1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/built-ins/escape/escape-above.js b/js/src/tests/test262/annexB/built-ins/escape/escape-above.js
new file mode 100644
index 0000000000..347530476e
--- /dev/null
+++ b/js/src/tests/test262/annexB/built-ins/escape/escape-above.js
@@ -0,0 +1,32 @@
+// 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-escape-string
+es6id: B.2.1.1
+description: Escaping of code units above 255
+info: |
+    [...]
+    5. Repeat, while k < length,
+       a. Let char be the code unit (represented as a 16-bit unsigned integer)
+          at index k within string.
+       [...]
+       c. Else if char ≥ 256, then
+          i. Let S be a String containing six code units "%uwxyz" where wxyz
+             are the code units of the four uppercase hexadecimal digits
+             encoding the value of char.
+       [...]
+---*/
+
+assert.sameValue(
+  escape('\u0100\u0101\u0102'), '%u0100%u0101%u0102', '\\u0100\\u0101\\u0102'
+);
+
+assert.sameValue(
+  escape('\ufffd\ufffe\uffff'), '%uFFFD%uFFFE%uFFFF', '\\ufffd\\ufffd\\ufffd'
+);
+
+assert.sameValue(
+  escape('\ud834\udf06'), '%uD834%uDF06', '\\ud834\\udf06 (surrogate pairs)'
+);
+
+reportCompare(0, 0);