public function testMimeAliases() { $image_file_obj = new FileObject($this->getTestFileByBaseName('photo.jpg')); $text_file_obj = FileObject::createFromBuffer('test and stuff'); $this->assertTrue($image_file_obj->isImage()); $this->assertFalse($text_file_obj->isImage()); $this->assertTrue($text_file_obj->isText()); $this->assertFalse($image_file_obj->isText()); }