/**
* Test set code.
*
* @return void
*
* @since 2.0
*/
public function testSetHandler()
{
$this->instance->setHandler(function ($command) {
return 221;
});
$this->assertInstanceOf('\\Closure', $this->instance->getRootCommand()->getHandler(), 'Code need to be a closure.');
$this->assertEquals(221, $this->instance->getRootCommand()->setIO(new MockIO())->execute());
}
