1--TEST--
2Causal consistency: default read concern includes afterClusterTime but not level
3--SKIPIF--
4<?php require __DIR__ . "/../utils/basic-skipif.inc"; ?>
5<?php skip_if_not_libmongoc_crypto(); ?>
6<?php skip_if_not_replica_set_or_mongos_with_replica_set(); ?>
7<?php skip_if_server_version('<', '3.6'); ?>
8--FILE--
9<?php
10require_once __DIR__ . "/../utils/basic.inc";
11require_once __DIR__ . "/../utils/observer.php";
12
13(new CommandObserver)->observe(
14    function() {
15        $manager = new MongoDB\Driver\Manager(URI);
16        $session = $manager->startSession();
17
18        $query = new MongoDB\Driver\Query([]);
19        $manager->executeQuery(NS, $query, ['session' => $session]);
20        $manager->executeQuery(NS, $query, ['session' => $session]);
21    },
22    function(stdClass $command)
23    {
24        $hasAfterClusterTime = isset($command->readConcern->afterClusterTime);
25        printf("Read concern includes afterClusterTime: %s\n", ($hasAfterClusterTime ? 'yes' : 'no'));
26
27        $hasLevel = isset($command->readConcern->level);
28        printf("Read concern includes level: %s\n", ($hasLevel ? 'yes' : 'no'));
29    }
30);
31
32?>
33===DONE===
34<?php exit(0); ?>
35--EXPECT--
36Read concern includes afterClusterTime: no
37Read concern includes level: no
38Read concern includes afterClusterTime: yes
39Read concern includes level: no
40===DONE===
41