/** Test method for {@link net.sf.hajdbc.balancer.AbstractBalancer#iterator()}. */
@Test
public void iterator() {
Balancer<Void, MockDatabase> balancer =
this.factory.createBalancer(Collections.<MockDatabase>emptySet());
Iterator<MockDatabase> result = balancer.iterator();
assertFalse(result.hasNext());
balancer = this.factory.createBalancer(Collections.singleton(this.databases[0]));
result = balancer.iterator();
assertTrue(result.hasNext());
assertEquals(this.databases[0], result.next());
assertFalse(result.hasNext());
balancer =
this.factory.createBalancer(
new HashSet<MockDatabase>(Arrays.asList(this.databases[0], this.databases[1])));
result = balancer.iterator();
assertTrue(result.hasNext());
assertEquals(this.databases[0], result.next());
assertTrue(result.hasNext());
assertEquals(this.databases[1], result.next());
assertFalse(result.hasNext());
balancer =
this.factory.createBalancer(new HashSet<MockDatabase>(Arrays.asList(this.databases)));
result = balancer.iterator();
assertTrue(result.hasNext());
assertEquals(this.databases[0], result.next());
assertTrue(result.hasNext());
assertEquals(this.databases[1], result.next());
assertTrue(result.hasNext());
assertEquals(this.databases[2], result.next());
assertFalse(result.hasNext());
}
