless exist $
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errorWithoutStackTrace $ unlines
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[ "Directory data/nix does not have any files."
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, "Did you forget to run"
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++ " \"git submodule update --init --recursive\"?" ]
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ensureNixpkgsCanParse :: Assertion
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ensureNixpkgsCanParse =
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consider "default.nix" (parseNixFile "default.nix") $ \case
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Fix (NAbs (ParamSet params _ _) _) -> do
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let rev = getString "rev" params
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sha256 = getString "sha256" params
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consider "fetchTarball expression" (pure $ parseNixTextLoc [i|
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builtins.fetchTarball {
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url = "https://github.com/NixOS/nixpkgs/archive/#{rev}.tar.gz";
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sha256 = "#{sha256}";
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}|]) $ \expr -> do
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NVStr dir _ <- do
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time <- liftIO getCurrentTime
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runLazyM (defaultOptions time) $ Nix.nixEvalExprLoc Nothing expr
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files <- globDir1 (compile "**/*.nix") (unpack dir)
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forM_ files $ \file ->
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-- Parse and deepseq the resulting expression tree, to ensure the
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-- parser is fully executed.
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consider file (parseNixFileLoc file) $ Exc.evaluate . force
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v -> error $ "Unexpected parse from default.nix: " ++ show v
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where
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getExpr k m = let Just (Just r) = lookup k m in r
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getString k m =
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let Fix (NStr (DoubleQuoted [Plain str])) = getExpr k m in str
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consider path action k = action >>= \case
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Failure err -> errorWithoutStackTrace $
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"Parsing " ++ path ++ " failed: " ++ show err
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Success expr -> k expr
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main :: IO ()
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main = do
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nixLanguageTests <- NixLanguageTests.genTests
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evalComparisonTests <- EvalTests.genEvalCompareTests
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langTestsEnv <- lookupEnv "LANGUAGE_TESTS"
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nixpkgsTestsEnv <- lookupEnv "NIXPKGS_TESTS"
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let runLangTests = isJust langTestsEnv
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let runNixpkgsTests = isJust nixpkgsTestsEnv
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defaultMain $ testGroup "hnix" $
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[ testCase "hnix.cabal correctly generated" cabalCorrectlyGenerated ] ++
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[ ParserTests.tests
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, EvalTests.tests
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, PrettyTests.tests
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, PrettyParseTests.tests
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, evalComparisonTests ] ++
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[ testCase "Nix language tests present" ensureLangTestsPresent
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| runLangTests ] ++
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[ nixLanguageTests | runLangTests ] ++
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[ testCase "Nixpkgs parses without errors" ensureNixpkgsCanParse
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| runNixpkgsTests ]
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