1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/static-init-invalid-lex-var.js b/js/src/tests/test262/language/statements/class/static-init-invalid-lex-var.js
new file mode 100644
index 0000000000..2aa0e4286b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/static-init-invalid-lex-var.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-class-definitions-static-semantics-early-errors
+description: Block cannot declare a lexically-scoped binding and function-scoped binding with the same name.
+info: |
+  ClassStaticBlockBody : ClassStaticBlockStatementList
+
+  - It is a Syntax Error if any element of the LexicallyDeclaredNames of
+    ClassStaticBlockStatementList also occurs in the VarDeclaredNames of
+    ClassStaticBlockStatementList.
+negative:
+  phase: parse
+  type: SyntaxError
+features: [class-static-block]
+---*/
+
+$DONOTEVALUATE();
+
+class C {
+  static {
+    let x;
+    var x;
+  }
+}