public static final function getInstance(array $config)
{
if (static::$uniqueInstance == null) {
static::$uniqueInstance = new static();
}
static::$uniqueInstance->setConfig($config);
return static::$uniqueInstance;
}
/**
* @dataProvider provider
* @param $key
*/
public function testExistsAndDelete($key)
{
$this->assertTrue($this->handler->exists($key));
$this->assertTrue($this->handler->delete($key));
$this->assertFalse($this->handler->exists($key));
}