MagicMirror/tests/unit/functions/cmp_versions_spec.js

const path = require("path");
const { JSDOM } = require("jsdom");

describe("Test function cmpVersions in js/module.js", () => {
	let cmp;

	beforeAll((done) => {
		const dom = new JSDOM(
			`<script>var Class = {extend: () => { return {}; }};</script>\
				<script src="file://${path.join(__dirname, "..", "..", "..", "js", "module.js")}">`,
			{ runScripts: "dangerously", resources: "usable" }
		);
		dom.window.onload = () => {
			const { cmpVersions } = dom.window;
			cmp = cmpVersions;
			done();
		};
	});

	it("should return -1 when comparing 2.1 to 2.2", () => {
		expect(cmp("2.1", "2.2")).toBe(-1);
	});

	it("should be return 0 when comparing 2.2 to 2.2", () => {
		expect(cmp("2.2", "2.2")).toBe(0);
	});

	it("should be return 1 when comparing 1.1 to 1.0", () => {
		expect(cmp("1.1", "1.0")).toBe(1);
	});
});