add unittest
add unittest

clarity-project/SolrBundle,clarity-project/SolrBundle,zquintana/SunSearchBundle,starsystemsindia/SolrBundle,frank-und-freunde/SolrBundle,cegeka/fd-solr-bundle,zquintana/SunSearchBundle,floriansemm/SolrBundle,drdk/SolrBundle,floriansemm/SolrBundle,drdk/SolrBundle,andythorne/SolrBundle