1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/logical-assignment/lgcl-or-assignment-operator-unresolved-rhs.js b/js/src/tests/test262/language/expressions/logical-assignment/lgcl-or-assignment-operator-unresolved-rhs.js
new file mode 100644
index 0000000000..6a41c574e9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/logical-assignment/lgcl-or-assignment-operator-unresolved-rhs.js
@@ -0,0 +1,18 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: >
+    ReferenceError is not thrown if the AssignmentExpression of a Logical
+    Assignment operator(||=) evaluates to an unresolvable reference and the
+    AssignmentExpression is not evaluated.
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 2;
+
+assert.sameValue(value ||= unresolved, 2, "value");
+
+reportCompare(0, 0);