jsdoc/packages/jsdoc-util/test/specs/lib/log.js

describe('@jsdoc/util/lib/log', () => {
  const EventBus = require('../../../lib/bus');
  const log = require('../../../lib/log');

  const fns = ['debug', 'error', 'info', 'fatal', 'verbose', 'warn'];

  it('is an object', () => {
    expect(log).toBeObject();
  });

  it('provides the expected functions', () => {
    fns.forEach((fn) => {
      expect(log[fn]).toBeFunction();
    });
  });

  describe('functions', () => {
    const bus = new EventBus('jsdoc');

    it('sends events to the event bus', () => {
      fns.forEach((fn) => {
        let event;

        bus.once(`logger:${fn}`, (e) => {
          event = e;
        });
        log[fn]('testing');

        expect(event).toBe('testing');
      });
    });
  });
});