1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/keywords/ident-ref-do.js b/js/src/tests/test262/language/keywords/ident-ref-do.js
new file mode 100644
index 0000000000..1aa9050289
--- /dev/null
+++ b/js/src/tests/test262/language/keywords/ident-ref-do.js
@@ -0,0 +1,21 @@
+// |reftest| error:SyntaxError
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+es5id: 7.6.1.1_A1.7
+description: Checking if execution of "do=1" fails
+info: |
+  Identifier : IdentifierName but not ReservedWord
+
+  It is a Syntax Error if StringValue of IdentifierName is the same String
+  value as the StringValue of any ReservedWord except for yield.
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+do = 1;