temporeest/packages/model-runtime-ts/src/__tests__/Model.test.ts

import { debugContext } from '@aphro/context-runtime-ts';
import { viewer } from '@aphro/context-runtime-ts/lib/viewer';
import { asId } from '@strut/sid';
import Node from '../Node.js';

class TestModel extends Node<{ thing: number; foo: number }> {
  readonly id = asId<this>('foo');
  readonly spec = {} as any;
}

const context = debugContext(viewer(asId('1')));
test('Data is frozen and sealed', () => {
  const m = new TestModel(context, { thing: 1, foo: 2 });
  const data = m._d();
  expect(() => (data.foo = 0)).toThrow();
  //@ts-ignore
  expect(() => (data.bar = 1)).toThrow();
});

test('Generators unsubscribe when complete', () => {
  const m = new TestModel(context, { thing: 1, foo: 2 });
  const gen = m.generator();

  expect(m.numObservers).toBe(1);
  gen.return(null);
  expect(m.numObservers).toBe(0);

  const keyedGen = m.generatorOn(['thing', 'foo']);
  expect(m.numObservers).toBe(2);
  keyedGen.return(null);
  expect(m.numObservers).toBe(0);
});

test('Generators unsubscribe when throwing', () => {
  const m = new TestModel(context, { thing: 1, foo: 2 });
  const gen = m.generator();

  expect(m.numObservers).toBe(1);
  gen.throw(new Error());
  expect(m.numObservers).toBe(0);

  const keyedGen = m.generatorOn(['thing', 'foo']);
  expect(m.numObservers).toBe(2);
  keyedGen.throw(null);
  expect(m.numObservers).toBe(0);
});

// test('Generators work for global notifications', async () => {
//   const m = new TestModel(context, { thing: 1, foo: 2 });
//   const gen = m.generator();

//   const next = gen.next();

// });

// test('Generators work for keyed notifications', () => {});