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diff --git a/js/src/tests/test262/annexB/language/expressions/logical-assignment/emulates-undefined-or.js b/js/src/tests/test262/annexB/language/expressions/logical-assignment/emulates-undefined-or.js
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+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: >
+  ToBoolean returns `false` for [[IsHTMLDDA]] object; rval is evaluated.
+info: |
+  AssignmentExpression : LeftHandSideExpression ||= AssignmentExpression
+
+  1. Let lref be the result of evaluating LeftHandSideExpression.
+  2. Let lval be ? GetValue(lref).
+  3. Let lbool be ! ToBoolean(lval).
+  [...]
+  7. Perform ? PutValue(lref, rval).
+  8. Return rval.
+
+  The [[IsHTMLDDA]] Internal Slot / Changes to ToBoolean
+
+  1. If argument has an [[IsHTMLDDA]] internal slot, return false.
+  2. Return true.
+features: [IsHTMLDDA, logical-assignment-operators]
+---*/
+
+var value = $262.IsHTMLDDA;
+assert.sameValue(value ||= 2, 2);
+assert.sameValue(value, 2);
+
+reportCompare(0, 0);