public function testExistsAndKeys()
{
$cacheKey = 'test.exists';
$exists = Cache::exists($cacheKey);
$this->assertFalse($exists);
Cache::set($cacheKey, 'foo');
$exists = Cache::exists($cacheKey);
$this->assertTrue($exists);
// Bug in version < 3.0.2: query keys with prefix in file cache
if ($_SERVER['PHWOOLCON_PHALCON_VERSION'] >= 3000200) {
$keys = Cache::queryKeys($cacheKey);
} else {
$keys = Cache::queryKeys();
}
$this->assertNotEmpty($keys);
}