Port non-baseline diagnostics tests

internal/fourslash/_scripts/convertFourslash.mts

@@ -213,6 +213,10 @@ function parseFourslashStatement(statement: ts.Statement): Cmd[] | undefined {
                 case "renameInfoSucceeded":
                 case "renameInfoFailed":
                     return parseRenameInfo(func.text, callExpression.arguments);
+                case "getSemanticDiagnostics":
+                case "getSuggestionDiagnostics":
+                case "getSyntacticDiagnostics":
+                    return parseVerifyDiagnostics(func.text, callExpression.arguments);
             }
         }
         // `goTo....`
@@ -1260,6 +1264,105 @@ function parseBaselineInlayHints(args: readonly ts.Expression[]): [VerifyBaselin
     }];
 }
 
+function parseVerifyDiagnostics(funcName: string, args: readonly ts.Expression[]): [VerifyDiagnosticsCmd] | undefined {
+    if (!args[0] || !ts.isArrayLiteralExpression(args[0])) {
+        console.error(`Expected an array literal argument in verify.${funcName}`);
+        return undefined;
+    }
+    const goArgs: string[] = [];
+    for (const expr of args[0].elements) {
+        const diag = parseExpectedDiagnostic(expr);
+        if (diag === undefined) {
+            return undefined;
+        }
+        goArgs.push(diag);
+    }
+    return [{
+        kind: "verifyDiagnostics",
+        arg: goArgs.length > 0 ? `[]*lsproto.Diagnostic{\n${goArgs.join(",\n")},\n}` : "nil",
+        isSuggestion: funcName === "getSuggestionDiagnostics",
+    }];
+}
+
+function parseExpectedDiagnostic(expr: ts.Expression): string | undefined {
+    if (!ts.isObjectLiteralExpression(expr)) {
+        console.error(`Expected object literal expression for expected diagnostic, got ${expr.getText()}`);
+        return undefined;
+    }
+
+    const diagnosticProps: string[] = [];
+
+    for (const prop of expr.properties) {
+        if (!ts.isPropertyAssignment(prop) || !ts.isIdentifier(prop.name)) {
+            console.error(`Expected property assignment with identifier name for expected diagnostic, got ${prop.getText()}`);
+            return undefined;
+        }
+
+        const propName = prop.name.text;
+        const init = prop.initializer;
+
+        switch (propName) {
+            case "message": {
+                let messageInit;
+                if (messageInit = getStringLiteralLike(init)) {
+                    messageInit.text = messageInit.text.replace("/tests/cases/fourslash", "");
+                    diagnosticProps.push(`Message: ${getGoStringLiteral(messageInit.text)},`);
+                }
+                else {
+                    console.error(`Expected string literal for diagnostic message, got ${init.getText()}`);
+                    return undefined;
+                }
+                break;
+            }
+            case "code": {
+                let codeInit;
+                if (codeInit = getNumericLiteral(init)) {
+                    diagnosticProps.push(`Code: &lsproto.IntegerOrString{Integer: PtrTo[int32](${codeInit.text})},`);
+                }
+                else {
+                    console.error(`Expected numeric literal for diagnostic code, got ${init.getText()}`);
+                    return undefined;
+                }
+                break;
+            }
+            case "range": {
+                // Handle range references like ranges[0]
+                const rangeArg = parseBaselineMarkerOrRangeArg(init);
+                if (rangeArg) {
+                    diagnosticProps.push(`Range: ${rangeArg}.LSRange,`);
+                }
+                else {
+                    console.error(`Expected range reference for diagnostic range, got ${init.getText()}`);
+                    return undefined;
+                }
+                break;
+            }
+            case "reportsDeprecated": {
+                if (init.kind === ts.SyntaxKind.TrueKeyword) {
+                    diagnosticProps.push(`Tags: &[]lsproto.DiagnosticTag{lsproto.DiagnosticTagDeprecated},`);
+                }
+                break;
+            }
+            case "reportsUnnecessary": {
+                if (init.kind === ts.SyntaxKind.TrueKeyword) {
+                    diagnosticProps.push(`Tags: &[]lsproto.DiagnosticTag{lsproto.DiagnosticTagUnnecessary},`);
+                }
+                break;
+            }
+            default:
+                console.error(`Unrecognized property in expected diagnostic: ${propName}`);
+                return undefined;
+        }
+    }
+
+    if (diagnosticProps.length === 0) {
+        console.error(`No valid properties found in diagnostic object`);
+        return undefined;
+    }
+
+    return `&lsproto.Diagnostic{\n${diagnosticProps.join("\n")}\n}`;
+}
+
 function stringToTristate(s: string): string {
     switch (s) {
         case "true":
@@ -1395,7 +1498,7 @@ function parseBaselineMarkerOrRangeArg(arg: ts.Expression): string | undefined {
             return result;
         }
     }
-    console.error(`Unrecognized argument in verify.baselineRename: ${arg.getText()}`);
+    console.error(`Unrecognized range argument: ${arg.getText()}`);
     return undefined;
 }
 
@@ -1716,12 +1819,6 @@ interface VerifyBaselineFindAllReferencesCmd {
     ranges?: boolean;
 }
 
-interface VerifyBaselineFindAllReferencesCmd {
-    kind: "verifyBaselineFindAllReferences";
-    markers: string[];
-    ranges?: boolean;
-}
-
 interface VerifyBaselineGoToDefinitionCmd {
     kind: "verifyBaselineGoToDefinition" | "verifyBaselineGoToType";
     markers: string[];
@@ -1789,6 +1886,12 @@ interface VerifyRenameInfoCmd {
     preferences: string;
 }
 
+interface VerifyDiagnosticsCmd {
+    kind: "verifyDiagnostics";
+    arg: string;
+    isSuggestion: boolean;
+}
+
 type Cmd =
     | VerifyCompletionsCmd
     | VerifyApplyCodeActionFromCompletionCmd
@@ -1804,7 +1907,8 @@ type Cmd =
     | VerifyBaselineRenameCmd
     | VerifyRenameInfoCmd
     | VerifyBaselineInlayHintsCmd
-    | VerifyImportFixAtPositionCmd;
+    | VerifyImportFixAtPositionCmd
+    | VerifyDiagnosticsCmd;
 
 function generateVerifyCompletions({ marker, args, isNewIdentifierLocation, andApplyCodeActionArgs }: VerifyCompletionsCmd): string {
     let expectedList: string;
@@ -1953,6 +2057,9 @@ function generateCmd(cmd: Cmd): string {
             return generateBaselineInlayHints(cmd);
         case "verifyImportFixAtPosition":
             return generateImportFixAtPosition(cmd);
+        case "verifyDiagnostics":
+            const funcName = cmd.isSuggestion ? "VerifySuggestionDiagnostics" : "VerifyNonSuggestionDiagnostics";
+            return `f.${funcName}(t, ${cmd.arg})`;
         default:
             let neverCommand: never = cmd;
             throw new Error(`Unknown command kind: ${neverCommand as Cmd["kind"]}`);

internal/fourslash/_scripts/failingTests.txt

@@ -13,6 +13,7 @@ TestAutoImportCrossProject_symlinks_toDist
 TestAutoImportCrossProject_symlinks_toSrc
 TestAutoImportFileExcludePatterns3
 TestAutoImportJsDocImport1
+TestAutoImportModuleNone1
 TestAutoImportNodeNextJSRequire
 TestAutoImportPathsAliasesAndBarrels
 TestAutoImportPnpm
@@ -328,6 +329,7 @@ TestInstanceTypesForGenericType1
 TestJavascriptModules20
 TestJavascriptModulesTypeImport
 TestJsDocAugments
+TestJsDocAugmentsAndExtends
 TestJsDocExtends
 TestJsDocFunctionSignatures10
 TestJsDocFunctionSignatures11

internal/fourslash/_scripts/manualTests.txt

@@ -2,6 +2,7 @@ completionListInClosedFunction05
 completionsAtIncompleteObjectLiteralProperty
 completionsSelfDeclaring1
 completionsWithDeprecatedTag4
+parserCorruptionAfterMapInClass
 renameDefaultKeyword
 renameForDefaultExport01
 tsxCompletion12

internal/fourslash/fourslash.go

@@ -556,6 +556,16 @@ func (f *FourslashTest) Ranges() []*RangeMarker {
 	return f.testData.Ranges
 }
 
+func (f *FourslashTest) getRangesInFile(fileName string) []*RangeMarker {
+	var rangesInFile []*RangeMarker
+	for _, rangeMarker := range f.testData.Ranges {
+		if rangeMarker.FileName() == fileName {
+			rangesInFile = append(rangesInFile, rangeMarker)
+		}
+	}
+	return rangesInFile
+}
+
 func (f *FourslashTest) ensureActiveFile(t *testing.T, filename string) {
 	if f.activeFilename != filename {
 		f.openFile(t, filename)
@@ -913,8 +923,9 @@ func ignorePaths(paths ...string) cmp.Option {
 }
 
 var (
-	completionIgnoreOpts = ignorePaths(".Kind", ".SortText", ".FilterText", ".Data")
-	autoImportIgnoreOpts = ignorePaths(".Kind", ".SortText", ".FilterText", ".Data", ".LabelDetails", ".Detail", ".AdditionalTextEdits")
+	completionIgnoreOpts  = ignorePaths(".Kind", ".SortText", ".FilterText", ".Data")
+	autoImportIgnoreOpts  = ignorePaths(".Kind", ".SortText", ".FilterText", ".Data", ".LabelDetails", ".Detail", ".AdditionalTextEdits")
+	diagnosticsIgnoreOpts = ignorePaths(".Severity", ".Source", ".RelatedInformation")
 )
 
 func (f *FourslashTest) verifyCompletionItem(t *testing.T, prefix string, actual *lsproto.CompletionItem, expected *lsproto.CompletionItem) {
@@ -1815,7 +1826,12 @@ func (f *FourslashTest) ReplaceLine(t *testing.T, lineIndex int, text string) {
 func (f *FourslashTest) selectLine(t *testing.T, lineIndex int) {
 	script := f.getScriptInfo(f.activeFilename)
 	start := script.lineMap.LineStarts[lineIndex]
-	end := script.lineMap.LineStarts[lineIndex+1] - 1
+	var end core.TextPos
+	if lineIndex+1 >= len(script.lineMap.LineStarts) {
+		end = core.TextPos(len(script.content))
+	} else {
+		end = script.lineMap.LineStarts[lineIndex+1] - 1
+	}
 	f.selectRange(t, core.NewTextRange(int(start), int(end)))
 }
 
@@ -2474,6 +2490,65 @@ func (f *FourslashTest) VerifyBaselineInlayHints(
 	f.addResultToBaseline(t, "Inlay Hints", strings.Join(annotations, "\n\n"))
 }
 
+func (f *FourslashTest) VerifyDiagnostics(t *testing.T, expected []*lsproto.Diagnostic) {
+	f.verifyDiagnostics(t, expected, func(d *lsproto.Diagnostic) bool { return true })
+}
+
+// Similar to `VerifyDiagnostics`, but excludes suggestion diagnostics returned from server.
+func (f *FourslashTest) VerifyNonSuggestionDiagnostics(t *testing.T, expected []*lsproto.Diagnostic) {
+	f.verifyDiagnostics(t, expected, func(d *lsproto.Diagnostic) bool { return !isSuggestionDiagnostic(d) })
+}
+
+// Similar to `VerifyDiagnostics`, but includes only suggestion diagnostics returned from server.
+func (f *FourslashTest) VerifySuggestionDiagnostics(t *testing.T, expected []*lsproto.Diagnostic) {
+	f.verifyDiagnostics(t, expected, isSuggestionDiagnostic)
+}
+
+func (f *FourslashTest) verifyDiagnostics(t *testing.T, expected []*lsproto.Diagnostic, filterDiagnostics func(*lsproto.Diagnostic) bool) {
+	params := &lsproto.DocumentDiagnosticParams{
+		TextDocument: lsproto.TextDocumentIdentifier{
+			Uri: lsconv.FileNameToDocumentURI(f.activeFilename),
+		},
+	}
+	resMsg, result, resultOk := sendRequest(t, f, lsproto.TextDocumentDiagnosticInfo, params)
+	if resMsg == nil {
+		t.Fatal("Nil response received for diagnostics request")
+	}
+	if !resultOk {
+		t.Fatalf("Unexpected response type for diagnostics request: %T", resMsg.AsResponse().Result)
+	}
+
+	var actualDiagnostics []*lsproto.Diagnostic
+	if result.FullDocumentDiagnosticReport != nil {
+		actualDiagnostics = append(actualDiagnostics, result.FullDocumentDiagnosticReport.Items...)
+	}
+	actualDiagnostics = core.Filter(actualDiagnostics, filterDiagnostics)
+	emptyRange := lsproto.Range{}
+	expectedWithRanges := make([]*lsproto.Diagnostic, len(expected))
+	for i, diag := range expected {
+		if diag.Range == emptyRange {
+			rangesInFile := f.getRangesInFile(f.activeFilename)
+			if len(rangesInFile) == 0 {
+				t.Fatalf("No ranges found in file %s to assign to diagnostic with empty range", f.activeFilename)
+			}
+			diagWithRange := *diag
+			diagWithRange.Range = rangesInFile[0].LSRange
+			expectedWithRanges[i] = &diagWithRange
+		} else {
+			expectedWithRanges[i] = diag
+		}
+	}
+	if len(actualDiagnostics) == 0 && len(expectedWithRanges) == 0 {
+		return
+	}
+	assertDeepEqual(t, actualDiagnostics, expectedWithRanges, "Diagnostics do not match expected", diagnosticsIgnoreOpts)
+}
+
+func isSuggestionDiagnostic(diag *lsproto.Diagnostic) bool {
+	return diag.Tags != nil && len(*diag.Tags) > 0 ||
+		(diag.Severity != nil && *diag.Severity == lsproto.DiagnosticSeverityHint)
+}
+
 func isLibFile(fileName string) bool {
 	baseName := tspath.GetBaseFileName(fileName)
 	if strings.HasPrefix(baseName, "lib.") && strings.HasSuffix(baseName, ".d.ts") {

internal/fourslash/tests/gen/annotateWithTypeFromJSDoc2_test.go

@@ -0,0 +1,19 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+func TestAnnotateWithTypeFromJSDoc2(t *testing.T) {
+	t.Parallel()
+
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `// @Filename: test123.ts
+/** @type {number} */
+var [|x|]: string;`
+	f := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	f.VerifySuggestionDiagnostics(t, nil)
+}

internal/fourslash/tests/gen/autoImportModuleNone1_test.go

@@ -0,0 +1,37 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	. "github.com/microsoft/typescript-go/internal/fourslash/tests/util"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+func TestAutoImportModuleNone1(t *testing.T) {
+	t.Parallel()
+	t.Skip()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `// @module: none
+// @moduleResolution: bundler
+// @target: es5
+// @Filename: /node_modules/dep/index.d.ts
+export const x: number;
+// @Filename: /index.ts
+ x/**/`
+	f := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	f.VerifyCompletions(t, "", &fourslash.CompletionsExpectedList{
+		IsIncomplete: false,
+		ItemDefaults: &fourslash.CompletionsExpectedItemDefaults{
+			CommitCharacters: &DefaultCommitCharacters,
+			EditRange:        Ignored,
+		},
+		Items: &fourslash.CompletionsExpectedItems{
+			Excludes: []string{
+				"x",
+			},
+		},
+	})
+	f.ReplaceLine(t, 0, "import { x } from 'dep'; x;")
+	f.VerifyNonSuggestionDiagnostics(t, nil)
+}