reactor/test/basic/register-child.basic.test.js

const test = require('node:test');
const assert = require('node:assert/strict');

const NodeClass = require('../../src/nodeClass');
const { makeNodeStub } = require('../helpers/factories');

// Post-refactor: BaseNodeAdapter handles registration via _scheduleRegistration
// (was _registerChild). Topic moved from 'registerChild' to 'child.register'.
test('_scheduleRegistration emits delayed child.register message on output 2', () => {
  const inst = Object.create(NodeClass.prototype);
  const node = makeNodeStub();

  inst.node = node;
  inst.config = { functionality: { positionVsParent: 'downstream', distance: null } };

  const originalSetTimeout = global.setTimeout;
  const delays = [];
  global.setTimeout = (fn, ms) => { delays.push(ms); fn(); return 1; };

  try {
    inst._scheduleRegistration();
  } finally {
    global.setTimeout = originalSetTimeout;
  }

  assert.deepEqual(delays, [100]);
  assert.equal(node._sent.length, 1);
  assert.equal(Array.isArray(node._sent[0]), true);
  assert.equal(node._sent[0][2].topic, 'child.register');
  assert.equal(node._sent[0][2].payload, node.id);
  assert.equal(node._sent[0][2].positionVsParent, 'downstream');
});