Is that a simple way to start a Mini Solr cluster in other project unittest？

[zhenyuan wei]

Hi all，
    I found it is too troublesome to start a solr mini cluster in my
project，the MiniSolrCloudCluster has too many properties related to the
folders of Solr Source Project. Is there a simple way to start a mini solr
cluster out of Solr Project，such as in my custom Project？