ensure-natural-number.js

"use strict";

module.exports = function (t, a) {
	a.throws(function () {
 t(undefined);
}, TypeError, "Undefined");
	a(t(null), 0, "Null");
	a(t(2), 2, "Number");
	a.throws(function () {
 t(-2);
}, TypeError, "Negative");
	a.throws(function () {
 t(2.34);
}, TypeError, "Float");
	a(t("23"), 23, "Numeric string");
	a.throws(function () {
 t(NaN);
}, TypeError, "NaN");
	a.throws(function () {
 t(Infinity);
}, TypeError, "Infinity");
};