import "mocha";
import { expect } from "chai";
import { is } from "../helpers";

describe('Thunk factory "is.iterable"', () => {
	it('recognizes values, that have "Symbol.iterator" method', () => {
		const thunk = is.iterable();
		const valid = [ "text", [], new Set() ];
		const invalid = [ 5, {} ];

		for (const value of valid)
			expect(thunk(value)).to.be.true;

		for (const value of invalid)
			expect(thunk(value)).to.be.false;
	});
});