assertThat(gauges.size(), equalTo(2));
repo.delete(myGauge);
assertThat(repo.findOne(myGaugeName), is(nullValue()));
repo.deleteAll();
assertThat(repo.findOne(yourGaugeName), is(nullValue()));
assertEquals(0, repo.count());
repo.save(Arrays.asList(g1, g2));
assertThat(repo.count(), equalTo(2L));