Description
The new TestSolrCoreParser class directly instantiates a SolrCoreParser and initialises it with custom query builders, the tests then check that custom xml parses correctly and that the resulting Query object is an instance of the correct class.
In comparison, the existing TestXmlQParserPlugin test indirectly instantiates and initialises a SolrCoreParser via the solrconfig-testxmlparser.xml and then executes the custom xml queries.