Sokil\Mongo\DatabaseTest::testReadPrimaryPreferred PHP Method

    public function testReadPrimaryPreferred()
    {
        $this->database->readPrimaryPreferred(array(array('dc' => 'kyiv'), array('dc' => 'lviv')));
        $this->assertEquals(array('type' => \MongoClient::RP_PRIMARY_PREFERRED, 'tagsets' => array(array('dc' => 'kyiv'), array('dc' => 'lviv'))), $this->database->getReadPreference());
    }