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diff --git a/js/src/tests/test262/annexB/language/literals/regexp/quantifiable-assertion-followed-by.js b/js/src/tests/test262/annexB/language/literals/regexp/quantifiable-assertion-followed-by.js
new file mode 100644
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+++ b/js/src/tests/test262/annexB/language/literals/regexp/quantifiable-assertion-followed-by.js
@@ -0,0 +1,70 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-regular-expressions-patterns
+es6id: B.1.4
+description: Quantifiable assertions `?=` ("followed by")
+info: |
+    Term[U] ::
+         [~U] QuantifiableAssertion Quantifier
+
+    QuantifiableAssertion ::
+         ( ?= Disjunction )
+         ( ?! Disjunction )
+
+    The production Term::QuantifiableAssertionQuantifier evaluates the same as
+    the production Term::AtomQuantifier but with QuantifiableAssertion
+    substituted for Atom.
+
+    The production Assertion::QuantifiableAssertion evaluates by evaluating
+    QuantifiableAssertion to obtain a Matcher and returning that Matcher.
+
+    Assertion (21.2.2.6) evaluation rules for the Assertion::(?=Disjunction)
+    and Assertion::(?!Disjunction) productions are also used for the
+    QuantifiableAssertion productions, but with QuantifiableAssertion
+    substituted for Assertion.
+---*/
+
+var match;
+
+match = /.(?=Z)*/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'a', 'quantifier: *');
+
+match = /.(?=Z)+/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'b', 'quantifier: +');
+
+match = /.(?=Z)?/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'a', 'quantifier: ?');
+
+match = /.(?=Z){2}/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'b', 'quantifier: { DecimalDigits }');
+
+match = /.(?=Z){2,}/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'b', 'quantifier: { DecimalDigits , }');
+
+match = /.(?=Z){2,3}/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(
+  match[0], 'b', 'quantifier: { DecimalDigits , DecimalDigits }'
+);
+
+match = /.(?=Z)*?/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'a', 'quantifier: * ?');
+
+match = /.(?=Z)+?/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'b', 'quantifier: + ?');
+
+match = /.(?=Z)??/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'a', 'quantifier: ? ?');
+
+match = /.(?=Z){2}?/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'b', 'quantifier: { DecimalDigits } ?');
+
+match = /.(?=Z){2,}?/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(match[0], 'b', 'quantifier: { DecimalDigits , } ?');
+
+match = /.(?=Z){2,3}?/.exec('a bZ cZZ dZZZ eZZZZ');
+assert.sameValue(
+  match[0], 'b', 'quantifier: { DecimalDigits , DecimalDigits } ?'
+);
+
+reportCompare(0, 0);