vendor tsgo

tools/tsgo/internal/fourslash/tests/autoImportNodeBuiltinNodenext_test.go

@@ -0,0 +1,57 @@
+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/ls"
+	"github.com/microsoft/typescript-go/internal/lsp/lsproto"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+// TestAutoImportNodeBuiltinNodenext is a regression test for
+// https://github.com/microsoft/typescript-go/issues/2555, where auto-imports
+// for Node.js built-in modules (e.g. "fs") were not appearing when using
+// module: nodenext and types: ["node"].
+func TestAutoImportNodeBuiltinNodenext(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `// @Filename: /tsconfig.json
+{ "compilerOptions": { "module": "nodenext", "types": ["node"] } }
+// @Filename: /package.json
+{ "type": "module" }
+// @Filename: /node_modules/@types/node/package.json
+{ "name": "@types/node", "version": "22.0.0" }
+// @Filename: /node_modules/@types/node/index.d.ts
+declare module "fs" {
+    export function existsSync(path: string): boolean;
+    export function mkdirSync(path: string, options?: { recursive?: boolean }): void;
+}
+declare module "node:fs" { export * from "fs"; }
+// @Filename: /index.ts
+existsSync/**/`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	f.VerifyCompletions(t, "", &fourslash.CompletionsExpectedList{
+		IsIncomplete: false,
+		ItemDefaults: &fourslash.CompletionsExpectedItemDefaults{
+			CommitCharacters: &DefaultCommitCharacters,
+			EditRange:        Ignored,
+		},
+		Items: &fourslash.CompletionsExpectedItems{
+			Includes: []fourslash.CompletionsExpectedItem{
+				&lsproto.CompletionItem{
+					Label: "existsSync",
+					Data: &lsproto.CompletionItemData{
+						AutoImport: &lsproto.AutoImportFix{
+							ModuleSpecifier: "node:fs",
+						},
+					},
+					AdditionalTextEdits: fourslash.AnyTextEdits,
+					SortText:            new(string(ls.SortTextAutoImportSuggestions)),
+				},
+			},
+		},
+	})
+}