CacheTest.php

<?php
/**
 * Piwik - free/libre analytics platform
 *
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

namespace Piwik\Tests\Unit;

use Piwik\Cache;
use Piwik\Piwik;
use Piwik\Tests\Framework\TestCase\UnitTestCase;

/**
 * @group Cache
 */
class CacheTest extends UnitTestCase
{
    public function test_getLazyCache_shouldCreateAnInstanceOfLazy()
    {
        $cache = Cache::getLazyCache();

        $this->assertTrue($cache instanceof Cache\Lazy);
    }

    public function test_getLazyCache_shouldAlwaysReturnTheSameInstance()
    {
        $cache1 = Cache::getLazyCache();
        $cache2 = Cache::getLazyCache();

        $this->assertSame($cache1, $cache2);
    }

    public function test_getEagerCache_shouldCreateAnInstanceOfEager()
    {
        $cache = Cache::getEagerCache();

        $this->assertTrue($cache instanceof Cache\Eager);
    }

    public function test_getEagerCache_shouldAlwaysReturnTheSameInstance()
    {
        $cache1 = Cache::getEagerCache();
        $cache2 = Cache::getEagerCache();

        $this->assertSame($cache1, $cache2);
    }

    public function test_getEagerCache_shouldPersistOnceEventWasTriggered()
    {
        $storageId = 'eagercache-test-ui';
        $cache = Cache::getEagerCache();
        $cache->save('test', 'mycontent'); // make sure something was changed, otherwise it won't save anything

        /** @var \Piwik\Cache\Backend $backend */
        $backend = $this->environment->get('Piwik\Cache\Backend');
        $this->assertFalse($backend->doContains($storageId));

        Piwik::postEvent('Request.dispatch.end'); // should trigger save

        $this->assertTrue($backend->doContains($storageId));
    }

    public function test_getTransientCache_shouldCreateAnInstanceOfTransient()
    {
        $cache = Cache::getTransientCache();

        $this->assertTrue($cache instanceof Cache\Transient);
    }

    public function test_getTransientCache_shouldAlwaysReturnTheSameInstance()
    {
        $cache1 = Cache::getTransientCache();
        $cache2 = Cache::getTransientCache();

        $this->assertSame($cache1, $cache2);
    }

    public function test_flushAll_shouldActuallyFlushAllCaches()
    {
        $cache1 = Cache::getTransientCache();
        $cache2 = Cache::getLazyCache();
        $cache3 = Cache::getEagerCache();

        $cache1->save('test1', 'content');
        $cache2->save('test2', 'content');
        $cache3->save('test3', 'content');

        $this->assertTrue($cache1->contains('test1'));
        $this->assertTrue($cache2->contains('test2'));
        $this->assertTrue($cache3->contains('test3'));

        Cache::flushAll();

        $this->assertFalse($cache1->contains('test1'));
        $this->assertFalse($cache2->contains('test2'));
        $this->assertFalse($cache3->contains('test3'));
    }

}