private function doTestWrongKeys(CachePeer $cache)
{
$cache->clean();
$value = 'a';
// unexist key
$this->assertNull($cache->get('b'));
$this->assertTrue($cache->isAlive());
$this->assertFalse($cache->replace('b', $value));
$this->assertTrue($cache->isAlive());
$this->assertFalse($cache->append('b', $value));
$this->assertTrue($cache->isAlive());
$this->assertNull($cache->increment('b', $value));
$this->assertTrue($cache->isAlive());
$this->assertNull($cache->decrement('b', $value));
$this->assertTrue($cache->isAlive());
$this->assertFalse($cache->delete('b'));
$this->assertTrue($cache->isAlive());
// wrong key
$this->assertNull($cache->get(null));
$this->assertTrue($cache->isAlive());
$this->assertFalse($cache->replace(null, $value));
$this->assertTrue($cache->isAlive());
$this->assertFalse($cache->append(null, $value));
$this->assertTrue($cache->isAlive());
$this->assertNull($cache->increment(null, $value));
$this->assertTrue($cache->isAlive());
$this->assertNull($cache->decrement(null, $value));
$this->assertTrue($cache->isAlive());
$this->assertFalse($cache->delete(null));
$this->assertTrue($cache->isAlive());
$cache->clean();
}
