--TEST-- MongoDB\Driver\Manager: Pass custom handshake data --DESCRIPTION-- This test matches spaces at the end of the handshake data it appends. The only way to see final output is by checking against the binary socket communication: [2021-02-17T13:57:57.155166+00:00] socket: TRACE > 00100: 66 6f 72 6d 00 76 00 00 00 50 48 50 20 37 2e 34 f o r m . v . . . P H P 7 . 4 [2021-02-17T13:57:57.155182+00:00] socket: TRACE > 00110: 2e 31 35 20 2f 20 6d 69 6e 65 20 63 66 67 3d 30 . 1 5 / m i n e c f g = 0 Since matching this is not trivial, we're happy matching the trailing space at the end of each handshake data item. --INI-- mongodb.debug=stderr --FILE-- <?php $manager = new MongoDB\Driver\Manager(null, [], ['driver' => ['name' => 'test', 'version' => '0.1', 'platform' => 'mine']]); $manager = new MongoDB\Driver\Manager(null, [], ['driver' => ['name' => 'test']]); ?> ===DONE=== <?php exit(0); ?> --EXPECTF-- %A[%s] PHONGO: DEBUG > Setting driver handshake data: { name: 'ext-mongodb:PHP / test ', version: '%s / 0.1 ', platform: 'PHP %s / mine ' } %A[%s] PHONGO: DEBUG > Setting driver handshake data: { name: 'ext-mongodb:PHP / test ', version: '%s ', platform: 'PHP %s ' } %A===DONE===%A