1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/built-ins/unescape/two-ignore-non-hex.js b/js/src/tests/test262/annexB/built-ins/unescape/two-ignore-non-hex.js
new file mode 100644
index 0000000000..04d8948211
--- /dev/null
+++ b/js/src/tests/test262/annexB/built-ins/unescape/two-ignore-non-hex.js
@@ -0,0 +1,37 @@
+// 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-unescape-string
+es6id: B.2.1.2
+description: >
+    Does not transform two-character patterns that contain non-hexadecimal
+    digits
+info: |
+    [...]
+    5. Repeat, while k ≠ length,
+       [...]
+       a. Let c be the code unit at index k within string.
+       b. If c is %, then
+          [...]
+          ii. Else if k ≤ length-3 and the two code units at indices k+1 and
+              k+2 within string are both hexadecimal digits, then
+              1. Let c be the code unit whose value is the integer represented
+                 by two zeroes plus the two hexadecimal digits at indices k+1
+                 and k+2 within string.
+              2. Increase k by 2.
+       [...]
+---*/
+
+assert.sameValue(unescape('%0%0'), '%0%0');
+
+assert.sameValue(unescape('%0g0'), '%0g0');
+assert.sameValue(unescape('%0G0'), '%0G0');
+assert.sameValue(unescape('%g00'), '%g00');
+assert.sameValue(unescape('%G00'), '%G00');
+
+assert.sameValue(unescape('%0u0'), '%0u0');
+assert.sameValue(unescape('%0U0'), '%0U0');
+assert.sameValue(unescape('%u00'), '%u00');
+assert.sameValue(unescape('%U00'), '%U00');
+
+reportCompare(0, 0);