1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/prototype/exec/u-lastindex-adv.js b/js/src/tests/test262/built-ins/RegExp/prototype/exec/u-lastindex-adv.js
new file mode 100644
index 0000000000..405fc8cd43
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/prototype/exec/u-lastindex-adv.js
@@ -0,0 +1,24 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Advancement of lastIndex
+es6id: 21.2.5.2.2
+info: |
+    21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S )
+
+    [...]
+    12. Let flags be the value of R’s [[OriginalFlags]] internal slot.
+    13. If flags contains "u", let fullUnicode be true, else let fullUnicode be
+        false.
+    [...]
+    15. Repeat, while matchSucceeded is false
+        [...]
+        c. If r is failure, then
+           [...]
+           ii. Let lastIndex be AdvanceStringIndex(S, lastIndex, fullUnicode).
+---*/
+
+assert.sameValue(/\udf06/u.exec('\ud834\udf06'), null);
+
+reportCompare(0, 0);