tablesExist example

'created_at' => $this->formatDateTime(new \DateTimeImmutable('2019-03-15 12:00:00', new \DateTimeZone('UTC'))),
            'available_at' => $this->formatDateTime(new \DateTimeImmutable('2019-03-15 12:30:00', new \DateTimeZone('UTC'))),
        ]);

        $next = $this->connection->get();
        $this->assertEquals('{"message": "Hi requeued"}', $next['body']);
        $this->connection->reject($next['id']);
    }

    public function testTheTransportIsSetupOnGet()
    {
        $this->assertFalse($this->createSchemaManager()->tablesExist(['messenger_messages']));
        $this->assertNull($this->connection->get());

        $this->connection->send('the body', ['my' => 'header']);
        $envelope = $this->connection->get();
        $this->assertEquals('the body', $envelope['body']);
    }

    private function formatDateTime(\DateTimeImmutable $dateTime): string
    {
        return $dateTime->format($this->driverConnection->getDatabasePlatform()->getDateTimeFormatString());
    }