text: import test from 'ava';
  import message from './message';
  
  test('should return an empty string for empty input', t => {
  	t.deepEqual(message(), '');
  });
  
  test('should return an empty string for empty input array', t => {
  	t.deepEqual(message([]), '');
  });
  
  test('should filter falsy values', t => {
  	t.deepEqual(message([null, 'some', null, 'message', null]), 'some message');
  });
  