string.js 848 Bytes
"use strict";

var iteratorSymbol = require("es6-symbol").iterator;

module.exports = function (T, a) {
	var it = new T("foobar");

	a(it[iteratorSymbol](), it, "@@iterator");
	a.deep(it.next(), { done: false, value: "f" }, "#1");
	a.deep(it.next(), { done: false, value: "o" }, "#2");
	a.deep(it.next(), { done: false, value: "o" }, "#3");
	a.deep(it.next(), { done: false, value: "b" }, "#4");
	a.deep(it.next(), { done: false, value: "a" }, "#5");
	a.deep(it.next(), { done: false, value: "r" }, "#6");
	a.deep(it.next(), { done: true, value: undefined }, "End");

	a.h1("Outside of BMP");
	it = new T("r💩z");
	a.deep(it.next(), { done: false, value: "r" }, "#1");
	a.deep(it.next(), { done: false, value: "💩" }, "#2");
	a.deep(it.next(), { done: false, value: "z" }, "#3");
	a.deep(it.next(), { done: true, value: undefined }, "End");
};