--- /dev/null
+var fails = require('../internals/fails');
+var whitespaces = require('../internals/whitespaces');
+
+var non = '\u200B\u0085\u180E';
+
+// check that a method works with the correct list
+// of whitespaces and has a correct name
+module.exports = function (METHOD_NAME) {
+ return fails(function () {
+ return !!whitespaces[METHOD_NAME]() || non[METHOD_NAME]() != non || whitespaces[METHOD_NAME].name !== METHOD_NAME;
+ });
+};