{-# 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
--- <https://github.com/Microsoft/language-server-protocol Language Server Protocol servers>
--- functionally.
-
+{-|
+Module : Language.Haskell.LSP.Test
+Description : A functional testing framework for LSP servers.
+Maintainer : luke_lau@icloud.com
+Stability : experimental
+Portability : POSIX
+
+A framework for testing
+<https://github.com/Microsoft/language-server-protocol Language Server Protocol servers>
+functionally.
+-}
module Language.Haskell.LSP.Test
(
-- * Sessions
- runSession
- , runSessionWithHandles
+ Session
+ , runSession
+ -- ** Config
, runSessionWithConfig
- , Session
, SessionConfig(..)
+ , defaultConfig
+ , module Language.Haskell.LSP.Test.Capabilities
+ -- ** Exceptions
, SessionException(..)
, anySessionException
, withTimeout
-- * Sending
+ , request
+ , request_
, sendRequest
- , sendRequest_
- , sendRequest'
, sendNotification
- , sendRequestMessage
- , sendNotification'
, sendResponse
-- * Receving
, message
, initializeResponse
-- ** Documents
, openDoc
+ , closeDoc
, documentContents
, getDocumentEdit
, getDocUri
, getHover
-- ** Highlights
, getHighlights
+ -- ** Formatting
+ , formatDoc
+ , formatRange
-- ** Edits
, applyEdit
) where
import qualified Language.Haskell.LSP.Types.Capabilities as LSP
import Language.Haskell.LSP.Messages
import Language.Haskell.LSP.VFS
+import Language.Haskell.LSP.Test.Capabilities
import Language.Haskell.LSP.Test.Compat
import Language.Haskell.LSP.Test.Decoding
import Language.Haskell.LSP.Test.Exceptions
-- | Starts a new session.
runSession :: String -- ^ The command to run the server.
+ -> LSP.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.
+runSessionWithConfig :: SessionConfig -- ^ Configuration options for the session.
-> String -- ^ The command to run the server.
+ -> LSP.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
(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
+ runSessionWithHandles serverIn serverOut listenServer config caps rootDir $ 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)
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 }
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.
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
sendNotification TextDocumentDidClose params = do
oldVFS <- vfs <$> get
newVFS <- liftIO $ closeVFS oldVFS n
modify (\s -> s { vfs = newVFS })
- sendNotification' n
-
-sendNotification method params = sendNotification' (NotificationMessage "2.0" method params)
+ sendMessage n
-sendNotification' :: (ToJSON a, ToJSON b) => NotificationMessage a b -> Session ()
-sendNotification' = sendMessage
+sendNotification method params = sendMessage (NotificationMessage "2.0" method params)
sendResponse :: ToJSON a => ResponseMessage a -> Session ()
sendResponse = sendMessage
contents <- liftIO $ T.readFile fp
return $ TextDocumentItem (filePathToUri fp) (T.pack languageId) 0 contents
+-- | 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
+
+ oldVfs <- vfs <$> get
+ let notif = NotificationMessage "" TextDocumentDidClose params
+ newVfs <- liftIO $ closeVFS oldVfs notif
+ modify $ \s -> s { vfs = newVfs }
+
-- | Gets the Uri for the file corrected to the session directory.
getDocUri :: FilePath -> Session Uri
getDocUri file = do
-- | Returns the symbols in a document.
getDocumentSymbols :: TextDocumentIdentifier -> Session [SymbolInformation]
getDocumentSymbols doc = do
- ResponseMessage _ rspLid mRes mErr <- sendRequest TextDocumentDocumentSymbol (DocumentSymbolParams doc)
+ ResponseMessage _ rspLid mRes mErr <- request TextDocumentDocumentSymbol (DocumentSymbolParams doc)
maybe (return ()) (throw . UnexpectedResponseError rspLid) mErr
let (Just (List symbols)) = mRes
return symbols
where
go :: CodeActionContext -> [CommandOrCodeAction] -> Diagnostic -> Session [CommandOrCodeAction]
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)
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
verDoc <- getVersionedDoc doc
- caps <- asks (capabilities . config)
+ caps <- asks sessionCapabilities
let supportsDocChanges = fromMaybe False $ do
let LSP.ClientCapabilities mWorkspace _ _ = caps
-- | 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
getReferences doc pos inclDecl =
let ctx = ReferenceContext inclDecl
params = ReferenceParams doc pos ctx
- in getResponseResult <$> sendRequest TextDocumentReferences params
+ in getResponseResult <$> request TextDocumentReferences params
-- | Returns the definition(s) for the term at the specified position.
getDefinitions :: TextDocumentIdentifier -- ^ The document the term is in.
-> Session [Location] -- ^ The location(s) of the definitions
getDefinitions doc pos =
let params = TextDocumentPositionParams doc pos
- in getResponseResult <$> sendRequest TextDocumentDefinition params
+ in getResponseResult <$> request TextDocumentDefinition 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.
+-- | Returns the hover information at the specified position.
getHover :: TextDocumentIdentifier -> Position -> Session (Maybe Hover)
getHover doc pos =
let params = TextDocumentPositionParams doc pos
- in getResponseResult <$> sendRequest TextDocumentHover params
+ in getResponseResult <$> 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 <$> sendRequest TextDocumentDocumentHighlight params
+ in getResponseResult <$> request TextDocumentDocumentHighlight params
-- | Checks the response for errors and throws an exception if needed.
-- Returns the result if successful.
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)
projects / lsp-test.git / blobdiff