Gauge yourGauge = repo.save(g2);
assertThat(yourGauge.getName(), is(notNullValue()));
assertTrue(repo.exists(yourGauge.getName()));
// Retrieve by name and compare for equality to previously saved instance.
Gauge result = repo.findOne(myGaugeName);
assertThat(result, equalTo(myGauge));
result = repo.findOne(yourGauge.getName());
assertThat(result, equalTo(yourGauge));