import assert from 'node:assert/strict';
import net from 'node:net';
import test from 'node:test';

import { GATE_SUITE_PORTS, assertLoopbackPortAvailable } from './preflight.mjs';

test('gate suites pin isolated loopback ports', () => {
  assert.equal(GATE_SUITE_PORTS['runtime-sanitized-data-upgrade'], 19085);
  assert.equal(GATE_SUITE_PORTS['page-data-product-scenarios'], 19086);
  assert.equal(GATE_SUITE_PORTS['page-content-delivery-scenarios'], 19087);
});

test('assertLoopbackPortAvailable rejects an occupied port', async () => {
  const server = net.createServer();
  await new Promise((resolve) => server.listen(0, '127.0.0.1', resolve));
  const { port } = server.address();
  await assert.rejects(
    () => assertLoopbackPortAvailable(port),
    /already in use/,
  );
  await new Promise((resolve) => server.close(resolve));
  await assertLoopbackPortAvailable(port);
});