public function testDecrementNonIntegerValue()
{
$key = 'non_integer';
$value = 'no';
$result = $this->_redis->set($key, $value);
$this->assertTrue($result);
$result = $this->redis->decrement($key);
$this->assertFalse($result);
$result = $this->_redis->get($key);
$this->assertEqual($value, $result);
$result = $this->_redis->delete($key);
$this->assertEqual(1, $result);
}