public function testGetAndSetMimeResolver()
{
$mimeReolver = $this->getMockBuilder(MimeResolver::class)->disableOriginalConstructor()->getMock();
$resolver = new AliasPathStackResolver(array('my/alias/' => __DIR__));
$resolver->setMimeResolver($mimeReolver);
$returned = $resolver->getMimeResolver();
$this->assertEquals($mimeReolver, $returned);
}