index.js

const notifier = require('../');

describe('constructors', function() {
  it('should expose a default selected instance', function() {
    expect(notifier.notify).toBeTruthy();
  });

  it('should expect only a function callback as second parameter', function() {
    function cb() {}
    expect(notifier.notify({ title: 'My notification' }, cb)).toBeTruthy();
  });

  it('should throw error when second parameter is not a function', function() {
    const wrongParamOne = 200;
    const wrongParamTwo = 'meaningless string';
    const data = { title: 'My notification' };

    const base = notifier.notify.bind(notifier, data);
    expect(base.bind(notifier, wrongParamOne)).toThrowError(
      /^The second argument/
    );
    expect(base.bind(notifier, wrongParamTwo)).toThrowError(
      /^The second argument/
    );
  });

  it('should expose a default selected constructor function', function() {
    expect(notifier).toBeInstanceOf(notifier.Notification);
  });

  it('should expose constructor for WindowsBalloon', function() {
    expect(notifier.WindowsBalloon).toBeTruthy();
  });

  it('should expose constructor for WindowsToaster', function() {
    expect(notifier.WindowsToaster).toBeTruthy();
  });

  it('should expose constructor for NotifySend', function() {
    expect(notifier.NotifySend).toBeTruthy();
  });

  it('should expose constructor for Growl', function() {
    expect(notifier.Growl).toBeTruthy();
  });
});