MagicMirror/tests/e2e/serveronly_spec.js

const delay = (time) => {
	return new Promise((resolve) => setTimeout(resolve, time));
};

describe("App environment", () => {
	let serverProcess;
	beforeAll(async () => {
		process.env.MM_CONFIG_FILE = "tests/configs/default.js";
		serverProcess = await require("child_process").spawn("npm", ["run", "server"], { env: process.env, detached: true });
		// we have to wait until the server is startet
		await delay(2000);
	});
	afterAll(async () => {
		await process.kill(-serverProcess.pid);
	});

	it("get request from http://localhost:8080 should return 200", async () => {
		const res = await fetch("http://localhost:8080");
		expect(res.status).toBe(200);
	});

	it("get request from http://localhost:8080/nothing should return 404", async () => {
		const res = await fetch("http://localhost:8080/nothing");
		expect(res.status).toBe(404);
	});
});