spaghiajoeojo / express-beans

import { registeredBeans, registeredMethods } from '@/core';

import { Shutdown } from '@/hooks/decorators/Shutdown';

import { Executor } from '@/core/Executor';

jest.mock('@/core', () => ({

  registeredBeans: new Map(),

  registeredMethods: new Map(),

  logger: {

    info: jest.fn(),

    debug: jest.fn(),

    error: jest.fn(),

  },

}));

describe('Shutdown.ts', () => {

  beforeEach(() => {

    jest.resetAllMocks();

    registeredMethods.clear();

    registeredBeans.clear();

    Executor.stopLifecycle();

  });

  it('execute a Shutdown function', async () => {

    // GIVEN

    const mock = jest.fn();

    class Class {

      exited: boolean = false;

    }

    const bean: any = new Class();

    registeredMethods.set(bean.exit, bean);

    registeredBeans.set('Class', bean);

    await flushPromises();

    await Executor.execute();

    await Executor.stopLifecycle();

    // THEN

    expect(bean.exited)

      .toBe(true);

    expect(mock).toHaveBeenCalled();

  });

  it('execute a Shutdown async function', async () => {

    // GIVEN

    const mock = jest.fn();

    class Class {

      exited: boolean = false;

      @Shutdown

      async exit() {

        this.exited = true;

        mock();

      }

    }

    const bean: any = new Class();

    registeredMethods.set(bean.exit, bean);

    registeredBeans.set('Class', bean);

    await flushPromises();

    await Executor.execute();

    await Executor.stopLifecycle();

    // THEN

    expect(bean.exited)

      .toBe(true);

    expect(mock).toHaveBeenCalled();

  });

});