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<?php
namespace yiiunit\framework\caching;
use yiiunit\TestCase;
use yii\caching\Cache;
/**
* Base class for testing cache backends
*/
abstract class CacheTest extends TestCase
{
/**
* @return Cache
*/
abstract protected function getCacheInstance();
protected function setUp()
{
parent::setUp();
$this->mockApplication();
}
/**
* @return Cache
*/
public function prepare()
{
$cache = $this->getCacheInstance();
$cache->flush();
$cache->set('string_test', 'string_test');
$cache->set('number_test', 42);
$cache->set('array_test', array('array_test' => 'array_test'));
$cache['arrayaccess_test'] = new \stdClass();
return $cache;
}
/**
* default value of cache prefix is application id
*/
public function testKeyPrefix()
{
$cache = $this->getCacheInstance();
$this->assertNotNull(\Yii::$app->id);
$this->assertEquals(\Yii::$app->id, $cache->keyPrefix);
}
public function testSet()
{
$cache = $this->getCacheInstance();
$this->assertTrue($cache->set('string_test', 'string_test'));
$this->assertTrue($cache->set('number_test', 42));
$this->assertTrue($cache->set('array_test', array('array_test' => 'array_test')));
}
public function testGet()
{
$cache = $this->prepare();
$this->assertEquals('string_test', $cache->get('string_test'));
$this->assertEquals(42, $cache->get('number_test'));
$array = $cache->get('array_test');
$this->assertArrayHasKey('array_test', $array);
$this->assertEquals('array_test', $array['array_test']);
}
public function testArrayAccess()
{
$cache = $this->getCacheInstance();
$cache['arrayaccess_test'] = new \stdClass();
$this->assertInstanceOf('stdClass', $cache['arrayaccess_test']);
}
public function testGetNonExistent()
{
$cache = $this->getCacheInstance();
$this->assertFalse($cache->get('non_existent_key'));
}
public function testStoreSpecialValues()
{
$cache = $this->getCacheInstance();
$this->assertTrue($cache->set('null_value', null));
$this->assertNull($cache->get('null_value'));
$this->assertTrue($cache->set('bool_value', true));
$this->assertTrue($cache->get('bool_value'));
}
public function testMget()
{
$cache = $this->prepare();
$this->assertEquals(array('string_test' => 'string_test', 'number_test' => 42), $cache->mget(array('string_test', 'number_test')));
// ensure that order does not matter
$this->assertEquals(array('number_test' => 42, 'string_test' => 'string_test'), $cache->mget(array('number_test', 'string_test')));
$this->assertEquals(array('number_test' => 42, 'non_existent_key' => null), $cache->mget(array('number_test', 'non_existent_key')));
}
public function testExpire()
{
$cache = $this->getCacheInstance();
$this->assertTrue($cache->set('expire_test', 'expire_test', 2));
sleep(1);
$this->assertEquals('expire_test', $cache->get('expire_test'));
// wait a bit more than 2 sec to avoid random test failure
usleep(2500000);
$this->assertFalse($cache->get('expire_test'));
}
public function testAdd()
{
$cache = $this->prepare();
// should not change existing keys
$this->assertFalse($cache->add('number_test', 13));
$this->assertEquals(42, $cache->get('number_test'));
// should store data if it's not there yet
$this->assertFalse($cache->get('add_test'));
$this->assertTrue($cache->add('add_test', 13));
$this->assertEquals(13, $cache->get('add_test'));
}
public function testDelete()
{
$cache = $this->prepare();
$this->assertNotNull($cache->get('number_test'));
$this->assertTrue($cache->delete('number_test'));
$this->assertFalse($cache->get('number_test'));
}
public function testFlush()
{
$cache = $this->prepare();
$this->assertTrue($cache->flush());
$this->assertFalse($cache->get('number_test'));
}
}