const std = @import("std"); const headerPkg = @import("header"); const Server = @import("server"); const allocator = std.testing.allocator; const initialize_msg = \\{"processId":6896,"clientInfo":{"name":"vscode","version":"1.46.1"},"rootPath":null,"rootUri":null,"capabilities":{"workspace":{"applyEdit":true,"workspaceEdit":{"documentChanges":true,"resourceOperations":["create","rename","delete"],"failureHandling":"textOnlyTransactional"},"didChangeConfiguration":{"dynamicRegistration":true},"didChangeWatchedFiles":{"dynamicRegistration":true},"symbol":{"dynamicRegistration":true,"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]},"tagSupport":{"valueSet":[1]}},"executeCommand":{"dynamicRegistration":true},"configuration":true,"workspaceFolders":true},"textDocument":{"publishDiagnostics":{"relatedInformation":true,"versionSupport":false,"tagSupport":{"valueSet":[1,2]},"complexDiagnosticCodeSupport":true},"synchronization":{"dynamicRegistration":true,"willSave":true,"willSaveWaitUntil":true,"didSave":true},"completion":{"dynamicRegistration":true,"contextSupport":true,"completionItem":{"snippetSupport":true,"commitCharactersSupport":true,"documentationFormat":["markdown","plaintext"],"deprecatedSupport":true,"preselectSupport":true,"tagSupport":{"valueSet":[1]},"insertReplaceSupport":true},"completionItemKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]}},"hover":{"dynamicRegistration":true,"contentFormat":["markdown","plaintext"]},"signatureHelp":{"dynamicRegistration":true,"signatureInformation":{"documentationFormat":["markdown","plaintext"],"parameterInformation":{"labelOffsetSupport":true}},"contextSupport":true},"definition":{"dynamicRegistration":true,"linkSupport":true},"references":{"dynamicRegistration":true},"documentHighlight":{"dynamicRegistration":true},"documentSymbol":{"dynamicRegistration":true,"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]},"hierarchicalDocumentSymbolSupport":true,"tagSupport":{"valueSet":[1]}},"codeAction":{"dynamicRegistration":true,"isPreferredSupport":true,"codeActionLiteralSupport":{"codeActionKind":{"valueSet":["","quickfix","refactor","refactor.extract","refactor.inline","refactor.rewrite","source","source.organizeImports"]}}},"codeLens":{"dynamicRegistration":true},"formatting":{"dynamicRegistration":true},"rangeFormatting":{"dynamicRegistration":true},"onTypeFormatting":{"dynamicRegistration":true},"rename":{"dynamicRegistration":true,"prepareSupport":true},"documentLink":{"dynamicRegistration":true,"tooltipSupport":true},"typeDefinition":{"dynamicRegistration":true,"linkSupport":true},"implementation":{"dynamicRegistration":true,"linkSupport":true},"colorProvider":{"dynamicRegistration":true},"foldingRange":{"dynamicRegistration":true,"rangeLimit":5000,"lineFoldingOnly":true},"declaration":{"dynamicRegistration":true,"linkSupport":true},"selectionRange":{"dynamicRegistration":true},"semanticTokens":{"dynamicRegistration":true,"tokenTypes":["comment","keyword","number","regexp","operator","namespace","type","struct","class","interface","enum","typeParameter","function","member","macro","variable","parameter","property","label"],"tokenModifiers":["declaration","documentation","static","abstract","deprecated","readonly"]}},"window":{"workDoneProgress":true}},"trace":"off","workspaceFolders":[{"uri":"file://./tests", "name":"root"}]} ; const Context = struct { server: Server, request_id: u32 = 1, pub fn init() !Context { var context = Context{ .server = try Server.init( allocator, .{}, null, .debug, ), }; try context.request("initialize", initialize_msg, null); try context.request("initialized", "{}", null); return context; } pub fn deinit(self: *Context) void { self.request("shutdown", "{}", null) catch {}; self.server.deinit(); } fn request( self: *Context, method: []const u8, params: []const u8, expect: ?[]const u8, ) !void { var output = std.ArrayList(u8).init(allocator); defer output.deinit(); // create the request self.request_id += 1; const req = try std.fmt.allocPrint(allocator, \\{{"jsonrpc":"2.0","id":{},"method":"{s}","params":{s}}} , .{ self.request_id, method, params }); defer allocator.free(req); // send the request to the server try self.server.processJsonRpc(output.writer(), req); // if we don't expect a response ignore it const expected = expect orelse return; // get the output from the server var buffer_stream = std.io.fixedBufferStream(output.items); const header = try headerPkg.readRequestHeader(allocator, buffer_stream.reader()); defer header.deinit(allocator); var response_bytes = try allocator.alloc(u8, header.content_length); defer allocator.free(response_bytes); const content_length = try buffer_stream.reader().readAll(response_bytes); try std.testing.expectEqual(content_length, header.content_length); // parse the response var parser = std.json.Parser.init(allocator, false); defer parser.deinit(); var tree = try parser.parse(response_bytes); defer tree.deinit(); const response = tree.root.Object; // assertions try std.testing.expectEqualStrings("2.0", response.get("jsonrpc").?.String); try std.testing.expectEqual(self.request_id, @intCast(u32, response.get("id").?.Integer)); try std.testing.expect(!response.contains("error")); const result_json = try std.json.stringifyAlloc(allocator, response.get("result").?, .{}); defer allocator.free(result_json); try std.testing.expectEqualStrings(expected, result_json); } }; test "Open file, ask for semantic tokens" { var ctx = try Context.init(); defer ctx.deinit(); try ctx.request("textDocument/didOpen", \\{"textDocument":{"uri":"file:///test.zig","languageId":"zig","version":420,"text":"const std = @import(\"std\");"}} , null); try ctx.request("textDocument/semanticTokens/full", \\{"textDocument":{"uri":"file:///test.zig"}} , \\{"data":[0,0,5,7,0,0,6,3,2,32,0,4,1,11,0,0,2,7,12,0,0,8,5,9,0]} ); } test "Request completion in an empty file" { var ctx = try Context.init(); defer ctx.deinit(); try ctx.request("textDocument/didOpen", \\{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"file:///test.zig","languageId":"zig","version":420,"text":""}}} , null); try ctx.request("textDocument/completion", \\{"textDocument":{"uri":"file:///test.zig"}, "position":{"line":0,"character":0}} , null); } test "Request completion with no trailing whitespace" { var ctx = try Context.init(); defer ctx.deinit(); try ctx.request("textDocument/didOpen", \\{"textDocument":{"uri":"file:///test.zig","languageId":"zig","version":420,"text":"const std = @import(\"std\");\nc"}} , null); try ctx.request("textDocument/completion", \\{"textDocument":{"uri":"file:///test.zig"}, "position":{"line":1,"character":1}} , \\{"isIncomplete":false,"items":[{"label":"std","labelDetails":{"detail":"","description":"@import(\"std\")","sortText":null},"kind":21,"detail":"std","sortText":"1_std","filterText":null,"insertText":"std","insertTextFormat":1,"documentation":null}]} ); } test "Encoded space in file name and usingnamespace on non-existing symbol" { var ctx = try Context.init(); defer ctx.deinit(); try ctx.request("textDocument/didOpen", \\{"textDocument":{"uri":"file:///%20test.zig","languageId":"zig","version":420,"text":"usingnamespace a.b;\nb."}} , null); try ctx.request("textDocument/completion", \\{"textDocument":{"uri":"file:///%20test.zig"}, "position":{"line":1,"character":2}} , \\{"isIncomplete":false,"items":[]} ); } test "Self-referential definition" { var ctx = try Context.init(); defer ctx.deinit(); try ctx.request("textDocument/didOpen", \\{"textDocument":{"uri":"file:///test.zig","languageId":"zig","version":420,"text":"const h = h(0);\nc"}} , null); try ctx.request("textDocument/completion", \\{"textDocument":{"uri":"file:///test.zig"}, "position":{"line":1,"character":1}} , \\{"isIncomplete":false,"items":[{"label":"h","labelDetails":{"detail":"","description":"h(0)","sortText":null},"kind":21,"detail":"h","sortText":"1_h","filterText":null,"insertText":"h","insertTextFormat":1,"documentation":null}]} ); } test "Pointer and optional deref" { var ctx = try Context.init(); defer ctx.deinit(); try ctx.request("textDocument/didOpen", \\{"textDocument":{"uri":"file:///test.zig","languageId":"zig","version":420,"text":"var value: ?struct { data: i32 = 5 } = null;const ptr = &value;\nconst a = ptr.*.?."}} , null); try ctx.request("textDocument/completion", \\{"textDocument":{"uri":"file:///test.zig"}, "position":{"line":1,"character":18}} , \\{"isIncomplete":false,"items":[{"label":"data","labelDetails":{"detail":"","description":"i32 ","sortText":null},"kind":5,"detail":"data","sortText":"3_data","filterText":null,"insertText":"data","insertTextFormat":1,"documentation":null}]} ); }