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Main.hs
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-- Copyright (c) 2019 The DAML Authors. All rights reserved.
-- SPDX-License-Identifier: Apache-2.0
{-# LANGUAGE AllowAmbiguousTypes #-}
{-# LANGUAGE CPP #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE ImplicitParams #-}
{-# LANGUAGE PatternSynonyms #-}
{-# LANGUAGE PolyKinds #-}
{-# LANGUAGE TypeOperators #-}
{-# OPTIONS_GHC -Wno-deprecations -Wno-unticked-promoted-constructors #-}
module Main (main) where
import Control.Applicative.Combinators
import Control.Exception (bracket_, catch)
import qualified Control.Lens as Lens
import Control.Monad
import Control.Monad.IO.Class (MonadIO, liftIO)
import Data.Aeson (fromJSON, toJSON)
import qualified Data.Aeson as A
import qualified Data.Binary as Binary
import Data.Default
import Data.Foldable
import Data.List.Extra
import Data.Maybe
import Data.Rope.UTF16 (Rope)
import qualified Data.Rope.UTF16 as Rope
import qualified Data.Set as Set
import qualified Data.Text as T
import Development.IDE.Core.PositionMapping (PositionResult (..),
fromCurrent,
positionResultToMaybe,
toCurrent)
import Development.IDE.Core.Shake (Q (..))
import Development.IDE.GHC.Compat (GhcVersion (..),
ghcVersion)
import Development.IDE.GHC.Util
import qualified Development.IDE.Main as IDE
import Development.IDE.Plugin.Completions.Types (extendImportCommandId)
import Development.IDE.Plugin.TypeLenses (typeLensCommandId)
import Development.IDE.Spans.Common
import Development.IDE.Test (Cursor,
canonicalizeUri,
diagnostic,
expectCurrentDiagnostics,
expectDiagnostics,
expectDiagnosticsWithTags,
expectMessages,
expectNoMoreDiagnostics,
flushMessages,
standardizeQuotes,
waitForAction)
import Development.IDE.Test.Runfiles
import qualified Development.IDE.Types.Diagnostics as Diagnostics
import Development.IDE.Types.Location
import qualified Language.LSP.Types.Lens as Lens (label)
import Development.Shake (getDirectoryFilesIO)
import qualified Experiments as Bench
import Ide.Plugin.Config
import Language.LSP.Test
import Language.LSP.Types hiding
(SemanticTokenAbsolute (length, line),
SemanticTokenRelative (length),
SemanticTokensEdit (_start),
mkRange)
import Language.LSP.Types.Capabilities
import qualified Language.LSP.Types.Lens as Lsp (diagnostics,
message,
params)
import Language.LSP.VFS (applyChange)
import Network.URI
import System.Directory
import System.Environment.Blank (getEnv, setEnv,
unsetEnv)
import System.Exit (ExitCode (ExitSuccess))
import System.FilePath
import System.IO.Extra hiding (withTempDir)
import qualified System.IO.Extra
import System.Info.Extra (isWindows)
import System.Mem (performGC)
import System.Process.Extra (CreateProcess (cwd),
createPipe, proc,
readCreateProcessWithExitCode)
import Test.QuickCheck
-- import Test.QuickCheck.Instances ()
import Control.Concurrent (threadDelay)
import Control.Concurrent.Async
import Control.Lens ((^.))
import Control.Monad.Extra (whenJust)
import Data.IORef
import Data.IORef.Extra (atomicModifyIORef_)
import Data.String (IsString (fromString))
import Data.Tuple.Extra
import Development.IDE.Core.FileStore (getModTime)
import Development.IDE.Plugin.CodeAction (matchRegExMultipleImports)
import qualified Development.IDE.Plugin.HLS.GhcIde as Ghcide
import Development.IDE.Plugin.Test (TestRequest (BlockSeconds, GetInterfaceFilesDir),
WaitForIdeRuleResult (..),
blockCommandId)
import Ide.PluginUtils (pluginDescToIdePlugins)
import Ide.Types
import qualified Language.LSP.Types as LSP
import qualified Language.LSP.Types.Lens as L
import qualified Progress
import System.Time.Extra
import Test.Tasty
import Test.Tasty.ExpectedFailure
import Test.Tasty.HUnit
import Test.Tasty.Ingredients.Rerun
import Test.Tasty.QuickCheck
import Text.Printf (printf)
import Text.Regex.TDFA ((=~))
waitForProgressBegin :: Session ()
waitForProgressBegin = skipManyTill anyMessage $ satisfyMaybe $ \case
FromServerMess SProgress (NotificationMessage _ _ (ProgressParams _ (Begin _))) -> Just ()
_ -> Nothing
waitForProgressDone :: Session ()
waitForProgressDone = skipManyTill anyMessage $ satisfyMaybe $ \case
FromServerMess SProgress (NotificationMessage _ _ (ProgressParams _ (End _))) -> Just ()
_ -> Nothing
main :: IO ()
main = do
-- We mess with env vars so run single-threaded.
defaultMainWithRerun $ testGroup "ghcide"
[ testSession "open close" $ do
doc <- createDoc "Testing.hs" "haskell" ""
void (skipManyTill anyMessage $ message SWindowWorkDoneProgressCreate)
waitForProgressBegin
closeDoc doc
waitForProgressDone
, codeActionTests
, initializeResponseTests
, completionTests
, cppTests
, diagnosticTests
, codeLensesTests
, outlineTests
, highlightTests
, findDefinitionAndHoverTests
, pluginSimpleTests
, pluginParsedResultTests
, preprocessorTests
, thTests
, safeTests
, unitTests
, haddockTests
, positionMappingTests
, watchedFilesTests
, cradleTests
, dependentFileTest
, nonLspCommandLine
, benchmarkTests
, ifaceTests
, bootTests
, rootUriTests
, asyncTests
, clientSettingsTest
, codeActionHelperFunctionTests
, referenceTests
]
initializeResponseTests :: TestTree
initializeResponseTests = withResource acquire release tests where
-- these tests document and monitor the evolution of the
-- capabilities announced by the server in the initialize
-- response. Currently the server advertises almost no capabilities
-- at all, in some cases failing to announce capabilities that it
-- actually does provide! Hopefully this will change ...
tests :: IO (ResponseMessage Initialize) -> TestTree
tests getInitializeResponse =
testGroup "initialize response capabilities"
[ chk " text doc sync" _textDocumentSync tds
, chk " hover" _hoverProvider (Just $ InL True)
, chk " completion" _completionProvider (Just $ CompletionOptions Nothing (Just ["."]) Nothing (Just False))
, chk "NO signature help" _signatureHelpProvider Nothing
, chk " goto definition" _definitionProvider (Just $ InL True)
, chk " goto type definition" _typeDefinitionProvider (Just $ InL True)
-- BUG in lsp-test, this test fails, just change the accepted response
-- for now
, chk "NO goto implementation" _implementationProvider (Just $ InL False)
, chk " find references" _referencesProvider (Just $ InL True)
, chk " doc highlight" _documentHighlightProvider (Just $ InL True)
, chk " doc symbol" _documentSymbolProvider (Just $ InL True)
, chk " workspace symbol" _workspaceSymbolProvider (Just True)
, chk " code action" _codeActionProvider (Just $ InL True)
, chk " code lens" _codeLensProvider (Just $ CodeLensOptions (Just False) (Just False))
, chk "NO doc formatting" _documentFormattingProvider (Just $ InL False)
, chk "NO doc range formatting"
_documentRangeFormattingProvider (Just $ InL False)
, chk "NO doc formatting on typing"
_documentOnTypeFormattingProvider Nothing
, chk "NO renaming" _renameProvider (Just $ InL False)
, chk "NO doc link" _documentLinkProvider Nothing
, chk "NO color" _colorProvider (Just $ InL False)
, chk "NO folding range" _foldingRangeProvider (Just $ InL False)
, che " execute command" _executeCommandProvider [extendImportCommandId, typeLensCommandId, blockCommandId]
, chk " workspace" _workspace (Just $ WorkspaceServerCapabilities (Just WorkspaceFoldersServerCapabilities{_supported = Just True, _changeNotifications = Just ( InR True )}))
, chk "NO experimental" _experimental Nothing
] where
tds = Just (InL (TextDocumentSyncOptions
{ _openClose = Just True
, _change = Just TdSyncIncremental
, _willSave = Nothing
, _willSaveWaitUntil = Nothing
, _save = Just (InR $ SaveOptions {_includeText = Nothing})}))
chk :: (Eq a, Show a) => TestName -> (ServerCapabilities -> a) -> a -> TestTree
chk title getActual expected =
testCase title $ getInitializeResponse >>= \ir -> expected @=? (getActual . innerCaps) ir
che :: TestName -> (ServerCapabilities -> Maybe ExecuteCommandOptions) -> [T.Text] -> TestTree
che title getActual expected = testCase title doTest
where
doTest = do
ir <- getInitializeResponse
let Just ExecuteCommandOptions {_commands = List commands} = getActual $ innerCaps ir
zipWithM_ (\e o -> T.isSuffixOf e o @? show (e,o)) expected commands
innerCaps :: ResponseMessage Initialize -> ServerCapabilities
innerCaps (ResponseMessage _ _ (Right (InitializeResult c _))) = c
innerCaps (ResponseMessage _ _ (Left _)) = error "Initialization error"
acquire :: IO (ResponseMessage Initialize)
acquire = run initializeResponse
release :: ResponseMessage Initialize -> IO ()
release = const $ pure ()
diagnosticTests :: TestTree
diagnosticTests = testGroup "diagnostics"
[ testSessionWait "fix syntax error" $ do
let content = T.unlines [ "module Testing wher" ]
doc <- createDoc "Testing.hs" "haskell" content
expectDiagnostics [("Testing.hs", [(DsError, (0, 15), "parse error")])]
let change = TextDocumentContentChangeEvent
{ _range = Just (Range (Position 0 15) (Position 0 19))
, _rangeLength = Nothing
, _text = "where"
}
changeDoc doc [change]
expectDiagnostics [("Testing.hs", [])]
, testSessionWait "introduce syntax error" $ do
let content = T.unlines [ "module Testing where" ]
doc <- createDoc "Testing.hs" "haskell" content
void $ skipManyTill anyMessage (message SWindowWorkDoneProgressCreate)
waitForProgressBegin
let change = TextDocumentContentChangeEvent
{ _range = Just (Range (Position 0 15) (Position 0 18))
, _rangeLength = Nothing
, _text = "wher"
}
changeDoc doc [change]
expectDiagnostics [("Testing.hs", [(DsError, (0, 15), "parse error")])]
, testSessionWait "update syntax error" $ do
let content = T.unlines [ "module Testing(missing) where" ]
doc <- createDoc "Testing.hs" "haskell" content
expectDiagnostics [("Testing.hs", [(DsError, (0, 15), "Not in scope: 'missing'")])]
let change = TextDocumentContentChangeEvent
{ _range = Just (Range (Position 0 15) (Position 0 16))
, _rangeLength = Nothing
, _text = "l"
}
changeDoc doc [change]
expectDiagnostics [("Testing.hs", [(DsError, (0, 15), "Not in scope: 'lissing'")])]
, testSessionWait "variable not in scope" $ do
let content = T.unlines
[ "module Testing where"
, "foo :: Int -> Int -> Int"
, "foo a _b = a + ab"
, "bar :: Int -> Int -> Int"
, "bar _a b = cd + b"
]
_ <- createDoc "Testing.hs" "haskell" content
expectDiagnostics
[ ( "Testing.hs"
, [ (DsError, (2, 15), "Variable not in scope: ab")
, (DsError, (4, 11), "Variable not in scope: cd")
]
)
]
, testSessionWait "type error" $ do
let content = T.unlines
[ "module Testing where"
, "foo :: Int -> String -> Int"
, "foo a b = a + b"
]
_ <- createDoc "Testing.hs" "haskell" content
expectDiagnostics
[ ( "Testing.hs"
, [(DsError, (2, 14), "Couldn't match type '[Char]' with 'Int'")]
)
]
, testSessionWait "typed hole" $ do
let content = T.unlines
[ "module Testing where"
, "foo :: Int -> String"
, "foo a = _ a"
]
_ <- createDoc "Testing.hs" "haskell" content
expectDiagnostics
[ ( "Testing.hs"
, [(DsError, (2, 8), "Found hole: _ :: Int -> String")]
)
]
, testGroup "deferral" $
let sourceA a = T.unlines
[ "module A where"
, "a :: Int"
, "a = " <> a]
sourceB = T.unlines
[ "module B where"
, "import A ()"
, "b :: Float"
, "b = True"]
bMessage = "Couldn't match expected type 'Float' with actual type 'Bool'"
expectedDs aMessage =
[ ("A.hs", [(DsError, (2,4), aMessage)])
, ("B.hs", [(DsError, (3,4), bMessage)])]
deferralTest title binding msg = testSessionWait title $ do
_ <- createDoc "A.hs" "haskell" $ sourceA binding
_ <- createDoc "B.hs" "haskell" sourceB
expectDiagnostics $ expectedDs msg
in
[ deferralTest "type error" "True" "Couldn't match expected type"
, deferralTest "typed hole" "_" "Found hole"
, deferralTest "out of scope var" "unbound" "Variable not in scope"
]
, testSessionWait "remove required module" $ do
let contentA = T.unlines [ "module ModuleA where" ]
docA <- createDoc "ModuleA.hs" "haskell" contentA
let contentB = T.unlines
[ "module ModuleB where"
, "import ModuleA"
]
_ <- createDoc "ModuleB.hs" "haskell" contentB
let change = TextDocumentContentChangeEvent
{ _range = Just (Range (Position 0 0) (Position 0 20))
, _rangeLength = Nothing
, _text = ""
}
changeDoc docA [change]
expectDiagnostics [("ModuleB.hs", [(DsError, (1, 0), "Could not find module")])]
, testSessionWait "add missing module" $ do
let contentB = T.unlines
[ "module ModuleB where"
, "import ModuleA ()"
]
_ <- createDoc "ModuleB.hs" "haskell" contentB
expectDiagnostics [("ModuleB.hs", [(DsError, (1, 7), "Could not find module")])]
let contentA = T.unlines [ "module ModuleA where" ]
_ <- createDoc "ModuleA.hs" "haskell" contentA
expectDiagnostics [("ModuleB.hs", [])]
, ignoreInWindowsBecause "Broken in windows" $ testSessionWait "add missing module (non workspace)" $ do
-- need to canonicalize in Mac Os
tmpDir <- liftIO $ canonicalizePath =<< getTemporaryDirectory
let contentB = T.unlines
[ "module ModuleB where"
, "import ModuleA ()"
]
_ <- createDoc (tmpDir </> "ModuleB.hs") "haskell" contentB
expectDiagnostics [(tmpDir </> "ModuleB.hs", [(DsError, (1, 7), "Could not find module")])]
let contentA = T.unlines [ "module ModuleA where" ]
_ <- createDoc (tmpDir </> "ModuleA.hs") "haskell" contentA
expectDiagnostics [(tmpDir </> "ModuleB.hs", [])]
, testSessionWait "cyclic module dependency" $ do
let contentA = T.unlines
[ "module ModuleA where"
, "import ModuleB"
]
let contentB = T.unlines
[ "module ModuleB where"
, "import ModuleA"
]
_ <- createDoc "ModuleA.hs" "haskell" contentA
_ <- createDoc "ModuleB.hs" "haskell" contentB
expectDiagnostics
[ ( "ModuleA.hs"
, [(DsError, (1, 7), "Cyclic module dependency between ModuleA, ModuleB")]
)
, ( "ModuleB.hs"
, [(DsError, (1, 7), "Cyclic module dependency between ModuleA, ModuleB")]
)
]
, testSessionWait "cyclic module dependency with hs-boot" $ do
let contentA = T.unlines
[ "module ModuleA where"
, "import {-# SOURCE #-} ModuleB"
]
let contentB = T.unlines
[ "{-# OPTIONS -Wmissing-signatures#-}"
, "module ModuleB where"
, "import ModuleA"
-- introduce an artificial diagnostic
, "foo = ()"
]
let contentBboot = T.unlines
[ "module ModuleB where"
]
_ <- createDoc "ModuleA.hs" "haskell" contentA
_ <- createDoc "ModuleB.hs" "haskell" contentB
_ <- createDoc "ModuleB.hs-boot" "haskell" contentBboot
expectDiagnostics [("ModuleB.hs", [(DsWarning, (3,0), "Top-level binding")])]
, testSessionWait "correct reference used with hs-boot" $ do
let contentB = T.unlines
[ "module ModuleB where"
, "import {-# SOURCE #-} ModuleA()"
]
let contentA = T.unlines
[ "module ModuleA where"
, "import ModuleB()"
, "x = 5"
]
let contentAboot = T.unlines
[ "module ModuleA where"
]
let contentC = T.unlines
[ "{-# OPTIONS -Wmissing-signatures #-}"
, "module ModuleC where"
, "import ModuleA"
-- this reference will fail if it gets incorrectly
-- resolved to the hs-boot file
, "y = x"
]
_ <- createDoc "ModuleB.hs" "haskell" contentB
_ <- createDoc "ModuleA.hs" "haskell" contentA
_ <- createDoc "ModuleA.hs-boot" "haskell" contentAboot
_ <- createDoc "ModuleC.hs" "haskell" contentC
expectDiagnostics [("ModuleC.hs", [(DsWarning, (3,0), "Top-level binding")])]
, testSessionWait "redundant import" $ do
let contentA = T.unlines ["module ModuleA where"]
let contentB = T.unlines
[ "{-# OPTIONS_GHC -Wunused-imports #-}"
, "module ModuleB where"
, "import ModuleA"
]
_ <- createDoc "ModuleA.hs" "haskell" contentA
_ <- createDoc "ModuleB.hs" "haskell" contentB
expectDiagnosticsWithTags
[ ( "ModuleB.hs"
, [(DsWarning, (2, 0), "The import of 'ModuleA' is redundant", Just DtUnnecessary)]
)
]
, testSessionWait "redundant import even without warning" $ do
let contentA = T.unlines ["module ModuleA where"]
let contentB = T.unlines
[ "{-# OPTIONS_GHC -Wno-unused-imports -Wmissing-signatures #-}"
, "module ModuleB where"
, "import ModuleA"
-- introduce an artificial warning for testing purposes
, "foo = ()"
]
_ <- createDoc "ModuleA.hs" "haskell" contentA
_ <- createDoc "ModuleB.hs" "haskell" contentB
expectDiagnostics [("ModuleB.hs", [(DsWarning, (3,0), "Top-level binding")])]
, testSessionWait "package imports" $ do
let thisDataListContent = T.unlines
[ "module Data.List where"
, "x :: Integer"
, "x = 123"
]
let mainContent = T.unlines
[ "{-# LANGUAGE PackageImports #-}"
, "module Main where"
, "import qualified \"this\" Data.List as ThisList"
, "import qualified \"base\" Data.List as BaseList"
, "useThis = ThisList.x"
, "useBase = BaseList.map"
, "wrong1 = ThisList.map"
, "wrong2 = BaseList.x"
]
_ <- createDoc "Data/List.hs" "haskell" thisDataListContent
_ <- createDoc "Main.hs" "haskell" mainContent
expectDiagnostics
[ ( "Main.hs"
, [(DsError, (6, 9), "Not in scope: \8216ThisList.map\8217")
,(DsError, (7, 9), "Not in scope: \8216BaseList.x\8217")
]
)
]
, testSessionWait "unqualified warnings" $ do
let fooContent = T.unlines
[ "{-# OPTIONS_GHC -Wredundant-constraints #-}"
, "module Foo where"
, "foo :: Ord a => a -> Int"
, "foo _a = 1"
]
_ <- createDoc "Foo.hs" "haskell" fooContent
expectDiagnostics
[ ( "Foo.hs"
-- The test is to make sure that warnings contain unqualified names
-- where appropriate. The warning should use an unqualified name 'Ord', not
-- sometihng like 'GHC.Classes.Ord'. The choice of redundant-constraints to
-- test this is fairly arbitrary.
, [(DsWarning, (2, 0), "Redundant constraint: Ord a")
]
)
]
, testSessionWait "lower-case drive" $ do
let aContent = T.unlines
[ "module A.A where"
, "import A.B ()"
]
bContent = T.unlines
[ "{-# OPTIONS_GHC -Wall #-}"
, "module A.B where"
, "import Data.List"
]
uriB <- getDocUri "A/B.hs"
Just pathB <- pure $ uriToFilePath uriB
uriB <- pure $
let (drive, suffix) = splitDrive pathB
in filePathToUri (joinDrive (lower drive) suffix)
liftIO $ createDirectoryIfMissing True (takeDirectory pathB)
liftIO $ writeFileUTF8 pathB $ T.unpack bContent
uriA <- getDocUri "A/A.hs"
Just pathA <- pure $ uriToFilePath uriA
uriA <- pure $
let (drive, suffix) = splitDrive pathA
in filePathToUri (joinDrive (lower drive) suffix)
let itemA = TextDocumentItem uriA "haskell" 0 aContent
let a = TextDocumentIdentifier uriA
sendNotification STextDocumentDidOpen (DidOpenTextDocumentParams itemA)
NotificationMessage{_params = PublishDiagnosticsParams fileUri _ diags} <- skipManyTill anyMessage diagnostic
-- Check that if we put a lower-case drive in for A.A
-- the diagnostics for A.B will also be lower-case.
liftIO $ fileUri @?= uriB
let msg = _message (head (toList diags) :: Diagnostic)
liftIO $ unless ("redundant" `T.isInfixOf` msg) $
assertFailure ("Expected redundant import but got " <> T.unpack msg)
closeDoc a
, testSessionWait "haddock parse error" $ do
let fooContent = T.unlines
[ "module Foo where"
, "foo :: Int"
, "foo = 1 {-|-}"
]
_ <- createDoc "Foo.hs" "haskell" fooContent
if ghcVersion >= GHC90 then
-- Haddock parse errors are ignored on ghc-9.0.1
pure ()
else
expectDiagnostics
[ ( "Foo.hs"
, [(DsWarning, (2, 8), "Haddock parse error on input")]
)
]
, testSessionWait "strip file path" $ do
let
name = "Testing"
content = T.unlines
[ "module " <> name <> " where"
, "value :: Maybe ()"
, "value = [()]"
]
_ <- createDoc (T.unpack name <> ".hs") "haskell" content
notification <- skipManyTill anyMessage diagnostic
let
offenders =
Lsp.params .
Lsp.diagnostics .
Lens.folded .
Lsp.message .
Lens.filtered (T.isInfixOf ("/" <> name <> ".hs:"))
failure msg = liftIO $ assertFailure $ "Expected file path to be stripped but got " <> T.unpack msg
Lens.mapMOf_ offenders failure notification
, testSession' "-Werror in cradle is ignored" $ \sessionDir -> do
liftIO $ writeFile (sessionDir </> "hie.yaml")
"cradle: {direct: {arguments: [\"-Wall\", \"-Werror\"]}}"
let fooContent = T.unlines
[ "module Foo where"
, "foo = ()"
]
_ <- createDoc "Foo.hs" "haskell" fooContent
expectDiagnostics
[ ( "Foo.hs"
, [(DsWarning, (1, 0), "Top-level binding with no type signature:")
]
)
]
, testSessionWait "-Werror in pragma is ignored" $ do
let fooContent = T.unlines
[ "{-# OPTIONS_GHC -Wall -Werror #-}"
, "module Foo() where"
, "foo :: Int"
, "foo = 1"
]
_ <- createDoc "Foo.hs" "haskell" fooContent
expectDiagnostics
[ ( "Foo.hs"
, [(DsWarning, (3, 0), "Defined but not used:")
]
)
]
, testCase "typecheck-all-parents-of-interest" $ runWithExtraFiles "recomp" $ \dir -> do
let bPath = dir </> "B.hs"
pPath = dir </> "P.hs"
aPath = dir </> "A.hs"
bSource <- liftIO $ readFileUtf8 bPath -- y :: Int
pSource <- liftIO $ readFileUtf8 pPath -- bar = x :: Int
aSource <- liftIO $ readFileUtf8 aPath -- x = y :: Int
bdoc <- createDoc bPath "haskell" bSource
_pdoc <- createDoc pPath "haskell" pSource
expectDiagnostics
[("P.hs", [(DsWarning,(4,0), "Top-level binding")])] -- So that we know P has been loaded
-- Change y from Int to B which introduces a type error in A (imported from P)
changeDoc bdoc [TextDocumentContentChangeEvent Nothing Nothing $
T.unlines ["module B where", "y :: Bool", "y = undefined"]]
expectDiagnostics
[("A.hs", [(DsError, (5, 4), "Couldn't match expected type 'Int' with actual type 'Bool'")])
]
-- Open A and edit to fix the type error
adoc <- createDoc aPath "haskell" aSource
changeDoc adoc [TextDocumentContentChangeEvent Nothing Nothing $
T.unlines ["module A where", "import B", "x :: Bool", "x = y"]]
expectDiagnostics
[ ( "P.hs",
[ (DsError, (4, 6), "Couldn't match expected type 'Int' with actual type 'Bool'"),
(DsWarning, (4, 0), "Top-level binding")
]
),
("A.hs", [])
]
expectNoMoreDiagnostics 1
, testSessionWait "deduplicate missing module diagnostics" $ do
let fooContent = T.unlines [ "module Foo() where" , "import MissingModule" ]
doc <- createDoc "Foo.hs" "haskell" fooContent
expectDiagnostics [("Foo.hs", [(DsError, (1,7), "Could not find module 'MissingModule'")])]
changeDoc doc [TextDocumentContentChangeEvent Nothing Nothing "module Foo() where" ]
expectDiagnostics []
changeDoc doc [TextDocumentContentChangeEvent Nothing Nothing $ T.unlines
[ "module Foo() where" , "import MissingModule" ] ]
expectDiagnostics [("Foo.hs", [(DsError, (1,7), "Could not find module 'MissingModule'")])]
, testGroup "Cancellation"
[ cancellationTestGroup "edit header" editHeader yesDepends yesSession noParse noTc
, cancellationTestGroup "edit import" editImport noDepends noSession yesParse noTc
, cancellationTestGroup "edit body" editBody yesDepends yesSession yesParse yesTc
]
]
where
editPair x y = let p = Position x y ; p' = Position x (y+2) in
(TextDocumentContentChangeEvent {_range=Just (Range p p), _rangeLength=Nothing, _text="fd"}
,TextDocumentContentChangeEvent {_range=Just (Range p p'), _rangeLength=Nothing, _text=""})
editHeader = editPair 0 0
editImport = editPair 2 10
editBody = editPair 3 10
noParse = False
yesParse = True
noDepends = False
yesDepends = True
noSession = False
yesSession = True
noTc = False
yesTc = True
cancellationTestGroup :: TestName -> (TextDocumentContentChangeEvent, TextDocumentContentChangeEvent) -> Bool -> Bool -> Bool -> Bool -> TestTree
cancellationTestGroup name edits dependsOutcome sessionDepsOutcome parseOutcome tcOutcome = testGroup name
[ cancellationTemplate edits Nothing
, cancellationTemplate edits $ Just ("GetFileContents", True)
, cancellationTemplate edits $ Just ("GhcSession", True)
-- the outcome for GetModSummary is always True because parseModuleHeader never fails (!)
, cancellationTemplate edits $ Just ("GetModSummary", True)
, cancellationTemplate edits $ Just ("GetModSummaryWithoutTimestamps", True)
-- getLocatedImports never fails
, cancellationTemplate edits $ Just ("GetLocatedImports", True)
, cancellationTemplate edits $ Just ("GetDependencies", dependsOutcome)
, cancellationTemplate edits $ Just ("GhcSessionDeps", sessionDepsOutcome)
, cancellationTemplate edits $ Just ("GetParsedModule", parseOutcome)
, cancellationTemplate edits $ Just ("TypeCheck", tcOutcome)
, cancellationTemplate edits $ Just ("GetHieAst", tcOutcome)
]
cancellationTemplate :: (TextDocumentContentChangeEvent, TextDocumentContentChangeEvent) -> Maybe (String, Bool) -> TestTree
cancellationTemplate (edit, undoEdit) mbKey = testCase (maybe "-" fst mbKey) $ runTestNoKick $ do
doc <- createDoc "Foo.hs" "haskell" $ T.unlines
[ "{-# OPTIONS_GHC -Wall #-}"
, "module Foo where"
, "import Data.List()"
, "f0 x = (x,x)"
]
-- for the example above we expect one warning
let missingSigDiags = [(DsWarning, (3, 0), "Top-level binding") ]
typeCheck doc >> expectCurrentDiagnostics doc missingSigDiags
-- Now we edit the document and wait for the given key (if any)
changeDoc doc [edit]
whenJust mbKey $ \(key, expectedResult) -> do
Right WaitForIdeRuleResult{ideResultSuccess} <- waitForAction key doc
liftIO $ ideResultSuccess @?= expectedResult
-- The 2nd edit cancels the active session and unbreaks the file
-- wait for typecheck and check that the current diagnostics are accurate
changeDoc doc [undoEdit]
typeCheck doc >> expectCurrentDiagnostics doc missingSigDiags
expectNoMoreDiagnostics 0.5
where
-- similar to run except it disables kick
runTestNoKick s = withTempDir $ \dir -> runInDir' dir "." "." ["--test-no-kick"] s
typeCheck doc = do
Right WaitForIdeRuleResult {..} <- waitForAction "TypeCheck" doc
liftIO $ assertBool "The file should typecheck" ideResultSuccess
-- wait for the debouncer to publish diagnostics if the rule runs
liftIO $ sleep 0.2
-- flush messages to ensure current diagnostics state is updated
flushMessages
codeActionTests :: TestTree
codeActionTests = testGroup "code actions"
[ insertImportTests
, extendImportTests
, renameActionTests
, typeWildCardActionTests
, removeImportTests
, suggestImportClassMethodTests
, suggestImportTests
, suggestHideShadowTests
, suggestImportDisambiguationTests
, fixConstructorImportTests
, importRenameActionTests
, fillTypedHoleTests
, addSigActionTests
, insertNewDefinitionTests
, deleteUnusedDefinitionTests
, addInstanceConstraintTests
, addFunctionConstraintTests
, removeRedundantConstraintsTests
, addTypeAnnotationsToLiteralsTest
, exportUnusedTests
, addImplicitParamsConstraintTests
, removeExportTests
]
codeActionHelperFunctionTests :: TestTree
codeActionHelperFunctionTests = testGroup "code action helpers"
[
extendImportTestsRegEx
]
codeLensesTests :: TestTree
codeLensesTests = testGroup "code lenses"
[ addSigLensesTests
]
watchedFilesTests :: TestTree
watchedFilesTests = testGroup "watched files"
[ testSession' "workspace files" $ \sessionDir -> do
liftIO $ writeFile (sessionDir </> "hie.yaml") "cradle: {direct: {arguments: [\"-isrc\", \"A\", \"WatchedFilesMissingModule\"]}}"
_doc <- createDoc "A.hs" "haskell" "{-#LANGUAGE NoImplicitPrelude #-}\nmodule A where\nimport WatchedFilesMissingModule"
watchedFileRegs <- getWatchedFilesSubscriptionsUntil STextDocumentPublishDiagnostics
-- Expect 2 subscriptions: one for all .hs files and one for the hie.yaml cradle
liftIO $ length watchedFileRegs @?= 2
, testSession' "non workspace file" $ \sessionDir -> do
tmpDir <- liftIO getTemporaryDirectory
let yaml = "cradle: {direct: {arguments: [\"-i" <> tail(init(show tmpDir)) <> "\", \"A\", \"WatchedFilesMissingModule\"]}}"
liftIO $ writeFile (sessionDir </> "hie.yaml") yaml
_doc <- createDoc "A.hs" "haskell" "{-# LANGUAGE NoImplicitPrelude#-}\nmodule A where\nimport WatchedFilesMissingModule"
watchedFileRegs <- getWatchedFilesSubscriptionsUntil STextDocumentPublishDiagnostics
-- Expect 2 subscriptions: one for all .hs files and one for the hie.yaml cradle
liftIO $ length watchedFileRegs @?= 2
-- TODO add a test for didChangeWorkspaceFolder
]
insertImportTests :: TestTree
insertImportTests = testGroup "insert import"
[ checkImport "above comment at top of module" "CommentAtTop.hs" "CommentAtTop.expected.hs" "import Data.Monoid"
, checkImport "above multiple comments below" "CommentAtTopMultipleComments.hs" "CommentAtTopMultipleComments.expected.hs" "import Data.Monoid"
, checkImport "above curly brace comment" "CommentCurlyBraceAtTop.hs" "CommentCurlyBraceAtTop.expected.hs" "import Data.Monoid"
, checkImport "above multi-line comment" "MultiLineCommentAtTop.hs" "MultiLineCommentAtTop.expected.hs" "import Data.Monoid"
, checkImport "above comment with no module explicit exports" "NoExplicitExportCommentAtTop.hs" "NoExplicitExportCommentAtTop.expected.hs" "import Data.Monoid"
, checkImport "above two-dash comment with no pipe" "TwoDashOnlyComment.hs" "TwoDashOnlyComment.expected.hs" "import Data.Monoid"
, checkImport "above comment with no (module .. where) decl" "NoModuleDeclarationCommentAtTop.hs" "NoModuleDeclarationCommentAtTop.expected.hs" "import Data.Monoid"
, checkImport "comment not at top with no (module .. where) decl" "NoModuleDeclaration.hs" "NoModuleDeclaration.expected.hs" "import Data.Monoid"
, checkImport "comment not at top (data dec is)" "DataAtTop.hs" "DataAtTop.expected.hs" "import Data.Monoid"
, checkImport "comment not at top (newtype is)" "NewTypeAtTop.hs" "NewTypeAtTop.expected.hs" "import Data.Monoid"
, checkImport "with no explicit module exports" "NoExplicitExports.hs" "NoExplicitExports.expected.hs" "import Data.Monoid"
, checkImport "add to correctly placed exisiting import" "ImportAtTop.hs" "ImportAtTop.expected.hs" "import Data.Monoid"
, checkImport "add to multiple correctly placed exisiting imports" "MultipleImportsAtTop.hs" "MultipleImportsAtTop.expected.hs" "import Data.Monoid"
, checkImport "with language pragma at top of module" "LangPragmaModuleAtTop.hs" "LangPragmaModuleAtTop.expected.hs" "import Data.Monoid"
, checkImport "with language pragma and explicit module exports" "LangPragmaModuleWithComment.hs" "LangPragmaModuleWithComment.expected.hs" "import Data.Monoid"
, checkImport "with language pragma at top and no module declaration" "LanguagePragmaAtTop.hs" "LanguagePragmaAtTop.expected.hs" "import Data.Monoid"
, checkImport "with multiple lang pragmas and no module declaration" "MultipleLanguagePragmasNoModuleDeclaration.hs" "MultipleLanguagePragmasNoModuleDeclaration.expected.hs" "import Data.Monoid"
, checkImport "with pragmas and shebangs" "LanguagePragmasThenShebangs.hs" "LanguagePragmasThenShebangs.expected.hs" "import Data.Monoid"
, checkImport "with pragmas and shebangs but no comment at top" "PragmasAndShebangsNoComment.hs" "PragmasAndShebangsNoComment.expected.hs" "import Data.Monoid"
, checkImport "module decl no exports under pragmas and shebangs" "PragmasShebangsAndModuleDecl.hs" "PragmasShebangsAndModuleDecl.expected.hs" "import Data.Monoid"
, checkImport "module decl with explicit import under pragmas and shebangs" "PragmasShebangsModuleExplicitExports.hs" "PragmasShebangsModuleExplicitExports.expected.hs" "import Data.Monoid"
, checkImport "module decl and multiple imports" "ModuleDeclAndImports.hs" "ModuleDeclAndImports.expected.hs" "import Data.Monoid"
]
checkImport :: String -> FilePath -> FilePath -> T.Text -> TestTree
checkImport testComment originalPath expectedPath action =
testSessionWithExtraFiles "import-placement" testComment $ \dir ->
check (dir </> originalPath) (dir </> expectedPath) action
where
check :: FilePath -> FilePath -> T.Text -> Session ()
check originalPath expectedPath action = do
oSrc <- liftIO $ readFileUtf8 originalPath
eSrc <- liftIO $ readFileUtf8 expectedPath
originalDoc <- createDoc originalPath "haskell" oSrc
_ <- waitForDiagnostics
shouldBeDoc <- createDoc expectedPath "haskell" eSrc
actionsOrCommands <- getAllCodeActions originalDoc
chosenAction <- liftIO $ pickActionWithTitle action actionsOrCommands
executeCodeAction chosenAction
originalDocAfterAction <- documentContents originalDoc
shouldBeDocContents <- documentContents shouldBeDoc
liftIO $ T.replace "\r\n" "\n" shouldBeDocContents @=? T.replace "\r\n" "\n" originalDocAfterAction
renameActionTests :: TestTree
renameActionTests = testGroup "rename actions"
[ testSession "change to local variable name" $ do
let content = T.unlines
[ "module Testing where"
, "foo :: Int -> Int"
, "foo argName = argNme"
]
doc <- createDoc "Testing.hs" "haskell" content
_ <- waitForDiagnostics
action <- findCodeAction doc (Range (Position 2 14) (Position 2 20)) "Replace with ‘argName’"
executeCodeAction action
contentAfterAction <- documentContents doc
let expectedContentAfterAction = T.unlines
[ "module Testing where"
, "foo :: Int -> Int"
, "foo argName = argName"
]
liftIO $ expectedContentAfterAction @=? contentAfterAction
, testSession "change to name of imported function" $ do
let content = T.unlines
[ "module Testing where"
, "import Data.Maybe (maybeToList)"
, "foo :: Maybe a -> [a]"
, "foo = maybToList"
]
doc <- createDoc "Testing.hs" "haskell" content
_ <- waitForDiagnostics
action <- findCodeAction doc (Range (Position 3 6) (Position 3 16)) "Replace with ‘maybeToList’"
executeCodeAction action
contentAfterAction <- documentContents doc
let expectedContentAfterAction = T.unlines
[ "module Testing where"
, "import Data.Maybe (maybeToList)"
, "foo :: Maybe a -> [a]"
, "foo = maybeToList"
]
liftIO $ expectedContentAfterAction @=? contentAfterAction
, testSession "suggest multiple local variable names" $ do
let content = T.unlines
[ "module Testing where"
, "foo :: Char -> Char -> Char -> Char"
, "foo argument1 argument2 argument3 = argumentX"
]
doc <- createDoc "Testing.hs" "haskell" content
_ <- waitForDiagnostics
_ <- findCodeActions doc (Range (Position 2 36) (Position 2 45))
["Replace with ‘argument1’", "Replace with ‘argument2’", "Replace with ‘argument3’"]
return()
, testSession "change infix function" $ do
let content = T.unlines
[ "module Testing where"
, "monus :: Int -> Int"
, "monus x y = max 0 (x - y)"
, "foo x y = x `monnus` y"
]
doc <- createDoc "Testing.hs" "haskell" content
_ <- waitForDiagnostics
actionsOrCommands <- getCodeActions doc (Range (Position 3 12) (Position 3 20))
[fixTypo] <- pure [action | InR action@CodeAction{ _title = actionTitle } <- actionsOrCommands, "monus" `T.isInfixOf` actionTitle ]
executeCodeAction fixTypo
contentAfterAction <- documentContents doc
let expectedContentAfterAction = T.unlines
[ "module Testing where"
, "monus :: Int -> Int"
, "monus x y = max 0 (x - y)"
, "foo x y = x `monus` y"
]
liftIO $ expectedContentAfterAction @=? contentAfterAction
]
typeWildCardActionTests :: TestTree
typeWildCardActionTests = testGroup "type wildcard actions"
[ testSession "global signature" $ do
let content = T.unlines
[ "module Testing where"
, "func :: _"
, "func x = x"
]
doc <- createDoc "Testing.hs" "haskell" content
_ <- waitForDiagnostics
actionsOrCommands <- getAllCodeActions doc
let [addSignature] = [action | InR action@CodeAction { _title = actionTitle } <- actionsOrCommands
, "Use type signature" `T.isInfixOf` actionTitle
]
executeCodeAction addSignature
contentAfterAction <- documentContents doc
let expectedContentAfterAction = T.unlines
[ "module Testing where"
, "func :: (p -> p)"
, "func x = x"
]
liftIO $ expectedContentAfterAction @=? contentAfterAction
, testSession "multi-line message" $ do
let content = T.unlines
[ "module Testing where"
, "func :: _"
, "func x y = x + y"
]
doc <- createDoc "Testing.hs" "haskell" content
_ <- waitForDiagnostics
actionsOrCommands <- getAllCodeActions doc
let [addSignature] = [action | InR action@CodeAction { _title = actionTitle } <- actionsOrCommands
, "Use type signature" `T.isInfixOf` actionTitle
]
executeCodeAction addSignature
contentAfterAction <- documentContents doc
let expectedContentAfterAction = T.unlines
[ "module Testing where"
, "func :: (Integer -> Integer -> Integer)"
, "func x y = x + y"
]
liftIO $ expectedContentAfterAction @=? contentAfterAction
, testSession "local signature" $ do
let content = T.unlines
[ "module Testing where"
, "func :: Int -> Int"
, "func x ="
, " let y :: _"
, " y = x * 2"
, " in y"
]
doc <- createDoc "Testing.hs" "haskell" content
_ <- waitForDiagnostics
actionsOrCommands <- getAllCodeActions doc
let [addSignature] = [action | InR action@CodeAction { _title = actionTitle } <- actionsOrCommands
, "Use type signature" `T.isInfixOf` actionTitle
]
executeCodeAction addSignature
contentAfterAction <- documentContents doc
let expectedContentAfterAction = T.unlines
[ "module Testing where"
, "func :: Int -> Int"
, "func x ="
, " let y :: (Int)"
, " y = x * 2"
, " in y"
]
liftIO $ expectedContentAfterAction @=? contentAfterAction
]
{-# HLINT ignore "Use nubOrd" #-}
removeImportTests :: TestTree
removeImportTests = testGroup "remove import actions"
[ testSession "redundant" $ do
let contentA = T.unlines
[ "module ModuleA where"
]
_docA <- createDoc "ModuleA.hs" "haskell" contentA
let contentB = T.unlines
[ "{-# OPTIONS_GHC -Wunused-imports #-}"
, "module ModuleB where"
, "import ModuleA"
, "stuffB :: Integer"
, "stuffB = 123"
]
docB <- createDoc "ModuleB.hs" "haskell" contentB
_ <- waitForDiagnostics
[InR action@CodeAction { _title = actionTitle }, _]
<- getCodeActions docB (Range (Position 2 0) (Position 2 5))
liftIO $ "Remove import" @=? actionTitle
executeCodeAction action