Does SolrTestCaseJ4 use solr.xml?

[kelong]

I'm using SolrTestCaseJ4 to do some test for my program. I want to create
core with different core name, shard name, collection name, data dir ect.
But when I change the solr.xml core section. SolrTestCaseJ4 still create
core with default. So can I let SolrTestCaseJ4 use solr.xml information to
create core or is there other way to do it?

Thanks!