final DomainMapper<StreamPopularHashTagsRequest, StreamPopularHashTagsReportDTO> popularHashTagsMapper = context
.mock(DomainMapper.class);
final StreamPopularHashTagsRequest request = new StreamPopularHashTagsRequest();
final StreamPopularHashTagsReportDTO response = new StreamPopularHashTagsReportDTO(null, null);
final PrincipalActionContext actionContext = context.mock(PrincipalActionContext.class);
final ArrayList<String> hashTags = new ArrayList<String>();
hashTags.add("#foo");
hashTags.add("#bar");
response.setPopularHashTags(hashTags);