--- /dev/null
+'use strict';
+
+module.exports = function (t, a) {
+ var x = {}, y = {}, z;
+ z = t(x);
+ a.not(z, x, "Returns different object");
+ a.deep(z, {}, "Empty on empty");
+
+ x = { foo: 'bar', a: 0, b: false, c: '', d: '0', e: null, bar: y,
+ elo: undefined };
+ z = t(x);
+ a.deep(z, { foo: 'bar', a: 0, b: false, c: '', d: '0', bar: y },
+ "Cleared null values");
+};