@Test(dependsOnMethods = {"testUpdateCSN"})
public void testIsEmpty() throws Exception {
final MultiDomainServerState state = new MultiDomainServerState();
assertTrue(state.isEmpty());
assertTrue(state.update(dn1, csn1));
assertFalse(state.isEmpty());
assertThat(state).containsOnly(dn1);
assertTrue(state.update(dn2, csn2));
assertFalse(state.isEmpty());
assertThat(state).containsOnly(dn1, dn2);
state.clear();
assertTrue(state.isEmpty());
}
