public function testRequires()
{
$this->config->addTarget('testing.js', array('files' => array('one.js', 'two.js')));
$this->config->addTarget('child.js', array('files' => array('one.js', 'two.js'), 'require' => 'base.js'));
$this->assertEquals([], $this->config->requires('testing.js'));
$this->assertEquals(['base.js'], $this->config->requires('child.js'));
}