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

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

test('registerChild with unknown node id currently throws (known robustness gap)', () => {
  const inst = Object.create(NodeClass.prototype);
  const node = makeNodeStub();

  inst.node = node;
  inst.RED = makeREDStub();
  inst.source = {
    childRegistrationUtils: {
      registerChild() {},
    },
  };

  inst._attachInputHandler();

  assert.throws(() => {
    node._handlers.input(
      { topic: 'registerChild', payload: 'missing-child', positionVsParent: 'upstream' },
      () => {},
      () => {},
    );
  });
});