public function testCustomImageClassConverterWorks()
 {
     $test_class_name = 'OneMightyRoar\\PhpFileManager\\ImageObject';
     $image_file_obj = new FileObject($this->getTestFileByBaseName('photo.jpg'));
     $image_file_obj->setImageClass($test_class_name);
     $this->assertSame($test_class_name, $image_file_obj->getImageClass());
     $this->assertTrue($image_file_obj->getImageObject() instanceof FileObject);
     $this->assertTrue($image_file_obj->getImageObject() instanceof $test_class_name);
 }