X-Git-Url: http://git.lukelau.me/?p=lsp-test.git;a=blobdiff_plain;f=src%2FLanguage%2FHaskell%2FLSP%2FTest.hs;h=1b2e7ba867a6ebc4356b008e29a7c4ce53eee962;hp=c5090f939c8c669f44e65a5d04d698d2bb7a6350;hb=f0a961503e19c2d281c3d6319df1096f5bf6cfcf;hpb=b39cc258cdffae26e2a783470995df73e4099070 diff --git a/src/Language/Haskell/LSP/Test.hs b/src/Language/Haskell/LSP/Test.hs index c5090f9..1b2e7ba 100644 --- a/src/Language/Haskell/LSP/Test.hs +++ b/src/Language/Haskell/LSP/Test.hs @@ -3,47 +3,47 @@ {-# LANGUAGE ScopedTypeVariables #-} {-# LANGUAGE ExistentialQuantification #-} --- | --- Module : Language.Haskell.LSP.Test --- Description : A functional testing framework for LSP servers. --- Maintainer : luke_lau@icloud.com --- Stability : experimental --- --- A framework for testing at the JSON level. - +{-| +Module : Language.Haskell.LSP.Test +Description : A functional testing framework for LSP servers. +Maintainer : luke_lau@icloud.com +Stability : experimental +Portability : POSIX + +Provides the framework to start functionally testing +. +You should import "Language.Haskell.LSP.Types" alongside this. +-} module Language.Haskell.LSP.Test ( -- * Sessions - runSession - , runSessionWithHandles + Session + , runSession + -- ** Config , runSessionWithConfig - , Session , SessionConfig(..) - , SessionException(..) - , anySessionException + , defaultConfig + , C.fullCaps + -- ** Exceptions + , module Language.Haskell.LSP.Test.Exceptions , withTimeout -- * Sending + , request + , request_ , sendRequest - , sendRequest_ - , sendRequest' , sendNotification - , sendRequestMessage - , sendNotification' , sendResponse -- * Receving - , message - , anyRequest - , anyResponse - , anyNotification - , anyMessage - , loggingNotification - , publishDiagnosticsNotification - -- * Combinators - , satisfy + , module Language.Haskell.LSP.Test.Parsing -- * Utilities + -- | Quick helper functions for common tasks. + -- ** Initialization , initializeResponse -- ** Documents , openDoc + , openDoc' + , closeDoc + , changeDoc , documentContents , getDocumentEdit , getDocUri @@ -54,19 +54,33 @@ module Language.Haskell.LSP.Test , waitForDiagnostics , waitForDiagnosticsSource , noDiagnostics + , getCurrentDiagnostics -- ** Commands , executeCommand -- ** Code Actions + , getCodeActions , getAllCodeActions , executeCodeAction -- ** Completions , getCompletions -- ** References , getReferences + -- ** Definitions + , getDefinitions + , getTypeDefinitions -- ** Renaming , rename + -- ** Hover + , getHover + -- ** Highlights + , getHighlights + -- ** Formatting + , formatDoc + , formatRange -- ** Edits , applyEdit + -- ** Code lenses + , getCodeLenses ) where import Control.Applicative.Combinators @@ -82,9 +96,11 @@ import Data.Default import qualified Data.HashMap.Strict as HashMap import qualified Data.Map as Map import Data.Maybe -import Language.Haskell.LSP.Types hiding (id, capabilities, message) -import qualified Language.Haskell.LSP.Types as LSP -import qualified Language.Haskell.LSP.Types.Capabilities as LSP +import Language.Haskell.LSP.Types +import Language.Haskell.LSP.Types.Lens hiding + (id, capabilities, message, executeCommand, applyEdit, rename) +import qualified Language.Haskell.LSP.Types.Lens as LSP +import qualified Language.Haskell.LSP.Types.Capabilities as C import Language.Haskell.LSP.Messages import Language.Haskell.LSP.VFS import Language.Haskell.LSP.Test.Compat @@ -96,22 +112,31 @@ import Language.Haskell.LSP.Test.Server import System.IO import System.Directory import System.FilePath -import qualified Yi.Rope as Rope +import qualified Data.Rope.UTF16 as Rope -- | Starts a new session. +-- +-- > runSession "hie" fullCaps "path/to/root/dir" $ do +-- > doc <- openDoc "Desktop/simple.hs" "haskell" +-- > diags <- waitForDiagnostics +-- > let pos = Position 12 5 +-- > params = TextDocumentPositionParams doc +-- > hover <- request TextDocumentHover params runSession :: String -- ^ The command to run the server. + -> C.ClientCapabilities -- ^ The capabilities that the client should declare. -> FilePath -- ^ The filepath to the root directory for the session. -> Session a -- ^ The session to run. -> IO a runSession = runSessionWithConfig def --- | Starts a new sesion with a client with the specified capabilities. -runSessionWithConfig :: SessionConfig -- ^ The capabilities the client should have. +-- | Starts a new sesion with a custom configuration. +runSessionWithConfig :: SessionConfig -- ^ Configuration options for the session. -> String -- ^ The command to run the server. + -> C.ClientCapabilities -- ^ The capabilities that the client should declare. -> FilePath -- ^ The filepath to the root directory for the session. -> Session a -- ^ The session to run. -> IO a -runSessionWithConfig config serverExe rootDir session = do +runSessionWithConfig config serverExe caps rootDir session = do pid <- getCurrentProcessID absRootDir <- canonicalizePath rootDir @@ -119,30 +144,34 @@ runSessionWithConfig config serverExe rootDir session = do (Just $ T.pack absRootDir) (Just $ filePathToUri absRootDir) Nothing - (capabilities config) + caps (Just TraceOff) - withServer serverExe (logStdErr config) $ \serverIn serverOut _ -> - runSessionWithHandles serverIn serverOut listenServer config rootDir $ do - + Nothing + withServer serverExe (logStdErr config) $ \serverIn serverOut serverProc -> + runSessionWithHandles serverIn serverOut serverProc listenServer config caps rootDir exitServer $ do -- Wrap the session around initialize and shutdown calls - initRspMsg <- sendRequest Initialize initializeParams :: Session InitializeResponse + initRspMsg <- request Initialize initializeParams :: Session InitializeResponse liftIO $ maybe (return ()) (putStrLn . ("Error while initializing: " ++) . show ) (initRspMsg ^. LSP.error) initRspVar <- initRsp <$> ask liftIO $ putMVar initRspVar initRspMsg - sendNotification Initialized InitializedParams + case lspConfig config of + Just cfg -> sendNotification WorkspaceDidChangeConfiguration (DidChangeConfigurationParams cfg) + Nothing -> return () + -- Run the actual test result <- session - - sendNotification Exit ExitParams - return result where - -- | Listens to the server output, makes sure it matches the record and - -- signals any semaphores + -- | Asks the server to shutdown and exit politely + exitServer :: Session () + exitServer = request_ Shutdown (Nothing :: Maybe Value) >> sendNotification Exit ExitParams + + -- | Listens to the server output until the shutdown ack, + -- makes sure it matches the record and signals any semaphores listenServer :: Handle -> SessionContext -> IO () listenServer serverOut context = do msgBytes <- getNextMessage serverOut @@ -152,13 +181,15 @@ runSessionWithConfig config serverExe rootDir session = do let msg = decodeFromServerMsg reqMap msgBytes writeChan (messageChan context) (ServerMessage msg) - listenServer serverOut context + case msg of + (RspShutdown _) -> return () + _ -> listenServer serverOut context -- | The current text contents of a document. documentContents :: TextDocumentIdentifier -> Session T.Text documentContents doc = do vfs <- vfs <$> get - let file = vfs Map.! (doc ^. uri) + let file = vfs Map.! toNormalizedUri (doc ^. uri) return $ Rope.toText $ Language.Haskell.LSP.VFS._text file -- | Parses an ApplyEditRequest, checks that it is for the passed document @@ -185,25 +216,25 @@ getDocumentEdit doc = do in maybe False (HashMap.member (doc ^. uri)) mMap -- | Sends a request to the server and waits for its response. +-- Will skip any messages in between the request and the response -- @ --- rsp <- sendRequest TextDocumentDocumentSymbol params :: Session DocumentSymbolsResponse +-- rsp <- request TextDocumentDocumentSymbol params :: Session DocumentSymbolsResponse -- @ -- Note: will skip any messages in between the request and the response. -sendRequest :: (ToJSON params, FromJSON a) => ClientMethod -> params -> Session (ResponseMessage a) -sendRequest m = sendRequest' m >=> skipManyTill anyMessage . responseForId +request :: (ToJSON params, FromJSON a) => ClientMethod -> params -> Session (ResponseMessage a) +request m = sendRequest m >=> skipManyTill anyMessage . responseForId --- | Send a request to the server and wait for its response, --- but discard it. -sendRequest_ :: ToJSON params => ClientMethod -> params -> Session () -sendRequest_ p = void . (sendRequest p :: ToJSON params => params -> Session (ResponseMessage Value)) +-- | The same as 'sendRequest', but discard the response. +request_ :: ToJSON params => ClientMethod -> params -> Session () +request_ p = void . (request p :: ToJSON params => params -> Session (ResponseMessage Value)) --- | Sends a request to the server without waiting on the response. -sendRequest' +-- | Sends a request to the server. Unlike 'request', this doesn't wait for the response. +sendRequest :: ToJSON params => ClientMethod -- ^ The request method. -> params -- ^ The request parameters. -> Session LspId -- ^ The id of the request that was sent. -sendRequest' method params = do +sendRequest method params = do id <- curReqId <$> get modify $ \c -> c { curReqId = nextId id } @@ -231,22 +262,13 @@ instance ToJSON a => ToJSON (RequestMessage' a) where object ["jsonrpc" .= rpc, "id" .= id, "method" .= method, "params" .= params] -sendRequestMessage :: (ToJSON a, ToJSON b) => RequestMessage ClientMethod a b -> Session () -sendRequestMessage req = do - -- Update the request map - reqMap <- requestMap <$> ask - liftIO $ modifyMVar_ reqMap $ - \r -> return $ updateRequestMap r (req ^. LSP.id) (req ^. method) - - sendMessage req - -- | Sends a notification to the server. sendNotification :: ToJSON a => ClientMethod -- ^ The notification method. -> a -- ^ The notification parameters. -> Session () --- | Open a virtual file if we send a did open text document notification +-- Open a virtual file if we send a did open text document notification sendNotification TextDocumentDidOpen params = do let params' = fromJust $ decode $ encode params n :: DidOpenTextDocumentNotification @@ -254,9 +276,9 @@ sendNotification TextDocumentDidOpen params = do oldVFS <- vfs <$> get newVFS <- liftIO $ openVFS oldVFS n modify (\s -> s { vfs = newVFS }) - sendNotification' n + sendMessage n --- | Close a virtual file if we send a close text document notification +-- Close a virtual file if we send a close text document notification sendNotification TextDocumentDidClose params = do let params' = fromJust $ decode $ encode params n :: DidCloseTextDocumentNotification @@ -264,13 +286,20 @@ sendNotification TextDocumentDidClose params = do oldVFS <- vfs <$> get newVFS <- liftIO $ closeVFS oldVFS n modify (\s -> s { vfs = newVFS }) - sendNotification' n + sendMessage n -sendNotification method params = sendNotification' (NotificationMessage "2.0" method params) +sendNotification TextDocumentDidChange params = do + let params' = fromJust $ decode $ encode params + n :: DidChangeTextDocumentNotification + n = NotificationMessage "2.0" TextDocumentDidChange params' + oldVFS <- vfs <$> get + newVFS <- liftIO $ changeFromClientVFS oldVFS n + modify (\s -> s { vfs = newVFS }) + sendMessage n -sendNotification' :: (ToJSON a, ToJSON b) => NotificationMessage a b -> Session () -sendNotification' = sendMessage +sendNotification method params = sendMessage (NotificationMessage "2.0" method params) +-- | Sends a response to the server. sendResponse :: ToJSON a => ResponseMessage a -> Session () sendResponse = sendMessage @@ -283,19 +312,33 @@ initializeResponse = initRsp <$> ask >>= (liftIO . readMVar) -- | Opens a text document and sends a notification to the client. openDoc :: FilePath -> String -> Session TextDocumentIdentifier openDoc file languageId = do - item <- getDocItem file languageId - sendNotification TextDocumentDidOpen (DidOpenTextDocumentParams item) - TextDocumentIdentifier <$> getDocUri file - where - -- | Reads in a text document as the first version. - getDocItem :: FilePath -- ^ The path to the text document to read in. - -> String -- ^ The language ID, e.g "haskell" for .hs files. - -> Session TextDocumentItem - getDocItem file languageId = do context <- ask let fp = rootDir context file contents <- liftIO $ T.readFile fp - return $ TextDocumentItem (filePathToUri fp) (T.pack languageId) 0 contents + openDoc' file languageId contents + +-- | This is a variant of `openDoc` that takes the file content as an argument. +openDoc' :: FilePath -> String -> T.Text -> Session TextDocumentIdentifier +openDoc' file languageId contents = do + context <- ask + let fp = rootDir context file + uri = filePathToUri fp + item = TextDocumentItem uri (T.pack languageId) 0 contents + sendNotification TextDocumentDidOpen (DidOpenTextDocumentParams item) + pure $ TextDocumentIdentifier uri + +-- | Closes a text document and sends a notification to the client. +closeDoc :: TextDocumentIdentifier -> Session () +closeDoc docId = do + let params = DidCloseTextDocumentParams (TextDocumentIdentifier (docId ^. uri)) + sendNotification TextDocumentDidClose params + +-- | Changes a text document and sends a notification to the client +changeDoc :: TextDocumentIdentifier -> [TextDocumentContentChangeEvent] -> Session () +changeDoc docId changes = do + verDoc <- getVersionedDoc docId + let params = DidChangeTextDocumentParams (verDoc & version . non 0 +~ 1) (List changes) + sendNotification TextDocumentDidChange params -- | Gets the Uri for the file corrected to the session directory. getDocUri :: FilePath -> Session Uri @@ -311,6 +354,8 @@ waitForDiagnostics = do let (List diags) = diagsNot ^. params . LSP.diagnostics return diags +-- | The same as 'waitForDiagnostics', but will only match a specific +-- 'Language.Haskell.LSP.Types._source'. waitForDiagnosticsSource :: String -> Session [Diagnostic] waitForDiagnosticsSource src = do diags <- waitForDiagnostics @@ -323,7 +368,7 @@ waitForDiagnosticsSource src = do matches d = d ^. source == Just (T.pack src) -- | Expects a 'PublishDiagnosticsNotification' and throws an --- 'UnexpectedDiagnosticsException' if there are any diagnostics +-- 'UnexpectedDiagnostics' exception if there are any diagnostics -- returned. noDiagnostics :: Session () noDiagnostics = do @@ -331,27 +376,38 @@ noDiagnostics = do when (diagsNot ^. params . LSP.diagnostics /= List []) $ liftIO $ throw UnexpectedDiagnostics -- | Returns the symbols in a document. -getDocumentSymbols :: TextDocumentIdentifier -> Session [SymbolInformation] +getDocumentSymbols :: TextDocumentIdentifier -> Session (Either [DocumentSymbol] [SymbolInformation]) getDocumentSymbols doc = do - ResponseMessage _ rspLid mRes mErr <- sendRequest TextDocumentDocumentSymbol (DocumentSymbolParams doc) + ResponseMessage _ rspLid mRes mErr <- request TextDocumentDocumentSymbol (DocumentSymbolParams doc) :: Session DocumentSymbolsResponse maybe (return ()) (throw . UnexpectedResponseError rspLid) mErr - let (Just (List symbols)) = mRes - return symbols + case mRes of + Just (DSDocumentSymbols (List xs)) -> return (Left xs) + Just (DSSymbolInformation (List xs)) -> return (Right xs) + Nothing -> Prelude.error "No result and no error in DocumentSymbolsResponse" + +-- | Returns the code actions in the specified range. +getCodeActions :: TextDocumentIdentifier -> Range -> Session [CAResult] +getCodeActions doc range = do + ctx <- getCodeActionContext doc + rsp <- request TextDocumentCodeAction (CodeActionParams doc range ctx) + + case rsp ^. result of + Just (List xs) -> return xs + _ -> throw (UnexpectedResponseError (rsp ^. LSP.id) (fromJust $ rsp ^. LSP.error)) -- | Returns all the code actions in a document by -- querying the code actions at each of the current -- diagnostics' positions. -getAllCodeActions :: TextDocumentIdentifier -> Session [CommandOrCodeAction] +getAllCodeActions :: TextDocumentIdentifier -> Session [CAResult] getAllCodeActions doc = do - curDiags <- fromMaybe [] . Map.lookup (doc ^. uri) . curDiagnostics <$> get - let ctx = CodeActionContext (List curDiags) Nothing + ctx <- getCodeActionContext doc - foldM (go ctx) [] curDiags + foldM (go ctx) [] =<< getCurrentDiagnostics doc where - go :: CodeActionContext -> [CommandOrCodeAction] -> Diagnostic -> Session [CommandOrCodeAction] + go :: CodeActionContext -> [CAResult] -> Diagnostic -> Session [CAResult] go ctx acc diag = do - ResponseMessage _ rspLid mRes mErr <- sendRequest TextDocumentCodeAction (CodeActionParams doc (diag ^. range) ctx) + ResponseMessage _ rspLid mRes mErr <- request TextDocumentCodeAction (CodeActionParams doc (diag ^. range) ctx) case mErr of Just e -> throw (UnexpectedResponseError rspLid e) @@ -359,12 +415,22 @@ getAllCodeActions doc = do let Just (List cmdOrCAs) = mRes in return (acc ++ cmdOrCAs) +getCodeActionContext :: TextDocumentIdentifier -> Session CodeActionContext +getCodeActionContext doc = do + curDiags <- getCurrentDiagnostics doc + return $ CodeActionContext (List curDiags) Nothing + +-- | Returns the current diagnostics that have been sent to the client. +-- Note that this does not wait for more to come in. +getCurrentDiagnostics :: TextDocumentIdentifier -> Session [Diagnostic] +getCurrentDiagnostics doc = fromMaybe [] . Map.lookup (toNormalizedUri $ doc ^. uri) . curDiagnostics <$> get + -- | Executes a command. executeCommand :: Command -> Session () executeCommand cmd = do let args = decode $ encode $ fromJust $ cmd ^. arguments execParams = ExecuteCommandParams (cmd ^. command) args - sendRequest_ WorkspaceExecuteCommand execParams + request_ WorkspaceExecuteCommand execParams -- | Executes a code action. -- Matching with the specification, if a code action @@ -386,8 +452,8 @@ getVersionedDoc :: TextDocumentIdentifier -> Session VersionedTextDocumentIdenti getVersionedDoc (TextDocumentIdentifier uri) = do fs <- vfs <$> get let ver = - case fs Map.!? uri of - Just (VirtualFile v _) -> Just v + case fs Map.!? toNormalizedUri uri of + Just (VirtualFile v _ _) -> Just v _ -> Nothing return (VersionedTextDocumentIdentifier uri ver) @@ -397,12 +463,12 @@ applyEdit doc edit = do verDoc <- getVersionedDoc doc - caps <- asks (capabilities . config) + caps <- asks sessionCapabilities let supportsDocChanges = fromMaybe False $ do - let LSP.ClientCapabilities mWorkspace _ _ = caps - LSP.WorkspaceClientCapabilities _ mEdit _ _ _ _ <- mWorkspace - LSP.WorkspaceEditClientCapabilities mDocChanges <- mEdit + let mWorkspace = C._workspace caps + C.WorkspaceClientCapabilities _ mEdit _ _ _ _ _ _ <- mWorkspace + C.WorkspaceEditClientCapabilities mDocChanges <- mEdit mDocChanges let wEdit = if supportsDocChanges @@ -422,7 +488,7 @@ applyEdit doc edit = do -- | Returns the completions for the position in the document. getCompletions :: TextDocumentIdentifier -> Position -> Session [CompletionItem] getCompletions doc pos = do - rsp <- sendRequest TextDocumentCompletion (TextDocumentPositionParams doc pos) + rsp <- request TextDocumentCompletion (TextDocumentPositionParams doc pos) case getResponseResult rsp of Completions (List items) -> return items @@ -436,17 +502,48 @@ getReferences :: TextDocumentIdentifier -- ^ The document to lookup in. getReferences doc pos inclDecl = let ctx = ReferenceContext inclDecl params = ReferenceParams doc pos ctx - in fromMaybe [] . (^. result) <$> sendRequest TextDocumentReferences params - --- ^ Renames the term at the specified position. + in getResponseResult <$> request TextDocumentReferences params + +-- | Returns the definition(s) for the term at the specified position. +getDefinitions :: TextDocumentIdentifier -- ^ The document the term is in. + -> Position -- ^ The position the term is at. + -> Session [Location] -- ^ The location(s) of the definitions +getDefinitions doc pos = do + let params = TextDocumentPositionParams doc pos + rsp <- request TextDocumentDefinition params :: Session DefinitionResponse + case getResponseResult rsp of + SingleLoc loc -> pure [loc] + MultiLoc locs -> pure locs + +-- | Returns the type definition(s) for the term at the specified position. +getTypeDefinitions :: TextDocumentIdentifier -- ^ The document the term is in. + -> Position -- ^ The position the term is at. + -> Session [Location] -- ^ The location(s) of the definitions +getTypeDefinitions doc pos = + let params = TextDocumentPositionParams doc pos + in getResponseResult <$> request TextDocumentTypeDefinition params + +-- | Renames the term at the specified position. rename :: TextDocumentIdentifier -> Position -> String -> Session () rename doc pos newName = do let params = RenameParams doc pos (T.pack newName) - rsp <- sendRequest TextDocumentRename params :: Session RenameResponse + rsp <- request TextDocumentRename params :: Session RenameResponse let wEdit = getResponseResult rsp req = RequestMessage "" (IdInt 0) WorkspaceApplyEdit (ApplyWorkspaceEditParams wEdit) updateState (ReqApplyWorkspaceEdit req) +-- | Returns the hover information at the specified position. +getHover :: TextDocumentIdentifier -> Position -> Session (Maybe Hover) +getHover doc pos = + let params = TextDocumentPositionParams doc pos + in getResponseResult <$> request TextDocumentHover params + +-- | Returns the highlighted occurences of the term at the specified position +getHighlights :: TextDocumentIdentifier -> Position -> Session [DocumentHighlight] +getHighlights doc pos = + let params = TextDocumentPositionParams doc pos + in getResponseResult <$> request TextDocumentDocumentHighlight params + -- | Checks the response for errors and throws an exception if needed. -- Returns the result if successful. getResponseResult :: ResponseMessage a -> a @@ -454,3 +551,29 @@ getResponseResult rsp = fromMaybe exc (rsp ^. result) where exc = throw $ UnexpectedResponseError (rsp ^. LSP.id) (fromJust $ rsp ^. LSP.error) +-- | Applies formatting to the specified document. +formatDoc :: TextDocumentIdentifier -> FormattingOptions -> Session () +formatDoc doc opts = do + let params = DocumentFormattingParams doc opts + edits <- getResponseResult <$> request TextDocumentFormatting params + applyTextEdits doc edits + +-- | Applies formatting to the specified range in a document. +formatRange :: TextDocumentIdentifier -> FormattingOptions -> Range -> Session () +formatRange doc opts range = do + let params = DocumentRangeFormattingParams doc range opts + edits <- getResponseResult <$> request TextDocumentRangeFormatting params + applyTextEdits doc edits + +applyTextEdits :: TextDocumentIdentifier -> List TextEdit -> Session () +applyTextEdits doc edits = + let wEdit = WorkspaceEdit (Just (HashMap.singleton (doc ^. uri) edits)) Nothing + req = RequestMessage "" (IdInt 0) WorkspaceApplyEdit (ApplyWorkspaceEditParams wEdit) + in updateState (ReqApplyWorkspaceEdit req) + +-- | Returns the code lenses for the specified document. +getCodeLenses :: TextDocumentIdentifier -> Session [CodeLens] +getCodeLenses tId = do + rsp <- request TextDocumentCodeLens (CodeLensParams tId) :: Session CodeLensResponse + case getResponseResult rsp of + List res -> pure res