X-Git-Url: https://git.lukelau.me/?a=blobdiff_plain;f=src%2FLanguage%2FHaskell%2FLSP%2FTest%2FExceptions.hs;h=afb48dfd4ff883962c804549f969bf71fc92a8fe;hb=fb93528b35992aef3ebe0a8b497cdd70aee21a12;hp=b1e0635e31b435b6a8e480e19b83b43fdab6802b;hpb=76034cba7ecf34ce9098d46f7e7bccea2b66c81f;p=lsp-test.git

diff --git a/src/Language/Haskell/LSP/Test/Exceptions.hs b/src/Language/Haskell/LSP/Test/Exceptions.hs
index b1e0635..afb48df 100644
--- a/src/Language/Haskell/LSP/Test/Exceptions.hs
+++ b/src/Language/Haskell/LSP/Test/Exceptions.hs
@@ -11,23 +11,30 @@ import Data.List
 import qualified Data.ByteString.Lazy.Char8 as B
 
 -- | An exception that can be thrown during a 'Haskell.LSP.Test.Session.Session'
-data SessionException = Timeout
+data SessionException = Timeout (Maybe FromServerMessage)
+                      | NoContentLengthHeader
                       | UnexpectedMessage String FromServerMessage
                       | ReplayOutOfOrder FromServerMessage [FromServerMessage]
                       | UnexpectedDiagnostics
                       | IncorrectApplyEditRequest String
                       | UnexpectedResponseError LspIdRsp ResponseError
                       | UnexpectedServerTermination
+                      | IllegalInitSequenceMessage FromServerMessage
   deriving Eq
 
 instance Exception SessionException
 
 instance Show SessionException where
-  show Timeout = "Timed out waiting to receive a message from the server."
+  show (Timeout lastMsg) =
+    "Timed out waiting to receive a message from the server." ++
+    case lastMsg of
+      Just msg -> "\nLast message received:\n" ++ B.unpack (encodePretty msg)
+      Nothing -> mempty
+  show NoContentLengthHeader = "Couldn't read Content-Length header from the server."
   show (UnexpectedMessage expected lastMsg) =
     "Received an unexpected message from the server:\n" ++
     "Was parsing: " ++ expected ++ "\n" ++
-    "Last message received: " ++ show lastMsg
+    "Last message received:\n" ++ B.unpack (encodePretty lastMsg)
   show (ReplayOutOfOrder received expected) =
     let expected' = nub expected
         getJsonDiff = lines . B.unpack . encodePretty
@@ -44,6 +51,9 @@ instance Show SessionException where
   show (UnexpectedResponseError lid e) = "Received an exepected error in a response for id " ++ show lid ++ ":\n"
                                           ++ show e
   show UnexpectedServerTermination = "Language server unexpectedly terminated"
+  show (IllegalInitSequenceMessage msg) =
+    "Received an illegal message between the initialize request and response:\n"
+      ++  B.unpack (encodePretty msg)
 
 -- | A predicate that matches on any 'SessionException'
 anySessionException :: SessionException -> Bool