@Test
public void testIsEmpty() {

    L locator = getLocator();
    K key = getKey();
    V value = getValue();
    record = getRecord(locator, key);
    Assert.assertTrue(record.isEmpty());
    record.append(getRevision(locator, key, value));
    Assert.assertFalse(record.isEmpty());
    record.append(getRevision(locator, key, value));
    Assert.assertTrue(record.describe().isEmpty());
    Assert.assertFalse(record.isEmpty());
}