import "mocha";
import { expect } from "chai";
import { is, funcs, numbers, objects } from "../helpers";

describe('Thunk "is._symbol"', () => {
	const valid = [ Symbol.species, Symbol.iterator, Symbol("custom") ];

	it("recognizes symbols", () => {
		const invalid: any[] = [ ...funcs, ...numbers, ...objects ];

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

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

	it("rejects composite symbols", () => {
		for (const value of valid.map(Object))
			expect(is._symbol(value)).to.be.false;
	});
});