1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/unicode_restricted_identity_escape_x.js b/js/src/tests/test262/built-ins/RegExp/unicode_restricted_identity_escape_x.js
new file mode 100644
index 0000000000..24a1d9f90f
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/unicode_restricted_identity_escape_x.js
@@ -0,0 +1,36 @@
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: B.1.4 is not applied for Unicode RegExp - Incomplete hexadecimal escape sequences
+info: |
+    The compatibility extensions defined in B.1.4 Regular Expressions Patterns
+    are not applied for Unicode RegExp.
+    Tested extension: "IdentityEscape[U] :: [~U] SourceCharacter but not c"
+es6id: 21.1.2
+---*/
+
+// Incomplete HexEscapeSequence in AtomEscape not parsed as IdentityEscape.
+//
+// AtomEscape[U] :: CharacterEscape[?U]
+// CharacterEscape[U] :: HexEscapeSequence
+assert.throws(SyntaxError, function() {
+  RegExp("\\x", "u");
+}, 'RegExp("\\x", "u"): ');
+assert.throws(SyntaxError, function() {
+  RegExp("\\x1", "u");
+}, 'RegExp("\\x1", "u"): ');
+
+
+// Incomplete HexEscapeSequence in ClassEscape not parsed as IdentityEscape.
+//
+// ClassEscape[U] :: CharacterEscape[?U]
+// CharacterEscape[U] :: HexEscapeSequence
+assert.throws(SyntaxError, function() {
+  RegExp("[\\x]", "u");
+}, 'RegExp("[\\x]", "u"): ');
+assert.throws(SyntaxError, function() {
+  RegExp("[\\x1]", "u");
+}, 'RegExp("[\\x1]", "u"): ');
+
+reportCompare(0, 0);