Basic snapshot tests

build.sbt

@@ -126,13 +126,11 @@ lazy val lsp = projectMatrix
     libraryDependencies += "com.lihaoyi"   %%% "upickle"         % V.upickle,
     libraryDependencies += "org.typelevel" %%% "cats-core"       % V.cats,
     libraryDependencies += "tech.neander"  %%% "jsonrpclib-core" % V.jsonrpclib,
-    test                                    := {},
-    snapshotsPackageName                    := "tests.core"
+    test                                    := {}
   )
   .jvmPlatform(V.scalaVersions)
   .jsPlatform(V.scalaVersions)
   .nativePlatform(V.scalaVersions)
-  .enablePlugins(SnapshotsPlugin)
 
 lazy val app = projectMatrix
   .in(file("modules/app"))
@@ -194,10 +192,14 @@ lazy val tests = projectMatrix
   .settings(
     libraryDependencies += "org.http4s" %% "http4s-jdk-http-client" % V.http4sJdkClient % Test,
     libraryDependencies += "com.disneystreaming" %%% "weaver-cats" % V.weaver % Test,
+    libraryDependencies += "com.lihaoyi" %%% "pprint" % "0.7.0" % Test,
     libraryDependencies += "org.typelevel" %% "shapeless3-deriving" % "3.4.1" % Test,
     libraryDependencies += "org.scalacheck" %% "scalacheck" % "1.17.0" % Test,
-    Test / fork := virtualAxes.value.contains(VirtualAxis.jvm)
+    Test / fork             := virtualAxes.value.contains(VirtualAxis.jvm),
+    snapshotsPackageName    := "tests.core",
+    snapshotsForceOverwrite := !sys.env.contains("CI")
   )
+  .enablePlugins(SnapshotsPlugin)
 
 lazy val example = projectMatrix
   .in(file("modules/example"))

modules/lsp/src/main/scala/json.scala

@@ -24,24 +24,25 @@ private[lsp] object json:
   val valueReader = upickle.default.readwriter[ujson.Value]
   def badMerge[T](r1: => Reader[?], rest: Reader[?]*): Reader[T] =
     valueReader.map { json =>
-      var t: T | Null = null
-      val stack       = Vector.newBuilder[Throwable]
+      var t     = Option.empty[T]
+      val stack = Vector.newBuilder[Throwable]
 
       (r1 +: rest).foreach { reader =>
-        if t == null then
+        if t.isEmpty then
           try
-            t =
+            t = Some(
               read[T](json, trace = true)(using reader.asInstanceOf[Reader[T]])
+            )
           catch
             case exc =>
               stack += exc
       }
-      if t != null then t.nn
-      else
+      t.getOrElse(
         throw new LangoustineError.FailureParsing(
           json,
           stack.result().headOption.getOrElse(null)
         )
+      )
     }
 
   extension [T](r: Reader[T]) def widen[K >: T] = r.map(_.asInstanceOf[K])

modules/tests/src/test/resources/snapshots/tests/request__textDocument_documentLink

@@ -0,0 +1,15 @@
+DocumentLinkParams(TextDocumentIdentifier(file1),凇뙑엸䝡럓젨돟딖墦삭痚Ù㡦뒹氯‸й⮴Պ鱀俘ཀྵ궐봒餥⵹脑唔釖ۑ韆◭摯㢥莟犒秳剴觞萦ឱ鿨ᑬ뒀懥剽㏿ᐥ᳟Ᵹ㌂犤雁駒瞧嫼ꐽꈉꜶ拁ꈁ뻓蠈떯ૹ釡䓚屚뇣豐铹꤀脋뒔竟Ｆ,봮ࠗ짔暧貤ⅻ䄙ꨮ碡듘敒溷텛甚惙휙꺢뮷찾ⲁ㐐驩瞶죊湪祸⻎ⅶ䩸妖ꙋ栋ꯈ졮焼ᤝ릌씓〡跿薽)
+{"textDocument":{"uri":"file1"},"workDoneToken":"凇뙑엸䝡럓젨돟딖墦삭痚Ù㡦뒹氯‸й⮴Պ鱀俘ཀྵ궐봒餥⵹脑唔釖ۑ韆◭摯㢥莟犒秳剴觞萦ឱ鿨ᑬ뒀懥剽㏿ᐥ᳟Ᵹ㌂犤雁駒瞧嫼ꐽꈉꜶ拁ꈁ뻓蠈떯ૹ釡䓚屚뇣豐铹꤀脋뒔竟Ｆ","partialResultToken":"봮ࠗ짔暧貤ⅻ䄙ꨮ碡듘敒溷텛甚惙휙꺢뮷찾ⲁ㐐驩瞶죊湪祸⻎ⅶ䩸妖ꙋ栋ꯈ졮焼ᤝ릌씓〡跿薽"}
+---------------------
+DocumentLinkParams(TextDocumentIdentifier(file2),韵硠趣ꏱ黟滍떆੦혽㲰䬒↽Ṟᐫ꜀璬䍅뜝㻠・뒨뢾ᷓ,1534272523)
+{"textDocument":{"uri":"file2"},"workDoneToken":"韵硠趣ꏱ黟滍떆੦혽㲰䬒↽Ṟᐫ꜀璬䍅뜝㻠・뒨뢾ᷓ","partialResultToken":1534272523}
+---------------------
+DocumentLinkParams(TextDocumentIdentifier(file1),1346632011,-2147483648)
+{"textDocument":{"uri":"file1"},"workDoneToken":1346632011,"partialResultToken":-2147483648}
+---------------------
+DocumentLinkParams(TextDocumentIdentifier(file2),null,)
+{"textDocument":{"uri":"file2"},"partialResultToken":""}
+---------------------
+DocumentLinkParams(TextDocumentIdentifier(file1),null,null)
+{"textDocument":{"uri":"file1"}}
+---------------------

modules/tests/src/test/resources/snapshots/tests/request__textDocument_documentSymbol

@@ -0,0 +1,15 @@
+DocumentSymbolParams(TextDocumentIdentifier(file2),null,⨩|훠뱟慻ি퇖∷㟿㣥ꅟ儵ꆂ糏粇흱凘ꨴ骿ᑜ훗뱗渐姕Ạኹ᝱渻⛱픦͛뢋ᝦ暯ꣲ燦拘ⴝ뺰)
+{"textDocument":{"uri":"file2"},"partialResultToken":"⨩|훠뱟慻ি퇖∷㟿㣥ꅟ儵ꆂ糏粇흱凘ꨴ骿ᑜ훗뱗渐姕Ạኹ᝱渻⛱픦͛뢋ᝦ暯ꣲ燦拘ⴝ뺰"}
+---------------------
+DocumentSymbolParams(TextDocumentIdentifier(file1),蕱흐퉖쵡⿷ሾ뚬䇹㰽Ղ惘횭捦顆른ꏧ䬂៯雚㻉뙻嫰說雄௯βי᧧㮳핅鏐暗쌦ᔇ䢩朓앾䴒ᔂ詻ش妉벩અ뻰ﲎ䤤歰荺㸩嬡䬾⫕兘蔄,null)
+{"textDocument":{"uri":"file1"},"workDoneToken":"蕱흐퉖쵡⿷ሾ뚬䇹㰽Ղ惘횭捦顆른ꏧ䬂៯雚㻉뙻嫰說雄௯βי᧧㮳핅鏐暗쌦ᔇ䢩朓앾䴒ᔂ詻ش妉벩અ뻰ﲎ䤤歰荺㸩嬡䬾⫕兘蔄"}
+---------------------
+DocumentSymbolParams(TextDocumentIdentifier(file2),2147483647,-429001240)
+{"textDocument":{"uri":"file2"},"workDoneToken":2147483647,"partialResultToken":-429001240}
+---------------------
+DocumentSymbolParams(TextDocumentIdentifier(file2),null,null)
+{"textDocument":{"uri":"file2"}}
+---------------------
+DocumentSymbolParams(TextDocumentIdentifier(file2),null,-275211255)
+{"textDocument":{"uri":"file2"},"partialResultToken":-275211255}
+---------------------

modules/tests/src/test/resources/snapshots/tests/request__textDocument_foldingRange

@@ -0,0 +1,15 @@
+FoldingRangeParams(TextDocumentIdentifier(file1),null,null)
+{"textDocument":{"uri":"file1"}}
+---------------------
+FoldingRangeParams(TextDocumentIdentifier(file2),null,340346666)
+{"textDocument":{"uri":"file2"},"partialResultToken":340346666}
+---------------------
+FoldingRangeParams(TextDocumentIdentifier(file1),2002172247,릏炶걭皵ꭗ㆑㶳˓ᯓ᯻㘗ᴢￌꢅଢ଼㤵侃ۅ풃罹襒乣蜧飻訤鿌Ἇ쯑놬쵪銡䪰ᄌ⭼䥥媚荾ᗲ繾쉴䂷壄擄䀯豫ꓛ沏韩洦⼝ꇩ䪀Ąగ䐊࠰驂띈刺)
+{"textDocument":{"uri":"file1"},"workDoneToken":2002172247,"partialResultToken":"릏炶걭皵ꭗ㆑㶳˓ᯓ᯻㘗ᴢￌꢅଢ଼㤵侃ۅ풃罹襒乣蜧飻訤鿌Ἇ쯑놬쵪銡䪰ᄌ⭼䥥媚荾ᗲ繾쉴䂷壄擄䀯豫ꓛ沏韩洦⼝ꇩ䪀Ąగ䐊࠰驂띈刺"}
+---------------------
+FoldingRangeParams(TextDocumentIdentifier(file1),-2147483648,ҵ䭢罂ᒟⷒ竜툘揅ᄿ閥씾嘑쎼厱䧒䬠謔䲶钠蘔椹鑀鶒ﹺ愈滷꣧䧨୦এࣦ൞bޝࡖʩ縆檜삳㦺Ṅ鏀阊㋬衝躉繯⟊ᓺ䙞折많댮앵꜑Ľ꾃댪⯔4溡㬪ﳺ뺸⍵榴㌵研鴳羺䃹鐪鐍뙁ᘊ⫼㹫鋋酸ꗼ祺퇍甝䌍)
+{"textDocument":{"uri":"file1"},"workDoneToken":-2147483648,"partialResultToken":"ҵ䭢罂ᒟⷒ竜툘揅ᄿ閥씾嘑쎼厱䧒䬠謔䲶钠蘔椹鑀鶒ﹺ愈滷꣧䧨୦এࣦ൞bޝࡖʩ縆檜삳㦺Ṅ鏀阊㋬衝躉繯⟊ᓺ䙞折많댮앵꜑Ľ꾃댪⯔4溡㬪ﳺ뺸⍵榴㌵研鴳羺䃹鐪鐍뙁ᘊ⫼㹫鋋酸ꗼ祺퇍甝䌍"}
+---------------------
+FoldingRangeParams(TextDocumentIdentifier(file1),null,null)
+{"textDocument":{"uri":"file1"}}
+---------------------

modules/tests/src/test/resources/snapshots/tests/request__textDocument_references

@@ -0,0 +1,15 @@
+ReferenceParams(ReferenceContext(true),TextDocumentIdentifier(file2),Position(55,68),null,null)
+{"context":{"includeDeclaration":true},"textDocument":{"uri":"file2"},"position":{"line":55,"character":68}}
+---------------------
+ReferenceParams(ReferenceContext(true),TextDocumentIdentifier(file1),Position(14,63),자墿潵／埜ꀇ獾ᱡ爵Ἆ῁䦟掰໌ӟ魙ࣱ䐌椥樤髜ꜙﬤ췓矍Ώ왚舞⡠췢셖狛̒଱☲唸檽먥⪺춭刐景しᄚ沓琜쀭뺮᧡틆牅舩኿﷎적錤쎬ﴎ碚缭バܾ챶ᑟ埠,-720406641)
+{"context":{"includeDeclaration":true},"textDocument":{"uri":"file1"},"position":{"line":14,"character":63},"workDoneToken":"자墿潵／埜ꀇ獾ᱡ爵Ἆ῁䦟掰໌ӟ魙ࣱ䐌椥樤髜ꜙﬤ췓矍Ώ왚舞⡠췢셖狛̒଱☲唸檽먥⪺춭刐景しᄚ沓琜쀭뺮᧡틆牅舩኿﷎적錤쎬ﴎ碚缭バܾ챶ᑟ埠","partialResultToken":-720406641}
+---------------------
+ReferenceParams(ReferenceContext(true),TextDocumentIdentifier(file1),Position(18,50),-590955446,↺ퟶﺯࢊⷽ禚㑄劚韏졛䏠濍㬯ଇ類೉㪳圙黅汰檴㚜티랟鱛闃赀淶狼龒⏩ኙ䝕턇ꊚЉ湚皺㤖뎌ﴩ⮦앍⨿꟧樂낸㙲庑ꂂ榧ⓐ⑥趎Ǫ핾⬐럢⤛搰﯊ᴞ諍巧㛴䘜㰳䢹芍毂墖ꗶ둡ㅉ又䍡չ춃俓쿍쟺㏹ㄋካ婾딈)
+{"context":{"includeDeclaration":true},"textDocument":{"uri":"file1"},"position":{"line":18,"character":50},"workDoneToken":-590955446,"partialResultToken":"↺ퟶﺯࢊⷽ禚㑄劚韏졛䏠濍㬯ଇ類೉㪳圙黅汰檴㚜티랟鱛闃赀淶狼龒⏩ኙ䝕턇ꊚЉ湚皺㤖뎌ﴩ⮦앍⨿꟧樂낸㙲庑ꂂ榧ⓐ⑥趎Ǫ핾⬐럢⤛搰﯊ᴞ諍巧㛴䘜㰳䢹芍毂墖ꗶ둡ㅉ又䍡չ춃俓쿍쟺㏹ㄋካ婾딈"}
+---------------------
+ReferenceParams(ReferenceContext(false),TextDocumentIdentifier(file2),Position(35,78),-1788505416,null)
+{"context":{"includeDeclaration":false},"textDocument":{"uri":"file2"},"position":{"line":35,"character":78},"workDoneToken":-1788505416}
+---------------------
+ReferenceParams(ReferenceContext(false),TextDocumentIdentifier(file2),Position(85,93),null,null)
+{"context":{"includeDeclaration":false},"textDocument":{"uri":"file2"},"position":{"line":85,"character":93}}
+---------------------