in elasticsearch/src/http/transport.rs [1238:1248]
fn round_robin_next_multi() {
let connections = MultiNodeConnectionPool::round_robin(expected_addresses(), None);
for _ in 0..10 {
for expected in expected_addresses() {
let actual = connections.next();
assert_eq!(expected.as_str(), actual.url.as_str());
}
}
}