1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/length.js b/js/src/tests/test262/built-ins/String/length.js
new file mode 100644
index 0000000000..62da509bdb
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/length.js
@@ -0,0 +1,30 @@
+// 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-properties-of-string-instances-length
+description: The "length" property of String objects
+info: |
+  [...]
+  4. Return ? StringCreate(s, ? GetPrototypeFromConstructor(NewTarget,
+     "%StringPrototype%")).
+includes: [propertyHelper.js]
+---*/
+
+var str = new String('');
+
+verifyNotEnumerable(str, 'length');
+verifyNotWritable(str, 'length');
+verifyNotConfigurable(str, 'length');
+
+assert.sameValue(str.length, 0, 'empty string');
+
+str = new String(' ');
+assert.sameValue(str.length, 1, 'whitespace');
+
+str = new String(' \b ');
+assert.sameValue(str.length, 3, 'character escape (U+008, "backspace")');
+
+str = new String('\ud834\udf06');
+assert.sameValue(str.length, 2, 'Unicode escape (surrogate pair)');
+
+reportCompare(0, 0);