{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedLists #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeApplications #-}
module Test.Hls
( module Test.Tasty.HUnit,
module Test.Tasty,
module Test.Tasty.ExpectedFailure,
module Test.Hls.Util,
module Language.LSP.Protocol.Types,
module Language.LSP.Protocol.Message,
module Language.LSP.Test,
module Control.Monad.IO.Class,
module Control.Applicative.Combinators,
defaultTestRunner,
goldenGitDiff,
goldenWithHaskellDoc,
goldenWithHaskellDocInTmpDir,
goldenWithHaskellAndCaps,
goldenWithHaskellAndCapsInTmpDir,
goldenWithCabalDoc,
goldenWithHaskellDocFormatter,
goldenWithHaskellDocFormatterInTmpDir,
goldenWithCabalDocFormatter,
goldenWithCabalDocFormatterInTmpDir,
goldenWithTestConfig,
def,
-- * Running HLS for integration tests
runSessionWithServer,
runSessionWithServerInTmpDir,
runSessionWithTestConfig,
-- * Running parameterised tests for a set of test configurations
parameterisedCursorTest,
-- * Helpful re-exports
PluginDescriptor,
IdeState,
-- * Helpers for expected test case failuers
BrokenBehavior(..),
ExpectBroken(..),
unCurrent,
-- * Assertion helper functions
waitForProgressDone,
waitForAllProgressDone,
waitForBuildQueue,
waitForProgressBegin,
waitForTypecheck,
waitForAction,
hlsConfigToClientConfig,
setHlsConfig,
getLastBuildKeys,
waitForKickDone,
waitForKickStart,
-- * Plugin descriptor helper functions for tests
PluginTestDescriptor,
hlsPluginTestRecorder,
mkPluginTestDescriptor,
mkPluginTestDescriptor',
-- * Re-export logger types
-- Avoids slightly annoying ghcide imports when they are unnecessary.
WithPriority(..),
Recorder,
Priority(..),
captureKickDiagnostics,
kick,
TestConfig(..)
)
where
import Control.Applicative.Combinators
import Control.Concurrent.Async (async, cancel, wait)
import Control.Concurrent.Extra
import Control.Exception.Safe
import Control.Lens ((^.))
import Control.Lens.Extras (is)
import Control.Monad (guard, unless, void)
import Control.Monad.Extra (forM)
import Control.Monad.IO.Class
import Data.Aeson (Result (Success),
Value (Null),
fromJSON, toJSON)
import qualified Data.Aeson as A
import Data.ByteString.Lazy (ByteString)
import Data.Default (Default, def)
import qualified Data.Map as M
import Data.Maybe (fromMaybe, mapMaybe)
import Data.Proxy (Proxy (Proxy))
import qualified Data.Text as T
import qualified Data.Text.Lazy as TL
import qualified Data.Text.Lazy.Encoding as TL
import Development.IDE (IdeState,
LoggingColumn (ThreadIdColumn),
defaultLayoutOptions,
layoutPretty,
renderStrict)
import Development.IDE.Main hiding (Log)
import qualified Development.IDE.Main as IDEMain
import Development.IDE.Plugin.Completions.Types (PosPrefixInfo)
import Development.IDE.Plugin.Test (TestRequest (GetBuildKeysBuilt, WaitForIdeRule, WaitForShakeQueue),
WaitForIdeRuleResult (ideResultSuccess))
import qualified Development.IDE.Plugin.Test as Test
import Development.IDE.Types.Options
import GHC.IO.Handle
import GHC.TypeLits
import Ide.Logger (Pretty (pretty),
Priority (..),
Recorder,
WithPriority (WithPriority, priority),
cfilter,
cmapWithPrio,
defaultLoggingColumns,
logWith,
makeDefaultStderrRecorder,
(<+>))
import qualified Ide.Logger as Logger
import Ide.PluginUtils (idePluginsToPluginDesc,
pluginDescToIdePlugins)
import Ide.Types
import Language.LSP.Protocol.Capabilities
import qualified Language.LSP.Protocol.Lens as L
import Language.LSP.Protocol.Message
import qualified Language.LSP.Protocol.Message as LSP
import Language.LSP.Protocol.Types hiding (Null)
import qualified Language.LSP.Server as LSP
import Language.LSP.Test
import Prelude hiding (log)
import System.Directory (canonicalizePath,
createDirectoryIfMissing,
getCurrentDirectory,
getTemporaryDirectory,
makeAbsolute,
setCurrentDirectory)
import System.Environment (lookupEnv, setEnv)
import System.FilePath
import System.IO.Extra (newTempDirWithin)
import System.IO.Unsafe (unsafePerformIO)
import System.Process.Extra (createPipe)
import System.Time.Extra
import qualified Test.Hls.FileSystem as FS
import Test.Hls.FileSystem
import Test.Hls.Util
import Test.Tasty hiding (Timeout)
import Test.Tasty.ExpectedFailure
import Test.Tasty.Golden
import Test.Tasty.HUnit
import Test.Tasty.Ingredients.Rerun
data Log
= LogIDEMain IDEMain.Log
| LogTestHarness LogTestHarness
instance Pretty Log where
pretty = \case
LogIDEMain log -> pretty log
LogTestHarness log -> pretty log
data LogTestHarness
= LogTestDir FilePath
| LogCleanup
| LogNoCleanup
instance Pretty LogTestHarness where
pretty = \case
LogTestDir dir -> "Test Project located in directory:" <+> pretty dir
LogCleanup -> "Cleaned up temporary directory"
LogNoCleanup -> "No cleanup of temporary directory"
data BrokenBehavior = Current | Ideal
data ExpectBroken (k :: BrokenBehavior) a where
BrokenCurrent :: a -> ExpectBroken 'Current a
BrokenIdeal :: a -> ExpectBroken 'Ideal a
unCurrent :: ExpectBroken 'Current a -> a
unCurrent (BrokenCurrent a) = a
-- | Run 'defaultMainWithRerun', limiting each single test case running at most 10 minutes
defaultTestRunner :: TestTree -> IO ()
defaultTestRunner = defaultMainWithRerun . adjustOption (const $ mkTimeout 600000000)
gitDiff :: FilePath -> FilePath -> [String]
gitDiff fRef fNew = ["git", "-c", "core.fileMode=false", "diff", "--no-index", "--text", "--exit-code", fRef, fNew]
goldenGitDiff :: TestName -> FilePath -> IO ByteString -> TestTree
goldenGitDiff name = goldenVsStringDiff name gitDiff
goldenWithHaskellDoc
:: Pretty b
=> Config
-> PluginTestDescriptor b
-> TestName
-> FilePath
-> FilePath
-> FilePath
-> FilePath
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithHaskellDoc = goldenWithDoc LanguageKind_Haskell
goldenWithHaskellDocInTmpDir
:: Pretty b
=> Config
-> PluginTestDescriptor b
-> TestName
-> VirtualFileTree
-> FilePath
-> FilePath
-> FilePath
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithHaskellDocInTmpDir = goldenWithDocInTmpDir LanguageKind_Haskell
goldenWithHaskellAndCaps
:: Pretty b
=> Config
-> ClientCapabilities
-> PluginTestDescriptor b
-> TestName
-> FilePath
-> FilePath
-> FilePath
-> FilePath
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithHaskellAndCaps config clientCaps plugin title testDataDir path desc ext act =
goldenGitDiff title (testDataDir </> path <.> desc <.> ext)
$ runSessionWithTestConfig def {
testDirLocation = Left testDataDir,
testConfigCaps = clientCaps,
testLspConfig = config,
testPluginDescriptor = plugin
}
$ const
-- runSessionWithServerAndCaps config plugin clientCaps testDataDir
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) "haskell"
void waitForBuildQueue
act doc
documentContents doc
goldenWithTestConfig
:: Pretty b
=> TestConfig b
-> TestName
-> VirtualFileTree
-> FilePath
-> FilePath
-> FilePath
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithTestConfig config title tree path desc ext act =
goldenGitDiff title (vftOriginalRoot tree </> path <.> desc <.> ext)
$ runSessionWithTestConfig config $ const
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) "haskell"
void waitForBuildQueue
act doc
documentContents doc
goldenWithHaskellAndCapsInTmpDir
:: Pretty b
=> Config
-> ClientCapabilities
-> PluginTestDescriptor b
-> TestName
-> VirtualFileTree
-> FilePath
-> FilePath
-> FilePath
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithHaskellAndCapsInTmpDir config clientCaps plugin title tree path desc ext act =
goldenGitDiff title (vftOriginalRoot tree </> path <.> desc <.> ext)
$
runSessionWithTestConfig def {
testDirLocation = Right tree,
testConfigCaps = clientCaps,
testLspConfig = config,
testPluginDescriptor = plugin
} $ const
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) "haskell"
void waitForBuildQueue
act doc
documentContents doc
goldenWithCabalDoc
:: Pretty b
=> Config
-> PluginTestDescriptor b
-> TestName
-> FilePath
-> FilePath
-> FilePath
-> FilePath
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithCabalDoc = goldenWithDoc (LanguageKind_Custom "cabal")
goldenWithDoc
:: Pretty b
=> LanguageKind
-> Config
-> PluginTestDescriptor b
-> TestName
-> FilePath
-> FilePath
-> FilePath
-> FilePath
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithDoc languageKind config plugin title testDataDir path desc ext act =
goldenGitDiff title (testDataDir </> path <.> desc <.> ext)
$ runSessionWithServer config plugin testDataDir
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) languageKind
void waitForBuildQueue
act doc
documentContents doc
goldenWithDocInTmpDir
:: Pretty b
=> LanguageKind
-> Config
-> PluginTestDescriptor b
-> TestName
-> VirtualFileTree
-> FilePath
-> FilePath
-> FilePath
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithDocInTmpDir languageKind config plugin title tree path desc ext act =
goldenGitDiff title (vftOriginalRoot tree </> path <.> desc <.> ext)
$ runSessionWithServerInTmpDir config plugin tree
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) languageKind
void waitForBuildQueue
act doc
documentContents doc
-- | A parameterised test is similar to a normal test case but allows to run
-- the same test case multiple times with different inputs.
-- A 'parameterisedCursorTest' allows to define a test case based on an input file
-- that specifies one or many cursor positions via the identification value '^'.
--
-- For example:
--
-- @
-- parameterisedCursorTest "Cursor Test" [trimming|
-- foo = 2
-- ^
-- bar = 3
-- baz = foo + bar
-- ^
-- |]
-- ["foo", "baz"]
-- (\input cursor -> findFunctionNameUnderCursor input cursor)
-- @
--
-- Assuming a fitting implementation for 'findFunctionNameUnderCursor'.
--
-- This test definition will run the test case 'findFunctionNameUnderCursor' for
-- each cursor position, each in its own isolated 'testCase'.
-- Cursor positions are identified via the character '^', which points to the
-- above line as the actual cursor position.
-- Lines containing '^' characters, are removed from the final text, that is
-- passed to the testing function.
--
-- TODO: Many Haskell and Cabal source may contain '^' characters for good reasons.
-- We likely need a way to change the character for certain test cases in the future.
--
-- The quasi quoter 'trimming' is very helpful to define such tests, as it additionally
-- allows to interpolate haskell values and functions. We reexport this quasi quoter
-- for easier usage.
parameterisedCursorTest :: (Show a, Eq a) => String -> T.Text -> [a] -> (T.Text -> PosPrefixInfo -> IO a) -> TestTree
parameterisedCursorTest title content expectations act
| lenPrefs /= lenExpected = error $ "parameterisedCursorTest: Expected " <> show lenExpected <> " cursors but found: " <> show lenPrefs
| otherwise = testGroup title $
map singleTest testCaseSpec
where
lenPrefs = length prefInfos
lenExpected = length expectations
(cleanText, prefInfos) = extractCursorPositions content
testCaseSpec = zip [1 ::Int ..] (zip expectations prefInfos)
singleTest (n, (expected, info)) = testCase (title <> " " <> show n) $ do
actual <- act cleanText info
assertEqual (mkParameterisedLabel info) expected actual
-- ------------------------------------------------------------
-- Helper function for initialising plugins under test
-- ------------------------------------------------------------
-- | Plugin under test where a fitting recorder is injected.
type PluginTestDescriptor b = Recorder (WithPriority b) -> IdePlugins IdeState
-- | Wrap a plugin you want to test, and inject a fitting recorder as required.
--
-- If you want to write the logs to stderr, run your tests with
-- "HLS_TEST_PLUGIN_LOG_STDERR=1", e.g.
--
-- @
-- HLS_TEST_PLUGIN_LOG_STDERR=1 cabal test <test-suite-of-plugin>
-- @
--
--
-- To write all logs to stderr, including logs of the server, use:
--
-- @
-- HLS_TEST_LOG_STDERR=1 cabal test <test-suite-of-plugin>
-- @
mkPluginTestDescriptor
:: (Recorder (WithPriority b) -> PluginId -> PluginDescriptor IdeState)
-> PluginId
-> PluginTestDescriptor b
mkPluginTestDescriptor pluginDesc plId recorder = IdePlugins [pluginDesc recorder plId]
-- | Wrap a plugin you want to test.
--
-- Ideally, try to migrate this plugin to co-log logger style architecture.
-- Therefore, you should prefer 'mkPluginTestDescriptor' to this if possible.
mkPluginTestDescriptor'
:: (PluginId -> PluginDescriptor IdeState)
-> PluginId
-> PluginTestDescriptor b
mkPluginTestDescriptor' pluginDesc plId _recorder = IdePlugins [pluginDesc plId]
-- | Initialize a recorder that can be instructed to write to stderr by
-- setting one of the environment variables:
--
-- * HLS_TEST_HARNESS_STDERR=1
-- * HLS_TEST_LOG_STDERR=1
--
-- "HLS_TEST_LOG_STDERR" is intended to enable all logging for the server and the plugins
-- under test.
hlsHelperTestRecorder :: Pretty a => IO (Recorder (WithPriority a))
hlsHelperTestRecorder = initializeTestRecorder ["HLS_TEST_HARNESS_STDERR", "HLS_TEST_LOG_STDERR"]
-- | Initialize a recorder that can be instructed to write to stderr by
-- setting one of the environment variables:
--
-- * HLS_TEST_PLUGIN_LOG_STDERR=1
-- * HLS_TEST_LOG_STDERR=1
--
-- before running the tests.
--
-- "HLS_TEST_LOG_STDERR" is intended to enable all logging for the server and the plugins
-- under test.
--
-- On the cli, use for example:
--
-- @
-- HLS_TEST_PLUGIN_LOG_STDERR=1 cabal test <test-suite-of-plugin>
-- @
--
-- To write all logs to stderr, including logs of the server, use:
--
-- @
-- HLS_TEST_LOG_STDERR=1 cabal test <test-suite-of-plugin>
-- @
hlsPluginTestRecorder :: Pretty a => IO (Recorder (WithPriority a))
hlsPluginTestRecorder = initializeTestRecorder ["HLS_TEST_PLUGIN_LOG_STDERR", "HLS_TEST_LOG_STDERR"]
-- | Generic recorder initialization for plugins and the HLS server for test-cases.
--
-- The created recorder writes to stderr if any of the given environment variables
-- have been set to a value different to @0@.
-- We allow multiple values, to make it possible to define a single environment variable
-- that instructs all recorders in the test-suite to write to stderr.
--
-- We have to return the base logger function for HLS server logging initialisation.
-- See 'runSessionWithServer'' for details.
initializeTestRecorder :: Pretty a => [String] -> IO (Recorder (WithPriority a))
initializeTestRecorder envVars = do
docWithPriorityRecorder <- makeDefaultStderrRecorder (Just $ ThreadIdColumn : defaultLoggingColumns)
-- lspClientLogRecorder
-- There are potentially multiple environment variables that enable this logger
definedEnvVars <- forM envVars (fmap (fromMaybe "0") . lookupEnv)
let logStdErr = any (/= "0") definedEnvVars
docWithFilteredPriorityRecorder =
if logStdErr then cfilter (\WithPriority{ priority } -> priority >= Debug) docWithPriorityRecorder
else mempty
pure (cmapWithPrio pretty docWithFilteredPriorityRecorder)
-- ------------------------------------------------------------
-- Run an HLS server testing a specific plugin
-- ------------------------------------------------------------
runSessionWithServerInTmpDir :: Pretty b => Config -> PluginTestDescriptor b -> VirtualFileTree -> Session a -> IO a
runSessionWithServerInTmpDir config plugin tree act =
runSessionWithTestConfig def
{testLspConfig=config, testPluginDescriptor = plugin, testDirLocation=Right tree}
(const act)
runWithLockInTempDir :: VirtualFileTree -> (FileSystem -> IO a) -> IO a
runWithLockInTempDir tree act = withLock lockForTempDirs $ do
testRoot <- setupTestEnvironment
helperRecorder <- hlsHelperTestRecorder
-- Do not clean up the temporary directory if this variable is set to anything but '0'.
-- Aids debugging.
cleanupTempDir <- lookupEnv "HLS_TEST_HARNESS_NO_TESTDIR_CLEANUP"
let runTestInDir action = case cleanupTempDir of
Just val | val /= "0" -> do
(tempDir, _) <- newTempDirWithin testRoot
a <- action tempDir
logWith helperRecorder Debug LogNoCleanup
pure a
_ -> do
(tempDir, cleanup) <- newTempDirWithin testRoot
a <- action tempDir `finally` cleanup
logWith helperRecorder Debug LogCleanup
pure a
runTestInDir $ \tmpDir' -> do
-- we canonicalize the path, so that we do not need to do
-- cannibalization during the test when we compare two paths
tmpDir <- canonicalizePath tmpDir'
logWith helperRecorder Info $ LogTestDir tmpDir
fs <- FS.materialiseVFT tmpDir tree
act fs
runSessionWithServer :: Pretty b => Config -> PluginTestDescriptor b -> FilePath -> Session a -> IO a
runSessionWithServer config plugin fp act =
runSessionWithTestConfig def {
testLspConfig=config
, testPluginDescriptor=plugin
, testDirLocation = Left fp
} (const act)
instance Default (TestConfig b) where
def = TestConfig {
testDirLocation = Right $ VirtualFileTree [] "",
testClientRoot = Nothing,
testServerRoot = Nothing,
testShiftRoot = False,
testDisableKick = False,
testDisableDefaultPlugin = False,
testPluginDescriptor = mempty,
testLspConfig = def,
testConfigSession = def,
testConfigCaps = fullLatestClientCaps,
testCheckProject = False
}
-- | Setup the test environment for isolated tests.
--
-- This creates a directory in the temporary directory that will be
-- reused for running isolated tests.
-- It returns the root to the testing directory that tests should use.
-- This directory is not fully cleaned between reruns.
-- However, it is totally safe to delete the directory between runs.
--
-- Additionally, this overwrites the 'XDG_CACHE_HOME' variable to isolate
-- the tests from existing caches. 'hie-bios' and 'ghcide' honour the
-- 'XDG_CACHE_HOME' environment variable and generate their caches there.
setupTestEnvironment :: IO FilePath
setupTestEnvironment = do
tmpDirRoot <- getTemporaryDirectory
let testRoot = tmpDirRoot </> "hls-test-root"
testCacheDir = testRoot </> ".cache"
createDirectoryIfMissing True testCacheDir
setEnv "XDG_CACHE_HOME" testCacheDir
pure testRoot
goldenWithHaskellDocFormatter
:: Pretty b
=> Config
-> PluginTestDescriptor b -- ^ Formatter plugin to be used
-> String -- ^ Name of the formatter to be used
-> PluginConfig
-> TestName -- ^ Title of the test
-> FilePath -- ^ Directory of the test data to be used
-> FilePath -- ^ Path to the testdata to be used within the directory
-> FilePath -- ^ Additional suffix to be appended to the output file
-> FilePath -- ^ Extension of the output file
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithHaskellDocFormatter config plugin formatter conf title testDataDir path desc ext act =
let config' = config { formattingProvider = T.pack formatter , plugins = M.singleton (PluginId $ T.pack formatter) conf }
in goldenGitDiff title (testDataDir </> path <.> desc <.> ext)
$ runSessionWithServer config' plugin testDataDir
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) "haskell"
void waitForBuildQueue
act doc
documentContents doc
goldenWithCabalDocFormatter
:: Pretty b
=> Config
-> PluginTestDescriptor b -- ^ Formatter plugin to be used
-> String -- ^ Name of the formatter to be used
-> PluginConfig
-> TestName -- ^ Title of the test
-> FilePath -- ^ Directory of the test data to be used
-> FilePath -- ^ Path to the testdata to be used within the directory
-> FilePath -- ^ Additional suffix to be appended to the output file
-> FilePath -- ^ Extension of the output file
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithCabalDocFormatter config plugin formatter conf title testDataDir path desc ext act =
let config' = config { cabalFormattingProvider = T.pack formatter , plugins = M.singleton (PluginId $ T.pack formatter) conf }
in goldenGitDiff title (testDataDir </> path <.> desc <.> ext)
$ runSessionWithServer config' plugin testDataDir
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) "cabal"
void waitForBuildQueue
act doc
documentContents doc
goldenWithHaskellDocFormatterInTmpDir
:: Pretty b
=> Config
-> PluginTestDescriptor b -- ^ Formatter plugin to be used
-> String -- ^ Name of the formatter to be used
-> PluginConfig
-> TestName -- ^ Title of the test
-> VirtualFileTree -- ^ Virtual representation of the test project
-> FilePath -- ^ Path to the testdata to be used within the directory
-> FilePath -- ^ Additional suffix to be appended to the output file
-> FilePath -- ^ Extension of the output file
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithHaskellDocFormatterInTmpDir config plugin formatter conf title tree path desc ext act =
let config' = config { formattingProvider = T.pack formatter , plugins = M.singleton (PluginId $ T.pack formatter) conf }
in goldenGitDiff title (vftOriginalRoot tree </> path <.> desc <.> ext)
$ runSessionWithServerInTmpDir config' plugin tree
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) "haskell"
void waitForBuildQueue
act doc
documentContents doc
goldenWithCabalDocFormatterInTmpDir
:: Pretty b
=> Config
-> PluginTestDescriptor b -- ^ Formatter plugin to be used
-> String -- ^ Name of the formatter to be used
-> PluginConfig
-> TestName -- ^ Title of the test
-> VirtualFileTree -- ^ Virtual representation of the test project
-> FilePath -- ^ Path to the testdata to be used within the directory
-> FilePath -- ^ Additional suffix to be appended to the output file
-> FilePath -- ^ Extension of the output file
-> (TextDocumentIdentifier -> Session ())
-> TestTree
goldenWithCabalDocFormatterInTmpDir config plugin formatter conf title tree path desc ext act =
let config' = config { cabalFormattingProvider = T.pack formatter , plugins = M.singleton (PluginId $ T.pack formatter) conf }
in goldenGitDiff title (vftOriginalRoot tree </> path <.> desc <.> ext)
$ runSessionWithServerInTmpDir config' plugin tree
$ TL.encodeUtf8 . TL.fromStrict
<$> do
doc <- openDoc (path <.> ext) "cabal"
void waitForBuildQueue
act doc
documentContents doc
-- | Restore cwd after running an action
keepCurrentDirectory :: IO a -> IO a
keepCurrentDirectory = bracket getCurrentDirectory setCurrentDirectory . const
{-# NOINLINE lock #-}
-- | Never run in parallel
lock :: Lock
lock = unsafePerformIO newLock
{-# NOINLINE lockForTempDirs #-}
-- | Never run in parallel
lockForTempDirs :: Lock
lockForTempDirs = unsafePerformIO newLock
data TestConfig b = TestConfig
{
testDirLocation :: Either FilePath VirtualFileTree
-- ^ Client capabilities
-- ^ The file tree to use for the test, either a directory or a virtual file tree
-- if using a virtual file tree,
-- Creates a temporary directory, and materializes the VirtualFileTree
-- in the temporary directory.
--
-- To debug test cases and verify the file system is correctly set up,
-- you should set the environment variable 'HLS_TEST_HARNESS_NO_TESTDIR_CLEANUP=1'.
-- Further, we log the temporary directory location on startup. To view
-- the logs, set the environment variable 'HLS_TEST_HARNESS_STDERR=1'.
-- Example invocation to debug test cases:
--
-- @
-- HLS_TEST_HARNESS_NO_TESTDIR_CLEANUP=1 HLS_TEST_HARNESS_STDERR=1 cabal test <plugin-name>
-- @
--
-- Don't forget to use 'TASTY_PATTERN' to debug only a subset of tests.
--
-- For plugin test logs, look at the documentation of 'mkPluginTestDescriptor'.
, testShiftRoot :: Bool
-- ^ Whether to shift the current directory to the root of the project
, testClientRoot :: Maybe FilePath
-- ^ Specify the root of (the client or LSP context),
-- if Nothing it is the same as the testDirLocation
-- if Just, it is subdirectory of the testDirLocation
, testServerRoot :: Maybe FilePath
-- ^ Specify root of the server, in exe, it can be specify in command line --cwd,
-- or just the server start directory
-- if Nothing it is the same as the testDirLocation
-- if Just, it is subdirectory of the testDirLocation
, testDisableKick :: Bool
-- ^ Whether to disable the kick action
, testDisableDefaultPlugin :: Bool
-- ^ Whether to disable the default plugin comes with ghcide
, testCheckProject :: Bool
-- ^ Whether to typecheck check the project after the session is loaded
, testPluginDescriptor :: PluginTestDescriptor b
-- ^ Plugin to load on the server.
, testLspConfig :: Config
-- ^ lsp config for the server
, testConfigSession :: SessionConfig
-- ^ config for the test session
, testConfigCaps :: ClientCapabilities
-- ^ Client capabilities
}
wrapClientLogger :: Pretty a => Recorder (WithPriority a) ->
IO (Recorder (WithPriority a), LSP.LanguageContextEnv Config -> IO ())
wrapClientLogger logger = do
(lspLogRecorder', cb1) <- Logger.withBacklog Logger.lspClientLogRecorder
let lspLogRecorder = cmapWithPrio (renderStrict . layoutPretty defaultLayoutOptions. pretty) lspLogRecorder'
return (lspLogRecorder <> logger, cb1)
-- | Host a server, and run a test session on it.
-- For setting custom timeout, set the environment variable 'LSP_TIMEOUT'
-- * LSP_TIMEOUT=10 cabal test
-- For more detail of the test configuration, see 'TestConfig'
runSessionWithTestConfig :: Pretty b => TestConfig b -> (FilePath -> Session a) -> IO a
runSessionWithTestConfig TestConfig{..} session =
runSessionInVFS testDirLocation $ \root -> shiftRoot root $ do
(inR, inW) <- createPipe
(outR, outW) <- createPipe
let serverRoot = fromMaybe root testServerRoot
let clientRoot = fromMaybe root testClientRoot
(recorder, cb1) <- wrapClientLogger =<< hlsPluginTestRecorder
(recorderIde, cb2) <- wrapClientLogger =<< hlsHelperTestRecorder
-- This plugin just installs a handler for the `initialized` notification, which then
-- picks up the LSP environment and feeds it to our recorders
let lspRecorderPlugin = pluginDescToIdePlugins [(defaultPluginDescriptor "LSPRecorderCallback" "Internal plugin")
{ pluginNotificationHandlers = mkPluginNotificationHandler LSP.SMethod_Initialized $ \_ _ _ _ -> do
env <- LSP.getLspEnv
liftIO $ (cb1 <> cb2) env
}]
let plugins = testPluginDescriptor recorder <> lspRecorderPlugin
timeoutOverride <- fmap read <$> lookupEnv "LSP_TIMEOUT"
let sconf' = testConfigSession { lspConfig = hlsConfigToClientConfig testLspConfig, messageTimeout = fromMaybe (messageTimeout defaultConfig) timeoutOverride}
arguments = testingArgs serverRoot recorderIde plugins
server <- async $
IDEMain.defaultMain (cmapWithPrio LogIDEMain recorderIde)
arguments { argsHandleIn = pure inR , argsHandleOut = pure outW }
result <- runSessionWithHandles inW outR sconf' testConfigCaps clientRoot (session root)
hClose inW
timeout 3 (wait server) >>= \case
Just () -> pure ()
Nothing -> do
putStrLn "Server does not exit in 3s, canceling the async task..."
(t, _) <- duration $ cancel server
putStrLn $ "Finishing canceling (took " <> showDuration t <> "s)"
pure result
where
shiftRoot shiftTarget f =
if testShiftRoot
then withLock lock $ keepCurrentDirectory $ setCurrentDirectory shiftTarget >> f
else f
runSessionInVFS (Left testConfigRoot) act = do
root <- makeAbsolute testConfigRoot
act root
runSessionInVFS (Right vfs) act = runWithLockInTempDir vfs $ \fs -> act (fsRoot fs)
testingArgs prjRoot recorderIde plugins =
let
arguments@Arguments{ argsHlsPlugins, argsIdeOptions, argsLspOptions } = defaultArguments (cmapWithPrio LogIDEMain recorderIde) prjRoot plugins
argsHlsPlugins' = if testDisableDefaultPlugin
then plugins
else argsHlsPlugins
hlsPlugins = pluginDescToIdePlugins $ idePluginsToPluginDesc argsHlsPlugins'
++ [Test.blockCommandDescriptor "block-command", Test.plugin]
ideOptions config sessionLoader = (argsIdeOptions config sessionLoader){
optTesting = IdeTesting True
, optCheckProject = pure testCheckProject
}
in
arguments
{ argsHlsPlugins = hlsPlugins
, argsIdeOptions = ideOptions
, argsLspOptions = argsLspOptions { LSP.optProgressStartDelay = 0, LSP.optProgressUpdateDelay = 0 }
, argsDefaultHlsConfig = testLspConfig
, argsProjectRoot = prjRoot
, argsDisableKick = testDisableKick
}
-- | Wait for the next progress begin step
waitForProgressBegin :: Session ()
waitForProgressBegin = skipManyTill anyMessage $ satisfyMaybe $ \case
FromServerMess SMethod_Progress (TNotificationMessage _ _ (ProgressParams _ v)) | is _workDoneProgressBegin v-> Just ()
_ -> Nothing
-- | Wait for the next progress end step
waitForProgressDone :: Session ()
waitForProgressDone = skipManyTill anyMessage $ satisfyMaybe $ \case
FromServerMess SMethod_Progress (TNotificationMessage _ _ (ProgressParams _ v)) | is _workDoneProgressEnd v-> Just ()
_ -> Nothing
-- | Wait for all progress to be done
-- Needs at least one progress done notification to return
waitForAllProgressDone :: Session ()
waitForAllProgressDone = loop
where
loop = do
~() <- skipManyTill anyMessage $ satisfyMaybe $ \case
FromServerMess SMethod_Progress (TNotificationMessage _ _ (ProgressParams _ v)) | is _workDoneProgressEnd v -> Just ()
_ -> Nothing
done <- null <$> getIncompleteProgressSessions
unless done loop
-- | Wait for the build queue to be empty
waitForBuildQueue :: Session Seconds
waitForBuildQueue = do
let m = SMethod_CustomMethod (Proxy @"test")
waitId <- sendRequest m (toJSON WaitForShakeQueue)
(td, resp) <- duration $ skipManyTill anyMessage $ responseForId m waitId
case resp of
TResponseMessage{_result=Right Null} -> return td
-- assume a ghcide binary lacking the WaitForShakeQueue method
_ -> return 0
callTestPlugin :: (A.FromJSON b) => TestRequest -> Session (Either (TResponseError @ClientToServer (Method_CustomMethod "test")) b)
callTestPlugin cmd = do
let cm = SMethod_CustomMethod (Proxy @"test")
waitId <- sendRequest cm (A.toJSON cmd)
TResponseMessage{_result} <- skipManyTill anyMessage $ responseForId cm waitId
return $ do
e <- _result
case A.fromJSON e of
A.Error err -> Left $ TResponseError (InR ErrorCodes_InternalError) (T.pack err) Nothing
A.Success a -> pure a
waitForAction :: String -> TextDocumentIdentifier -> Session (Either (TResponseError @ClientToServer (Method_CustomMethod "test")) WaitForIdeRuleResult)
waitForAction key TextDocumentIdentifier{_uri} =
callTestPlugin (WaitForIdeRule key _uri)
waitForTypecheck :: TextDocumentIdentifier -> Session (Either (TResponseError @ClientToServer (Method_CustomMethod "test")) Bool)
waitForTypecheck tid = fmap ideResultSuccess <$> waitForAction "typecheck" tid
getLastBuildKeys :: Session (Either (TResponseError @ClientToServer (Method_CustomMethod "test")) [T.Text])
getLastBuildKeys = callTestPlugin GetBuildKeysBuilt
hlsConfigToClientConfig :: Config -> A.Object
hlsConfigToClientConfig config = [("haskell", toJSON config)]
-- | Set the HLS client configuration, and wait for the server to update to use it.
-- Note that this will only work if we are not ignoring configuration requests, you
-- may need to call @setIgnoringConfigurationRequests False@ first.
setHlsConfig :: Config -> Session ()
setHlsConfig config = do
setConfig $ hlsConfigToClientConfig config
-- wait until we get the workspace/configuration request from the server, so
-- we know things are settling. This only works if we're not skipping config
-- requests!
skipManyTill anyMessage (void configurationRequest)
captureKickDiagnostics :: Session () -> Session () -> Session [Diagnostic]
captureKickDiagnostics start done = do
_ <- skipManyTill anyMessage start
messages <- manyTill anyMessage done
pure $ concat $ mapMaybe diagnostics messages
where
diagnostics :: FromServerMessage' a -> Maybe [Diagnostic]
diagnostics = \msg -> case msg of
FromServerMess SMethod_TextDocumentPublishDiagnostics diags -> Just (diags ^. L.params . L.diagnostics)
_ -> Nothing
waitForKickDone :: Session ()
waitForKickDone = void $ skipManyTill anyMessage nonTrivialKickDone
waitForKickStart :: Session ()
waitForKickStart = void $ skipManyTill anyMessage nonTrivialKickStart
nonTrivialKickDone :: Session ()
nonTrivialKickDone = kick (Proxy @"kick/done") >>= guard . not . null
nonTrivialKickStart :: Session ()
nonTrivialKickStart = kick (Proxy @"kick/start") >>= guard . not . null
kick :: KnownSymbol k => Proxy k -> Session [FilePath]
kick proxyMsg = do
NotMess TNotificationMessage{_params} <- customNotification proxyMsg
case fromJSON _params of
Success x -> return x
other -> error $ "Failed to parse kick/done details: " <> show other