Fix serialization of foldingRange capability to match spec

Author: fgreinacher

src/Protocol/Client/Capabilities/TextDocumentClientCapabilities.cs

@@ -109,7 +109,7 @@ public class TextDocumentClientCapabilities
         ///
         /// Since 3.10.0
         /// </summary>
-        public Supports<FoldingRangeCapability> FoldingRangeProvider { get; set; }
+        public Supports<FoldingRangeCapability> FoldingRange { get; set; }
 
         /// <summary>
         /// Capabilities specific to `textDocument/publishDiagnostics`.

src/Server/LanguageServer.cs

@@ -316,7 +316,7 @@ async Task<InitializeResult> IRequestHandler<InitializeParams, InitializeResult>
                 ImplementationProvider = ccp.GetStaticOptions(textDocumentCapabilities.Implementation).Get<IImplementationOptions, ImplementationOptions>(ImplementationOptions.Of),
                 TypeDefinitionProvider = ccp.GetStaticOptions(textDocumentCapabilities.TypeDefinition).Get<ITypeDefinitionOptions, TypeDefinitionOptions>(TypeDefinitionOptions.Of),
                 ColorProvider = ccp.GetStaticOptions(textDocumentCapabilities.ColorProvider).Get<IColorOptions, ColorOptions>(ColorOptions.Of),
-                FoldingRangeProvider = ccp.GetStaticOptions(textDocumentCapabilities.FoldingRangeProvider).Get<IFoldingRangeOptions, FoldingRangeOptions>(FoldingRangeOptions.Of),
+                FoldingRangeProvider = ccp.GetStaticOptions(textDocumentCapabilities.FoldingRange).Get<IFoldingRangeOptions, FoldingRangeOptions>(FoldingRangeOptions.Of),
             };
 
             if (_collection.ContainsHandler(typeof(IDidChangeWorkspaceFoldersHandler)))

test/Lsp.Tests/Capabilities/Client/ClientCapabilitiesTests.cs

@@ -62,7 +62,7 @@ public void SimpleTest(string expected)
                         DidSave = true,
                         WillSaveWaitUntil = true
                     },
-                    FoldingRangeProvider = new FoldingRangeCapability() {
+                    FoldingRange = new FoldingRangeCapability() {
                         DynamicRegistration = true,
                         LineFoldingOnly = true,
                         RangeLimit = 5000

test/Lsp.Tests/Capabilities/Client/ClientCapabilitiesTests_$SimpleTest.json

@@ -88,9 +88,9 @@
             "dynamicRegistration": true
         },
         "foldingRange": {
-          "dynamicRegistration": true,
-          "rangeLimit": 5000,
-          "lineFoldingOnly": true
+            "rangeLimit": 5000,
+            "lineFoldingOnly": true,
+            "dynamicRegistration": true
         }
     },
     "experimental": {

test/Lsp.Tests/FluentAssertionsExtensions.cs

@@ -37,7 +37,8 @@ public static EquivalencyAssertionOptions<T> ConfigureForSupports<T>(this Equiva
                 .ComparingByMembers<Supports<DidChangeConfigurationCapability>>()
                 .ComparingByMembers<Supports<DidChangeWatchedFilesCapability>>()
                 .ComparingByMembers<Supports<WorkspaceSymbolCapability>>()
-                .ComparingByMembers<Supports<ExecuteCommandCapability>>();
+                .ComparingByMembers<Supports<ExecuteCommandCapability>>()
+                .ComparingByMembers<Supports<FoldingRangeCapability>>();
         }
     }
 }

test/Lsp.Tests/Models/InitializeParamsTests.cs

@@ -51,10 +51,10 @@ public void SimpleTest(string expected)
                             DidSave = true,
                             WillSaveWaitUntil = true
                         },
-                        FoldingRangeProvider = new FoldingRangeCapability {
+                        FoldingRange = new FoldingRangeCapability {
                             DynamicRegistration = true,
                             LineFoldingOnly = true,
-                            RangeLimit = 500,
+                            RangeLimit = 5000,
                         }
                     },
                     Workspace = new WorkspaceClientCapabilities() {

test/Lsp.Tests/Models/InitializeParamsTests_$SimpleTest.json

@@ -78,10 +78,10 @@
                 "dynamicRegistration": true
             },
             "foldingRange": {
-                "dynamicRegistration": true,
                 "rangeLimit": 5000,
-                "lineFoldingOnly": true
-            },
+                "lineFoldingOnly": true,
+                "dynamicRegistration": true
+            }
         },
         "experimental": {
             "abc": "test"