vendor tsgo

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

@@ -0,0 +1,37 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+// Regression test for https://github.com/microsoft/typescript-go/issues/3638
+//
+// A `textDocument/hover` on a JSX intrinsic element used to cause the
+// subsequent `textDocument/diagnostic` pull to spuriously report
+// TS2304: Cannot find name 'div'.
+func TestHoverThenDiagnosticsJsxIntrinsic(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `// @Filename: /tsconfig.json
+{ "compilerOptions": { "strict": true, "jsx": "preserve" } }
+// @Filename: /jsx.d.ts
+declare namespace JSX {
+    interface Element { }
+    interface IntrinsicElements {
+        div: any;
+    }
+}
+// @Filename: /file.tsx
+export default function Home() {
+    return <di/*1*/v>hi</div>;
+}`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	// Hover on the intrinsic element first...
+	f.VerifyQuickInfoAt(t, "1", "(property) JSX.IntrinsicElements.div: any", "")
+	// ...then a subsequent diagnostic pull must not invent a TS2304 for `div`.
+	f.VerifyNoErrors(t)
+}