From 5da6f981e9c6eb6d8af9ad8be737fb2245cf2fdb Mon Sep 17 00:00:00 2001
From: Doug Ilijev <dilijev@users.noreply.github.com>
Date: Tue, 28 Mar 2017 17:09:16 -0700
Subject: [PATCH] Add escape-above-astral.js to cover escaping code units as
encoded from extended unicode escape. (#942)
---
.../built-ins/escape/escape-above-astral.js | 22 +++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 test/annexB/built-ins/escape/escape-above-astral.js
diff --git a/test/annexB/built-ins/escape/escape-above-astral.js b/test/annexB/built-ins/escape/escape-above-astral.js
new file mode 100644
index 0000000000..0cbba08d69
--- /dev/null
+++ b/test/annexB/built-ins/escape/escape-above-astral.js
@@ -0,0 +1,22 @@
+// Copyright (C) 2017 Microsoft Corporation. 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 from string with extended Unicode escape sequence
+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('\u{10401}'), '%uD801%uDC01', '\\u{10401} => \\uD801\\uDC01 (surrogate pairs encoded in string)'
+);
--
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