Alcaeus\MongoDbAdapter\Tests\Mongo\MongoCollectionTest::testReadPreference PHP Method

    public function testReadPreference()
    {
        $collection = $this->getCollection();
        $this->assertSame(['type' => \MongoClient::RP_PRIMARY], $collection->getReadPreference());
        $this->assertFalse($collection->getSlaveOkay());
        $this->assertTrue($collection->setReadPreference(\MongoClient::RP_SECONDARY, [['a' => 'b']]));
        $this->assertSame(['type' => \MongoClient::RP_SECONDARY, 'tagsets' => [['a' => 'b']]], $collection->getReadPreference());
        $this->assertTrue($collection->getSlaveOkay());
        $this->assertTrue($collection->setSlaveOkay(true));
        $this->assertSame(['type' => \MongoClient::RP_SECONDARY_PREFERRED, 'tagsets' => [['a' => 'b']]], $collection->getReadPreference());
        $this->assertTrue($collection->setSlaveOkay(false));
        $this->assertArraySubset(['type' => \MongoClient::RP_PRIMARY], $collection->getReadPreference());
    }