diff --git a/test/test.js b/test/test.js
index 200cf54f7..037383d8a 100644
--- a/test/test.js
+++ b/test/test.js
@@ -277,7 +277,10 @@
     'Uint32Array'
   ];
 
-  /** Used to check for problems removing whitespace */
+  /**
+   * Used to check for problems removing whitespace. For a whitespace reference
+   * see V8's unit test https://code.google.com/p/v8/source/browse/branches/bleeding_edge/test/mjsunit/whitespaces.js.
+   */
   var whitespace = ' \t\x0B\f\xA0\ufeff\n\r\u2028\u2029\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000';
 
   /**
@@ -11411,7 +11414,8 @@
     });
 
     test('`_.' + methodName + '` should not remove non-whitespace characters', 1, function() {
-      var problemChars = '\x85\u200b',
+      // zero-width space (zws), next line character (nel), and non-character (bom) are not whitespace
+      var problemChars = '\x85\u200b\ufffe',
           string = problemChars + 'a b c' + problemChars;
 
       strictEqual(func(string), string);