getEntityManager().flush();
getEntityManager().clear();
// execute sut - 10 day window
final int ten = 10;
List<DailyUsageSummary> results = sut.execute(new UsageMetricStreamSummaryRequest(ten, null));
// verfiy row count and averages.
assertEquals(2, results.size());
assertEquals(count * 2, results.get(0).getMessageCount());
assertEquals(count * 1, results.get(1).getMessageCount());