--- /dev/null
+'use strict';
+
+module.exports = function (t, a) {
+ var r = /raz/;
+ a(t(r), r, "Direct");
+ r = new RegExp('foo');
+ a(t(r), r, "Constructor");
+ a.throws(function () {
+ t({});
+ }, "Object");
+ a.throws(function () {
+ t(function () {});
+ }, "Function");
+ a.throws(function () {
+ t({ exec: function () { return 20; } });
+ }, "Plain object");
+};