ReplicatedBagOStuffTest.php

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<?php
 
class ReplicatedBagOStuffTest extends MediaWikiTestCase {
    private $writeCache;
    private $readCache;
    private $cache;
 
    protected function setUp() {
        parent::setUp();
 
        $this->writeCache = new HashBagOStuff();
        $this->readCache = new HashBagOStuff();
        $this->cache = new ReplicatedBagOStuff( [
            'writeFactory' => $this->writeCache,
            'readFactory' => $this->readCache,
        ] );
    }
 
    public function testSet() {
        $key = wfRandomString();
        $value = wfRandomString();
        $this->cache->set( $key, $value );
 
        // Write to master.
        $this->assertEquals( $this->writeCache->get( $key ), $value );
        // Don't write to slave. Replication is deferred to backend.
        $this->assertEquals( $this->readCache->get( $key ), false );
    }
 
    public function testGet() {
        $key = wfRandomString();
 
        $write = wfRandomString();
        $this->writeCache->set( $key, $write );
        $read = wfRandomString();
        $this->readCache->set( $key, $read );
 
        // Read from slave.
        $this->assertEquals( $this->cache->get( $key ), $read );
    }
 
    public function testGetAbsent() {
        $key = wfRandomString();
        $value = wfRandomString();
        $this->writeCache->set( $key, $value );
 
        // Don't read from master. No failover if value is absent.
        $this->assertEquals( $this->cache->get( $key ), false );
    }
}