/**
* Test get & set code by callable.
*
* @return void
*
* @since 1.0
*
* @covers Joomla\Console\Command\AbstractCommand::getHandler
*/
public function testSetAndgetCallableHandler()
{
$this->instance->setHandler(array($this, 'fakeHandler'));
$code = $this->instance->getHandler();
$this->assertTrue(is_callable($code), 'Handler not exists');
$this->assertEquals('Hello', $this->instance->execute(), 'Handler result failure.');
$this->instance->setHandler(null);
$this->assertEquals(null, $this->instance->getHandler(), 'Handler should have been cleaned');
}