test clearing approved sites for a client that does n't have any stored approved sites . ensure that the repository 's remove method is never called in this case . concode_field_sep StatsService statsService concode_elem_sep String clientId concode_elem_sep ApprovedSiteService service concode_elem_sep ClientDetailsEntity client concode_elem_sep ApprovedSite site3 concode_elem_sep ApprovedSite site1 concode_elem_sep ApprovedSiteRepository repository concode_elem_sep ApprovedSite site2 concode_field_sep void clearApprovedSitesForClient_success concode_elem_sep void prepare