'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");
};